Original Posted By: "bender"
But of course, a foot peg for Mary Beth!Don not archiveCurt MerdanFlower Mound, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: "A" cowling
Pietenpol-List: "A" cowling
Re: Pietenpol-List: "A" cowling
Original Posted By: helspersew(at)aol.com
Very very nice! What is the prop? Or where did you get the plan for carving it.it looks like the old Lawrence and Fahlin style props that Mr. Pietenpol used.Nice.Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: "A" cowling
Very very nice! What is the prop? Or where did you get the plan for carving it.it looks like the old Lawrence and Fahlin style props that Mr. Pietenpol used.Nice.Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: "A" cowling
Original Posted By: bender
Jeff,I had all these same questions when I did mine. I had to make that wood disc 3 times before I settled on about 1/2" thick spruce board glued to 1/8" plywood. Then I had to faddiddle around trying to get the correct angle on it all the way around the circumference. That angle was not constant, depending on how the side and bottom cowls approached it. (I made my side and bottom cowl all one piece a-la-Walt Bowe from California.) I kept the board in there so I had something to screw the aluminum disc and cowls to. After it was all together I removed the bolts that held the wood disc to the engine, so that the engine vibration could not be transferred to the cowl pieces. And that engine really jumps, up off the ash engine mounts, by about 1" on start-up, against the springs on the engine hold-down bolts. That cowling was one of the most challenging parts of the airplane. Ended up making some of the pieces twice. I guess if was all riveted together then maybe you could get rid of the wood disc? But if that were the case, lets say you wanted to remove your cowlings. I would have to remove the prop and prop flange from the engine first, because the hole in my aluminum cone is smaller than the Comntinental-style (6-bolt) prop flange. Put your thinking cap on.Dan HelsperPuryear, TN-----Original Message-----
Jeff,I had all these same questions when I did mine. I had to make that wood disc 3 times before I settled on about 1/2" thick spruce board glued to 1/8" plywood. Then I had to faddiddle around trying to get the correct angle on it all the way around the circumference. That angle was not constant, depending on how the side and bottom cowls approached it. (I made my side and bottom cowl all one piece a-la-Walt Bowe from California.) I kept the board in there so I had something to screw the aluminum disc and cowls to. After it was all together I removed the bolts that held the wood disc to the engine, so that the engine vibration could not be transferred to the cowl pieces. And that engine really jumps, up off the ash engine mounts, by about 1" on start-up, against the springs on the engine hold-down bolts. That cowling was one of the most challenging parts of the airplane. Ended up making some of the pieces twice. I guess if was all riveted together then maybe you could get rid of the wood disc? But if that were the case, lets say you wanted to remove your cowlings. I would have to remove the prop and prop flange from the engine first, because the hole in my aluminum cone is smaller than the Comntinental-style (6-bolt) prop flange. Put your thinking cap on.Dan HelsperPuryear, TN-----Original Message-----
Re: Pietenpol-List: "A" cowling
Original Posted By: "bender"
Jeff, here's a picture of my cowling up in Columbus. I have a wood disk, but it floats on the front of the engine, not attached. The two studs in the front of the engine to locate the flywheel housing are countersunk into the wood disk, which helps give it support and keep it in position. Larry Morlock----- Original Message -----
Jeff, here's a picture of my cowling up in Columbus. I have a wood disk, but it floats on the front of the engine, not attached. The two studs in the front of the engine to locate the flywheel housing are countersunk into the wood disk, which helps give it support and keep it in position. Larry Morlock----- Original Message -----
Re: Pietenpol-List: "A" cowling
Original Posted By: l.morlock
Larry, It looks like your aluminum cone overlaps your cowling? My cowling actually overlaps my cone. Maybe I did it the hard way. Dan HelsperPuryear, TN-----Original Message-----
Larry, It looks like your aluminum cone overlaps your cowling? My cowling actually overlaps my cone. Maybe I did it the hard way. Dan HelsperPuryear, TN-----Original Message-----
Pietenpol-List: Re: "A" cowling
Original Posted By: "bender"
