It's called a "trailing link suspension". The US Navy loves them (see an FA-18 carrier landing) and it's used on many private aircraft such as the Wilga.
It is also used in the Vespa front suspension, after WW2, Piaggio converted "pony" starter motors and gears from planes they made as an aircraft factory, to the front wheel and the engine of the Vespa ;-D
steamguy101 - -Yep. My Boeing Engineer/Lead mentioned the US Navy & maker of the F18 wound up doing ALOT of testing with different Landing gear designs suitable for demanding carrier landings! All that weight suddenly slamming down & @full throttle.
YellowBlue RC ? The idea behind a trailing link suspension is that when compressed the wheel moves not only up but back as well. Say for instance a wheel like this were to hit a road side curb too big for the wheel itself to go over - a regular suspension would come to an abrupt stop. A trailing link suspension would absorb the forward shock while the force pushing the wheel back would also lift it over the curb.
You better not because with the weight transfer when they depress makes that side depress even more so it goes from tilting one side to tilting the other side all the time. It works if you put a torsion bar like in car suspension but it becomes very complex.
@AwfulTromboneCovers Yes me too I don't even know the guy and when I found out I just started crying.R.I.P may your soul wander the infinite cosmos and see the universe expand and change.
I randomly came across this video after a while of not watching Samm's videos. Man... it hits hard that we won't have this dude making video for us anymore.. RIP Samm. You are a legend.
Sad to know that Samm is no longer with us :( Interesting that as a pilot, the "most fun" is doing touch and go's!!! Re this solution, the issue is the knee bend suspension moves the mounting points of the damper (aka "shock absorber") in an arc, rather than in a linear motion which I'm sure is its intended use (the Triumph TR6 used radial shock absorbers!!). As a result, we're seeing a lot of pushrod deflection because the piston is being torqued back and forth.There are other linkages that allow for more linear rather than radial displacement, so I'll leave that to those viewers who want to investigate further. Also, note that the starboard wheel doesn't stop spinning, while the port wheel does -- better check the bearing surfaces. Generally, nuts and bolts are not designed for use as axles/pivots, so there's a lot of flex from them, as well, so there are better and more expensive solutions. On a budget, all-in-all, a rather good day's work. Well done, Samm!
Trailing arm suspension :) Larger tires will make it even smoother on rough terrain. But the tires act like a spring with very little damping, so if your tires are too bouncy, the dampers (shocks) cannot work ideally. Maybe some rubber foam tires would work better than the air-filled ones. Not meant as a criticism, your set-up works really well! Just as some ideas if you want to do further projects for other applications.
YensR - -on our grass runway @Marymoore Park in Wash state we saw foam tires on new kits & they're too small for the Grass & didnt spin freely on its axle. Maybe ok on pavement, but as we see in this vid the pilot wants to land off-road too, so the existing DuBro tires seem perfect.
As others have said, this is basically trailing link landing gear, found on military F-18s and civilian PC-12s among many others. Neat video and project, thanks for sharing!
This is called Trailing Link Suspension. A lot of RC and Real Aircraft have this kind of suspension. If Mimickery is the Sincerest form of flattery; You Win the Prize. Great Job of making Home Made ones.
because people already came up with that idea and they invented crop duster airplanes. An RC plane is way too small to carry any significant amount of payload for crop dusting anything larger than your own personal garden.
Once again.. perfect bullseye on this. Also like your "attack angle" gauge via FPV. There are more applications for dynamic flight envelope feedback and you are the only one using it!
+Ian Mangham I'm still starting out, every take off is an experience, I still think myself lucky with a no damage landing, but I love that feeling, it's like a drug.
