One FATAL Flaw | E-Flite UMX Turbo Timber Evolution
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- čas přidán 10. 11. 2023
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Our thoughts on the servo issues:
It's good for people to know about the necessary mods to prevent the linear servo issues discussed in various places online. Since it's clearly a well-understood issue by most RC folks in general, it's very likely Horizon knows about it, and they should:
-Lubricate the gears from the factory
-Send some lube with the plane, or tell people how to fix it via a product bulletin
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Happy Landings! Fly outside the box. 📦✈ - Zábava
Horizon hobby really heard you guys at 8:41 because here we are with a UMX draco 😂
Hey guys nice video! Spectacular flying as usual. I highly reccomend using Hob-E-Lube HL 657 white grease on all your linear servos. I put it on the gears and all over the little jack screw. After applying it and cycling the servos, you will immediately notice they move faster, and sound way more smooth and more healty. In the long run, this will prevent the motors from burning out, and will stop the plastic piece that rides on the jack screw from eventually stripping out prematurely. I don't know for sure, but perhaps it will help with the binding issue you are having. It is a plastic friendly grease that will not degrade the material. I have bought older umx planes off of ebay in which the linear servos could not move at all. After applying the grease and moving the sevos back and fourth by hand a few times, these old servos came to life again like they were new!
Thank you... first lube I have heard of that might actually work on these
I wore out the contacts for the strip on these linear servos on my Blade MCPX helicopter I flew it so much. LOL Can't grease that area though. Wish they could use a regular style servo. I've seen some really tiny ones, but probably still won't be quite as light I guess. Great video guys.
The UMX Turbo Timber Evolution: The *good* blue Timber.
No the original turbo timber was the best blue timber.
@@Squid_Wizard70 I was talking about the dark blue timbers if you couldn’t see.
No matter what UMX with linear servos, it's only a matter of time before trouble arises. Sometimes the excessive chatter problem can be solved by hitting it with contact cleaner. The long-term solution is to replace with nano servos. Of course that's not going to be worth it (bother or expense) for a lot of hobbyists, but I've found satisfaction there.
I always hated linear servos. But lately have been coming around to appreciate the newer versions from horizon. Iv found regular nano servos to be very hit or miss and really inconsistent with travel. The 1.7g servos are twitchy at best. Smallest worth having is the 2g imo. I'm building an fpv umx timber evo and had to ditch the flight controller to gain access to more channels. Was about to use 2g servos but decided to go with linear instead just cuz they've gotten to be more consistent, longer throw, faster and stronger. But they are obnoxiously loud at times
As someone who sells horizon hobby’s planes I can confirm most plane returns are umxs with servos that don’t work
Moving the clevis to the inner hole increases the servo load. I don’t know if the servo is locking up due to overloading but if it is then moving the clevis inboard will make things worse.
Loving your work and humor, the best!
I absolutely love this little plane! Thanks for the info re the elevator. I've put it through the wringer but haven't encountered that issue thankfully (yet 😊).
Definitely love watching your reviews, it’s something I always look forward to on saterday❤😂
I can already tell you that there will be a UMX Draco👍🏻😉 nice video guys
I see you guys are sampling Michael Cline RC. I found his channel 3 years ago and watch all his videos...not a lot of talk, just with the sticks. In my humble opinion, he's the smoothest most skilled RC pilot I've seen. It seems to come from 40+ years of flying and having done pattern flying. You guys are good too, especially at pushing a plane's envelope.
Yeah Mike is an artist on the sticks... fortunate to have had him as a Mentor in the Hobby at the very beginning..
Great video. Fortunately, my Evo didn't meet its end due to a locked servo. I accidentally drove my Typhon S6 at full speed into it while the Evo was parked at the field on a fun filled RC day...
Loving mine, thanks for the tips!!!
HaHa Perfect timing, I'm sitting here finishing up my newest foam board plane, going to do some bush flying today 😁
My elevator servo got stuck under load as well. I was able to land inverted and preserve the plane. Horizon eventually warrantied it, but the process was unnecessarily time consuming.
