Saturday, August 29, 2020

Drilled the F-902 bulkheads for the second time - 3 hours

With the recent Vans shipment, I ordered new F-902 bulkheads, since drilling them to the F-7101 gear attach web can be quite tricky.

I already have the spacers cut for this area out of 0.032" but the spacers do come quite close and touch the longerons & stiffeners. So I decided to mark them and give them a notch for clearance to help ensure good fit.

UPDATE: Do not follow the installation picture below. It is very important that you use a piece of 0.040" scrap between the F-719 longeron and the F-770 side skin. Later when I went to install the floor skin, I noticed that the holes to the gear attach web are slightly offset. 


As you can see the fit is very close and I fear that it may prevent the gear web from sitting flush against the angles.

With a bit of work on the 3M wheel the notches are easily made.

I was then ready to begin drilling the holes to the F-7101 gear attach web.