Nice documentation! I actually designed a set of these some years back--specifically to put on an R/C scratch-build Pilatus PC-21 I was designing[..they would retract as well.]. Never got to build it, but its still intend to. Part of the fun of NOT buying everything from the store is finding out 'IF' ones ideas will really work, aside from saving money. Thanks for sharing!
it's actually called knee type. ercoupe, P22, aero commander 112, lots of airplanes use them. this doesn't detract from your design. it just demonstrates brilliant minds think alike. very good job
Slastraf vw makes more gasoline then diesel, but diesel was wery popular in Germany until the scandal for anyone driving long distance on a regular basis - it's cheaper and less co2 footprint on long range. I own a seat based on vw's mqb and it's a great car.
Soft springs great for running, but for hard landing would great add additional tension in last 1/2 or 1/3 path. You can do it simply by add another short hard spring on the rod.
That was so cool. All of it. I love that camera position and the take offs and landings, especially with the new landing gear. It inspirational engineering.
Bump stops needed!!! Great simplistic design, just looks a little soft for the weight it's holding thicker silicone shock oil and slightly tighten up the spring and it will be good
Yea I was just using some 50w aircraft anyone oil haha. Note that they are stiff on the pavement though. I was testing on the most extreme terrain i could expect it to work on, yet it still does not bounce off the pavement
Samm Sheperd it's a great design, i just recommend using abit of nitro fuel tubing to make some small bump stops and use some string or braided cable as a flex restraint to save your shockers :) Just trying to help a guy out, keep up the great work buddy
Now use titanium for the flat pieces and put thin shoulder bearings in for the pivots. Then cover the shocks with a skinny balloon to help reduce drag.
hey Samm I've been checking your videos out over the last few weeks and it seems to have rekindled my interest in making an rc plane. I love the kind of planes you have from what I can tell you fabricate almost every part of them yourself which is exactly how I want to do it. one problem I have no idea what I'm doing. if you see this please help me with some tips for beginners like what kind of motors and controllers and foam you use, or just a link to somewhere I could get some information. thanks in advance keep up the videos they're a good watch for a nerd like me
In the interests of saving weight, you could craft the exact same suspension parts from polycarbonate (Lexan) sheet. It cuts and machines very similar to aluminum, can be bent with a heat gun or torch, and it'll be plenty strong enough for any structural components of an RC plane for less weight than aluminum. You could use plexiglass too, but it tends to be more brittle than polycarbonate, so it might be more prone to cracking under hard landings. Lexan would likely flex a bit more than aluminum, but I doubt it would be significantly different. You can clearly see even the aluminum control arms flexing pretty heavily at 1:55 in the frame-by-frame, so obviously a little bit of give isn't causing any major problems.
Dam Sam this experiment is magnificent. I am also in need of suspension for a different purpose. This will be a good start to continue experimenting. THANKS4GIVING
gear like this has been around for yrs. I came up with a very cool system back in 1998. it's a long the lines of yours but I went even further and customized everything. It's tkn me a few yrs to get all the ones out and speak with distributors etc. Hopefully by the end of summer everything will be in place to begin the first assembly line in China then will be for sale for all RC craft.
Great birds eye view of the gear action. Look at the OV-10 gear for another variation of spring/shock dynamics. I think there are or were some produced for RC.
Just a quick note, look to fit some small straps to stop the shocks topping out. This will reduce rapid rebound and take the pressure off the shock body when they quickly fully extend, CHEERS
Even though someone probably already brought this up, If you can you may be able to replace the springs/shocks with small air ones in terms it may be lighter and function better since you can prevent it from bottoming out? Just a suggestion.
And oddly enough, there is no shock absorber mechanism in those hobby "shocks". A shame, but maybe not needed. I personally would like to see a real damper in action.
Cool thanks for checking out my videos I also have a high wing conventional plane with a slat wing made up from 6 slats 2 by 20 each wing half spaced up 1/4 or 1/2 inch from each other. Looking at it from the top looks like a solid wing, looking at it through the leading edge you can see right between the slats and it files great cant really tell the difference I will try to post it
Interesting idea. It’s a trailing link as many other comments have pointed out, but instead of coil overs like you used, aircraft use oleos and no springs.