Out of the box I had to do a ton of mechanical elevator adjustment. It almost had no down authority. After that, It runs great.
However, this would scare off a newbie
I love my UMX timberX. I had an older umx timber before that, and I thought the original was maneuverable but not to the extreme of the timberX. That thing is a roll machine that makes the barrel roll rate in starfox seem slow
Had the same issues with mine. 2nd time out elevator locked came down and snapped the wing. Called horizon and they took care of me by sending a new plane. Of course I needed to send pictures and the receipt. Now I just turned down the throw to 97% and no issues
Another issue that I’ve had with two of these is the push rod extension attachment. They seem to be connected with tape. You have to be very careful when making mechanical adjustments. The first time it happened the rudder went flapping in the wind and the resulting crash totaled it. HH did make good on it but not without a lecture about how it wasn’t really a warrantee issue.
I bought the original UMX T.Timber a few years ago. It had good 2S performance and flew well indoors and we even landed it on a picnic table (with a raised edge). However, I flew it with floats on a pond and the wind flipped it over, shorting out the ailerons. I ordered a new wing, but also upgraded to the newer Blue Turbo Timber, which will NEVER fly off of water.
Ahhh! Finally! Some legit power! I need it.
I had this exact problem on my maiden flight. I was coming out of a loop and the servo completely locked out. Nose dived into the ground. Fortunately they replaced the plane. It absolutely exploded upon impact.
I had this exact issue as well on maiden smack into the ground not our 1st rodeo in RC so yeah they replaced the bird after they made me pay $54 shipping back to them so they could "repair it" ....
I just lost it on maiden today for this same reason. Did yall contact horizon or what? Super bummed about this.
@@FlyXenonRC Personally I did. They sent me a new model. What’s funny is that the exact same thing happened with the second one. I now have 2 airplanes but both of them are glued back together and don’t look very good.
My tips on preventing the servos from jamming up.
- Dab some synthetic grease in the "worm" screw in the linear servo.
- Try using as little electronic trim as possible on the elevator. Find the sweet spot and manually adjust the linkage to trim
- Set MAX travel on all servos to ~95%
Yea I set mine to 97 it tells u in manual to do it
@@snauzze7007 Makes sense to try this but where in the manual does it say to set it at 97%? I'm only seeing 100% for servo travel (pg. 4 of manual)...
I love mine. Just a great little plane!
They are a blast to fly in the wind. They sometimes get blown over once on the ground though.
I love seeing more flying videos! I could watch Tail Heavy all day!
Yah,that a really good airplane.I think it's a great trainer too.Its good at everything and it's even a good looking plane.I would love to have one.
Before I bought mine I messaged HH Support to ask about this known issue as I knew about it already. They said there is no known issue so I purchased one. No issues on the elevator yet but I can’t get past the low voltage cutoff 1 min into the flight, motor pulses and I have to land. Reported to HH but haven’t heard back yet.
Bigger or Better Batts will fix that...
I had the sticking elevator servo issue with both my first AND second UMX EVO. HH replaced the first after it crashed due to the stuck servo. The replacement plane did the same on the 4th or 5th flight but I did not go back to HH with the issue. I sprayed the servo with silicone a bunch of times as I worked the elevator up and down for I don't know how many times. I've since had maybe 50 flights without the servo issue rearing its ugly head. The plane, due to the crash repairs, looks like crap up close but sill flies well.
One flight started out normal but when I brought it back in to land, it went crazy...all controls were reversed and I almost crashed it in my house window. Somehow I got it down in 1 piece. Pulled the battery and binded again and controls normal. Still baffles me that controls got reversed on my DX6E.
Absolutely would like to see a UMX Draco.
I learned to fly on a umx turbo timber in a baseball field...but haven't tried the newer one on 3s I kinda jumped into 3d right after that
Thanks!
