Original Posted By: "D.J.H."
Bob i just found the issue.it is in Jan.98 Sport Av.page 126 The ownersname is Larry D.Harrison phone#912/246-1315 or246-3702. 2.5 liter 60/30 wood prop he claims 800ft/min climb at 2700 rpm cruise75@2400 take off and landings very short. 615lbs. Hope this helps.. Doug________________________________________________________________________________
Pietenpol-List: chevy Poplar Piet
Pietenpol-List: chevy Poplar Piet
Original Posted By: stephen
Bob i just found the issue.it is in Jan.98 Sport Av.page 126 The ownersname is Larry D.Harrison phone#912/246-1315 or246-3702. 2.5 liter 60/30 wood prop he claims 800ft/min climb at 2700 rpm cruise75@2400 take off and landings very short. 615lbs. Hope this helps.. Doug________________________________________________________________________________
Bob i just found the issue.it is in Jan.98 Sport Av.page 126 The ownersname is Larry D.Harrison phone#912/246-1315 or246-3702. 2.5 liter 60/30 wood prop he claims 800ft/min climb at 2700 rpm cruise75@2400 take off and landings very short. 615lbs. Hope this helps.. Doug________________________________________________________________________________
Pietenpol-List: Re: chevy Poplar Piet
Original Posted By: TLC62770
Hi allI called and talked to Mr Larry Harrison to night. He is now using a 72x30prop. Gets 75 mph at 2400 rpm,will go 80 mph at 2800 rpm but the plane dosntlike it. Geo metro-chevy sprint radiator. Standard distributor with smallalternator. hand prop start,easy. standard intake, different carb, staightstack exaust. Custom alum crankshaft to prop adaptor. No special thrust brg.just std. brgs. Changed oil sump pickup pipe some. Runs very sweet notrouble. Has 39 hr 40 min. time on engine. Pulls as strong as a continental65 he says. Weighs all assembeled 240 lbs. Looks are very close to Model Ain looks and sound. He's started a Sky Scout now.Cheers,Steve Yahn>Bob i just found the issue.it is in Jan.98 Sport Av.page 126 The owners>name is Larry D.Harrison phone#912/246-1315 or246-3702.> 2.5 liter 60/30 wood prop he claims 800ft/min climb at 2700 rpm cruise>75@2400 take off and landings very short. 615lbs.> Hope this helps.. Doug>>________________________________________________________________________________
Hi allI called and talked to Mr Larry Harrison to night. He is now using a 72x30prop. Gets 75 mph at 2400 rpm,will go 80 mph at 2800 rpm but the plane dosntlike it. Geo metro-chevy sprint radiator. Standard distributor with smallalternator. hand prop start,easy. standard intake, different carb, staightstack exaust. Custom alum crankshaft to prop adaptor. No special thrust brg.just std. brgs. Changed oil sump pickup pipe some. Runs very sweet notrouble. Has 39 hr 40 min. time on engine. Pulls as strong as a continental65 he says. Weighs all assembeled 240 lbs. Looks are very close to Model Ain looks and sound. He's started a Sky Scout now.Cheers,Steve Yahn>Bob i just found the issue.it is in Jan.98 Sport Av.page 126 The owners>name is Larry D.Harrison phone#912/246-1315 or246-3702.> 2.5 liter 60/30 wood prop he claims 800ft/min climb at 2700 rpm cruise>75@2400 take off and landings very short. 615lbs.> Hope this helps.. Doug>>________________________________________________________________________________
Pietenpol-List: Re: chevy Poplar Piet
Original Posted By: DXLViolins
Hi Steve I'm confused . what does the numbers on a prop mean ? I hear the firstnumber means the lenght of the prop and the second number means tha distantthe prop pulls the plane ahead in one revolution . I have also heard thesecond number means the angle of the pitch of the prop . Please help tostraighten me out on this .________________________________________________________________________________
Hi Steve I'm confused . what does the numbers on a prop mean ? I hear the firstnumber means the lenght of the prop and the second number means tha distantthe prop pulls the plane ahead in one revolution . I have also heard thesecond number means the angle of the pitch of the prop . Please help tostraighten me out on this .________________________________________________________________________________
Pietenpol-List: Re: chevy Poplar Piet
Original Posted By: Steve Eldredge
Terry,Regarding the prop numbers.. yes, first number is diameter, the second is thedistance the prop theoretically screws through the air in one revolution,without slip.So, a 72 x 30 is a 6ft dia, which pulls 2' 6" forward.Hope this helps,Dom________________________________________________________________________________
Terry,Regarding the prop numbers.. yes, first number is diameter, the second is thedistance the prop theoretically screws through the air in one revolution,without slip.So, a 72 x 30 is a 6ft dia, which pulls 2' 6" forward.Hope this helps,Dom________________________________________________________________________________