Ouch. Looks like I might be a week too late for this one. Right now the academiccalendar is showing the week between quarters to be June 8-17 and that's whenI'll probably be moving the airplane. However, I'll have to see how finalsgo the week before June 8.I am enrolled in the graduate program at Cal Poly, attempting to get my master'sdegree in fire protection engineering. Can't let up because at my age, if Islow down or stop I'll forget everything I've learned and will have to startover again. It's all I can do to remember how to land an airplane anymore thesedays ;o)At any rate, I can probably stop in at Frazier Lake Airpark whether it's get-togethertime or not. I'm thinking of diverting to San Luis Obispo to visit theCal Poly campus anyway, and it's not that much of a stretch to go on up to Frazierfrom there before getting back on the Interstate 5 route that I plan totake most of the way north.--------Oscar ZunigaSan Antonio, TXAir Camper NX41CCRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: "A" cowling
Ouch. Looks like I might be a week too late for this one. Right now the academiccalendar is showing the week between quarters to be June 8-17 and that's whenI'll probably be moving the airplane. However, I'll have to see how finalsgo the week before June 8.I am enrolled in the graduate program at Cal Poly, attempting to get my master'sdegree in fire protection engineering. Can't let up because at my age, if Islow down or stop I'll forget everything I've learned and will have to startover again. It's all I can do to remember how to land an airplane anymore thesedays ;o)At any rate, I can probably stop in at Frazier Lake Airpark whether it's get-togethertime or not. I'm thinking of diverting to San Luis Obispo to visit theCal Poly campus anyway, and it's not that much of a stretch to go on up to Frazierfrom there before getting back on the Interstate 5 route that I plan totake most of the way north.--------Oscar ZunigaSan Antonio, TXAir Camper NX41CCRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: "A" cowling
Pietenpol-List: Re: "A" cowling
Original Posted By: "bender"
totally...Gene...it was funny to me..jab away..I had another thought..the end of the camshaft is covered by the wood disk..and it does leak a bit whenits running if not covereddid you guys put something over the camshaft ?.. i was thinking the wood disk anda gasket bolted to the engine took care of that...and the cowl attached to the woodjeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: "A" cowling
totally...Gene...it was funny to me..jab away..I had another thought..the end of the camshaft is covered by the wood disk..and it does leak a bit whenits running if not covereddid you guys put something over the camshaft ?.. i was thinking the wood disk anda gasket bolted to the engine took care of that...and the cowl attached to the woodjeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: "A" cowling
Original Posted By: "Douwe Blumberg"
that looks just like the photos of the scout in the '33 magazine..i usually check the sky scout drawings to clarify stuff i get confused about..theyare better drawings of most of the same stuffthanks for the video linkjeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
that looks just like the photos of the scout in the '33 magazine..i usually check the sky scout drawings to clarify stuff i get confused about..theyare better drawings of most of the same stuffthanks for the video linkjeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Re: Pietenpol-List: "A" cowling
Original Posted By: helspersew(at)aol.com
Yes, the aluminum cone does overlap the cowling - kind of. I attached a narrow strip of aluminum around the back side of the wood disk with screws, riveted the cone to that, then used rivnuts to attach the side panels to the strip, so I can take the side panels off without removing the cone. That makes the side panels flush with the cone. Hope that explanation makes sense. But I probably did it the hard way. Larry ----- Original Message -----
Yes, the aluminum cone does overlap the cowling - kind of. I attached a narrow strip of aluminum around the back side of the wood disk with screws, riveted the cone to that, then used rivnuts to attach the side panels to the strip, so I can take the side panels off without removing the cone. That makes the side panels flush with the cone. Hope that explanation makes sense. But I probably did it the hard way. Larry ----- Original Message -----
Pietenpol-List: Re: "A" cowling
Original Posted By: "Clif Dawson"
thanks guys..so you covered the cam and the wood is not bolted to the engine after the cowlis made... its making more sense nowjeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
thanks guys..so you covered the cam and the wood is not bolted to the engine after the cowlis made... its making more sense nowjeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________