I Put a Cold Gas Thruster on my RC Rocket Car
Vložit
- čas přidán 26. 07. 2021
- In this video I'm experimenting with adding a cold gas thruster to an RC car to see if it can compete with the Tesla Roadster SpaceX edition. This system operates at a relatively high pressure so I don't recommend trying to replicate this unless you're knowledgeable in high pressure systems and can verify the gas pressure rating of the hardware you're using.
I was happy to be able to add a cold gas thruster to the RC car, but can 2 small displsable CO2 cartridges provide enough thrust for a full 0-60 run? - Věda a technologie
Buy PCP filling connector and PCP pump and fill the chamber with the regular air you will decrease the weight of the system significantly.
Hey Elon's going hot thrusters for Starship's boosters, so you can now feel good about using those model rocket motors!
Not anymore necessarily. In his walk through with EDA, he said that that they would just use the tank pressure for the RCS thrusters
Really nice work on the fan car and this beast! Nitrogen cartridges are readily available and should offer moderate performance improvement with Isp,theory of 80 sec vs. 67 for CO2. Also, putting a high output resistance heating coil on the subsonic side of the nozzle "should" improve performance even more by raising the speed of sound and therefore the V,exhaust, Isp, and thrust. Angling the exhaust up a little should improve down force by pushing the car into the ground. i.e. angling up 25 degrees still delivers 90% axial thrust, while giving 42% thrust as downforce. Regardless, I hope to see you put more development into these systems.
I'll look it up. Thanks for the tip
Best CZcams video I've seen in a while, I'm thinking about putting a fan set up on my drag car because of your video
Thanks for the kind words! Some day I'll get a nice sensoted setup and redo the undertray for a little less downforce. If I could fit it in the chassis, I may try doing it with just 1 fan to save weight.
Screw the shitty delay modules keeping it real against the big delay lobby I appreciate that you do this on an actual hobbyist budget though fr.
When I raced nitro touring cars. We would spray the track with regular soda pop on a sealed asphalt parking lot. That made a nice sticky surface similar to a drag track.
One of the best channels on you tube.
Thanks for the kind words!
Everyone at no preps, so much better than normal drag racing.
quality for this channel needs more subs
Great video idea
Thank you man thank you . This is fun .
The pressure won't drop until all the liquid has boiled to gas. Having your larger volume of pipes full of gas and liquid would increase your total impulse because the liquid/gas would have more thermal energy before start, and your actual fuel here is that ambient heat.
what about wrapping a heater coil around the cartridge before launch?
A de Laval nozzle might be the way to go. Not sure thrust arguementors would help as always thought they trade heat for added thrust - might be worth tinkering with. But, perhaps the main problem is the lack of reaction mass. Suggest completely prefilling the storage part of the system up with an easily liquifiable gas such as canned air. That only has about 60 PSI of pressure (keeping life simple and inexpensive), but it'll get in the way of the 800 PSI of CO2, while multiplying the mass severalfold. Thus the system average system pressure will be higher than your present setup, as will the mass, so there has to be a double +win (and it'll still be a cold gas thruster without costing much more at all). To accomplish this, a valve will need adding to the top and a method of connecting an inverted canned air bottle to it (4mm push-fit works on some canned air). Open valve, fill it up, close valve, fun. Some canned air is flammable. If dumping large amounts, best do so outside.
Had another look at the scale of the storage part. Perhaps you won't multiply the mass by several... But buy the time another fitting's been added and it's been lengthened, then perhaps :)
Ahh I came to the comments section to see if anyone had suggested this, and was not disappointed. Using a con-di nozzle is really the only way to go in my opinion if you really want to get serious thrust. I imagine you are already well aware of what I'm about to say based on your comment, you seem to know your shiz, but I'll mention it anyway because a) I haven't seen it elsewhere on here and b) someone else reading might find it informative. I actually design aerospace propulsion systems for a large and well known manufacturer, and rockets is one of many things I do on a weekly basis.
Thrust is very simple, a function of mass flow rate on exhaust velocity. But it's when you bring in propulsive power as a measure of success that it becomes clear why a de Laval nozzle (we tend to call it a con-di) makes the most sense, because propulsive power is a function of thrust and exhaust velocity, in other words, propulsive power is a function of mass flow rate and the exhaust velocity squared.
