AIRCRAFT FUEL TANK DESIGNS
A fuel tank for the aircraft is the storage media for storing flammable fuel, needed for aircraft operation.
Generally, the fuel system of the aircraft shall have following basic features:
- The fuel system must contain a tank for storing a given quantity of fuel.
- It must avoid leakage and limit evaporative emissions.
- Easiest connection with engine and proper feeding technique to engines.
- Provide filling of the fuel in tanks in a secure way.
- Fuel system must have a system for measuring the remaining or filled fuel quantity in correct manner.
- Suitability for pressure /manual filling.
- All tanks vent to atmosphere, through a vent surge tank at each wing tip or another method.
- Ease for controlling the engine fuel control system.
Type of Fuel Tanks in aircraft:
1. Integral Tank: Fuel are stored in inside sealed structural areas. Like Wings. Wing shaving storing fuel system are called Wet Wings.
2. Bladder or Fuel cell: Fuel is stored inside a rubber cell or bladder which is located at a suitable compartment.
3. Rigid Tank: Fuel is stored inside a rigid cell like metal tank which is located at a suitable compartment inside aircraft.