Pietenpol-List Digest Archive

Sun 02/23/03


Total Messages Posted: 12



Today's Message Index:
----------------------
 
     1. 07:50 AM - will an A-65 stop spinning? (walter evans)
     2. 08:07 AM - Rodder's Roundtable - Plastic Windscreen (ken breier)
     3. 08:12 AM - Re: will an A-65 stop spinning? (TomTravis@aol.com)
     4. 10:50 AM - Re: will an A-65 stop spinning? (Jack Phillips)
     5. 12:17 PM - Re: will an A-65 stop spinning? (Dick and Marge Gillespie)
     6. 06:10 PM - Re: do the nozzles shut off automatically?? (Gary McNeel, Jr.)
     7. 06:59 PM - Re: will an A-65 stop spinning? (ZigoDan@aol.com)
     8. 07:02 PM - Re: will an A-65 stop spinning? (ZigoDan@aol.com)
     9. 07:23 PM - Re: will an A-65 stop spinning? (Richard Navratril)
    10. 07:33 PM - another windshield Q (Richard Navratril)
    11. 10:09 PM - Tailspan (mark moir)
    12. 11:05 PM - Re: Tailspan (clif)
 
 
 


Message 1


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    Time: 07:50:13 AM PST US
    From: "walter evans" <wbeevans@worldnet.att.net>
    "Fishnet" <Fishnet@topica.com>
    Subject: will an A-65 stop spinning?
    --> Pietenpol-List message posted by: "walter evans" <wbeevans@worldnet.att.net> This question was brought on by the fact that, over the years I've seen two different planes flying over, backfiring like mad. That made me think of,,,what if I lost a mag in my A-65? I'd have to shut off the bad one and run on the good one to get me home. What if the first one you select is the bad one and the engine dies? Here's the question,,,An A-65 with a wood prop, let's say pulled back to idle, and you shut off the mags. Would the engine keep spinning? Would it make a difference if you were at cruise or flying slow? Posed this question to my Mentor and he said he'd never actually done it. But if I wanted to know, go up and try it. Figured I'd ask you guys/girls on your past experiences walt NX140DL (north N.J.)


    Message 2


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    Time: 08:07:39 AM PST US
    From: "ken breier" <kbreier@attbi.com>
    Subject: Rodder's Roundtable - Plastic Windscreen
    --> Pietenpol-List message posted by: "ken breier" <kbreier@attbi.com> For more on the windscreen shaping http://www.roddingroundtable.com/dcforum/DCForumID1/2686.html


    Message 3


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    Time: 08:12:28 AM PST US
    From: TomTravis@aol.com
    Subject: Re: will an A-65 stop spinning?
    --> Pietenpol-List message posted by: TomTravis@aol.com Walt, It depends on the compression of the engine and the speed of the airplane. The engine will usually continue to spin until you get fairly slow. If the prop stops, a high-compression engine will take lots of speed to get turning again - maybe more speed than a Piet can generate. Tom


    Message 4


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    Time: 10:50:16 AM PST US
    From: "Jack Phillips" <jackphillips@earthlink.net>
    Subject: will an A-65 stop spinning?
    --> Pietenpol-List message posted by: "Jack Phillips" <jackphillips@earthlink.net> Hi Walt, Years ago I used to practive airshow routines in a J-3 Cub. I had a routine that ended with a loop above the runway at about 1,500 feet AGL. At the top of the loop where the plane was going pretty slow, I would chop the throttle and cut the mags. The prop would stop (and this was a metal prop on a Continental A65) and then I would finish the loop, dive it to 120 mph and loop it again without power. After that loop I would enter the pattern and glide it in for a landing (the trick is to aim for the middle of the runway - then you don't risk landing it too short). Once on the ground and stopped, I would hop out, prop the engine and taxi it back to the crowd. So to answer your question, no the engine WON'T keep spinning - not at idle with a wooden prop at slow airspeeds. I never tried to see if I could airstart it once I had it stopped. When I would dive it to 120 for the second loop, the prop would slowly tick over but the engine wouldn't start because I still had the ignition off. The Cub had a Vne of 125 mph and that might have been enough to re-start the engine. The Piet should probably not be flown that fast (I've assumed a Vne of 110mph for mine). It is fairly safe to test this. Get up high above your airport (preferably with no one else in the pattern) and cut the mags. First try a normal glide to see if the prop will stop. If not, you can restart it if you like by just turning the mags back on. If it does stop and you have enough altitude, try to dive it to the redline airspeed and see if you can restart the engine. If you don't have enough altitude or can't restart it, set up for a landing with your "aiming point" the middle of the runway. You might find it glides better with the prop stopped than with the drag of the windmilling engine. If you are a little high, slip it to keep your touchdown near the center of the runway. If too low, hopefully you will be able to make the runway or a suitable overrun area. Obviously, it's best to practive this over a long runway. Jack -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of walter evans Subject: Pietenpol-List: will an A-65 stop spinning? --> Pietenpol-List message posted by: "walter evans" <wbeevans@worldnet.att.net> This question was brought on by the fact that, over the years I've seen two different planes flying over, backfiring like mad. That made me think of,,,what if I lost a mag in my A-65? I'd have to shut off the bad one and run on the good one to get me home. What if the first one you select is the bad one and the engine dies? Here's the question,,,An A-65 with a wood prop, let's say pulled back to idle, and you shut off the mags. Would the engine keep spinning? Would it make a difference if you were at cruise or flying slow? Posed this question to my Mentor and he said he'd never actually done it. But if I wanted to know, go up and try it. Figured I'd ask you guys/girls on your past experiences walt NX140DL (north N.J.)


