The wings are all aluminum. The stabs are as well, though steel is an option if somebody wanted it. The Gen 1 Jennies have used both steel and aluminum. The aluminum, of course, keeps the price down for builders but also helps to keep that CG forward.
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
What are the horizontal, vert stabs, and wing spars made from (aluminum or wood)?
The wings are all aluminum. The stabs are as well, though steel is an option if somebody wanted it. The Gen 1 Jennies have used both steel and aluminum. The aluminum, of course, keeps the price down for builders but also helps to keep that CG forward.