CMP Chipmunk 40
 

Hello all,
Anyone out there has the CMP Chipmunk 40? I just finished mine and want to know how is its flying characteristic?
Does it stall easily or not? I planning to fly it with 40 2 cycle, is that enough power?

Thanks
Borna

RE: CMP Chipmunk 40
 

40 2c will fly it and it wont be overpowered. It will def help keep it light. If you want more juice move to the 46-50 size 2s and have a blast then. Tip stalling wont be that bad if you have a decent cg and be mindful of the elevator at low speeds

good luck

RE: CMP Chipmunk 40
 

Stalling won't be a problem at all if you don't try to fly it too slowly.

Almost all Chipmunk models I've seen fly were considered to be risky to fly slowly, especially on landing. So the guys who flew them safely never tried to drag them into a landing. They knew enough to put a couple of insurance clicks into the throttle stick when the airplane had slowed for landing on approach.

The safest way to deal with any landing approach is to throttle back to idle on the landing wherever in the landing pattern you choose, and then push the transmitter's throttle stick back up from that full-down position a couple of clicks. A lot of newbies are afraid to land with ANY speed on the airplane and almost guarantee a stall and crash on approach.

They also usually use the takeoff technique of FIREWALL AND PRAY. That causes lots of stalled takeoffs when the engine/prop starts working far sooner than all the surfaces on the airplane have started flying. You know, the wing often starts flying before the tail. And the prop is flying from the time the airplane starts it's taxi roll.

Get an experienced flyer to fly your first flights. Explain your fears to him about your airplane. Make sure he shows you how slowly the airplane can fly (at least one mistake high). Look at the throttle setting at that speed. Have him take the throttle to idle after establishing that slow speed setting. Count the number of clicks that throttle stick moved from the slow flight setting to the idle setting. Now, when you're setting the model up on landing, bring the throttle to idle and back up that number of clicks plus a couple. And then concentrate on keeping the nose level. Not up, not way down, but level. Whenever you can't see the top of the nose of the airplane on landing, you're letting the plane pitch up nose high.

RE: CMP Chipmunk 40
 

It depends on how heavy you built it. And the recommended power for any model will almost always fly the airplane with a correct prop for the engine.

A friend of mine and I fly his 1.20 size model with an OS91FX and it flies great. Takes off great too. We often cruise it at half throttle (he can't see very good anymore and slower is easier for him to keep up with).

RE: CMP Chipmunk 40
 

Borna - the plane flies happily on a 46 2C but I would stay away from it, quality is not much to talk about. For me its the WM Super Chipmunk that is worth every cent. The CMP one needs for you to drill out the dowel plugs for the wing etc. Landing is not that bad, it does not need to come in hot but of course not like a trainer too. If I would to describe it, I will say if you can comfortably land something like the 4*, Super Sports etc with a little bit of speed,like on a high idle, then you can land this plane.