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FYI the following are the dynamic pressures at
various airspeeds. I presume they are at standard atmospere.
100 knots 0.2351 psi
150
" 0.5290 "
200
" 0.9405
"
These are derived from a formula q=0.5rho*v^2
where rho = 0.002377,
v =ft/sec, q=#sq ft If you look
carefully I think it is in the archives.
If anyone wants the full table I could scan it and
send it to the list.
I tested my tanks for leaks with air at 1.5
psi 40" water and whilst the pressure did vary with the atmospheric,
making me think I had a leak at one point, I saw no deformation of the skins at
all. I would worry if mouth pressure could distort my skins although I am
not sure I know what I would be worrying about.
Ian B. Crowe
LNC 2
C-FKRO
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