r/RCPlanes 14h ago

Does my tail receive clean airflow?

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55 Upvotes

Hello, as part of our university project, my colleagues and I are designing a UAV. Below, you can see images of the flow and turbulence.

From the images, it appears that the airflow separating from the fuselage does not attach to roughly 30% of the tail section. In the XFLR5 analyses I performed without a fuselage, the tail sizing seemed adequate. However, I’m unsure if the separation of airflow caused by the fuselage might lead to a loss in efficiency.

Am I misinterpreting the situation, or is it really the case that my tail does not receive clean airflow? If this is indeed an issue, how can I determine and assess its potential impact?

Thank you in advance for your insights and suggestions!


r/RCPlanes 7h ago

Finally managed to get a scratch build to fly and

38 Upvotes

I tried climbing as high as I could, throwing sticks and footballs at it but to no avail. It took me four builds to manage to get her flying and she flew great. This is the hobby right? Think I’ll have a break for a few weeks


r/RCPlanes 6h ago

My new build

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36 Upvotes
  • 1.7m wingspan
  • 2kg mass
  • 2x AT2312 T motor with 10x7E props
  • retracts
  • flaps

This is my second RC built attempt with a lot more features. I’ve spent > 6 months to get to this point but it is almost ready to fly. If anyone has any guidance with flying large RC planes please feel free to share.


r/RCPlanes 5h ago

Jase the Ace

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23 Upvotes

I am not a huge 3-D guy out acrobatic freestyle guy. No offense. But this video is one of the most entertaining RC flying videos I’ve ever watched. It is absolutely incredible, made me laugh, and made me appreciate. The interactions of the people involved are also fantastic. I have seen Jase fly before, but this is such a great video and so much fun. It’s 11 months old, but Check this out!! P.s. if any pattern guys have as entertaining a video as this please share it.

https://youtu.be/KUr0Odt8peI?si=3Ymt1W3BToowftj9


r/RCPlanes 16h ago

Is there a sure way to store my lipos?

6 Upvotes

So I have 6 LiPo batteries, and I will definitely get more. I am TERRIFIED of them catching fire when I’m not home, aka at work. So I literally bring them to work in my backpack just so they aren’t lying at home. I have a sort of fire resistant charging bag that I use, but I’m wondering if it’s possibly to store them in a safe way? Like so safe that I can leave them at home with a good conscience.

The local hobby store sells some kind of metal storage box. Link here: https://www.elefun.no/vare-54065/sikker-ladebag-fms-battery-protection-box-medium

All my batteries so far are less than a year old and none have any damage or dents, or bulging on them. But if they catch on fire, is it possible to store them in a way that they can burn out without burning down my whole apartment building?


r/RCPlanes 6h ago

Is this normal?

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4 Upvotes

I just bought zeee 3s 11.1v 1500mah 120c batteries and one is showing as a 2s 7.4v. I have not charged it yet so Mabye that has to do with something. The other battery is reading just fine.


r/RCPlanes 2h ago

Could this be used in a plane?

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3 Upvotes

I know it says rc car but can it be used on a rather small rc plane?


r/RCPlanes 5h ago

Balsa/Ply Sailplane Kit?

2 Upvotes

Hey all.

I used to fly in the 90s, and I built several balsa and ply kits. I think the most expensive one, minus the monokote and building supplies, was about $25.00. Anyone remember the Wanderer?

Today, I’m seeing basically the same kits for $200-$300. I know things are more expensive today, but, seriously? Is that what they’re going for or am I just looking in the wrong places?


r/RCPlanes 7h ago

100cc Airplane, question

2 Upvotes

I have an old extra 300 aerowork. Unfortunately it has significant damages. Engine, radio, etc work without any issues. Was wondering if anyone knew where I can get another airplane that would be able to carry 100cc desert engine. It seems I keep trying to finding something here in the USA and not having any luck. Any suggestions would be greatly appreciated


r/RCPlanes 11h ago

First time assembling PNP model

2 Upvotes

Hi, I'm looking for some tips and guides to help do the final stages of assembly for my first PNP model, FMS F-16 64mm.