So velocity is key here, the faster the exhaust from the nozzle is moving, the better your rocket. In the video, he is using a simple orifice nozzle, with very little else going on, and I suspect he hasn't done the maths to understand what his optimum chamber pressure and throat-to-exit area ratios are for the gas he's using.
For what it's worth, I wouldn't have used CO2, I would have gone with N2O instead, it has similar density, can be bought in the same small canisters in the video, and has a slightly higher speed of sound.
If he did those calculations though, he isn't out of the woods yet, because his next major hurdle is chamber pressure drop. The size of the setup is clearly very small, so making the chamber or adding more tanks probably isn't practical. And since the pressure is limited by those canisters, which as you say is only about 60 PSI gauge, which at best only offers you a 0.2 pressure ratio, and that's at the start before the pressure drops. So to avoid that, he would need to account for the pressure drop in his area ratio sizing, somewhere around 1.1:1 would keep exit flow supersonic until the chamber pressure drops to 30 PSI. Then he might stand a good chance of decent acceleration. Looking at the drawing in the video at 6:04, he's gone for a roughly 4:1 area ratio, and probably made the throat area too big to achieve Mach 1 at the throat, so instead of acting like a nozzle, it probably made it worse, so the throat area needs to be appropriately scaled too. It might seem counterintuitive to make the nozzle smaller, but no-one ever said compressible flow physics is easy!
@@onetrickhorse A far more detailed answer than I could articulate :)
@@PhilipLeichauer I'm sure you're just modest!
Omg u are so under rated new subscriber btw
Ur gunna blow up soon I’m calling it
Awesome! Keep trying! What if you attach the thruster little forward and make its angle upwards so you will get little additional downforce for all tires from thruster itself?
Amazing 🔥
A very reliable launch control setup is built into the Flysky NB4 radio. It’s called CH Speed and essentially allows you to set your full throttle delay in 0.1 second steps. This allows you to pull full throttle every hit, but you can dial in the delay each time to help with traction.
Thanks for the tip...looking it up now
mad first guy i seen put a shocks on a wheelie bar kudos man
sensord unit and if your wanting to go straight just use a gyro should help...id like to know if you put the thruster on say channel 3 on a servo and to open it when the cars at full speed to see if you could gain any extra mph overall lol
If you would read the other post first from me or this is not going to make no sense And I've got one other suggestion on your suspension it works by gravity and when you go upside down the gravity is in the wrong direction so your suspension just tops out and no longer works but you could use the traditional air bag suspension but I don't think I'd go with airbags I think I would go with a push-pull very small pneumatic Ram and that way you're able to use a leveling valve and when you go upside down it just puts compressed air on the opposite side of the Ram there's a problem here if your weight transfer controls the pitch of the blades on your ducted fans then when you put compressed air on the opposite side of the Ram and bringing the suspension back to 0 your fans would go to 0 own your pitch and obviously the car would fall so you need a sensor that controls the suspension and how much constant downforce you need to be able to sense when the car is upside down or straight side up but with your G loading with three or higher G's this is not going to be easy to do putting a weighted pendulum in their isn't going to work I'm betting you're going to have to use some Avionics literally off of aircraft and just miniature rise it but if you get it figured out perhaps you've already thought of this when the car is straight up and down in the suspension the pressure above and below the piston in your Rams should be the same to where your suspension will steel float because the air is acting as a spring the two cars that had the mechanical downforce on the underwing I think the reason they chose to do it with the underwing with the technology back when they done that they didn't want to tackle some of the problems that I have mentioned if you go the directions I've suggesting but I don't think they had the tools that we have now like 3D printing I think if you're going do it do it right and the rewards will be incredible I've got a suggestion on that sensor problem if you used something like a laser tape have two of them at each wheel well aimed at the ground measuring the height of the vehicle one is melted to the body controlling ride height the other is mounted to the spindle side of the suspension so now you can have just a small control board processing the information from all eight sensors which the board controls four small servos one 4 each wheel well controlling the pitch of the blades on the ducted fan and the board is also controlling I know I had suggested a mechanical leveling valve system handling your weight transfer but if you go this route your control bored also becomes you're leveling valve system because with them 8 sensors now a control board with the right program should be able to set the car up for all the situations that it may encounter so that means you're going to have to have another board with micro solenoid valves to where you can put pressure on whatever side of the Piston you want and also be able to dump the air another side if needed it would take some engineering but I bet it'd be a heck of a car if built even if it was remote control are toy and I bet it get attention from even the Auto industry
i think it could be if the piping system was larger diameter/longer tubing and then filed with water. the water would be the mass ejected from the thuster.
have you heard of impedance matching? as it turns out matching exhaust pressure and speed with the air around it has a major effect on performance. bernoullis principal work well, although i dont know exactly why it improves thruster performance. they are called steam eductors or "air economisers." if you attach them to a standard air tool system they produce extra force for the same air input, and can be stacked or folded to improve performance.
