Just liberated this , If your going for the ' plank wing ' I think the T Bolt treatments gunna beea improvement .
In rough air / wind theres less yaw & bounce with the egged tips . Little plank wing Cassutt Goodyears in N Z Winds yawed and rolled decidedly . Very definately educationally .
That said , theres a pile of ' 1/2 A A.M.A. .049 stunt ships . a bit of hunting will find some .
Seems ' half size '( of a .35 / 40 FSR / ST 46 ship ), about 11 to 15 ounce was about the game . but theyre actually a quater the wing area . If you look at say the ' Mirage ' 30 inch span Vs 60 .
Think they manadged 55 foot of .012 wire . Give or take .
The other way 'd be a . 15 size 30 " snotbox . Say a Aeroflite Hurricane / P-051 / Spitfire . 1.5 cc to 2.5 cc sucker . Which if you double the size / quadruple the area . you can throw in a 51 or .60 . or V.c.V.
The good U S 1/2 A .049 ships were fairly sophisticated . To siple a aproach might get to simple a result .
SO , youre going to need to check the ' power loading ' and ' weight loading ' , as in if theres a heavy electric engine & batteries - thats going to dictate the wing area for a 15 Oz Sq Ft set up .
Thus a light motor battery will be a advantage - along with clean aerodynamics . whatever that means .
You could have a hoot trying your battery / motor combo on a discard FAI Combat wing . With a monowheel .
Useing a foam combat wing leading edge for a starting point'd get you a metre / 40 inch span .
That horrible plastic stuff and minialist airframe TEOSWAKI ish , might get you a clean low drag L/W thing with a bit of area . Which I think youll find you need .
Unless you go for a TeeDee / Norvil 049 / 061 / 1cc grunter equivilant electric set up and similar airframe to the U S .049 comp models .
Well, you did ask.
just my ten cents worth . The tiny ( 2 foot span ? ) foam scale R C electric comercial things , ive always thought would convert well to a ' kids ' control line knockabout .
Youd think with a bigger wing ( Cox Chipmunk wing ? ) theyed have to start being aerobatic . Obviously if you halved the battery set up & went for three minute flights , youd get a better loading .
Might be the better ' first step ' for full comp. performace. And give you a few figures to calc a ' real ' motor battery set up . Tho Id think low drag would reduce battery consumption -
so the notorious ' Dominoes ' suggests the plastic foam simplistic approach if performance is the priority .