Original Posted By: Ken Beanlands
Has anyone used ribs sawn from plywood? There is a lot lessconstruction time, but a small weight penalty. If so, how do youwork out how much wood to leave when you carve out the inside ofthe plywood?Thanks,Mike Bell (NoPietYet)Columbia, SC________________________________________________________________________________
Pietenpol-List: Rib Construction Methods
Pietenpol-List: Re: Rib Construction Methods
Original Posted By: Michael Brusilow
I did. Granted, they were for my Christavia, not a Piet. I used 1/4"plywood without a capstrip. However, if I had my time back, I would haveused capstrips to keep the robs from bowing. The entire stack of 30 ribsweighed 11 lbs. Considering that the other ribs had to weigh something,it's not a great weight penalty compared to the time savings.As for routing, I just created lightening holes where they wouldn'tinterfere with the drag/antidrag wires. I did test them at one point byplacing 2 pieces of 2x10 across 2 ribs and then loading 320 lbs ofsandbags on the ribs. No problem.KenOn Thu, 13 May 1999, Mike Bell wrote:> > > Has anyone used ribs sawn from plywood? There is a lot less> construction time, but a small weight penalty. If so, how do you> work out how much wood to leave when you carve out the inside of> the plywood?> > Thanks,> > Mike Bell (NoPietYet)> Columbia, SC> > ________________________________________________________________________________
I did. Granted, they were for my Christavia, not a Piet. I used 1/4"plywood without a capstrip. However, if I had my time back, I would haveused capstrips to keep the robs from bowing. The entire stack of 30 ribsweighed 11 lbs. Considering that the other ribs had to weigh something,it's not a great weight penalty compared to the time savings.As for routing, I just created lightening holes where they wouldn'tinterfere with the drag/antidrag wires. I did test them at one point byplacing 2 pieces of 2x10 across 2 ribs and then loading 320 lbs ofsandbags on the ribs. No problem.KenOn Thu, 13 May 1999, Mike Bell wrote:> > > Has anyone used ribs sawn from plywood? There is a lot less> construction time, but a small weight penalty. If so, how do you> work out how much wood to leave when you carve out the inside of> the plywood?> > Thanks,> > Mike Bell (NoPietYet)> Columbia, SC> > ________________________________________________________________________________