Brodhead Pietenpol Association

Original Posted By: mbell1(at)columbiaenergygroup.com
In comparing the "builders manual" from Don P., the'33 /'34 plans, and the '32 Flying and Glider manual,I came up with a couple more questions I hope some onecan help me with. First, in the Builders manual fromDon, he states in "note 10" that the wing splice shownin the plans is in the wrong orientation. He suggeststhat the splice be made according to FAA requirements.Which plans is he refering to, the original in the '32Flying and Glider manual or the '33/34 plans he sells? (Both show the spars differently). What is wrongwith the orientation and just what FAA guidance isbeing refered to?Second, In "note 21" he refers to a 2-1/2 inch castorwheel for use as the tail wheel. He refers to it as a"fixed position wheel". Now I always thought a fixedposition wheel would be fixed...ie can not turn leftor right. But a castor wheel could turn freely leftor right with either differential breaking or, ifenough wind is on the rudder, with the rudder. Whichis it? And has anyone tried it? In the pictures itlooks very clean and simple but if it is fixed, (can'tswivel), it doesn't seem that it would work all thatwell, especially at low speeds with the tail on theground.As always, any input will be greatly appreciated. Bill Hutson, S.D.IHA#7________________________________________________________________________________

Original Posted By: Ed0248(at)aol.com
Glue joints should be oriented so that they are stressed in shear, so for aspar that would be a vertical scarf joint. The drawing shows front to backorientation of the scarffed joint which when stressed up and down will bend thejoint and try to peel the two layers apart. A glued joint has lot lessstrength this way.Mike BellColumbia, SCMaiser(at)adena.byu.edu on 09/30/99 12:40:04 AMPlease respond to piet(at)byu.edu @ INTERNETcc:Subject: Pietenpol-List: Questions for the gang...In comparing the "builders manual" from Don P., the'33 /'34 plans, and the '32 Flying and Glider manual,I came up with a couple more questions I hope some onecan help me with. First, in the Builders manual fromDon, he states in "note 10" that the wing splice shownin the plans is in the wrong orientation. He suggeststhat the splice be made according to FAA requirements.Which plans is he refering to, the original in the '32Flying and Glider manual or the '33/34 plans he sells? (Both show the spars differently). What is wrongwith the orientation and just what FAA guidance isbeing refered to?Second, In "note 21" he refers to a 2-1/2 inch castorwheel for use as the tail wheel. He refers to it as a"fixed position wheel". Now I always thought a fixedposition wheel would be fixed...ie can not turn leftor right. But a castor wheel could turn freely leftor right with either differential breaking or, ifenough wind is on the rudder, with the rudder. Whichis it? And has anyone tried it? In the pictures itlooks very clean and simple but if it is fixed, (can'tswivel), it doesn't seem that it would work all thatwell, especially at low speeds with the tail on theground.As always, any input will be greatly appreciated.Bill Hutson, S.D.IHA#7________________________________________________________________________________

Original Posted By: Warren Shoun
Bill, about the castor tail wheel that is fixed, I had a Baby Great Lakesthat had a swivel tailwheel with a spring loaded pin and cable to thecockpit that would let you lock the tailwheel for takeoff and landing. Areally good Idea for that short coupled little aircraft. I don't know ifthat is what he means but it could be. The Piet wheel I use is a Scott2000. Sometimes I wish I had the 3000 but I'd use a wheel off a grocerycart if I had to.Copinfo(at)ix.Netcom.ComTim CunninghamDes Moines, Iowa (515) 237-1510>Second, In "note 21" he refers to a 2-1/2 inch castor>wheel for use as the tail wheel. He refers to it as a>"fixed position wheel". Now I always thought a fixed>position wheel would be fixed...ie can not turn left>or right. But a castor wheel could turn freely left>or right with either differential breaking or, if>enough wind is on the rudder, with the rudder. Which>is it? And has anyone tried it? In the pictures it>looks very clean and simple but if it is fixed, (can't>swivel), it doesn't seem that it would work all that>well, especially at low speeds with the tail on the>ground.>As always, any input will be greatly appreciated.>>>Bill Hutson, S.D.>IHA#7________________________________________________________________________________