RV-9A Nose Gear Access hole

I noted this access hole called out on an OP drawing for my 9A. I presume it's for putting the nose gear bolt or nut in place to hold the gear leg.

My firewall doesn't have this hole. Can anyone supply a location and diameter for it? Is it necessary?


Andy C.

Andy take a look at DWG 19. There should be all FW penetration points measurements.

KazooRV-9A said:

I noted this access hole called out on an OP drawing for my 9A. I presume it's for putting the nose gear bolt or nut in place to hold the gear leg.

My firewall doesn't have this hole. Can anyone supply a location and diameter for it? Is it necessary?


Andy C.

Click to expand...

This drawing calls for a FF 3/4 plug for that hole. Pretty sure you can assume it is a 3/4" hole which seems about right to clear a 1/2" socket inserted at an angle with some extra clearance for an imprecise hole location. Basically the hole needs to be big enough to to get a socket on the nut. How big will depend upon how precisely you can drill it relative to the nut location. Either way, it needs to be plugged when completed.

Thank you for the lead to DWG 19, it has tabulated locations for a number of firewall penetrations.
I'm good to go now!
A.