What an absolutely awesome viddy from the lunatics in the Granite State! I really love the multitude of flying locales, and all the different flying situations you always put your models in, no matter what the size of the aircraft. So I too had the dreaded elevator lock-out (about half-way thru the second battery), and I wasn't even banging on it too harshly, just doing some mellow figure eights out in front of me, no flaps, plenty of flying speed, and WHAMO! She spins in totally unresponsive and snaps the nose off. Oh well, I repaired it and gave it to one of my flying buddies sons. He really enjoys flying it. All the best to you guys, keep the awesome content rolling my friends!
Another CZcams RC influencer has suggested to reduce the 100% travel on all controls by 1 or 2 points to eliminate that locking action in these servos. If it's all right, I'll see if I can find that video and post a link with the numerical point in the presentation as a reference.
Thanks - we are aware of these fixes. This is copied from our video description:
Our thoughts on the servo issues:
It's good for people to know about the necessary mods to prevent the linear servo issues discussed in various places online. Since it's clearly a well-understood issue by most RC folks in general, it's very likely Horizon knows about it, and they should:
-Lubricate the gears from the factory
-Send some lube with the plane, or tell people how to fix it via a product bulletin
I just set all to 95% to be safe as I change trims later.... always need to be below 100 actual... 95% plus trims and mixes is often >100% and that is fatal for these little linear servos. Also, frequently check for dirt, especially in the wing servos. Last but not least... for all but high alpha low speed --' maybe DON'T go to the innermost hole on the control surface horn... that adds a lot of load, (like 2-3x!) for a given throw and airspeed.
Can’t wait for the apprentice stol review.
Yes please... I already am flyin the Crap outta mine... BTW 3S is totally capable with the Stock setup... yes I got vid...
Hey yall! I have one and love it to death but that issue got me it an inverted loop 😅. Luckily it somehow recovered and i fixed the problem by unscrewing the plastic servo thing from the board and replacing it with another one from another broken plane's aileron. After a little bit of oil ive never had that issue again
Your dog is cute 🥰
have had to replace the right aileron servo twice now, first time it caught fire when it flipped on the water and a few months after the replacement servo died in the air, luckily it was in the neutral position and i could land and horizon sent me a new servo.
Take all the linear servos and the as3x brick off and build is with micro 3.5 gram servos and a receiver with the case taken off and you have the ultimate plane. More throw than you know what to do with and it comes out lighter in the end.
I almost lost my umx pitts trying to do a high G fast loop and it did not wanna pull up until it slowed down
I've been waiting a while for this one.
Ive just received a UMX T Timber Evo. Out of the box the left aileron servo has an intermittent fault. it works, and then suddenly locks and does not return to neutral. Issue seems electronic rather than a mechanical bind up. Very lucky not to have written it off on first flight. Taking back to shop and hoping they will replace as it was faultyout of the box! Shame as its a beautiful little plane. Hoping the replacement doesn't have the elevator issue!!
The pushrod mod is a must. Also, the ultimate umx timber is as follows: buy the timber kit. Install micro servos, upgrade all control hinges, and up the size of the tailwheel along with up size tailwheel mount. Make sure CG is good and you have a umx timber with no SAFE , more throw than you'd ever need, and rudder authority on the ground. The ultimate front yard plane.
Sounds heavy 🧐
Why are things so heavy in the future? Is there a problem with the Earth's gravitational pull?
@@sailingeric 😎
That explains why mine went nose dive into the ground totaling it didn’t know it was the planes fault well there goes the warranty
Hell yea UMX Draco!!!
Can this thing take payload? Thinking gps/gimbal cam/FLIR/stereoscopic cam package
I crashed mine (my mistake), glued the fuselage together and flew it a few times until I noticed the wings were cracked at the base. I think I'll end up getting new wings because the cracks developed a gap that messes up the geometry of the wings if I try to glue them :(
Before that, it didnt have any issues... thanks for the info about the elevator servo though. I did read about it some time ago, but wasnt sure about the nature of the issue.
One question... most of these UMX planes have those linear servos, but that issue seems to mostly show up in the UMXTTEvo... what could be the difference with the other UMXs?
Would you recommend the Umx TT Evo or saving up for the multiplex funcub? The funcub looks great it’s just over double the price of the Umx
Im bringing a small fishingrod with me. Got my plane down from a roof that way in the winter.
