N546RV
Well Known Member
OK, I'm beginning to reach the point where I believe the construction manual is flat-out wrong here, unless I'm missing something very obvious. I'm hoping someone can shed some light here.
Today I did all the prep work on the aft seat floors - match-drilling the stiffeners, drilling the rear seat hinge, deburring and dimpling everything, etc. Next up will be back riveting the stiffeners to the floors.
But here's what confuses me. The manual says:
The particular bit in question is that last bolded part, about not riveting the F-830-C stiffeners yet. Normally, with a directive like this, I'd expect to see that something else has to be riveted in assembly, or the part in question would end up blocking access later on. But I see no indication of that. The directive to rivet these stiffeners comes later on, when the floors are being installed permanently, and there are no indications of any sort of interference.
What's more, the steps for permanently installing the floors don't even make sense to me. Those steps have me cleco both of the seat floors in place, along with the aft baggage floor, and then blind rivet all those pieces to the understructure. Only then does it say to rivet these six stiffeners in place - but now I'll have to flush-rivet them and reach under the seat floor to buck them.
I just do not see any reason for this complication. Can some of you -8 builders maybe tell me what I'm missing here? It seems like there's no reason not to just go ahead and back rivet all the stiffeners at once.
Today I did all the prep work on the aft seat floors - match-drilling the stiffeners, drilling the rear seat hinge, deburring and dimpling everything, etc. Next up will be back riveting the stiffeners to the floors.
But here's what confuses me. The manual says:
Back rivet the F-830B-1, D-1, E-1, & F-1 Floor Stiffeners to the F-830-1 Left Seat Floor using the 3/32 flush riv- ets called out in ?Seat Floors?, DWG 77. (Only rivet the three F-830B-1 Floor Stiffeners that use 3/32 rivets, and only one of the rivets used to attach the F-830F-1 Floor Stiffener is 3/32.) NOTE: Do not rivet the F-830C-1 Floor Stiffeners at this time.
The particular bit in question is that last bolded part, about not riveting the F-830-C stiffeners yet. Normally, with a directive like this, I'd expect to see that something else has to be riveted in assembly, or the part in question would end up blocking access later on. But I see no indication of that. The directive to rivet these stiffeners comes later on, when the floors are being installed permanently, and there are no indications of any sort of interference.
What's more, the steps for permanently installing the floors don't even make sense to me. Those steps have me cleco both of the seat floors in place, along with the aft baggage floor, and then blind rivet all those pieces to the understructure. Only then does it say to rivet these six stiffeners in place - but now I'll have to flush-rivet them and reach under the seat floor to buck them.
I just do not see any reason for this complication. Can some of you -8 builders maybe tell me what I'm missing here? It seems like there's no reason not to just go ahead and back rivet all the stiffeners at once.