Turbine Exhaust Restraints
7/22/2025
EFFECTIVE IMMEDIATELY:
The following new rule will be in place for all future OTTPA events. This is in addition to the rules already in place in the 2025 OTTPA Rule Book.
New Rule –
21.3.13 & 22.4.20 – All turbine engine exhaust stacks must have a minimum of 3 restraints distributed equally around the stack. The restraints must be attached to the stack and to a solid mounting point such as the steel hot section shield or tractor frame rails. Restraints must contain the exhaust stack to the vehicle if the stack was to come loose from the engine.