Starting up a 912 rotax,having worn a balaklava this morning as icy cold,I thought the engine sounded a bit throaty,Taxied to warm up area,seemed to warm engine up as normal,all ok.
Still not sure of change ,thought it was balaclava with earphones, thought I will do a circuit before leaving
Aerodrome,so took off ,just as I took off I heard a snap as I pulled my visor down.
I had broken my visor so I landed straight away,came back to Hanger found both side of engine exhausts
Had blown off muffler,has anyone come across this before as I am concerned that this has happened,
Even though it was so cold.I might have held throttle down while starting engine.