He literally shows installing a converging diverging nozzle in the video.
@@D3moknight sorry i guess i was not paying attention at that time
Great, thanks
People ar going to start making 3rd party cold air thrusters for their normal cars.
900hp stripped out civic with cold air thrusters would be terrifying.
Looks Great! How about moving the position of the nozzle down so that it reduces the front wheel lift off?
I’d definitely look into playing with where your center of thrust is as well as the horizontal thrust vector. Angling the thrust vector so that it has a lower forward axis should push the nose down a good bit and still provide ample forward thrust as well. On top of this it should allow you to remove the wheelie bars since the thrust from the gas will push the nose down with how far forward the whole assembly is mounted to the chassis. I’d also recommend staying far away from rocket engines, they’re notoriously difficult to fire in unison or on a specific cue. I saw another comment recommend using nitrogen, I’d also explore that route. I’d also look into refillable 12g cartridges as well and do a hydrostatic failure test on them so you can see exactly how much pressure you can put in them. You may even be able to coat them in epoxy resin and carbon fiber to increase the strength. You’ll also want to look into optimizing the de laval nozzle. On such a small scale it’s really hard to tell if the nozzle is over or underexpanded without looking really closely. At first sight it does appear to be underexpanded but you’d have to pay specific attention to that and prototype a lot to figure out what looks the best. And fortunately that is something you can actually see in testing.
Have you considered combining the fan concept with the gas thruster. It might help counteract the stability and higher center of gravity issues.
I agree more pressure would help, but not sure what a cheap solution would be.
If it wasn't soo heavy I'd give it a shot...but that would put the slash at like 15 lbs!
3D print wider and lower frame to get lower center of gravity and different body style like porche 917? Wider tires and little more weight to go best % of front/rear.
Is it possible to use the thruster as a Steering, Balancing, Downforce system to maximize the motor's accel effect? I guess the tires' friction profit ratio is bigger than 1.0. Using the thruster to press down the car head may balance the car and release more power from the rear tires.
I'm gonna try these things
Wow this is so damn cool , would you mind sharing the various fittings you used for the thruster set up man you totally made an awesome one
Are you talking About the 25g to paintball adapter? That's interstate pneumatics WRCO2-320R-38
U could add Thrusters and Adhesive to your newest fancar!
Are you managing to hit supersonic flow with that CD nozzle? That's interesting, since you said that's the nozzle that showed the best performance.
Try aiming the gas thruster at a 45 degree angle off the vertical from the mid chassis position. Forward thrust would be less but would result in greater downward force for traction and might reduce mass by eliminating the wheelie bar. my 2 cents worth.
Can you install some sort of delay chip where power goes to the front first for just a fraction of a second before the rear activates? That way it "acts like a rolling start" and the rear doesn't cause a wheelie.
Edit: of course that would require a dual motor setup I assume.
I have a Tesla plaid
I’m trying to work with seeing if u can engineer having quad thrusters manifested in the trunk. Working with my local metal fab guy to see where the ideal weld position I can do on the frame and trying to regulate it. Good bud here!
Laminar air flow for faster exhaust rate?
Are you running a slash 4x4 chassis, and if so, I'd recommend running the LCG chassis as it helps greatly with stability and keeping the car to the ground with some good suspension tuning
Lcg chassis is on the way
Hey what does he connect his CO2 cartridges too? How does it poke a hole from you during his launch?
you could make a custom chassis?
You might want to consider a different fan car where the fan is providing forward thrust
Much easier to implement, can easily achieve multiple g's of acceleration
@Integza you have maybe some ideas
you should try casting some tires out of a grippy material like silicone or polyurethane. I've been experimenting with 40A poly tires on my losi mini-b and the difference in grip is substantial over the stock rubber tires.
and if you don't already have one, you should look into getting a center diff for you slash. that should help with the wheelies at launch - the center diff will dump power to the front wheels when they lift off the ground so it shouldn't wheelie as hard.
