Friday, July 16, 2010
Most noseribs go in the exact middle of the space between the main ribs. Some are off-center to accommodate other hardware in the way - like the jury strut.
Does this noserib go inboard or outboard of the jury strut? According to the reproduction of the original parts manual, showing the built-up ribs, it goes inboard.
If I look at the post-WWII BC-12D owner's manual with the stamped ribs, it goes outboard of the jury strut, though snugged up to it.
That's not really an authoritative source, though, given this is a pre-WWII plane with the built-up ribs. On the other hand, take a look at that first picture, with the patterns of where the ribs used to be in the varnish. Those are the original spars from the factory, with a stamped serial number plate nailed into one spar. So the rib was actually outboard when it came out of the factory - despite the parts manual's indication - and the post-war planes kept that rib placement and made it official.
Do I restore to the documentation, or to the original condition?