Pietenpol-List: RE: chevy Poplar Piet
Original Posted By: Greg Cardinal
On Tuesday, April 14, 1998 5:33 AM, TLC62770 [SMTP:TLC62770(at)aol.com] wrote:> Hi Steve> I'm confused . what does the numbers on a prop mean ? I hear the first> number means the lenght of the prop and the second number means tha distant> the prop pulls the plane ahead in one revolution . I have also heard the> second number means the angle of the pitch of the prop . Please help to> straighten me out on this .I believe that it depends on the prop. I think in almost every case the first number is the lenght of the prop. On the props I am familiar with (Sensenich, Falcon, Culver, Flotrop, etc) the second number is the distance the prop slices through the air in one revolution. (not including any inefficiencies or slippage, which there is a significant ammount of course) However, some props especially ground adjustable, and variable pitch ones measure pitch in degrees from neutral. I'm not sure how they number these props since I imaging they have to take into account airfoil section, hot boots, q tips, plan form etc. Anyone?SteveeHi McCaully? Yea I'd like a 5 blade simitar Q-tip hot section variable hydraulic prop. Oh yea got anything that;ll fit my Model A?________________________________________________________________________________
On Tuesday, April 14, 1998 5:33 AM, TLC62770 [SMTP:TLC62770(at)aol.com] wrote:> Hi Steve> I'm confused . what does the numbers on a prop mean ? I hear the first> number means the lenght of the prop and the second number means tha distant> the prop pulls the plane ahead in one revolution . I have also heard the> second number means the angle of the pitch of the prop . Please help to> straighten me out on this .I believe that it depends on the prop. I think in almost every case the first number is the lenght of the prop. On the props I am familiar with (Sensenich, Falcon, Culver, Flotrop, etc) the second number is the distance the prop slices through the air in one revolution. (not including any inefficiencies or slippage, which there is a significant ammount of course) However, some props especially ground adjustable, and variable pitch ones measure pitch in degrees from neutral. I'm not sure how they number these props since I imaging they have to take into account airfoil section, hot boots, q tips, plan form etc. Anyone?SteveeHi McCaully? Yea I'd like a 5 blade simitar Q-tip hot section variable hydraulic prop. Oh yea got anything that;ll fit my Model A?________________________________________________________________________________
Pietenpol-List: Re: chevy Poplar Piet
Original Posted By: DXLViolins
Thanks Dom . I thought that was right . Just getting straighted in homebuilts. My partner and i have been to several workshops . We have also have talkedto many builders . We have also read several books on how to build your firstairplane . We both have joined a E.A.A. chapter . the guys there have helped alot , to answer many questions . They have helped a lot . We are building aCorvair powered Piet . This is a real Piet , not a GN1 . we are going to cleanthe engine up . The heads will be c.c.'d ,balance the pistons , rods , portthe intakes and the exhaust . Change the engine over to a single two barrelcarb instead of two singles . Put on chrome down stacks , replace the Chevyalternater with one much smaller and lighter . Do you think it is nessasary tohave dual spark plugs for each cylinder ? Should have a dual ignition system ?Thanks Terry________________________________________________________________________________
Thanks Dom . I thought that was right . Just getting straighted in homebuilts. My partner and i have been to several workshops . We have also have talkedto many builders . We have also read several books on how to build your firstairplane . We both have joined a E.A.A. chapter . the guys there have helped alot , to answer many questions . They have helped a lot . We are building aCorvair powered Piet . This is a real Piet , not a GN1 . we are going to cleanthe engine up . The heads will be c.c.'d ,balance the pistons , rods , portthe intakes and the exhaust . Change the engine over to a single two barrelcarb instead of two singles . Put on chrome down stacks , replace the Chevyalternater with one much smaller and lighter . Do you think it is nessasary tohave dual spark plugs for each cylinder ? Should have a dual ignition system ?Thanks Terry________________________________________________________________________________
Pietenpol-List: Re: chevy Poplar Piet
Original Posted By: Wkoucky
