G'day

If you like building, the Kadet Senior (wing span 78 inches, wing area 1150 sq in and a very low wing loading) is fun to build and an excellent trainer for the older learner. I have several and I use them to teach older learners as they are extremely stable. In its standard form the Kadet Senior does not have ailerons and has a lot of dihedral. This makes a plane that can fly its self if necessary. I set mine up with the rudder connected to the aileron channel on the radio and then when the learner moves to a four channel plane (or modifies the wing to add ailerons) the change is not a great one for them.

The Senior will fly with quite small engines - we have one flying with an OS LA 40 and I used to fly one with an OS FS 40. The 20cc petrol engine would be total overkill and would shake the model to pieces. I use a Saito 62 in my most used trainer and that suits it perfectly. I like the four strokes because they will plod along at low revs all day with no complaint and not dead stick.

I looked up the AMR kit. If you really want to use a gas engine, then it seems a sensible way to go as the AMR 20 is designed for gas engines. It is smaller than the Kadet Senior, and would fly considerably faster due to is smaller wing and higher wing loading with all that engine.

The LT-40 from Sig is also a good trainer. I am teaching a 52 year old with one at the moment. It has an OS LA 46 in it. The LA engines are not as powerful as the AX series but they are tougher and cheaper and suite the LT-40 perfectly.

I am about to retire my very old LT-25 and build a new one. The LT-25 is a smaller version of the LT-40 but it is not a small plane with its 63 inch wing. It needs only a 25 two stroke though mine has the old OS FS 40 I mentioned before. The new one will be getting either an ASP 30 four stroke, an Enya 25SSBB or a Saito 40. This also is an excellent trainer. I use it to help people to learn to land when they are having problems. It is quite tough and being lighter, is more difficult to damage on rough landings.

Hope a bit of this helps.

Mike in Oz