Very neat and cool. However with the pivot point in front, I feel that there would be some risk of the "knee's" hitting the ground and flipping the plane on landing, if the suspension were to bottom out.
What if you double up the aluminum part so piece on either side of the shock and drill holes in the aluminum for weight and air to pass through. May make it like more stable but that's a cool as heck setup! I'm same way i could do touch and goes back to back all day. Way fun!
cool concept. you should try using progressive or dual rate springs. basically this means there are different spring rates at different stages during the compression so both hard and soft landings can be absorbed well.
Trailing link suspension.. awesome way to soak up bumps... Dirt bikes trophy trucks and rock bouncer buggy's aren't the only place they can be handy...many navy aircraft used on carriers have trailing arm especially the rear gear ...a particularly good real aircraft example is the OV 10 bronco developed in the Vietnam era .. there's a few good CZcams videos of the OV10 bronco doing landing gear testing for the military.. insane stuff.. landing on plowed feilds ! imagine landing on a feild covered in alternating telephone poles
Great camerawork @ 1:16 , 1:59 . Without it, I wouldn't have believed the suspension could eliminate that much movement. BTW - I believe you when you say you thought of the suspension type on your own, but the trailing link design (as you know from friendly commentors) has been around for a while. I can relate, I've come up with some INGENIOUS ideas only to have a friend show it to me in a book!
Nice! You could make some sort of control arm so the damper doesn’t flex sideways. Something to make the damper only move the way it’s supposed to. It looked a little wobbly in slow motion. Then the damper will be even more effective and last longer. But I’m really impressed with your ingenuity and craft skills. Keep it up. 👍
Not sure if you care, but there are a lot of sharp edges and things that stick out on your plane which adds a lot of drag. If you rounded the front of your plane, smoothed over edges and wires you could probably improve your drag by about 25% easily.
I was able to make suspension for my plane by 3D printing two parallel struts, which allowed it to move linearly. I put rubber bands for the suspension. It was good in theory, but I overestimated the strength of the 3d printed plastic, and it snapped because of forward movement.
It's called a "trailing link suspension". The US Navy loves them (see an FA-18 carrier landing) and it's used on many private aircraft such as the Wilga.
steamguy101 Oh cool thanks!
It is also used in the Vespa front suspension, after WW2, Piaggio converted "pony" starter motors and gears from planes they made as an aircraft factory, to the front wheel and the engine of the Vespa ;-D
steamguy101 - -Yep. My Boeing Engineer/Lead mentioned the US Navy & maker of the F18 wound up doing ALOT of testing with different Landing gear designs suitable for demanding carrier landings! All that weight suddenly slamming down & @full throttle.
YellowBlue RC ?
The idea behind a trailing link suspension is that when compressed the wheel moves not only up but back as well.
Say for instance a wheel like this were to hit a road side curb too big for the wheel itself to go over - a regular suspension would come to an abrupt stop. A trailing link suspension would absorb the forward shock while the force pushing the wheel back would also lift it over the curb.
@@Renatodonadio I didn't know Vespa made dirt bikes. Oh ya, they don't. They make little runabouts perfect for getting a morning cappuccino.
It is called trailing link suspension the same as the air cooled VWs one of the reasons they were popular for beach buggys.
Suncity Books .
Also on the Pilatus PC-12.
Do you know where the Vespa front suspension came from? ;-D
You can see it on some motorcycles in both trailing and leading link designs?
The trailing link suspension we have now is not oil dampened and that's what he is showing
This is my favorite video of yours. RIP
A good tip: The shocks should depress with 15-20% under only the weight of the plane itself.
That way it helps with holes AND bumps.
You better not because with the weight transfer when they depress makes that side depress even more so it goes from tilting one side to tilting the other side all the time. It works if you put a torsion bar like in car suspension but it becomes very complex.
