Turbo-Jett noise levels
Hi,
A clubmate is entering in the Rare Bare class at this years national air races (Australia).
The class is restricted to Thunder Tiger ARF models (Rare Bare, Sea Fury and September Fury) and allows only .91 2-strokes from OS, TT, Magnum or Super Tigre with a minumum prop diameter of 13" and max pitch of 12"
There is also a noise limitation of 98dB when measured from 3 metres (10') over grass 1 metre (3.3') above the ground and up wind.
The rules also stipulate that tuned pipes are not allowed but there must be an expansion type muffler that is fully enclosed in the cowl.
Will the Turbo-Jett meet these criteria?