1955 Whirlwind Stringer Repair

by Robert
(Durham, NC)

I have taken ownership of a 1955 Whirlwind.

My father who has passed was the original owner.

One of the stringers is cracked across it by the back bench.

It's one to the side of the keel.

My thought was to place 2 sections of wood along each side of the crack and use 3/8" stainless thru bolts to secure it.

QUES: what size boards should I use, how long past the crack should it extend?

Do I need to use mahagony or is a another wood type ok to use?

A local wood shop has Brazilian Mahogony?

Would that be suitable?

Comments for 1955 Whirlwind Stringer Repair

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Jul 26, 2015
Sistering
by: Anonymous

Sounds like a plan.

Similar to sistering a frame.

Probably OK to use on an isolated crack.

I should make the 'splint' of an equal size and strength to the original and would extend it well beyond damaged area.

Keep an eye on it to make sure that it isn't putting extra stresses on the adjacent fastenings.

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