Wood Flashcards
The reference species as a standard of tree wood is _______ _______
Sitka Spruce
Aircraft wood must be _____ dried
Kiln
The wood’s Specific Gravity must be Greater than ______
0.36
The slope of the grain must not be steeper than __ in ___
1 in 15
Must be ________ ___________ (Vertical Grain)
Quarter Sawed
What kind of cut is this?
Quarter Sawed
Grains of Laminated wood must run __________ to eachother
Parallel
The best kind of wood for Spars is __________ wood
Laminated
___________ is constructed from veneors that are hot bonded together
Plywood
Grains of Veneors on Plywood run at ____ degree angles to eachother
90
Wet Wood is susceptable to ______, this usually occurs at 20% moisture and up
Fungi
Splits often occur ________ ______ _________
along grain lines
Wood shrinkage is greatest in a ____________ direction
Longitudinal
______ __________ is usually due to improper fabrication/prolonged exposure to moisture
Bond failure
Acceptable Moisture is ___ - ___ %
8-16%
