Aircraft Fuel Tanks External Jettisonable
Ordtech manufactures external jettisonable fuel tanks for F-16, Mirage, F-4 aircraft. Conventional design (aluminium) but also composite tanks are manufactured for centerline and underwing carriage.
|Design Parameters: Loads
on external aircraft tanks arise from three main sources: Pressurization, Aerodynamic
Loads, Inertial Loads. Specially developed computer modelling tools were developed
to determine these loads for any pylon mounted strore, underwing or centerline and
for a variety of aircraft (F-16, Mirage, F-4) according to MIL-A-8591G.
Maximum Altitude 30000 ft
Maximum Velocity 630 KTAS (M 0.95)
Load Factor + 6.5 g to -2.5 g
Test Pressure leakage 2 bar
Test Pressure no failure 3.5 bar
Fuel Transfer Pressure 0.8 bar
Composite Fuel Tanks
Material: Conventional tanks are manufactured from aluminium alloy which presents certain disadvantages: high cost, corrosion, catastrophic failure upon impact, fatigue low resistance. To overcome these disadvantages another materiel was selected and successfully used: Pre-pregnated epoxy reinforced with carbon fibre enables lower tooling costs, complex shapes and rapid repair in case of damage. Mechanical properties include high specific stiffness and strength and high resistance to fatigue. Lightning protection: The effects of lightning strike are reduced by incorporating a layer of aluminium mesh / glass fibre. This also provides electromagnetic shielding.