Design an FPV Fixed Wing by Forum Decision

[Charliewalker]

Can't really see this working, not being negative but it seems everybody's ideas of  "the perfect platform"
are so different, so if a compromise was reached at the end it'd be like someone said earlier a Bixler or Twinstar etc etc. having said that, hearing everyones comments is very interesting & is food for thought for improvements for my next project, so please keep it going, thoroughly enjoying this one.       

[Lola]

Can't really see this working, not being negative but it seems everybody's ideas of  "the perfect platform"
are so different, so if a compromise was reached at the end it'd be like someone said earlier a Bixler or Twinstar etc etc. having said that, hearing everyones comments is very interesting & is food for thought for improvements for my next project, so please keep it going, thoroughly enjoying this one.     

This is a good'n, I like the 3 motor arrangement on a fixed wing, one to push and the two motors on the wing can tilt up for VTOL.

I know it's been done before but surely not as good as we can 😜


It is right 😀

[Ratty]

I just did some air to air filming for my mates VTOL.

Great for taking off and landing in tight places.  ;D


RC VTOL V22 Osprey - Music Video

[electrotor]

I reckoned it was worth starting a new thread purely on tiltrotor as it is more specialised that this thread is intended for.

http://www.fpvhub.com/index.php/topic,22075.new.html#new

[skyscraper]

Right!  Today we should be  discussing Wing configuration - Single, twin (WTF!) delta or Diamond?

Here is my view  I guess really down to my next plane that I am thinking about

Biplane -- Too much drag and too much work. The WW1 planes used it cos they found they could hang wires between the wings to stiffen it up. Now we got carbon tubes to stiffen it up :D

so (for me)  Biplane = REJECTED

Delta  --  Only reason to go delta is if we want to go supersonic, or we want a wing. Thing with a wing is there are so many already.  What is there new to say?

so (for me) Delta = REJECTED

Whoever said Diamond? Come on speak up.. You have been put in detention for takin the Pisss!!

So Diamond  = REJECTED

That leaves good old plank config.  I'm currently wanting a thermal soarer and reckon it'll be this sort of layout. Only question is what size. I like small, but 'm going to solve that and make it as small as poss, based on what I want to put in it.

For me that is as well as motor esc batt, servos

APM2.5 and or PX4 FC
Airspeed sensor
GPS
External Magnetometer prob on wing
FrSky DX4 RcRx
25 mW 5.8 Vtx, Immersion or Homebrew
Current sensor
Telemetry for my tracker
UBEC ( or maybe 2)
EDIT: 12V switching reg unless I go 3S, but using standard 3S 2200 lipos is one option I'm thinking since I have some. Just a question of whether there is enough juice once the rest of the design is sorted.
EDIT : OSD MinimOSD unless I can get my homebrew one sorted out
   
I want it streamlined and easy acces to gear so that will also be a factor.  I like small but dont like fiddly and Also want it big enough that launching isnt too tricky so musty be quite floaty, easy to launch by hand in still air. Maybe will use Flapperons to help with that.  I'm also thinking about using good ole balsa for the wing and if its still sold in 3' lengths makes a 6 foot span nice and neat!

But dont let me take over the thread. What are other peoples thoughts?

regards
Andy

[Hawkview]

What about a canard plane.
This would make a cool fpv plane.

[wgt40w]

Right!  Today we should be  discussing Wing configuration - Single, twin (WTF!) delta or Diamond?

Here is my view  I guess really down to my next plane that I am thinking about

Biplane -- Too much drag and too much work. The WW1 planes used it cos they found they could hang wires between the wings to stiffen it up. Now we got carbon tubes to stiffen it up :D

so (for me)  Biplane = REJECTED

Delta  --  Only reason to go delta is if we want to go supersonic, or we want a wing. Thing with a wing is there are so many already.  What is there new to say?

so (for me) Delta = REJECTED

Whoever said Diamond? Come on speak up.. You have been put in detention for takin the Pisss!!

So Diamond  = REJECTED

That leaves good old plank config.  I'm currently wanting a thermal soarer and reckon it'll be this sort of layout. Only question is what size. I like small, but 'm going to solve that and make it as small as poss, based on what I want to put in it.

For me that is as well as motor esc batt, servos

APM2.5 and or PX4 FC
Airspeed sensor
GPS
External Magnetometer prob on wing
FrSky DX4 RcRx
25 mW 5.8 Vtx, Immersion or Homebrew
Current sensor
Telemetry for my tracker
UBEC ( or maybe 2)
EDIT: 12V switching reg unless I go 3S, but using standard 3S 2200 lipos is one option I'm thinking since I have some. Just a question of whether there is enough juice once the rest of the design is sorted.
EDIT : OSD MinimOSD unless I can get my homebrew one sorted out
   
I want it streamlined and easy acces to gear so that will also be a factor.  I like small but dont like fiddly and Also want it big enough that launching isnt too tricky so musty be quite floaty, easy to launch by hand in still air. Maybe will use Flapperons to help with that.  I'm also thinking about using good ole balsa for the wing and if its still sold in 3' lengths makes a 6 foot span nice and neat!

But dont let me take over the thread. What are other peoples thoughts?

regards
Andy

Err, can't see any Tuesday / Wednesday discussion re Tail Configuration. Are we suggesting something tail-less ????

[skyscraper]

Err, can't see any Tuesday / Wednesday discussion re Tail Configuration. Are we suggesting something tail-less ????

Choice between tail or tailless is really whether you want simplicity, practicality ruggedness or good glide performance. I have my Flyingwings Falcon Wing ( tailless) which can be put in the car easily, was easy to build and is very rugged, so if that what you are after a wing is the way to go

Since I've done plenty of wings I want to try a conventional config and try to get good glide and long flights on small batteries, so that is what I'm concentrating on. I would like to keep tail off the ground to avoid it getting damaged on landing so Ive gone for a V tail. Not as good aerodynamically as a T tail, but better from a structural point of view so whole rear part of plane can be lighter.

I'm not sure if that is the spirit of the thread, I'm pretty much just describing the rationale for the design I showed in the sketch somewhere up the thread! That is what I want at the moment, but once I've doen it I'll prob want something else again!

Interesting though the subject of design by commitee. I suppose you should look at the defence industry and relationship with governments to see how well design by commitee works for full size planes. It seems to  be a rocky road !

regards
Andy

[stevec]

this sums it up...

/Steve

[Lola]

this sums it up...

/Steve

:D

[skyscraper]

Too true! . In fact  That is mild in my experience

If you want something doing ... Open ya wallet and give me the money ..... then I'll give you exactly what I wanted  :laugh: .   :laugh:

regards
Andy

[wgt40w]

Just keeping the 'pot' stirred !!