What are the requirements for a fuel system in aviation?
[Figure 1] Each fuel system must be arranged so that no fuel pump can draw fuel from more than one tank at a time. There must also be a means to prevent the introduction of air into the system. Each fuel system for a turbine engine powered airplane must meet applicable fuel venting requirements.
How many categories of aircraft fuel tanks are there?
Aircraft typically use three types of fuel tanks: integral, rigid removable, and bladder. Integral tanks are areas inside the aircraft structure that have been sealed to allow fuel storage. An example of this type is the “wet wing” commonly used in larger aircraft.
How are the various types of fuel tanks chosen in an aircraft?
There are various basic types of fuel tanks designed for use in aircraft. The specific type chosen when designing the aircraft is a result of the available technology at the time the aircraft was designed, the size and shape of the tank area, and the types of operations for which the aircraft is designed.
What is the current FAA rule on fuel tank inerting?
Within two years, all new aircraft must include technology designed to significantly reduce the risk of center fuel tank fires as part of a final rule announced Wednesday by U.S. Transportation Secretary Mary E.
What are the two types of fuel systems on an aircraft?
Various aircraft fuel components are necessary for loading and delivering fuel to the propulsion system. However, discussing the aircraft fuel system components, they unite to provide two fuel systems. That is the gravity feed system and fuel pump system.
What are the fuel flow requirements for gravity fuel pump and turbine systems?
The fuel flow rate for gravity systems (main and reserve supply) must be 150 percent of the takeoff fuel consumption of the engine.
What does SFAR 88 stand for?
Special Federal Aviation Regulation 88
The acronym stands for Special Federal Aviation Regulation 88.
Who does SFAR 88 apply to?
This SFAR applies to the holders of type certificates, and supplemental type certificates that may affect the airplane fuel tank system, for turbine-powered transport category airplanes, provided the type certificate was issued after January 1, 1958, and the airplane has either a maximum type certificated passenger …
Why are aircraft fuel tanks vented?
Each tank is vented (or pressurised) to allow air into the tank to take the place of burned fuel; otherwise, the tank would be in negative pressure which would result in engine fuel starvation. A vent also allows for changes in atmospheric pressure and temperature.
What are the expansion space requirements for an aircraft fuel tank?
Each fuel tank must have an expansion space of not less than 2 percent of the tank capacity. It must be impossible to fill the expansion space inadvertently with the airplane in the normal ground attitude.
What is the minimum fuel flow requirement for a pressure feed system?
(a) Each fuel system must provide at least 100 percent of the fuel flow required under each intended operating condition and maneuver.
What are the basic types of fuel tanks?
Types of Fuel Tanks
- Metal Fuel Tank. A metal fuel tank is a fuel container welded from stamped sheets of steel or aluminum.
- Plastic High-Density Polyethylene. Plastic high-density polyethylene (HDPE) fuel tanks are used in most modern automobiles.
- Integral Fuel Tank.
- Bladder Tank.
What is ALS Part 1?
The ALS Part 1 provides mandatory instructions and airworthiness limitations for the “safe-life” structure, i.e.: structure for which the damage tolerance concept is impractical.
Which aircraft types does SFAR 88 apply to?