1800 float bottom bulkheads (half bulkheads)
Posted: Sun Feb 19, 2012 11:56 am
First time float builders might want to note on page 3-44 (03/27/95)
section 20 Bottom Bulkheads:
"The 3 bottom bulkheads per float install ahead of the step so the
bottom of the V must be trimmed to a 5/8" opening for the keel, same as
the adjacent full bulkheads. The trimmed section will also need to be
extended upwards far enough to let water drain to the rear pump outs."
There is no mention of this anywhere that I can find.
Also refer to Wayne's post of 11/11/2002 "bulkhead cracks on 1800
floats". If you elect to install those doublers you might also want to
shorten the center stringer a bit to allow room for a larger drain hole.
With a 1/4" high drain there I am down to 5/16" edge distance on the
lower stringer rivet and that is an obvious place to crack I suspect.
The pic referred to in that post does not seem to be in the archives
anymore.
I also have some notes for the main gear bulkhead that I could post if
there is any interest in comments like this.
Ken
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section 20 Bottom Bulkheads:
"The 3 bottom bulkheads per float install ahead of the step so the
bottom of the V must be trimmed to a 5/8" opening for the keel, same as
the adjacent full bulkheads. The trimmed section will also need to be
extended upwards far enough to let water drain to the rear pump outs."
There is no mention of this anywhere that I can find.
Also refer to Wayne's post of 11/11/2002 "bulkhead cracks on 1800
floats". If you elect to install those doublers you might also want to
shorten the center stringer a bit to allow room for a larger drain hole.
With a 1/4" high drain there I am down to 5/16" edge distance on the
lower stringer rivet and that is an obvious place to crack I suspect.
The pic referred to in that post does not seem to be in the archives
anymore.
I also have some notes for the main gear bulkhead that I could post if
there is any interest in comments like this.
Ken
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