I5
Combustion chamber shielding for GE J-85 powered Funny Cars, refer to “Driver Location” below. Engine make, type and model must be ANDRA accepted. Current acceptable engines are: Westinghouse J-34 and its variants, Pratt & Whitney J-60 (JT-12) and its variants, General Electric J85-5 (CJ-610) and its variants and Rolls Royce Viper 202, 522, 622 and their variants. Any other engine types must be ANDRA accepted prior to running. Engine, chassis and systems, inspection and service records should be kept and may be required by ANDRA officials at any time.
The use of hose clamps or tie wraps to secure hoses to overflow tanks is prohibited. Afterburner Tail Pipe Stainless steel or Inconel is recommended for afterburner tailpipes fitted to jet powered vehicles. A thickness of 0.060” is also recommended to help prevent heat and vibration cracking. For longitudinal butt welds, the seams must be on the bottom. Overlap seam welds are acceptable and should be at the bottom where possible. Placement will be at the discretion of the technical inspector or on providing a written report from a civil or military aviation authority. Containment straps are recommended, if fitted a minimum of 2 x 4” width and 0.060” thickness steel straps around the parallel section of tailpipe adjacent to the divergent and convergent sections of tailpipe. Fuel Spray Rings Fuel spray rings and flame holder mountings must be securely fitted to help prevent excessive movement from heat and vibration, sliding mount joints are permissible and recommended to help prevent cracking. An afterburner spray ring fuel supply hose must be of a steel screw-on type fitting, no aluminium fittings or use of screw type hose clamps is permitted. A dump valve on an afterburner spray ring manifold is mandatory, the valve is to be actuated in conjunction with the primary chute lever and may be electrically operated (to prevent post shutoff tailpipe fires and smoke). The use of a turbine compressor air bleed system, to purge afterburner fuel ring during shutdown, is recommended. Air Intake Screens All air intakes must be totally and securely screened. (Mesh of 1/8-inch minimum, 3/8-inch maximum or equivalent). Such screening must be securely attached to the engine. The use of “Birdcage” type screens is acceptable provided they meet the above mesh requirements and are supported to prevent excessive movement or drooping. Any securing screws, bolts and nuts must be of the “self-locking” type or be securely lock wired to prevent ingestion into the engine.
2
CLASS REGS
Overflow Catch Can Fuel-overflow catch tanks must be of a sufficient capacity to accommodate excess fuel upon shutdown and adequate tank venting is required, 4 litres minimum capacity required on all vehicles. A single tank of greater capacity is permitted for multiple engine vehicles, minimum of 4 litres per engine.