PDA

View Full Version : New Flyer


jessew47
Jan 18, 2005, 10:37 PM
I am new to rc flying and because of the weather am not able to get out and fly all that much right now. I have an estarter and have been practicing with FMS and a similar high wing model. I have a interface for my JR transmitter and I am not sure if I am getting real flight characteristics. For instance, have been practicing turning with both ailerons and rudder and it seems that when I apply left or right rudder to turn, the only way to complete the turn without crashing is to also apply a opposite aileron of my rudder direction and some up elevator. I guess what I am asking is this what you normally have to do, does it vary from plane to plane, or is this totally wrong and just a FMS situation.

rutat
Jan 18, 2005, 11:20 PM
Doesn't sound right to me. I DLed the Magister (for example) and it behaves like I expect.

snarum
Jan 19, 2005, 12:40 AM
<snip>

when I apply left or right rudder to turn, the only way to complete the turn without crashing is to also apply a opposite aileron of my rudder direction and some up elevator. I guess what I am asking is this what you normally have to do, does it vary from plane to plane, or is this totally wrong and just a FMS situation.

Depends on the plane. (For a high-wing trainer, that sounds suspicious though.)

Some planes require 'same' aileron to start the turn, and then 'opposite' aileron to keep it in a constant bank if you kick the rudder hard.

ALL planes require some up elevator in a turn with less than 45-degree bank angle to compensate for the reduced lift of the banked wing. (In some planes, the amount may be so small that ZERO is close enough, but technically, even those planes are loosing SOME altitude in the turn if you don't.)

All that said: your trainer will probably require a fair amount of 'up' during the turn, and will NOT need opposite aileron, unless you are pulling around way too hard.

In theory, with the dihedral angle built into a trainer plane's wing, you should be able to get a farily clean turn out of it with just rudder and elevator (edit) or aileron and elevator (/edit) inputs. And, if you release both rudder and aileron sticks, it should right itself.

Keep in mind when you read this though, that not all high-wing planes are set up like trainers. I am not familiar with the particular model you may have used in FMS, so I can't talk to your specific case.

perttime
Jan 19, 2005, 02:36 AM
Did you try turning without rudder, just using the ailerons and elevator, or using the rudder just to make the turn balanced? I thought that you might be over-using the rudder.

PM

slipstick
Jan 19, 2005, 04:21 AM
I think the problem is that you don't have enough experience to know what you're expecting ;). E.g. even in the real world many planes with ailerons will not turn properly if you try to use just rudder. Up elevator is almost always required to complete a rudder-only turn. If you want to fly without ailerons it's worth picking a model that's set up for rudder-only (there are lots available for FMS).

There are no general answers, it depends on exactly what plane you're using but nothing you've described is impossible to see in a real model out in the open air ;).

Steve