Originally Posted by
Dora-9
Pipercameron,
Note that with your drawing the vent slot/fairing/pipe arrangement was a retrofit item introduced around 1953; so that all the original Chipmunks that came to Australian aero clubs did not have this (the RAF understandably didn't bother to install this on aircraft already ear-marked for disposal). This installation was intended to pressurize the tanks to ensure even feeding. Certainly the RVAC (at least) modified their Chipmunks without the vent to have a L/R/OFF selector.
That's interesting.. I was wondering what all that was for. Thanks for the info!
