How Much Elevator Throw is Enough
 

On high rates for doing 3D stuff and tumbles how much elevator throw do you really need. I would like to get my 60 Edge to do a lamchevac but am not sure I have enough throw. When I installed the elevator halves I kept the gap fairly tight. Also, do you need extreme elevator throw for blenders and flat spins?

Thanks,

Rino

RE: How Much Elevator Throw is Enough
 

Can you get 85 degrees?

RE: How Much Elevator Throw is Enough
 

I would start by setting up the elevators for the maximum mechanical travel it can yield. Including *****g out the servo endpoint travel on the radio. Now comes the trial and error. Dial back your settings to start. A simple test is a loop, observe, increase the throws and loop again. As you progress you will achieve tighter and tighter loops. It will reach a point where the plane will fall out in a loop, usually to the side. You have now found the limit of elevator throw for that particular model for flight. Speed is a factor as well. For a hover the deflection can be much greater as compared to flying. Triple rates on a radio was made for this aspect. Low and medium settings for flying and high rates for 3D. Hope this helps and good luck, Joe

RE: How Much Elevator Throw is Enough
 

No, more like 55 degrees. Do I really need 85 degrees for certain maneuvers?

RE: How Much Elevator Throw is Enough
 

I would say that depends on the plane. I am not familiar with your bird. On my Funtana anything past 60degrees dosn't help. i did however have to remove the covering from the stab and double bevel it. I did this after the ELEV was on and it was pretty simple.
Most of the 3D dosn't need the full 60degrees. The things that do are Waterfalls and Elevators. Lomcevaks and other tumbles don't seem to require that much deflection on mine. Keep in mind your rudder also. A good tumble needs a bunch of rudder.IMHO



David

RE: How Much Elevator Throw is Enough
 

I found the same thing with my Funtana 90, I can't get enough elevator with the unmodified plane. I haven't modified my Funtana, not sure if I will.

I've noticed that this problem of not having enough beveling is a very common problem with ARFs. I'm currently assembling a Quique Somenzini Yak 72". Fantasic quality kit, but it doesn't have enough bevel in the elevator to get the recommended 3D travel. I will probably end up with a gap that is larger than I like and seal the gap with clear Monokote.

Malcolm

RE: How Much Elevator Throw is Enough
 

Hey guys, thanks for the input. I am flying a pacific aeromodels edge 540 and I have 55 degrees of elevator throw. This seems to be plenty for 3D. Actually, I'm guessing I only need about 35 degrees to harrier. I guess I was thinking that I needed the extreme throw to do other tumbling stuff but I bet that the elevator would just stall anyways and act like an airbrake. I'll play around with it some more. Maybe I'm using too much throw and it's working against me. I might tone it down a bit and see what happens.

rino

RE: How Much Elevator Throw is Enough
 

55 should be fine. general rule of thumb is you need 45 degrees to do 3D

RE: How Much Elevator Throw is Enough
 

I like the head banging comment. I'm so good at it I think I'll start using it as a diet program. So, if you have more than 45 degrees of throw does the elevator just start to act as an air brake?

rino

RE: How Much Elevator Throw is Enough
 

Depends on the plane. That much throw would knock a Cap out of the sky. Joe

RE: How Much Elevator Throw is Enough
 

45 is enough. Anything more it becomes an air brake. tone your rates down to 45 or maybe a couple degrees over and you will have enough to do anything you would like to do.

RE: How Much Elevator Throw is Enough
 

how much throw? you can never get enough elev throw ;):D

RE: How Much Elevator Throw is Enough
 

3D ONdaEDGE, I like your answer the best. Instead of the great planes throw meter which is not accurate because the ruler part is not a perfect circle, I bought a simple protractor and took some measurements. I am getting exactly 45 degrees in each direction. I guess this should work well with about 65 to 70% expo.

Thanks,

rino

RE: How Much Elevator Throw is Enough
 

Rino, also consider dialing down the expo for hovering. On your dual rates leave the expo at 15% or so for the low side. When hovering all that expo will slow down the ELEV to much. It can be done but it makes it a lot tougher. I think that you will find 45 degrees to be plenty for most 3D.
I am curious about what radio you have. There are some mixes that might help some of the 3D.


David

RE: How Much Elevator Throw is Enough
 

Thanks for all the help. Unfortunately, it doesn't matter anymore for my Edge because I was cut in half by an Aeroworks 1/3 scale Edge while hovering today. Both planes were pretty much a total loss.

Rino.

RE: How Much Elevator Throw is Enough
 

Damn [:o]. Bad luck rino..... Any pics? [8D]

RE: How Much Elevator Throw is Enough
 

Any Pics? Brutal Grant, just brutal.

They say it's a big sky, Rino, I guess yours was a little smaller today. Sorry 'bout your plane.

Ken

RE: How Much Elevator Throw is Enough
 

No pics or video. I wish someone would have had a camcorder. Seeing that 1/3 scale go in would have been quite a show. When he hit me my plane wrapped around his wing and my pull pull cables cut his wing off.

RE: How Much Elevator Throw is Enough
 

i like a full flying stab with 360 coninuouse rotation at about 1000 rpm:)

RE: How Much Elevator Throw is Enough
 

LOL

Sorry about your plane! That sux! Must have been quite a show.