I was never the biggest umx fan until I got one of these. It's crazy how good it is. And for the first time ever is a quiet umx. I plan to swap all the electronics of one into the og timber since I'm not crazy about pilatus look. Bought the entire airframe new from horizon just for that project.. also building one with headtracking fpv.. had to scrap the fc for that tho. Went from only having 1 umx just cuz to having 4 of these.. thats how good it is
A 10 warthog, UMX elevator servo locked out on me as well. Smashing into the ground UMX suck. I repaired it the foam that is and it flew again no problems till I finally sold it
I lost my UMX Timber to the servo lockout as well. I never knew it was a common issue.
It is really frustrating that Horizon hasn’t acknowledged it or a suggested fix via something like a product bulletin. Sorry you lost your plane.
I bought mine maybe 4 months ago. The landing gear is garbage. I took mine off and just hand launch it. It is much lighter and more docile.
I think I may have experienced servo lockout.
I lost mine in a tree for a week.... It rained on it for a couple days.... Has some rash from wind... But it's been holding up well to my newbie torture.
How did you unscrew the elevator push rod from the control horn? I did the rudder just fine but the elevator is at a bad angle
Heat up a small rod, melt hole through fuselage, easy access for screwdriver. Silly design, but the hole doesn't impact anything (just be careful of course) and it makes adjustments a breeze. If you look closely in the video, you'll see they've created a hole as well.
At this point, i take a long extendable duster handle pole with me everywhere. I bought it after my airplane had been in the neighbor's tree for about 3 weeks. Really hard to beat.
Mine had the elevator lock up as well, second flight it locked full down coming out of an outside snap into inverted. I was forced to cut throttle and let it come down through the trees.
Horizon replaced my plane for me thankfully.
Weird thing is that after cycling the power the elevator unlocked and has been working perfectly since then (probably 20 flights without issues now).
Still think this is the best UMX Timber to date, I've got them all and this one is awesome other than the elevator issue which seems to be a little too common.
I don't think it's the fault of AS3X that you can't dial in more elevator travel, the linear servo only has so much travel possible and at 100% rates it's using it. I also moved all the pushrods inwards for more travel. It is what it is and it's one of the negatives of linear servos.
It's unfortunate they made this one with the tail servos as part of the brick, would have made repairs so much easier if the servo could be replaced.
Sorry to hear about your servo! Glad they replaced it. As for AS3X - by definition, AS3X limits full travel because in order for a gyro to work, it needs to have extra travel on either end to make adjustments in flight for extraneous inputs (turbulence, wind, etc). Think of it like how our GoPros/iPhones/Androids do video stabilization by means of cropping in their picture. Even though your radio says 100%, the servos still can physically move more so the AS3X can work. If AS3X was able to be truly disabled, you'd be able to get more travel from the radio.
@@TailHeavyProductions I know what you're saying works with standard servo equipped planes when you unlock the receiver and get access to another 25% travel in each direction. I like doing this on all my planes that have a standard receiver so I use all the servo resolution then limit the travel mechanically to prevent binding and damaging hinges.
Where I'm not sure it works is with Linear servos, I'll have a look and see how much of the linear servo travel is used when rates are at 100%. I'm pretty sure there's very little available travel remaining once at full stick deflection and 100% rates. It's also why many people set their rates to 98% on UMX planes in order to prevent over-driving the linear servo.
We can talk more on RcG's
Keep the vids coming, weather has been terrible here, I haven't been able to get out flying for a while so videos are all I have for now 😜
Right now these are $89 at Towerhobbies in the Scratch and Dent section. Their only “defect”is bubbling stickers because the surfaces were not prepped properly. I just ordered two. As of 11/25 these are still in stock, and still $89. At that price it’s a steal! Order over $100 you get free shipping and $20 back in Tower cash…that’s insane!
I get wanting to see how much performance you can get from these UMX planes, but just from looking at the delicate control horns, foam construction, and tiny servos, I fly mine more gently and don’t subject them to high G’s.
