You cant increase your speed by 20%...but you CAN DECREASE your useful load
by about 12% (if I have my numbers right). Fir is a little heavier than
Spruce.

I just finished a new battery box for my Fly Baby. Actually TWO battery
boxes, after the first one (made of oak) got laughed out of my EAA chapter.

(Hey, I do a bit of non-aviation carpentry. I *love* working with oak!)

FWIW, the poplar one weighed 1.25 pounds. The nearly-identical oak one
weighed a half-pound more... a 40% weight penalty.

Ron Wanttaja
++++++++++++++++++++++++++++++

SO?????

Won't your Fly Baby carry a half-pound?
If not, fly barefoot and save 300% or more. g


Barnyard BOb --
If flying is the most fun you can have with your clothes on...
How much fun can flying naked be?