Now make them retract too
Pretty easy actually, just make hinge mechanism and put servo to operate lever system
the hard part is making it lock in a rigid down posision
And finding space where the gear would go so as to not drastically affect the CofG in relation to the CofL.
create something like a car handbrake mechanism
Sml132 uu
I am with the comedy cops and we will be sending you a ticket for your title joke.
Cameron D omg you saw it too😂 (basically he puts shock absorbers on a plane and says that the results are shocking😂)
Lol I thought the same exact thing
Rest in peace Samm. You will be missed.
@AwfulTromboneCovers Yes me too I don't even know the guy and when I found out I just started crying.R.I.P may your soul wander the infinite cosmos and see the universe expand and change.
What happened???
@@adamfacey5555 motorcycle accident
The suspense is killing me
Eagles_Eye LOL
Not sure whether to like or dislike this comment.
You're damping down the mood with this joke
I love you
😑😑😑 .... fine , that was pretty good 😞😞🙂
Awesome! This makes me want to dust off my carbon Z cub and make some new landing gear for it and go land it on hills
Pretty good idea! I like the "giant scale" plane at the end...
see if you can find a stiffer spring they look under sprung, but damper looks great
Jacob Westphal I was about to say that. They looked great on take off but bottomed out on landing.
Disagree. They look almost perfect. Most full scale oleostruts fully bottom on a hard landing.
Cycgnr i agree, they look pretty good, no need to be stiffer, they bottomed out only from the much to hard landing.
Jacob Westphal maybe just add a simple 1/8" preload spacer. Springs look a tiny bit short for the shock but the spring rate seems about right.
@@ROTAXD spring is to strong and not enough dampening. Needs different valving and oil
You've basically made an rc bush plane lol
I randomly came across this video after a while of not watching Samm's videos. Man... it hits hard that we won't have this dude making video for us anymore.. RIP Samm. You are a legend.
What happened to him
Sad to know that Samm is no longer with us :( Interesting that as a pilot, the "most fun" is doing touch and go's!!! Re this solution, the issue is the knee bend suspension moves the mounting points of the damper (aka "shock absorber") in an arc, rather than in a linear motion which I'm sure is its intended use (the Triumph TR6 used radial shock absorbers!!). As a result, we're seeing a lot of pushrod deflection because the piston is being torqued back and forth.There are other linkages that allow for more linear rather than radial displacement, so I'll leave that to those viewers who want to investigate further. Also, note that the starboard wheel doesn't stop spinning, while the port wheel does -- better check the bearing surfaces. Generally, nuts and bolts are not designed for use as axles/pivots, so there's a lot of flex from them, as well, so there are better and more expensive solutions. On a budget, all-in-all, a rather good day's work. Well done, Samm!
hobbes
1:44 Ryan Air
Andrew Joyce lol
Andrew Joyce lmao
Izagon Plays lol
I AM TOM lol
All of you lol
Trailing arm suspension :)
Larger tires will make it even smoother on rough terrain. But the tires act like a spring with very little damping, so if your tires are too bouncy, the dampers (shocks) cannot work ideally. Maybe some rubber foam tires would work better than the air-filled ones.
Not meant as a criticism, your set-up works really well! Just as some ideas if you want to do further projects for other applications.
YensR - -on our grass runway @Marymoore Park in Wash state we saw foam tires on new kits & they're too small for the Grass & didnt spin freely on its axle. Maybe ok on pavement, but as we see in this vid the pilot wants to land off-road too, so the existing DuBro tires seem perfect.
@@sammvoyager Interesting information.
3:55 I was thinking that was the biggest rc plane I have ever seen.....
My favourite video. Rest In Peace. He died too soon. This channel definitely had loads of potential...
have you ever comment that somebody lived too long? (except to me?)
Like if you enjoy the sounds of frequency modulation from a brush less motor
Its SATISFYING how suspension works
Legend has it that the OV-10 Bronco was supposed to be able to take off ACROSS the furrows of a plowed field. and it uses the same trailing link.
RIP. You are so awesome!
