---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Mon 01/18/10: 14 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:40 AM - Re: Cool propeller shapes- how to make brass tipping (helspersew@aol.com) 2. 05:49 AM - Re: New to site (A&PBuggy) 3. 07:12 AM - Re: Cool propeller shapes- how to make brass tipping (Steve Ruse) 4. 07:13 AM - Re: Cool propeller shapes- how to make brass tipping (Steve Ruse) 5. 08:01 AM - Re: Cool propeller shapes- how to make brass tipping (Owen Davies) 6. 08:25 AM - Re: Cool propeller shapes- how to make brass tipping (Gary Boothe) 7. 11:23 AM - aileron cables (Douwe Blumberg) 8. 12:44 PM - Re: aileron cables (Jack Phillips) 9. 12:44 PM - Cool propeller shapes- how to make brass tipping (santiago morete) 10. 12:53 PM - Re: aileron cables (Gene Rambo) 11. 03:24 PM - Re: aileron cables (airlion) 12. 03:45 PM - Re: aileron cables (Gary Boothe) 13. 03:48 PM - Re: aileron cables (Jack Phillips) 14. 05:30 PM - Re: aileron cables (Jack) ________________________________ Message 1 _____________________________________ Time: 04:40:08 AM PST US Subject: Re: Pietenpol-List: Cool propeller shapes- how to make brass tipping From: helspersew@aol.com Santiago, As you know I have a prop that is very curvy in all directions. The idea that I came up with I think will work but is very complicated. Make a box , open at the top, about the length of 1/2 the propeller. fill with wet co ncrete (or plaster) and then push the leading edge down into the wet mixtu re (protected by polyethylene sheet) and let dry. After curing remove prop and then pre-cut brass. Push and form brass down into cured concrete mold to take on the shape of the prop. Complicated but I may try it at some po int. With all the many thousands of these props out there, it must be easier th an all this. Dan Helsper Poplar Grove, IL. ________________________________ Message 2 _____________________________________ Time: 05:49:20 AM PST US Subject: Pietenpol-List: Re: New to site From: "A&PBuggy" I know Dave well, He gave me the plans I have. I have not seen his finished plane, might have to take a ride and check it out!! -------- never enough hours in the day. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=282052#282052 ________________________________ Message 3 _____________________________________ Time: 07:12:11 AM PST US From: Steve Ruse Subject: Re: Pietenpol-List: Cool propeller shapes- how to make brass tipping Dan, I found this via google, it might be of a little help. Might be worth trying to find Jesse Sims, he might give you some tips: http://www.airspacemag.com/how-things-work/good_wood.html?c=y&page=5 The master carvers move perfectly balanced props on to have the leading edge tipping applied: stainless steel and brass work that conforms to the twisting curve of the leading edge so closely and finely as to be barely palpable. Jesse Sims, who fabricates and fastens the sheet metal tipping, adds as much as 12 ounces of brass or stainless steel sheet metal plus the weight of as many as a hundred screws and rivets. He makes the sheets into trough-shaped pieces that wrap the edge for an inch and a half, then he clamps the metal onto the prop, adjusting a bungee cord so that it doesn?t cover the holes he had earlier drilled for the screws and rivets that fasten the metal to the wood. Using a torch and solder, he drips molten lead into the bugled depressions in the edge, which he will then grind and polish until he achieves a fine sheen. ?The paint booth boys can change the balance with an extra coat of paint here and there, but these props have to be within a couple grams of perfect when I?m done,? Sims says. Quoting helspersew@aol.com: > > > Santiago, > > As you know I have a prop that is very curvy in all directions. The > idea that I came up with I think will work but is very complicated. > Make a box, open at the top, about the length of 1/2 the propeller. > fill with wet concrete (or plaster) and then push the leading edge > down into the wet mixture (protected by polyethylene sheet) and let > dry. After curing remove prop and then pre-cut brass. Push and form > brass down into cured concrete mold to take on the shape of the > prop. Complicated but I may try it at some point. > > With all the many thousands of these props out there, it must be > easier than all this. > > Dan Helsper > Poplar Grove, IL. > > ________________________________ Message 4 _____________________________________ Time: 07:13:20 AM PST US From: Steve Ruse Subject: Re: Pietenpol-List: Cool propeller shapes- how to make brass tipping Dan, A guy named Mike Redpath owns a small propeller shop at Paradise Airport south of Oklahoma City. I've seen some antique propellers with metal leading edges that he made and they looked good. The last one I saw was a big prop that cost over $2k, he was sending it to someone to hang on their wall. He'd probably be willing to give you a brief rundown of his process over the phone. Just share it with us when you get it! Mike Redpath - 405-414-1072 Steve Ruse Norman, OK Quoting helspersew@aol.com: > Santiago, > > As you know I have a prop that is very curvy in all directions. The > idea that I came up with I think will work but is very complicated. > Make a box, open at the top, about the length of 1/2 the propeller. > fill with wet concrete (or plaster) and then push the leading edge > down into the wet mixture (protected by polyethylene sheet) and let > dry. After curing remove prop and then pre-cut brass. Push and form > brass down into cured concrete mold to take on the shape of the > prop. Complicated but I may try it at some point. > > With all the many thousands of these props out there, it must be > easier than all this. > > Dan Helsper > Poplar Grove, IL. > > ________________________________ Message 5 _____________________________________ Time: 08:01:58 AM PST US From: Owen Davies Subject: Re: Pietenpol-List: Cool propeller shapes- how to make brass tipping On 1/18/2010 7:26 AM, helspersew@aol.com wrote: > As you know I have a prop that is very curvy in all directions. The > idea that I came up with I think will work but is very complicated. > Make a box, open at the top, about the length of 1/2 the propeller. > fill with wet concrete (or plaster) and then push the leading edge > down into the wet mixture (protected by polyethylene sheet) and let > dry. After curing remove prop and then pre-cut brass. Push and form > brass down into cured concrete mold to take on the shape of the prop. > Complicated but I may try it at some point. > Sounds workable, but I wonder what kind of finish you will get off a concrete mold. Is there anything that will smooth out the concrete so you won't have to cope with massive irregularities from the sand, etc? Owen ________________________________ Message 6 _____________________________________ Time: 08:25:19 AM PST US From: "Gary Boothe" Subject: RE: Pietenpol-List: Cool propeller shapes- how to make brass tipping Casting plaster would be the best to use.no aggregate. Still not sure if it would scratch copper or brass, but definitely worth a try. Gary Boothe From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Owen Davies Sent: Monday, January 18, 2010 8:02 AM Subject: Re: Pietenpol-List: Cool propeller shapes- how to make brass tipping On 1/18/2010 7:26 AM, helspersew@aol.com wrote: As you know I have a prop that is very curvy in all directions. The idea that I came up with I think will work but is very complicated. Make a box, open at the top, about the length of 1/2 the propeller. fill with wet concrete (or plaster) and then push the leading edge down into the wet mixture (protected by polyethylene sheet) and let dry. After curing remove prop and then pre-cut brass. Push and form brass down into cured concrete mold to take on the shape of the prop. Complicated but I may try it at some point. Sounds workable, but I wonder what kind of finish you will get off a concrete mold. Is there anything that will smooth out the concrete so you won't have to cope with massive irregularities from the sand, etc? Owen ________________________________ Message 7 _____________________________________ Time: 11:23:23 AM PST US From: Douwe Blumberg Subject: Pietenpol-List: aileron cables Where my aileron cables cross in front of the stick, they rub a little. Did you guys offset them somehow or wrap one with something to protect them? Douwe ________________________________ Message 8 _____________________________________ Time: 12:44:01 PM PST US From: "Jack Phillips" Subject: RE: Pietenpol-List: aileron cables I had the same problem Douwe. Congratulations! This just shows that your aileron horns are square with the torque tube (if they are square, the cables can't help but hit each other). Problem was solved by judicious application of a hammer to one side of the aileron horn on the torque tube. Just bend one of the horns (or both, but in opposite directions) enough to give some clearance between the cables. Depending on your enthusiasm with the hammer, you might have to enlarge the holes where they pass through the plywood under the instrument panel to maintain clearance. Jack Phillips NX899JP Rakeigh, NC -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe Blumberg Sent: Monday, January 18, 2010 2:20 PM Subject: Pietenpol-List: aileron cables Where my aileron cables cross in front of the stick, they rub a little. Did you guys offset them somehow or wrap one with something to protect them? Douwe ________________________________ Message 9 _____________________________________ Time: 12:44:03 PM PST US From: santiago morete Subject: Pietenpol-List: Cool propeller shapes- how to make brass tipping Dan, - Maybe-the easiest way is as shown in the photos, but if you don't like ho w that looks, I think you can make those "ears" close enough to each other and braze the gaps. The brazing will be invisible after sanding and polishi ng.- I made a magneto switch using a brass sheet, cutting, forming and brazing a nd is not really hard to form.-- Saludos - Santiago=0A=0A=0A Yahoo! Cocina=0A=0AEncontra las mejores recetas con Yahoo! Cocina.