The place for technical discussions about GA and flying.
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By Sooty25
anybody got any idea how long the process takes when applying for a new airframe/engine/propeller combination?
By Nomad63
I applied for a new noise certificate due airframe change 2 years ago and it took about a week to come back, no idea if that's a representative timescale

Yep, a new noise certificate because I shortened my wings by 3' about needless paperwork, keeps the office drones in work I suppose