The problem with a center diff for a drag car is that unloading torque to the front wheels is worse than pulling a wheelie, because you are losing engine torque through the front wheels spinning. Without a center diff, as long as the back wheels aren't also spinning, you aren't losing any torque at all.
YES! Silicone is some grippy stuff! Instead of rubber tires screaching you here chattering as the silicone grips, stretches, and releases. LOL Takes more driving skill to prevent this but the result is higher performance.
I'm working on something very similar for my engineering degree project, but for a UAV. The chamber is a great idea for increasing mass flow rate - where did you find the plumbing/piping suitable for the 800 psi pressure?? Thanks!
I bought it online at various hardware retailers. You may start with McMaster Carr or similar.
This setup is a combination of the Lotus 78 aka the John Player Special Mk III and the Brabham BT46B by Gordon Murray. Is that why you are not using an RC dragster chassis? Is it possible the surface you are testing on with the deep grooves could be affecting both the tire traction and the suction of the fans? In other people's videos, they race their RC dragsters on a fresh asphalt surface. In any case, I am happy to find your channel and look forward to watching all your videos. Cool stuff!
Just watched the video with the first version of this car. Gordon Murray indeed!👍👍👍
I wonder how many people would know where this idea came from if you didn't tell them?
How about juat using model rocket engines? Easy as to implement and will probably get better thrust.
I specifically used cold gas thrusters because tesla plans to. Estes would be way easier for sure.
If your coefficient of friction is >1 why not point the thrusts upwards? Why assume teals thrusts will only be mounted at the back off the car an pointing backwards?
Partly because that's really not any different than the fan car, just way more limited. But mainly because the fan car is already motor limited so using the co2 for lateral thrust instead of dowforce lowers the power demand from the motor. I was hoping to also overcome the early stuttering with thrust as well. If I had enough CO2 on board to give me maybe 3lbs of downforce AND 9lbs of lateral thrust, I would probably have given that a shot but I'm not anywhere close to that.
So with the motor being the limiting factor, it wouldn't have improved on that build.
Going to a new sensored motor setup will end up being closer to $500 when the parts are back in stock, so there's no way I was going to do both on this 1 build.
I dont think tesla will be mounted only at the rear...what made you assume that was my assumption?
@@EngineeringAfterHours Sorry for assuming this was your assumption.
I have seen a lot of calculation for the feasibility of a system like this and they all assumed backwards thrust and the rocket equation.
I don't think the Tesla is power limited. that's why i think they will uses it for more down force especially on the front wheels.
maybe a "venturi compressed air vacuum system or blowing air over aerodynamic surfaces... don't know.
Anyways cool Project! (but i love the fan car more)
I have seen the same videos you're referring to and I think you're spot on.
Those videos ignore 2 things...you already mentioned the downforce actually giving you more acceleration than thrust alone when you're not power limited.
The second is the ability to further exploit a 1 foot roll out. I think tesla will use this some way to further improve their time.
I think top fuel dragsters do both of those things. Their exhaust produces something like 800lbs of downforce and wrinkle wall slicks are going to help it slingshot off the line really helping the rollout. So I don't think tesla is exploiting anything that doesn't already have a precedent for doing...people just seem to not like it for some reason.
Hey I your video on Reddit now I’m subscribed
Thanks for the sub...much appreciated!
Use quick exhaust valve for better results....
Try downforce for traction
How do you measure g? Do you have a tiny accelerometer?
Either gopro accelerometer or the skyrc gsm020
come on Elon, go hook up SpaceX with yo thruster to this project
Was the wheelie-bar spring loaded? Wouldn't that reduce your rear wheel normal force and therefore traction?
Maybe briefly...loading a wheelie bar period takes weight off the rear, but my goal was to drive the front back down since it's 4wd.
@@EngineeringAfterHours, oh, i get why your doing. Just wondering if the wheelie bar was sprung or just damped.
What is the static weight distribution? I would assume it needs to be front heavy, but did you find a practical limit?