    Message 5


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    Time: 12:17:07 PM PST US
    From: "Dick and Marge Gillespie" <dickmarg@peganet.com>
    Subject: Re: will an A-65 stop spinning?
    --> Pietenpol-List message posted by: "Dick and Marge Gillespie" <dickmarg@peganet.com> Walt, When I was a student with an instructor in the rear of a Champ (with an A-65) I was practicing stalls at 3,000 AGL when the darned engine quit. It was very quiet and the instsructor said " I got it." He dove it, the prop started windmilling, and lo and behold it started. DickG ----- Original Message ----- From: "walter evans" <wbeevans@worldnet.att.net> <Fishnet@topica.com> Subject: Pietenpol-List: will an A-65 stop spinning? > --> Pietenpol-List message posted by: "walter evans" <wbeevans@worldnet.att.net> > > This question was brought on by the fact that, over the years I've seen two different planes flying over, backfiring like mad. > That made me think of,,,what if I lost a mag in my A-65? I'd have to shut off the bad one and run on the good one to get me home. What if the first one you select is the bad one and the engine dies? > Here's the question,,,An A-65 with a wood prop, let's say pulled back to idle, and you shut off the mags. Would the engine keep spinning? Would it make a difference if you were at cruise or flying slow? > Posed this question to my Mentor and he said he'd never actually done it. But if I wanted to know, go up and try it. > Figured I'd ask you guys/girls on your past experiences > walt > NX140DL > (north N.J.) > >


    Message 6


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    Time: 06:10:50 PM PST US
    From: "Gary McNeel, Jr." <gmcneel@mykitplane.com>
    Subject: do the nozzles shut off automatically??
    --> Pietenpol-List message posted by: "Gary McNeel, Jr." <gmcneel@mykitplane.com> Walt, most are not automatic as at a gas station. The hose is usually thicker and it comes out pretty fast. The one I often use needs to be anticipated. After you let go of the pump handle there is still about a pint or two left in the line that still needs to go somewhere (usually ends up on the wing if I don't anticipate it right!). So I usually watch in the inlet and about 1/2 to 1 inch before the top I stop. Yesterday, while at the airport, the line fuel truck came and gassed up the plane. Fuel went all of the wings from both fuel tanks. He didn't blink an eye. The plane I was flying was a Citabria and I am guessing the paint was of the "fleet" variety, maybe an epoxy or catalyzed enamel. What got me was how cavalier the guy was, just spewed fuel on it. I will say it was pretty windy, about 20-25 mph. -Gary > -----Original Message----- > From: owner-pietenpol-list-server@matronics.com > [mailto:owner-pietenpol-list-server@matronics.com]On Behalf Of walter > evans > Sent: Friday, February 21, 2003 4:49 PM > To: piet discussion; Fishnet > Subject: Pietenpol-List: do the nozzles shut off automatically?? > > > --> Pietenpol-List message posted by: "walter evans" > <wbeevans@worldnet.att.net> > > I'm ashamed to admit ,that when I started flying, I flew a club > plane that was always fueled by a line/fuel guy with a roving gas truck. > Every plane from way back then till 6 years ago was always full > when I got it. > Then, got into Ultralights, and the " carry/mix your own fuel." > Well anyway,,,now my Pietenpol is flying, and the first few main > tank fulls I hand carried from the airport next door, with 100LL. > Soon it'll be time to grow up and fly to my second permitted > airport , in Phase 1 , for fuel in Sussex NJ, to the north. > I have a 14 gal main/nose tank, and a 10 gal center/ top wing > tank ( that feeds by gravity to the main tank) > I know the mess that I've had fuelling the U/L with a gas can, > and over filling. > Do the AV GAS pump nozzles shut off automatically like a car gas nozzle? > I've only put some gas in planes since, and never filled them up. > Can I over fill the top tank and fill up the cockpit and my seat? > Or do I have to do the " watch the gallons and do the finger wave thing"? > What I'm asking is,,,"do the nozzles shut off automatically?" > walt > NX140DL > (north N.J.) > >