Any repairs I use Beacon Foam Tac, which is magical stuff! Also Deoxit 5 is great for taking the chatter out of linear servos. I have a large fleet of UMX planes, many are discontinued, so I hate to fly them too hard and risk losing a plane that’s practically irreplaceable.
I've had some success with foam tac. fwiw I've found the clear gorilla glue to be a more durable repair on these.
No warranty on those Tower Hobbies scratch and dent deals. I bought two also and the first one immediately destroyed itself due to the elevator issue. I'm afraid to put the other one in the air
@@CaliforniaOutdoorsman Yeah, there seems to be some reported issues with elevator servos locking up on RCG threads. One suggestion is to limit servo travel to about 95% to prevent overextending. It’s a good idea to slightly reduce linear servo travel on every UMX plane. Doesn’t need much, maybe 95-98%, just not 100%. it’s just a good insurance policy to reduce the odds of linear servo lock at ends. Spray the servos with Deoxit 5 lube as well. Good luck!
A very insightful and epic video guys BTW Did you guys ever get to fly the UMX Air Tractor I wonder if that UMX is a capable of the same stuff as this UMX is??
Thanks! We haven’t tried it yet.
Can't wait for next weeks video on the Turbo Timber, and the week after that and the week after that and the week after that....
Unfortunately ive lost the ability to fly nearly as often as id like, and the UMX has been my fallback. After running my UMX turbo timber 2s version 1 for 3 years, its sadly time for a replacement. I learned fixed wing and was introduced to STOL with this tiny fellow. Its leade onto a timber misson that now upsets my immediate family, as IMO, every version has its use case, and im a cub guy ao hard it makes folks i dont know frustrated lol😅. Learned to flip over a wire, and eventually ripped the gear CLEAN off. Glued back, and still can use floats! Battery options have always been TERRIBLE also. Im sad to hang up my 1st cub, but its also right. Ive been looking forward to specifically replacing it, and looked towards the newer 3s when the time id here. This makes me far more excited to do so, and seems like horizon nailed another UMX! Cant wait to see what the 1st whole release year in the hands if crazy hobbyists does fir this tiny bird! Anither great and thorough review, with a relatable and realistic outlook and use! Thanks for bouncing one on for us!!!❤❤❤
Ps- i need a GD UMX WILGA of ANY KIND in my life..... Horizon........
I’ve been waiting for a new video
I did try it with 450mah lipo, flight time was insane bur you can also feel weight of the battery.
I would love to see a umx draco
i love this plane
Please take a look at the UMX ultrix, you would like it
Both ultrix models are amazing. The 600mm with 3s 2200mAh is one of the best fpv fixed wing models i have ever flown.. just amazing fun from the ground up
Could the elevator servo be replaced by a micro servo? a little DIY and the flaw is fixed.
Would love to see a UMX Draco 😎😎😎
It just came out
flipped mine back in june on water, the battery hatch is still out there
Rest in peace to all the brothers who attempted the inverted pass with the UMX Timber. XD
Hey btw I love flying this bird in mid wind it's a timber it's built for it
My last two umx models have let me down a very short time into owning them. Both with servo problems, the last one failed whilst in the air and so it crashed into the ground. I'd like the new bi plane but I don't dear bye it.
Hi, do you think it would be interesting to do a review on one of the Flightory plane ? Cuz i need an opinion of experimented people
@tailheavyproductions
I am going to but this plane and I want advice
Here’s the plane: FlightLine Fw 190 D-9 Dora 850mm (33") Wingspan - PNP
Hell ya you all should call up horizon and ask them for a umx Draco
Another great vid! 😂
Would you recommend this or the sport cub S2 for a beginner?
PS I'm not really clear on how you feel about the twin Timber... 🤣
Sport Cub S2 👍
Could setting servo travel to something less than 100 like 97% solve the issue?
You guys should buy a canoe and tie it up nearby 👍
Haven’t watched the whole video, but can guarantee that I’m going to enjoy it. Always love watching your videos. You guys make my day infinitely better keep it up.
