HELICOPTERS
(See also Aviation)
discussion: g93 3/8 12-14
hummingbirds compared with: g87 10/8 16-17
personal: g92 10/8 28
pressure gauge for rotor blades: g86 11/22 25
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HELICOPTERS
(See also Aviation)
discussion: g93 3/8 12-14
hummingbirds compared with: g87 10/8 16-17
personal: g92 10/8 28
pressure gauge for rotor blades: g86 11/22 25