Did you apply the thrust vector to the center of the car? Was it angled down at all? That would help with stability
Try it with 8s battery
Have you considered N2 instead of CO2? Some people will tell you that HPA is the same as N2 but if you shake the bottle you feel liquid, its not.. Pure N2 is a dry gas and should be better for your application. Co2 is a liquid so when you release it has to expand first which is the freezing effect. N2 will remain a gas so its ready to go. And there is a difference between n2 which is dry n2 and ln2 which is liquid nitrogen, it very stable so you can get it wet or dry...lol
Has integza seen this?
( SOLUTION) helium would be better than compressed air , that is helium compressed to over 2500psi ( fed into a precharged airgun compressor ) but were looking at ejection velocity alone , you also have the mass of the flow ( mass flow rate ) .. The mass actually favors co2 quite well being heavy , and since the ejection velocity is already an assumed 700 fps at critical temsp or 220 mps , co2 should suffice.. what you need to is a 12v heating element wrapping the tanks , have a gauge installed on the plenum so you know when to launch.( the smaller tanks are rated for about 9000psi , dont be scared ) . co2 will reach 2200 psi at about 120 degrees as i recall , then you will see some real acceleration and get better efficiency from the smaller canisters. AS for the nozzle design , im not sure but your plenum size ( expansion chamber ) needs be smaller if the propellent is exhausted before 1.2 seconds. ditch the servo delay , the acceleration from the thruster should exceed the cars ability to lose traction
This may be a crazy thought On your fan car are you willing to go completely outside the box and go another Direction accomplishing the same thing instead of hooking the fans to the underwing what if you used a centralized motor driving a driveshaft system and your ducted fans are mounted not sure quite how to put this but on the spindle side or tire side of the suspension bypassing the loading of the chassis now your fans are loading strictly the car Tire used inside the ducted fan variable-pitch on the blades that way your fans can stay spooled up you can probably let your weight transfer control the pitch own the blades each ducted fan would be at the wheel well aim straight up and you're not even sucking air from the road surface getting rid of all the problems of sand and debris but from the side of the car you could even put ducts and vents down the side of the car for air to be sucked through and you're using strictly thrust to push the car to the ground doing away with all the weather stripping and all that nightmare now I know this could prove to be more heavier with everything that is involved but I think the games outweigh the losses now it may be more power-hungry not sure beings you're using only one motor it could be more efficient if all four fans are at 0 pitch the only amperage you're using is just what it takes to stay spooled up on the fans the motor maintains the RPM you got it set at so you're amperage will go up as you add pitch on any of the fans if you look around there are better Battery Systems out there
I'll definitely have to think on this. Being able to decouple the downforce to the suspension would be really useful. Just like unsprung wings that apply downforce straight to the wheels.
Why do you keep running on concrete? Asphalt should give better grip.
It's really hard to find good asphalt areas close to where I live that are safe enough to run on. I've tried to get drag strips to allow me in the past with no luck.
Dang it's pept well ok
6:19m in and I want to tell you to talk to Integza! he's done a LOT of nozzle tests
Rocket science is not that hard, but it is completely different from automotive engineering. LOL
Dude, you need the thruster on the front, and have the thrust giving you down force and thrust...
Oo nangs
If you are using a rocket why on earth do you need more traction on the wheels? That would slow the car down. I'd run the wafer thin tyres with just enough friction to steer the car
The accelerations are additive.
to sum up the sheer and utter *nonsense* that is a top fuel Dragster: the _exhaust_ from one of those engines is pushing out roughly 1000 pounds of thrust...though if I recall correctly a good part of that is from unburnt fuel igniting when it finally gets some oxygen and turning their exhaust system into a literal rocket, if not a terribly efficient one.
Why not hit up your local drag strip and see if they would let you run on their prepped surface?
I'm definitely looking into drag strips around the area for a few projects.
@@EngineeringAfterHours I’m looking forward to it!
Noice
If you want to go fast and use cold gas as a thruster then what you and Elon should be aiming for is czcams.com/video/Q1eQw4ycgQM/video.html
A servo to operate the CO2 is going to be way too slow to get the gas out in about a second. You need something like a rupture disk or similar. If you can accelerate water like in a bottle rocket there is so much more potential for speed. Maybe even a venturi system hanging off the back of your nozzle.
