Rc airplane assistance.

Ok so I am constructing a scratch airplane as some of you may have read on m other questions. I have reached another dilemma, whether or not a moving rudder is completely crucial. I'm thinking i could get away with just having a stabalizer fin in place of the rudder.
 Any help from you pros?

Thanks, Bud

AndyGadget5 years ago

Are you planning to have ailerons and elevator?  If so, you can get away without a moving rudder but it will be slow to respond as you'll be rotating it with the ailerons and banking with the elevator - The 'bank and yank' method - As opposed to yawing with the rudder and banking into the turn.  You'll still need a tailfin to maintain directional stability.

An alternative is the RET plane - Rudder, Elevator, Throttle.  RET is best used on a plane with a smallish wingspan compared to the length as it reacts more quickly.  I've made and flown a couple of Nutballs which are RET.  Easier to make and fly than more traditional shaped planes, very manouvrable and lots of fun.  Build plans are HERE.
Re-design5 years ago
I fly R/C and very seldom use the rudder. I don't fly pattern aerobatics but if I did I would use the rudder much more often though. Lots of planes are built and fly just fine without a working rudder but they have to have working ailerons and elevator..
rickharris5 years ago
If your going to use ailerons and elevator you may get away with just a vertical stabiliser.

Banking the aircraft and then pulling it round with the elevator.

It is more common to use elevator and rudder and no ailerons though.

Do you have a reason for this idea.

elevons are another alternative.

https://www.google.co.uk/#hl=en&safe=off&sa=X&ei=reRYUMvCEIrB0gWzj4CwDQ&ved=0CBoQBSgA&q=rudderless+RC+aircraft&spell=1&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.&fp=de8927dea74cc9e9&biw=1920&bih=919

may be useful