Great video, really enjoyed it, thank you! :)
I have a couple of questions regarding this model:
1. Will it be a good first RC plane? I have plenty experience flying FPV multirotors, but no experience with planes.
2. Is the servo in question easily replaceable/repairable?
3. Will I be able to convert this model into FPV sometime down the road?
Thanks!
1. It definitely isn't the easiest first model but it could work as a first. 2. No it is attached to the main control board of the plane but i have mine set to 97% throws and have never run into an issue. 3. The channel Inverted Aviators actually have a video guide on how they converted theirs to fpv
@@Tp_132 What would you recommend as a first model? Aeroscout?
@@VasylDemianov aeroscout is the perfect choice
@@Tp_132 Another question regarding the servos: so the problem is with "overextesion" of the servo, in which case ot "locks" itself, do I understand this right?
How hard is it to upgrade the servo?
Never mind the single or twin timber, TRI-TIMBER WHEN
Another Stellar video gentleman!!
HH doesn't make the planes they sell. FMS makes 97% of all foam planes (& yes, wood too) sold worldwide.
I will wait buying one, till there is the V2 model
Did you lower your travel on all surfaces I put mine on 97 % for all
Horizon still hasn't figured out how to improve those UMX servos? They've been at this for a decade now, you think they'd learn.
Mine got its rudder to rip off somehow sadly :( currently attempting to fix it
Had the same thing happen. Well not completely ripped off but came detached by the tail last outing. Glued it back and hoping for the best
i don't know how many times i crashed mine before i figured out my receiver board broke loose . i'm on my second one now lol
Can you make a review of HOBBYZONE Aeroscout?
I literally lost this plane on the maiden today. Full elevator servo lock full up. I thought I had lost connection until I arrived on scene and every other servo was in working order. Completely bashed the front end in. Even have a video of it just stuck. Super sad honestly, flew great for a few minuits.
So sorry to hear this. We continue to get comments like this, and it's frustrating as Horizon continues to sell a model with a known defect and still have not acknowledged it via a product bulletin.
how about something crazy like...
UMX HABU????
So I'm not the only one that has trouble with horizon...!!!
They have had parts for my maiden failed Beaver on backorder for 6 months now, Figured I'd share that with everyone.
AND not to mention all the dropped and kicked off chats either by the agent or virtual ASSistant (first 3 letters are KEY)
Yes they are EXperts at brushing a paying customer off. AND Experts at taking large amounts of money for minimum standard equipment.
Thanks Horizon.
This happened too me on my umx turbo timber. When i repaired it i noticed the carbon fiber rod pulled out glued it back and still have the rear flap get stuck in the down position. Now i stay away from that brand
Probably wont buy another unless they do a umx draco
For me it wasn't the elevator sticking. It was the glue on the linkage to the elevator that came up. Rendering the elevator useless.
When it fails out of the box, Horizon has always come through for me. What bothers me is that their gear is Windows only and they do not disclose this anywhere. Which wouldn't be an issue if they didn't ship products that are not ready for prime time. The NX10 I bought had been out for almost 2 years, but needed a firmware update out of the box. Still does, and always will be crippled as a result. But I found this out after 6 months, so I'm stuck with it.
Love my UMX Turbo Timber, but that NX10 represents my last Spektrum Transmitter purchase. Radiomaster is all I will use going forward. Oddly enough, for the same reason many people went with Windows instead of Apple. Radiomaster is a little harder to figure out, but it's a fraction of the price. Ironic.
Can I bind with my RadioMaster TX16 MKII 4 in one Transmitter?
Yes you can with the 4 in 1.
My umx servos just couldn't handle it lol just kept going up until it disappeared 😂
Inverted flat spin took mine out
I use these from my drive to keep current when I'm too busy to go to the field for a while, they're great.. But please forget the UMX wiener idea. Some things in this world should stay full size.
Are there any balsa rc kits on the market anymore?
No.... Foam or nothing.... Not really.... Of course there are still Balsa planes... but other than Guillows very few Balsa models at this size.
Can u do the umx citation please
Why would they "do" anything with such an old model that is now discontinued?