Integza recently had a play with a co2 powered rocket.
wouldn't it be a lot more effective to use a water tank and have the gas push the water out like a rocket
Maybe. I tested that but may have had too little water
@@EngineeringAfterHours
roughly speaking you want a quantity of water such that all of the water and compressed gas are expelled by the same time. Anyway i think you shouldn't waste your time with gimmicky things like this and stick to things like the aero experiments (ground effect and so on). Those vids were very well done, reminds me of the rctestflight guy. keep up the good work i think you'll take off eventually :)
Cold gas no work? HOT GAS.
Yessss...steam rocket!
Bruh, your STEM degree is showing 🫣🙃
All fast cars need lcg
it could go even faster with better aerodynamics
And few more very wacky things to try so chance 1 second . I admit this 1 bit to out thir ha but has chance help . Say front steering done by drone g force strait line to control steering body all care is aro posably 2 out runner motors as hub motor 1 front 1 rear . Long . Very wacky but if you could test fly wheel affect using the more wheel wide as car with battery balanced set in sorting so chance it survive g force . The motor spins up to Max speed befor you lunch as it pulled up off ground , then spring or servo so can be tuned repeatable aurduino nano spring or servo drops it to ground to start using the battery with brush to end wheel to get power out . Then you get massive power store befor you take off posably 2 x motors continue rating . Vacum cleaner fan or few in series or parallel let sience and test set direction from result on slow motion . 1 at back maby 1 at front . But I had 4 wheel drive gtr in past down drag then 90 10 v 8 putting all weight on back wheel tuned was good . 4 w drive good as can turn and drag . But in your set up weight is enemy for time . Tune with slow motion can skirt maby more long and computer alignment front roller can turn few ways from top or 1 side servo outher hinged. Nano Audrey's can control servo 100 times faster than human to adjust power maby bit less off line . Hight few ways adjust vac fan speed .and to drop then back direct drive put runner with foam tyre all way across with all Wight can fit in battery few carbon brush or esc bat blue tooth in wheel wacky but lose all running gear and suspension airo box front back tear dropped 4 cell 1 battery to all or super cap to help if need . Storing vac befor in staged shell lo chance help . But duct fan got noting on vac fan blade if skirt is tight . Gues step backwards because of Wight enemy is carbon box out runner trike or car each corner with tyre . The rpm per volt is defonaly capable 100 kmh as used 1 in past on bike 4 kw to do 50 kmh with me on bike heat was prob long term I mounted it direct to tyre after calculate outside diameter x rpm per volt etc . Hope chat any chat program or line best want see under 1 second no thruster but fire work and computer strait stear longer narrow good aim push 1 button it adjust fly wheel back maby front wheel spun up to 200 km h gues to drop to ground and manage vac say full vac overdrive 4 cell on 3 cell vacum cleaner impepeller staged series or parcelled vac drops at say 50 km h so more power drive motor etc ato break after 100. Arduino could be easy set up to do that I can program bit below average . Fans etc think best bets limit only 60% if food for thorts. Another wacky idear to try has chance is bigger propellers get bit better efishant unless bumble be use swerl as well cool . But another easy for you try out side the box is electric helicopter can spin thir blades up with 0 angle to hi speed then they change angle up or down to make kg . I think that onto your car may be better that fixity skirt . Again Arduino micro controller to manage tune with hi speed . It's spin up and wheels swing up with battery in wheel to store / fly wheel befor start . Arduino changes angle of helicopter blades ontop your car pushing down then the back wheel maby front spinning at 200kmh drops to ground for run . Very funny but with micro and ultrasonic sensor front back you can easy use helicopter to lift all car off ground spin upwheels then drop it to do run . I think this has a good chance do under 1 second 0 to 100 with micro manage stear blade angle stop and off ground spin up no shock no running gear just hub motor all wires short tjink all motors run hier cell for second . My engineer freinds puts 7 kw threw his e bike 1 kw motor beats 4clnder to 70 kmh funny . Wow so happy if you do u der 1 second no thruster hope chat program rapid prototype brainstorm then sience result to stear direction fun. Helicopter head wacky but may be hable help stablise or stear as copper can . Auto break at 102 km h good unless law needs mow safety needs be foolproof eg test no blades test lo bat thowes coppers Do 100kmh easy gues it have be mounted forward as Wight shifts to back normaly less with chopper downforce think that be better than leaky vac box but let sience answer it you good