NICE! I always wondered why more folks didn't at least try to customize some springs. Great job on yours
I gotta give you "props"! Although that might be the most beater plane I've ever seen. Lol. Nice job.
Rest in Peace my friend
Nice... Off airport approved.
Thanks! I take great pride in this certificate of approval.
As others have said, this is basically trailing link landing gear, found on military F-18s and civilian PC-12s among many others. Neat video and project, thanks for sharing!
This is called Trailing Link Suspension. A lot of RC and Real Aircraft have this kind of suspension. If Mimickery is the Sincerest form of flattery; You Win the Prize. Great Job of making Home Made ones.
Trailing link suspension. One of the more desirable suspension setups. Great job! That works very well scaled down the way you did it!
Just had an idea , why not make a big one and use as a crop duster ?
because people already came up with that idea and they invented crop duster airplanes.
An RC plane is way too small to carry any significant amount of payload for crop dusting anything larger than your own personal garden.
The stability component is because you've built in lots of Caster. Looks cool!
Once again.. perfect bullseye on this. Also like your "attack angle" gauge via FPV. There are more applications for dynamic flight envelope feedback and you are the only one using it!
Reminds me of the RC BAJA trucks with long travel suspension. Nice execution.
landing and take off the highlight of every flight.
+Ian Mangham
I'm still starting out, every take off is an experience, I still think myself lucky with a no damage landing, but I love that feeling, it's like a drug.
Nice documentation! I actually designed a set of these some years back--specifically to put on an R/C scratch-build Pilatus PC-21 I was designing[..they would retract as well.].
Never got to build it, but its still intend to. Part of the fun of NOT buying everything from the store is finding out 'IF' ones ideas will really work, aside from saving money.
Thanks for sharing!
Nice that you've been able to do this and keep the weight acceptable!
+Patrick Thibaut these foam planes have a huge room for error. CG is still critical but you can get away with a lot of extra weight.
it's actually called knee type.
ercoupe, P22, aero commander 112, lots of airplanes use them.
this doesn't detract from your design. it just demonstrates brilliant minds think alike. very good job
I respect you for owning a VW.
Well thanks I guess. It's an adventure of self repair
VW squad bro i own one too
germans dont like volkswagen weil they are diesel and overwall bad performimg cars for the price
Slastraf vw makes more gasoline then diesel, but diesel was wery popular in Germany until the scandal for anyone driving long distance on a regular basis - it's cheaper and less co2 footprint on long range. I own a seat based on vw's mqb and it's a great car.
Seby1203Gaming -and more since when? I'm loving my VW Bora, 250.000km with no big repairs yet...
Great stuff Buddy. Looks like so much fun.
Of course they r shocking, u got shocks on that thing lol
Soft springs great for running, but for hard landing would great add additional tension in last 1/2 or 1/3 path. You can do it simply by add another short hard spring on the rod.
That was so cool. All of it. I love that camera position and the take offs and landings, especially with the new landing gear. It inspirational engineering.
Some form of bumpstop would be great for preventing the shocks bottoming out. Possible a limiting strap aswell to protect against over extending them.
They are meant to be thrashed on an RC truck setup. Bump stops are built into the struts already
Huge difference. Well done.
Bump stops needed!!!
Great simplistic design, just looks a little soft for the weight it's holding thicker silicone shock oil and slightly tighten up the spring and it will be good
Yea I was just using some 50w aircraft anyone oil haha. Note that they are stiff on the pavement though. I was testing on the most extreme terrain i could expect it to work on, yet it still does not bounce off the pavement
Samm Sheperd it's a great design, i just recommend using abit of nitro fuel tubing to make some small bump stops and use some string or braided cable as a flex restraint to save your shockers :)
Just trying to help a guy out, keep up the great work buddy
Now use titanium for the flat pieces and put thin shoulder bearings in for the pivots. Then cover the shocks with a skinny balloon to help reduce drag.
