Stearman build

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3 years 11 months ago #22406 by kevinross
Replied by kevinross on topic Stearman build
spar box now aligns with centre section
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The following user(s) said Thank You: 4Pedalsfly, Phil Ford, Brian

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3 years 11 months ago #22408 by Phil Ford
Replied by Phil Ford on topic Stearman build
Finally getting progress underway.

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3 years 11 months ago #22447 by kevinross
Replied by kevinross on topic Stearman build
Small diversion as the rudder hinging has been bugging me. The design uses Robart H/D pin hinges which are fine but they would protrude almost 1/2 their length.

So reworked using paxolin stub hinges and removable wire pin
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3 years 11 months ago #22449 by JRI
Replied by JRI on topic Stearman build
Hi Kevin, how thick is the paxolin plate, what diameter is the hinge (I assume it is hollow brass) and does it need lubricating?

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3 years 11 months ago - 3 years 11 months ago #22450 by kevinross
Replied by kevinross on topic Stearman build

JRI wrote: Hi Kevin, how thick is the paxolin plate, what diameter is the hinge (I assume it is hollow brass) and does it need lubricating?

could

the pax plate is approx 1/8. with 1.7mm holes for 16swg piano wire. The brass tube is a sliding fit at approx 1.9mm bore. but you've just stirred my ageing brain. I was going to fix the wire to the rudder and allow the wire to turn in the paxolin. (then if wear occurs i could bush the paxolin Perhaps i could bend the wire 90deg and locate in the rudder sternpost and grease the wire to turn in the brass tube
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3 years 11 months ago #22451 by MikeSeale
Replied by MikeSeale on topic Stearman build

kevinross wrote: the pax plate is approx 1/8. with 1.7mm holes for 16swg piano wire.

Youve got to love this metric world we live in

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