rwdfresno wrote:
Hello,
I noticed that you are drilling apart quite a bit of the fuselage and other pieces. I'd be interested in hearing about any concerns about realigning the disassembled parts. Will you be using/making fixtures to align the parts for reassembly? Any reason you opted to dissemble the fuselage for shipping rather than using a jig to transport? Just to be clear, not trying to second guess you, just curious to how those potential issues will be mitigated.
Ryan
We took a Grumman Goose completely apart a few years ago. When we made new skins using the old ones as patterns and then simply clecoed the parts back together, it was amazing to us how it drew itself back into alignment without a jig - the more clecos that were added, the tighter and more into alignment it became.
Even so, that's not something that can be counted on for new production, so we eventually designed (using SolidWorks CAD) and built a couple of whole fuselage jigs that picked up on all of the fixed reference points like the landing gear attach points, the wing attach points, and the horizontal stab/elevator and rudder attach points. Then we mapped out additional alignment reference points on the jig using a laser. The original Grumman "Erection and Maintenance" manual for the Goose (Report No. 1221) lists a tolerance of +/- 0.5 inch between the top of the vertical stabilizer and the wing tips as part of the final alignment check.
I love following the progress on this Beech 18 'cuz it has so much in common with the Goose. Keep up the good work - and keep posting progress reports!