GOOD ON YA! A LITTLE BIT OF EXPERIENCE AND A LITTLE ENGINUITY AND THERE YOU HAVE IT. WELL DONE!
Recommended picking a spring with a rate that allows some static compression.
Great video showing the stresses on the gear! WOW. Thank you, Looks like northern CA.
"RC Plane Suspension: the results are shocking" nice shock absorber pun there
hey Samm I've been checking your videos out over the last few weeks and it seems to have rekindled my interest in making an rc plane. I love the kind of planes you have from what I can tell you fabricate almost every part of them yourself which is exactly how I want to do it. one problem I have no idea what I'm doing. if you see this please help me with some tips for beginners like what kind of motors and controllers and foam you use, or just a link to somewhere I could get some information. thanks in advance keep up the videos they're a good watch for a nerd like me
check out "flite test" and "peter sripol"
you can also look at "darkdragonwings"
(channels)
tc
ok ill check those out thanks!
Man on the Moon Iron giant. Like the profile pic.
In the interests of saving weight, you could craft the exact same suspension parts from polycarbonate (Lexan) sheet. It cuts and machines very similar to aluminum, can be bent with a heat gun or torch, and it'll be plenty strong enough for any structural components of an RC plane for less weight than aluminum. You could use plexiglass too, but it tends to be more brittle than polycarbonate, so it might be more prone to cracking under hard landings. Lexan would likely flex a bit more than aluminum, but I doubt it would be significantly different. You can clearly see even the aluminum control arms flexing pretty heavily at 1:55 in the frame-by-frame, so obviously a little bit of give isn't causing any major problems.
That was so cool and so needed. Good suspension would help any RC. Good job.
thats a great idea... got some rc shocks laying around laying around...
Wow..... Suuuper smooth... Very nice
this video was really suspenseful
Dam Sam this experiment is magnificent. I am also in need of suspension for a different purpose. This will be a good start to continue experimenting. THANKS4GIVING
I would love for this to be an industry standard 😎
gear like this has been around for yrs. I came up with a very cool system back in 1998. it's a long the lines of yours but I went even further and customized everything. It's tkn me a few yrs to get all the ones out and speak with distributors etc. Hopefully by the end of summer everything will be in place to begin the first assembly line in China then will be for sale for all RC craft.
What do I look up to find it?
Great birds eye view of the gear action. Look at the OV-10 gear for another variation of spring/shock dynamics. I think there are or were some produced for RC.
1:40 he wheel's like "dangit... I just stopped spinning!"
The right wheel...
R.I.P. Samm Sheperd.
Watching the suspension work makes me think of a gyro working the control surfaces
Awesome. Great job. I've always wanted to make an f18 that slams onto the runway like they do on an aircraft carrier
nice work. great fun. I'm 'disproportionately' into landing gear, lol.
Your plane is very aerodynamic...
Just a quick note, look to fit some small straps to stop the shocks topping out. This will reduce rapid rebound and take the pressure off the shock body when they quickly fully extend, CHEERS
The shocks do have rubber stoppers at the bottom of their travel tho. Thanks
We need more people like you
I'm late to this but I'm reminded of the OV-10 Bronco and the vids I saw of testing it's gear.
Even though someone probably already brought this up, If you can you may be able to replace the springs/shocks with small air ones in terms it may be lighter and function better since you can prevent it from bottoming out? Just a suggestion.
And oddly enough, there is no shock absorber mechanism in those hobby "shocks". A shame, but maybe not needed. I personally would like to see a real damper in action.
Cessna 404/6/8 series and even BAE146 use trailing link undercarriage. It's very forgiving. Makes even the roughest landings seem pretty good.
+Paul Kennedy got my commercial AMEL in a BE76 Can confirm they are nice :)
1:45
RyanAir:That's a perfect landing..
Outstanding work!
Probably my favourite video on the Internet. It's just so cool. Well done Samm
Wow man a vespa suspension, congratulations
you could probably use softer springs and proper rc damper oil 👍.. still though, great job man !
