Search found 7 matches
- Sat Dec 07, 2019 7:52 pm
- Forum: Pietenpol Builders Forum
- Topic: 4130 vs 1020
- Replies: 10
- Views: 9603
Re: 4130 vs 1020
4130 tubing is typically sold in the normalized state (4130N). For thicknesses of 1/8" (.125") or less, when welded (using either Oxy/Acetylene or TIG) it will return to the normalized state, provided it is allowed to cool slowly, in still air. Colder ambient air, or even a slight breeze w...
- Sat Sep 28, 2019 10:54 pm
- Forum: Pietenpol Builders Forum
- Topic: 4130 vs 1020
- Replies: 10
- Views: 9603
Re: 4130 vs 1020
Non-aircraft material? 1020/1025 steel tubing actually has a good deal of history in aircraft structures, such as J3 Cub and Aeronca Champ/Chief. There's nothing wrong with using 1020 steel where called for in the plans. Finding 1020 steel tubing in the specific sizes called for, in small quantities...
- Tue Jan 22, 2019 4:31 pm
- Forum: Pietenpol Builders Forum
- Topic: Old Information for New Pietenpol Pilots
- Replies: 9
- Views: 7611
Re: Old Information for New Pietenpol Pilots
In case anyone wants them, here are PDF versions of those three documents.
Naturally, the weight and balance spreadsheet loses all of it's functionality, when converted to a PDF document.
Bill C.
Naturally, the weight and balance spreadsheet loses all of it's functionality, when converted to a PDF document.
Bill C.
- Sun Nov 04, 2018 9:38 pm
- Forum: Pietenpol Builders Forum
- Topic: Waterjetting
- Replies: 13
- Views: 9605
Re: Waterjetting
Tom, Bending sheet metal with the grain isn't actually a "NO NO", it just has to be approached differently. When bending with the grain, a larger bend radius must be used than when bending transverse to the grain. However, for optimum strength, and the sharpest possible bend radius, bends ...
- Sun Jun 24, 2018 10:51 am
- Forum: Pietenpol Builders Forum
- Topic: Wing Finishing Advice
- Replies: 10
- Views: 7207
Re: Wing Finishing Advice
1/16" Aircraft Ply for the leading edge. I didn't understand your original comment about the need to "put flax where the rib meets the spar". Now that I see your photo I understand what you were referring to ... but I also don't understand why it would be needed. This is not a structu...
- Mon Jan 29, 2018 9:18 am
- Forum: Pietenpol Builders Forum
- Topic: Cabane Strut Fittings
- Replies: 2
- Views: 2903
Re: Cabane Strut Fittings
Dan, No, you're not a fool. The detail for the fittings shown in Vi Kapler's drawing are the same as shown in the original plans, and are equally as strong as the versions made with two U-brackets ***provided the welds are done properly***. Many builders opt for the two U-bracket method as a "b...
- Mon Apr 24, 2017 8:04 pm
- Forum: Pietenpol Builders Forum
- Topic: Control cable slack
- Replies: 2
- Views: 3128
Re: Control cable slack
George, There aren`t any control deflections shown in the plans. Practically, they will be limited by the actual movement that the pilot can physically move the stick fore and aft. I realize that doesn't really answer your question, but it does establish the maximum possible physical movement limits...