    Message 7


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    Time: 06:59:12 PM PST US
    From: ZigoDan@aol.com
    Subject: Re: will an A-65 stop spinning?
    --> Pietenpol-List message posted by: ZigoDan@aol.com Walt, I had a PA 22-108 with an Lycoming 0235, 1700 smoh, about 300 since top, compression's check in the 70's metal prop. I flew it a lot and played around, used to pull the mixture lean, and cut the mags, never had to use the starter because it just kept wind milling. Tried to slow it down but never got the prop to start. I would switch mags on, push full rich and aplly power with no problem. I know it's a different engine and plane. Dan


    Message 8


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    Time: 07:02:52 PM PST US
    From: ZigoDan@aol.com
    Subject: Re: will an A-65 stop spinning?
    --> Pietenpol-List message posted by: ZigoDan@aol.com I meant to say never got the prop to stop! Dan


    Message 9


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    Time: 07:23:16 PM PST US
    From: "Richard Navratril" <horzpool@goldengate.net>
    Subject: Re: will an A-65 stop spinning?
    --> Pietenpol-List message posted by: "Richard Navratril" <horzpool@goldengate.net> Walt I dont think you would want to shut off one mag to cure back firing. Each mag has one plug on each cylinder. Once, back in the late 70's I had an engine go out in a Cessna 150. I landed in a field with no damage. The prop continued to windmill all of the way down till I slowed for landing. Dick N. ----- Original Message ----- From: "walter evans" <wbeevans@worldnet.att.net> <Fishnet@topica.com> Subject: Pietenpol-List: will an A-65 stop spinning? > --> Pietenpol-List message posted by: "walter evans" <wbeevans@worldnet.att.net> > > This question was brought on by the fact that, over the years I've seen two different planes flying over, backfiring like mad. > That made me think of,,,what if I lost a mag in my A-65? I'd have to shut off the bad one and run on the good one to get me home. What if the first one you select is the bad one and the engine dies? > Here's the question,,,An A-65 with a wood prop, let's say pulled back to idle, and you shut off the mags. Would the engine keep spinning? Would it make a difference if you were at cruise or flying slow? > Posed this question to my Mentor and he said he'd never actually done it. But if I wanted to know, go up and try it. > Figured I'd ask you guys/girls on your past experiences > walt > NX140DL > (north N.J.) > >


    Message 10


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    Time: 07:33:30 PM PST US
    From: "Richard Navratril" <horzpool@goldengate.net>
    Subject: another windshield Q
    --> Pietenpol-List message posted by: "Richard Navratril" <horzpool@goldengate.net> Thanks all for the help the other day. My wife went out for the afternoon so I fired up the oven and practiced with a few scraps then bent all of my pieces. My lexan was .125, 200 degrees for 6 minutes worked just fine. The Lexan I used came from a donation to our EAA chapter and it had been stored for a long time and deformed, so it needed straightening. I had also tried cold bending in a brake but that thicness did not work well. Dick N.


    Message 11


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    Time: 10:09:40 PM PST US
    From: "mark moir" <iammarktheman@msn.com>
    Subject: Tailspan
    --> Pietenpol-List message posted by: "mark moir" <iammarktheman@msn.com> Quick question for you peitenpol builders and flyers. I am seriously considering starting a peitenpol within the next year and would like to do much of the smaller items in my basement woodshop. What is the approximate tailspan of the horizontal stabilizer? It would be nicer to build the ribs and the tail in my shop as that is where all my tools are but am concerned that I may not have have enough room for the stabilizer. Thanks for any info you might be able to provide me! Mark


    Message 12


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    Time: 11:05:27 PM PST US
    From: clif <cdawson5854@shaw.ca>
    Subject: Re: Tailspan
    --> Pietenpol-List message posted by: clif <cdawson5854@shaw.ca> 90" x 19" in my flying and glider manual. Clif ----- Original Message ----- From: "mark moir" <iammarktheman@msn.com> Subject: Pietenpol-List: Tailspan > --> Pietenpol-List message posted by: "mark moir" <iammarktheman@msn.com> > > Quick question for you peitenpol builders and flyers. I am seriously > considering starting a peitenpol within the next year and would like to do > much of the smaller items in my basement woodshop. What is the approximate > tailspan of the horizontal stabilizer? It would be nicer to build the ribs > and the tail in my shop as that is where all my tools are but am concerned > that I may not have have enough room for the stabilizer. Thanks for any info > you might be able to provide me! > Mark > >




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