Pretty sure we'd elicit a response from your good self on this one, Wide.
.....and you're right, a well-thought-out techy. answer from Lowtimer.
Chipmunks weren't originally fitted with G meters and my bet is that only a few civvy ones have them ('896?),even now.
It's true that "in the olden days" +6 -3 was the ballpark figure for a number of military training aircraft but the first aircraft I remember to be fitted with one as standard was the JP. A great deal therefore depended on your instructor,to show you the correct way to carry out a manoeuvre and also to experience what acceptable "G" felt like.
One must now treat the Chippie as the ageing lady she is, watching particularly throttle handling when inverted. Reducing the RPM when neg. G forces come into play will allow the engine to produce thrust a little longer, prevent the cylinder bores being washed with neat fuel when the oil pressure drops and will also prevent the engine from inadvertantly speeding up before oil pressure is reinstated.
Of course,the only real problem with neg. in a Chippie is the way it copiously chucks oil out of the breather, all over the under-fuselage of your beloved aeroplane !! Half an hour getting filthy wiping it all off for a few moments of indulgence......????
Why not keep your aeroplane in much better shape and get your negative G kicks in a Pitts ?
Rgds, Sleeve.
