Information on how wings fly: http://www.cfse.ch/site/topics-wings.htm

Links:

• http://www.gliders.dk/rg_15.htm
• http://www.worldofkrauss.com/foils/
• http://www.ae.illinois.edu/m-selig/ads/coord_database.html#R

Notes:

All the experienced modellers I’ve met, each time I mentioned heavy lift, would always come up with the RG-15 profile… must be something about it 🙂

profile RG15 A ?? 150~160mm cord, wingspan 1.5m
Ailerons of about 20% on all the lengths

The wings would be cut into a block of foam using a hot wire.

The wing will be reinforced by a carbon tube (8~10mm?)

A layer of grade 160 fibre glass and a thin layer of balsa is added around the foam core (sounds solid to me).  Covered with solar film, the wings will have a nice gloss finish. (Is it a sandwiched wing?)

This is a Rolf Girsberger RG 15A 2.5/13.0 air-foil

Rolf Girsberger RG 15A-1.8/11.0 air-foil

FX 62-K-153/20