Really enjoyed your videos like your ideas and the fact that you show them in action, Thanks for sharing looking forward to more of your work
whatnextjoe Thank you! I was just watching your slat plane this morning! Cool Idea! Maybe I'll try some compound wing design also
Cool thanks for checking out my videos I also have a high wing conventional plane with a slat wing made up from 6 slats 2 by 20 each wing half spaced up 1/4 or 1/2 inch from each other. Looking at it from the top looks like a solid wing, looking at it through the leading edge you can see right between the slats and it files great cant really tell the difference I will try to post it
Now that it’s been a couple of years, I wonder how well they held up. There was a whole lotta flexing going on!
Interesting idea. It’s a trailing link as many other comments have pointed out, but instead of coil overs like you used, aircraft use oleos and no springs.
3:38 is the place where I always return to release the stress in my nerves my nerves... xD
Very neat and cool. However with the pivot point in front, I feel that there would be some risk of the "knee's" hitting the ground and flipping the plane on landing, if the suspension were to bottom out.
+John Walton Well it did bottom out several times. And having the pivot point behind was not nearly as effective, but it does come really close!
Very nice suspension
that´s so cool that a so simple but clever idé and how to solve it with parts and finely it seams to work rely good :)
What if you double up the aluminum part so piece on either side of the shock and drill holes in the aluminum for weight and air to pass through. May make it like more stable but that's a cool as heck setup! I'm same way i could do touch and goes back to back all day. Way fun!
Rip dude. Your legacy continues
cool concept. you should try using progressive or dual rate springs. basically this means there are different spring rates at different stages during the compression so both hard and soft landings can be absorbed well.
Cool man, liked your proof of concept.
It's called trailing link. Used on a number of military planes such as the L-39.
And on some Cessna twins like the 425
Trailing link suspension.. awesome way to soak up bumps... Dirt bikes trophy trucks and rock bouncer buggy's aren't the only place they can be handy...many navy aircraft used on carriers have trailing arm especially the rear gear ...a particularly good real aircraft example is the OV 10 bronco developed in the Vietnam era .. there's a few good CZcams videos of the OV10 bronco doing landing gear testing for the military.. insane stuff.. landing on plowed feilds ! imagine landing on a feild covered in alternating telephone poles
Put a slightly thicker oil in the shocks, it’ll smooth it out. And if you can revolve it, set the rebound damping stiffer
Been dreaming of this since i was a kid. Cheers and well done!
Every plane should come with this, jeez.
That's knee joint type suspension, that's what it's really called!
Great camerawork @ 1:16 , 1:59 .
Without it, I wouldn't have believed the suspension could eliminate that much movement.
BTW - I believe you when you say you thought of the suspension type on your own, but the trailing link design (as you know from friendly commentors) has been around for a while.
I can relate, I've come up with some INGENIOUS ideas only to have a friend show it to me in a book!
Nice! You could make some sort of control arm so the damper doesn’t flex sideways. Something to make the damper only move the way it’s supposed to. It looked a little wobbly in slow motion. Then the damper will be even more effective and last longer. But I’m really impressed with your ingenuity and craft skills. Keep it up. 👍
I think a lot of that flex was actually an effect caused by the cameras rolling shutter and the shock of impact
Not sure if you care, but there are a lot of sharp edges and things that stick out on your plane which adds a lot of drag. If you rounded the front of your plane, smoothed over edges and wires you could probably improve your drag by about 25% easily.
I know. It’s just a test bed plane, flies fine
You make me jump after that pun at the title
You mean, the results are amazing, not shocking? I think it's a very good idea.
I was able to make suspension for my plane by 3D printing two parallel struts, which allowed it to move linearly. I put rubber bands for the suspension. It was good in theory, but I overestimated the strength of the 3d printed plastic, and it snapped because of forward movement.
Nice, I've been thinking of doing that for a while.