Airmat Materials Investigation of One-Place Inflatoplane GA-468.
GOODYEAR AEROSPACE CORP AKRON OH
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Airmat cockpit, wing, and empennage surface materials were given rotoflex, creasing, permeability, tear strength, cyclic loading, and cylinder elongation tests. Wing surface materials and drop threads were given quick break, dead load-time and panel burst tests. Most specimens were fabricated of Airmat vehicle materials more than 4 years old. The ability of the material to withstand mechanical abuse was substantiated dead load and panel burst tests indicated strength degradation with age and use. The Inflatoplane service life is calculated as being a minimum of 12,000 hr. Hydrogen permeability increased after application of a cyclic load of 10,000 cycles by a factor of 3 to 5 for the cockpit and empennage by a factor of 10 for the wing material it did not increase noticeably thereafter up to 100,000 cycle. Rotoflexing and creasing reduced material strength by 2 to 5 for the cockpit and empennage and 7 for the wing.
- Patrol and Reconnaissance Aircraft