at . Tune the chopper blades smaller if don't need lift 10 go but only 1 etc more power for drive motor to tune next body shape back tends form vacume sucking back is very important to may long narrow taper back . Think heard human in aro case cockroch fering got over 100 kmh tear drop shape. Carbon fibre tube for or c wheels tune length . To get fast car record does it need be 3 or 4 or 2 wheel ? Longer alot more stable better threw air . Neo track be interesting ha . Wonder if ypu have chance 1/4 mile as well with computer steering longer . The first few meters is the most important to tune . And next the 500 cc or 1000 cc dive tank things on e bay not shore but think most come with pump must be v small diameter as think they can be 4000 psi . Next project maby use 1 them in long car narrow wheel aro adjustable thrust angle to stay on ground and posanle middle wheel base to thrust bit up . Again very dangerous do on beach or something. Prob could use 2 cd per wheel has chance fast as well all air out in 2 sec maby verbal tap if need more at start to test which faster allowed to have wall at back maby helps start maby drop g force to sear flap front to just stay on ground be fastest time . Water heard but not shore this true . Under water sound Barrie been broken with sea wold or something like that it used rocket motor to move threw water faster than sound as most it except tip was in cavitation bubble is out thir maby thirt project on water chalange thowes drag boats think that be very hard airfoile above water managed by micro computer Arduino for hight wonder if 4000 psi e bay 1000cc thruster be better than Inrunner with more cells water tube around for cooling some let water go threw motor sceary . Cavitation bubble on prob be the hard part and think all probs under 60% efishant food for thort and the airless fans and is a vto car using it says has advantages over duckted fan to look up for all vehicles compressed air comes threw holed in shroud accelerate static air had advantages in doc seen . 2 l bottles can store 80 to 100 psi light fun some ships bubble air under to help wouldn't bet on water record but car think that close soon . Plane using 4000 psi cylinder with blades thruster may be fast as well but over speed sound things change alot . Did see u tube vid baseball going over 1000 mph vac in barrel plastic it breaks threw myth buster etc use with wow results fun watch . Sorry my spelling and some wacky idears but fun try some may help hope contact chat
Can you cut to the chase next time pls, meaning start with the video title
please call it RCS
RCS? Not sure I get the reference
Send the car to space and level the playing field. Multiple people have sent go pros to space help people of sent garlic bread to space.
Tesla commercial :p
Hi well done on the do . Is Thor any way to chat to you to refine brainstorm some improvement I use race gts was .3 sec of Australia record doing cheep things in past love rapid prototype let sience answer question thing good chance can do 1 second threw trial and error things like use can watch scirt learn . Biggest gain think is weight out 1 bat all series your fans change it to vacume cleaner fan if skirt improvement maby lose all running gear and motor in tyre . In past I used big out tuner on tyre to do 50 kmh on bike . Think heard aro at 30 miles h on bik is 80% energy etc vac at back v bad tear drop cocroach the shape the vac plate maby is all the framer 1 long wheel back outruner direct I think few trial s thir but you v good that and cam . Also all motors should be run at 1 cell more than rating for 2 sec run . Arduino nano could help us tune millisecond fun speed road motor soft start tuned . Predict 1 second no cold gas if can chat test look result learn do not just talk . I got line chat program I'd aaaarroonn. Love have neard freind chat to and maby do some bigger idears with if good person . I use make windmill from wash m motors r an p and wood made 5 m etc fun for me . So happy see you do this years ago I try contact company for similar aria mods and storage not h not lithium. But 20 manufacturers best got was Ford say can tell us but is not secret sad Elon mesage him lawyers no respons as well gues they get to much junk mail . And lithium Titaniant is nuts amps out for sise expensive maby that beats lipo I not shore again let sience answer q clamp meater go pro slo m etc . Yes I bad spelling but very inventive bottom line in mind . Hope add line chat program so can have chat rapid prototype fun for me. Again well done for do as do the best tallent
Or get a faster car brotha
Lol good luck believing what musk says
Dude stop the studdering and just use sensored motor's and sensored electric speed controllers..I like the content but the lack of a decent rc system drives me crazy. Thank and good luck..#castlecreations
Haha I got one...next fan car will be castle powered (1515 w/Monster X). These builds add up really quick so I have to spread the costs out.
how did you make the tire adhesive. i'd rather make it than buy it if i can.