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The VAF News - 1.15.2026. #6476. Block, Tube, Solder, Nosewheel, Cowl, FirstFlight, 14 Status

DeltaRomeo

doug reeves: unfluencer
Staff member
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I've posted this several times over the decades... lapping flats on the belleville washers also increases the bearing areas of the washers so that they aren't sharp edges. Particularly true on the upper end which bears on the bronze. I've never had to reset the breakout on mine in 1900 hours.
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Update: TParker and I had a private conversation about the idea of reducing the bulkhead spacing, to wit:
“Fortunately, that record also lists the high pitch, 33 degrees. Unfortunately, with this configuration of high pitch and blade design you will have interference if you reduce the bulkhead spacing. The 0.250" spacer is predicted to only have ~0.028" of clearance at nominal dimensions and high pitch, so I'd recommend an 0.063" washer as well as the spacer as the minimum.”
The attached pic illustrates the problem.
So I think it's back to plan A: Sand down the flange. Thanks again to all of you for sharing your insights.
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140088 is back in construction after a 9 year hiatus... All flying surfaces are done and engine is here. Now all I need to do is rob a bank to be able to activate SteinAir.
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OFF TOPIC:
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