Verrrrryyyyyy Interrreessstttttinnnng!
Ernest.
One thing you will want to place close
attention to – while the 0.02 stainless will doubtless handle the heat –
those large flat panels are going to be severely test by the rotary’s powerful
exhaust pulse.
I can’t tell for sure , but there
does not appear to be any interconnection between the opposing sides of those
wide expanses of sheet metal or is this just the SS covering and will not see
anything other than heat?
In any case, congratulations on getting
your muffling experiment to this point – I know you will do plenty of
engine runs before any flight – so if there are any design changes
required – they WILL show up {:>)
Actually the fabrication works looks fine.
Ed
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Ernest Christley
Sent: Wednesday, May 26, 2010 3:30
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Builder
displays mediocre sheet metal skills
I've finally completed the muffler. The final
step was enclosing it all in a .020 stainless shield.
I'll divert some intake air through it in an attempt to push as much heat from
under the cowl as quickly as possible.
The final exit is 1.5". Restrictive, yes, but I'm counting on it for
significant noise reduction.
The cardboard/pink foam construct just above the muffler is the nascent form
for the intake air filter box.
The 3/8" aluminum tube running along the bottom front of the engine is the
emergency alternate fuel supply. It ends in a piece of fuel line that
connects to the bottom of the BMW throttle body.