Do you think it is nessasary tohave dual spark plugs for each cylinder ? Should have a dual ignition system ?Thanks TerryTerry,I'm probably among the least qualified in the group, as it will be some 18months before I am able to start my project... but regarding ignition for yourChevy, I would think the "belt and braces" approach of full dual ignition... 2sets of plugs....would be sensible. Here in the UK, as a "pilot" with a full 8hours (as a trainee some years ago) I would certainly enjoy the peace of mindof twin sparks!Dom________________________________________________________________________________
Do you think it is nessasary tohave dual spark plugs for each cylinder ? Should have a dual ignition system ?Thanks TerryTerry,I'm probably among the least qualified in the group, as it will be some 18months before I am able to start my project... but regarding ignition for yourChevy, I would think the "belt and braces" approach of full dual ignition... 2sets of plugs....would be sensible. Here in the UK, as a "pilot" with a full 8hours (as a trainee some years ago) I would certainly enjoy the peace of mindof twin sparks!Dom________________________________________________________________________________
Pietenpol-List: Re: chevy Poplar Piet
Original Posted By: Roger Hanson / Good News Computers
>I always thought that the duel plugs were for performance and not safety.What is DXL Violins? I am a violin maker by trade. Are you in the business?William________________________________________________________________________________
>I always thought that the duel plugs were for performance and not safety.What is DXL Violins? I am a violin maker by trade. Are you in the business?William________________________________________________________________________________
Pietenpol-List: RE: chevy Poplar Piet
Original Posted By: djscott(at)heartland.bradley.edu (David Scott)
I'd like to UNSUBSCRIBE. Thanks-----Original Message-----EldredgeSent: Tuesday, April 14, 1998 9:39 AMSubject: Pietenpol-List: RE: chevy Poplar PietI'd like to UNSUBSCRIBE. ThanksOn Tuesday, April 14, 1998 5:33 AM, TLC62770 [SMTP:TLC62770(at)aol.com] wrote:> Hi Steve> I'm confused . what does the numbers on a prop mean ? I hear thefirst> number means the lenght of the prop and the second number means thadistant> the prop pulls the plane ahead in one revolution . I have also heard the> second number means the angle of the pitch of the prop . Please help to> straighten me out on this .I believe that it depends on the prop. I think in almost every case thefirst number is the lenght of the prop. On the props I am familiar with(Sensenich, Falcon, Culver, Flotrop, etc) the second number is the distancethe prop slices through the air in one revolution. (not including anyinefficiencies or slippage, which there is a significant ammount of course)However, some props especially ground adjustable, and variable pitch onesmeasure pitch in degrees from neutral. I'm not sure how they number theseprops since I imaging they have to take into account airfoil section, hotboots, q tips, plan form etc. Anyone?SteveeHi McCaully? Yea I'd like a 5 blade simitar Q-tip hot section variablehydraulic prop. Oh yea got anything that;ll fit my Model A?________________________________________________________________________________
I'd like to UNSUBSCRIBE. Thanks-----Original Message-----EldredgeSent: Tuesday, April 14, 1998 9:39 AMSubject: Pietenpol-List: RE: chevy Poplar PietI'd like to UNSUBSCRIBE. ThanksOn Tuesday, April 14, 1998 5:33 AM, TLC62770 [SMTP:TLC62770(at)aol.com] wrote:> Hi Steve> I'm confused . what does the numbers on a prop mean ? I hear thefirst> number means the lenght of the prop and the second number means thadistant> the prop pulls the plane ahead in one revolution . I have also heard the> second number means the angle of the pitch of the prop . Please help to> straighten me out on this .I believe that it depends on the prop. I think in almost every case thefirst number is the lenght of the prop. On the props I am familiar with(Sensenich, Falcon, Culver, Flotrop, etc) the second number is the distancethe prop slices through the air in one revolution. (not including anyinefficiencies or slippage, which there is a significant ammount of course)However, some props especially ground adjustable, and variable pitch onesmeasure pitch in degrees from neutral. I'm not sure how they number theseprops since I imaging they have to take into account airfoil section, hotboots, q tips, plan form etc. Anyone?SteveeHi McCaully? Yea I'd like a 5 blade simitar Q-tip hot section variablehydraulic prop. Oh yea got anything that;ll fit my Model A?________________________________________________________________________________