Brodhead Pietenpol Association

Original Posted By: "Craig R. Lawler"
Steve Eldredge wrote:> I don't understand what you mean by no leading edge. It would be an> aweful problem if you didn't have a le on a wing. Do you mean there is> no sheeting? Do you have a 1" spar or a 3/4" spar? As far as tearing> apart the wing, it sounds like a great deal of work. I know that it> would be less work in my case to build a whole new wing if I were going> to build new ribs anyway. With the plywood doublers already in place> for fittings and such I don't see how you would be able to slide the> ribs off the wing. I saved about 16 lbs by routing the spars. Mine are> 1" Douglas fir.For clairfication - this project is over 30 years in the making. Startedby an EAA Chapter and worked on by at least 2 owners since. The projecthas never been completed. As for the wings - there are ribs mounted onspars period. The spars are full 1" per the plans (obtained from DonPietenpol) the are several broken ribs (hangar rash - moves etc.) Thespruce is high quality stamped as certified. The wood is bare - nevervarnished or sealed in any way. Spars are straight and true though. Iguess the gussets on the forward part of the ribs is OK and the brokenribs can be repaired. Is it possible to route the spars between the ribsor should I forget it?There is no sheeting shown on the plans from the front spar to the LEalthough I understand many builders sheet the upper area. What is usedfor sheeting 1/16" ply?As mentioned previously there is a 65HP Franklin hanging on the fuselagewhich is 2" shorter than the short fuselage on the plan. Any problemshere?Suggestions and comments welcomed.* E-Mail glhuber(at)mail.wiscnet.net Procurement Services DIvision *________________________________________________________________________________

Original Posted By: grhans(at)freenet.edmonton.ab.ca
Gerard L. Huber wrote: Steve Eldredge wrote: > I don't understand what you mean by no leading edge. It would be an > aweful problem if you didn't have a le on a wing. Do you mean there is > no sheeting? Do you have a 1" spar or a 3/4" spar? As far as tearing > apart the wing, it sounds like a great deal of work. I know that it > would be less work in my case to build a whole new wing if I were going > to build new ribs anyway. With the plywood doublers already in place > for fittings and such I don't see how you would be able to slide the > ribs off the wing. I saved about 16 lbs by routing the spars. Mine are > 1" Douglas fir. For clairfication - this project is over 30 years in the making. Started by an EAA Chapter and worked on by at least 2 owners since. The project has never been completed. As for the wings - there are ribs mounted on spars period. The spars are full 1" per the plans (obtained from Don Pietenpol) the are several broken ribs (hangar rash - moves etc.) The spruce is high quality stamped as certified. The wood is bare - never varnished or sealed in any way. Spars are straight and true though. I guess the gussets on the forward part of the ribs is OK and the broken ribs can be repaired. Is it possible to route the spars between the ribs or should I forget it?If it is a simple matter to get the ribs off without breaking them up Iwould try it. It is easier for me to route out 16 pounds of wood thanto loose it from my gut. even though I need to. There is no sheeting shown on the plans from the front spar to the LE although I understand many builders sheet the upper area. What is used for sheeting 1/16" ply?If you have the '33 plans look at the rib drawing. It shows itthere,but using something like 9 ply cardboard. I used 1/16 ply withgreat results. Aluminum also will work, but hey this *is* a woodairplane. As mentioned previously there is a 65HP Franklin hanging on the fuselage which is 2" shorter than the short fuselage on the plan. Any problems here?Build it up and find out. you will probably be ok since the wing canmove a few inches to accomidate varying CG's. Fail thatLead-In-The-Nose works too. Stevee________________________________________________________________________________