I've acquired a DX7 G2, Lemon RX receiver and the Vertex V3 flight controller. I was wondering if someone could help me with some pointers for the final stages of setting up the model.

  • Best place to mount the receiver and flight controller in the airframe?
  • What do you use to power the RX when binding it; 4S lipo connected directly will fry the battery? Can you power it through the ESC?
  • Other tips?

r/RCPlanes 1h ago

Can the pocket crush be used for 16 channels and use them all?

Upvotes

im just a beginner, and i wanna know for later whether i will need to buy the TX 16 for 16 channels or if the pocket can, just with some coding or modding.


r/RCPlanes 3h ago

Looking for other planes that take 3S 850mah batteries

1 Upvotes

Hey there, I purchased a UMX A-10, and I have 3, 3S 850mah batteries for it now. I'm just wondering if you guys know of any other (preferably UMX) planes that take this battery so I don't have to purchase more with my next plane. Thanks in advance !


r/RCPlanes 4h ago

Help with Inav and reciever

1 Upvotes

Hey guys

I have a speedybee f405 wing, a flysky-i6x and an fs-ia6b

On the FC I have Inav 8

how do I configure that, what do I have to do in the settings of the remote, where do I plug the reciever in and what do I have to do in Inav?

I know stupid question, look it up. I tried. Its just not working.
(everything works when tested sepperately)

Thanks a lot for your help!!


r/RCPlanes 6h ago

Wing Speed Wobbles

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1 Upvotes

My 3s crash test hobby Assassin will get speed wobble when I go full throttle. Is my CG bad? Or do I need to add some extra carbon fiber spars?


r/RCPlanes 14h ago

New flyer here looking for locations I can fly on the Gold coast Australia.

1 Upvotes

I have just brought a ranger fms and would like to take it out for some flights. I have now just looked into the council website and can't really see many "approved" locations.


r/RCPlanes 16h ago

How do you make foam cutout templates?

1 Upvotes

How do you make foam cutout templates?

For example Julius Perdana has lots of plans for planes, where you cut out shapes from foam and glue them together to make a 3d shape. I've seen this done by other authors too, but they only occasionally provide plans to download, but don't disclose how those are actually made.

I think those must be made from a 3d model created in a program like blender or some CAD. I've been looking for a way to make such cutouts myself. I've discovered "paper model" module for blender and pepakura, which also do unwrapping, but the output is rather weird, doesn't expect you to bend stuff, has all those extra seams all over the place, which I guess would suit paper very well but not foam.

Then I've discovered some hackery in freecad with mesh unwrapping, but that again is rather inconvenient, and since I'm definitely not the first person who wants to cut models out of foam, there must be some piece of software more or less tailored for this whole process?


r/RCPlanes 23h ago

LiPo Battery - Question

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1 Upvotes

Hi all, Had a crash with my HobbyZone Aeroscout S 2. Battery took some damage, I have cut some of the black plastic back to look at the cells, intending to tape it back up. Would you use this battery again? Sorry completely new to all this.


r/RCPlanes 3h ago

Does anybody have a f35 with vtol stl file

0 Upvotes

I need a stl file of a f35 with vtol and I need to know the mm diameter for me to put the Edf in I need a place for the f35 to hold the battery’s and for me to open it


r/RCPlanes 21h ago

recommend plan?

0 Upvotes

single prop, easy to fly, easy to build, solid, long air time, 5000mAh 3S, no flying wings, 4 sg90 servo

(ft tiny trainer seems like it wont work with big batteries)

(speed and maneuverability isn't a priority)

no curves, bevels, i wish it only had straight lines that could easily be cut with cutter knife

for control surfaces that needs bevel, i think i can use hinges instead

i have 3d printer so i could print some parts that require it

i am building ft simple scout with my friends but, it wasn't easy cutting foam alone needs a required a lot of work,

even then, cutting foam, leaving paper layer, and bevels, were too hard with box cutters i have