Constant Altitude Performance

This requirement for an airframe boost pump is specified in terms of a required fuel flow range at a given temperature and at a constant altitude. The minimum required pressure rise is also specified. The submergence of the inlet of the pump (for bottom mount types) or the snorkel inlet (for snorkel inlet types) is also defined and is measured in the range of a few inches. For altitude pressures lower than the initial fuel vapor pressure, the fuel is weathered to achieve equilibrium with the altitude pressure. The fuel is recirculated in this test. Figure 6 presents the constant altitude performance of the fuel boost pump depicted in Figures 3 and 4.

Survival Treasure

Survival Treasure

This is a collection of 3 guides all about survival. Within this collection you find the following titles: Outdoor Survival Skills, Survival Basics and The Wilderness Survival Guide.

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