I want to make nymph with conventional tail as I do not have programmable radio. Would it be a good design? If so, would you be able to provide help to make conventional tail.

From : Don Stackhouse

No problem! A conventional tail will be slightly heavier, but although weight is extremely critical on Mosquito class models, a conventional tailed Nymph should still fly just fine. The modification isn't too difficult if you have a little R/C model building experience. If you don't have any experience, you should probably start with something like our 2-meter Chrysalis instead. Mosquito class models like the Nymph aren't all that difficult to fly, but they aren't really the best choice for beginners either. Start with something a little bigger and then build a Nymph after you've learned the basics.

You'll need a piece of 1/16" x 3" (1.6mm x 76.2mm) light "C" grain balsa sheet for the conventional tail, the two provided in the kit for the V-tail won't be big enough. I'd recommend that you keep the same 2" root and 1" tip chords for the stabilizer and fin as shown on the plans for the V-tail stabilizers. The rudder and elevator should be 1.5" (38mm) constant chord. Make the fin and rudder 3 5/8" (92mm) high. The span of the stabilizer and elevator should be 6 5/16" (160mm). Cut the bottom end of the rudder off at an angle that allows for about 20-25 degrees of up elevator travel.

This may not be the prettiest, but probably the lightest and strongest way to assemble it is to glue the stabilizer to the underside of the tail boom, then glue the fin on with its bottom edge resting on the upper surface of the stabilizer, and the side of the fin glued to the side of the tailboom. This way the fin and stabilizer act as braces for each other. Plan it so that the tailboom is on the same side of the fin as the rudder control horn. Yes, the fin will be offset slightly to one side, but it's not enough to be aerodynamically significant.

Make sure cut off enough of the bottom of the rudder, and to mount the rudder control horn high enough on the rudder that they don't interfere with the elevator linkage.

That's about all there is to it. If you still have more questions, just ask, and I'll do my best to help!

Don Stackhouse
DJ Aerotech