=0A=0A=0Ahttp://ar.mujer.yahoo.com/cocina/ ________________________________ Message 10 ____________________________________ Time: 12:53:32 PM PST US From: "Gene Rambo" Subject: Re: Pietenpol-List: aileron cables I'd just bend one of the tabs a little bit so they miss. Gene do not archive ----- Original Message ----- From: Douwe Blumberg To: pietenpolgroup Sent: Monday, January 18, 2010 2:20 PM Subject: Pietenpol-List: aileron cables > Where my aileron cables cross in front of the stick, they rub a little. Did you guys offset them somehow or wrap one with something to protect them? Douwe http://www.matronics.com/Navigator?Pietenpol-List http://www.matronics.com/contribution ________________________________ Message 11 ____________________________________ Time: 03:24:57 PM PST US From: airlion Subject: Re: Pietenpol-List: aileron cables Jack, I just did that fix for my aileron cables as we speak and got good clearance. I just had my inspection last friday and passed the first go around. I can now fly when I get my nerve up. Cheers, Gardiner Mason ----- Original Message ---- From: Jack Phillips Sent: Mon, January 18, 2010 3:40:49 PM Subject: RE: Pietenpol-List: aileron cables I had the same problem Douwe. Congratulations! This just shows that your aileron horns are square with the torque tube (if they are square, the cables can't help but hit each other). Problem was solved by judicious application of a hammer to one side of the aileron horn on the torque tube. Just bend one of the horns (or both, but in opposite directions) enough to give some clearance between the cables. Depending on your enthusiasm with the hammer, you might have to enlarge the holes where they pass through the plywood under the instrument panel to maintain clearance. Jack Phillips NX899JP Rakeigh, NC -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe Blumberg Sent: Monday, January 18, 2010 2:20 PM Subject: Pietenpol-List: aileron cables Where my aileron cables cross in front of the stick, they rub a little. Did you guys offset them somehow or wrap one with something to protect them? Douwe ________________________________ Message 12 ____________________________________ Time: 03:45:18 PM PST US From: "Gary Boothe" Subject: RE: Pietenpol-List: aileron cables Congratulations, Gardiner! I was told you have A LOT of nerve.... Gary Boothe Cool, CA Pietenpol WW Corvair Conversion Tail done, Fuselage on gear 16 ribs done Do not archive -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of airlion Sent: Monday, January 18, 2010 3:21 PM Subject: Re: Pietenpol-List: aileron cables Jack, I just did that fix for my aileron cables as we speak and got good clearance. I just had my inspection last friday and passed the first go around. I can now fly when I get my nerve up. Cheers, Gardiner Mason ----- Original Message ---- From: Jack Phillips Sent: Mon, January 18, 2010 3:40:49 PM Subject: RE: Pietenpol-List: aileron cables I had the same problem Douwe. Congratulations! This just shows that your aileron horns are square with the torque tube (if they are square, the cables can't help but hit each other). Problem was solved by judicious application of a hammer to one side of the aileron horn on the torque tube. Just bend one of the horns (or both, but in opposite directions) enough to give some clearance between the cables. Depending on your enthusiasm with the hammer, you might have to enlarge the holes where they pass through the plywood under the instrument panel to maintain clearance. Jack Phillips NX899JP Rakeigh, NC -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe Blumberg Sent: Monday, January 18, 2010 2:20 PM Subject: Pietenpol-List: aileron cables Where my aileron cables cross in front of the stick, they rub a little. Did you guys offset them somehow or wrap one with something to protect them? Douwe ________________________________ Message 13 ____________________________________ Time: 03:48:16 PM PST US From: "Jack Phillips" Subject: RE: Pietenpol-List: aileron cables Cool, Gardiner! Go for it and send pictures! Then fly off the hours so you can take it to Sun 'n' Fun. Jack Phillips NX899JP Raleigh, NC -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of airlion Sent: Monday, January 18, 2010 6:21 PM Subject: Re: Pietenpol-List: aileron cables Jack, I just did that fix for my aileron cables as we speak and got good clearance. I just had my inspection last friday and passed the first go around. I can now fly when I get my nerve up. Cheers, Gardiner Mason ----- Original Message ---- From: Jack Phillips Sent: Mon, January 18, 2010 3:40:49 PM Subject: RE: Pietenpol-List: aileron cables I had the same problem Douwe. Congratulations! This just shows that your aileron horns are square with the torque tube (if they are square, the cables can't help but hit each other). Problem was solved by judicious application of a hammer to one side of the aileron horn on the torque tube. Just bend one of the horns (or both, but in opposite directions) enough to give some clearance between the cables. Depending on your enthusiasm with the hammer, you might have to enlarge the holes where they pass through the plywood under the instrument panel to maintain clearance. Jack Phillips NX899JP Rakeigh, NC -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe Blumberg Sent: Monday, January 18, 2010 2:20 PM Subject: Pietenpol-List: aileron cables Where my aileron cables cross in front of the stick, they rub a little. Did you guys offset them somehow or wrap one with something to protect them? Douwe ________________________________ Message 14 ____________________________________ Time: 05:30:19 PM PST US From: "Jack" Subject: RE: Pietenpol-List: aileron cables Thanks Jack and Douwe, I'm just getting ready to weld mine. Will plan to offset a bit. 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