Original Posted By: "Don Emch"
Hey, I like the one about notching your leg enough to allow for more stick travel! Actually, a nice Rube Goldberg setup would be to have a handgrip lever on the stick that would engage a reduction gear, say 2:1, to double the cable travel per unit of stick travel when needed. Or instead of standard aileron cable pulleys, you could use some cam pulleys like the ones used on compound bows to ratchet up the cable action as you near the end of the pulley rotation. Try getting those puppies past your DAR or Tech Counselor-!And side note to Mr. Dortch in Austin- there are two other gents in the Austin area who I've threatened to hook up with sometime by possibly flying 41CC in to the Old Kingsbury Aerodrome just outside of Seguin ( http://www.vintageaviation.org/aerodrome/index.html ). Maybe we can do that one of these Saturdays so you can see my airplane and maybe go for a ride. As an added bonus, one of the aircraft in the museum at Old Kingsbury is a Pietenpol Sky Scout...Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net_________________________________________________________________Cant afford to quit your job? Earn your AS, BS, or MS degree online in 1 year. http://www.classesusa.com/clickcount.cf ... ___Subject: Pietenpol-List: New Prop
Pietenpol-List: New Prop
Pietenpol-List: Re: New Prop
Original Posted By: "Don Emch"
A few months back I started considering a new prop for my A-65 powered Piet. Ithad a 72 x 44 Hegy on it. I bought it used and the previous owner claimed itwas re-pitched by Hegy to a 72 x 42. However it was not marked as such. SoI don't know for sure but I think it was probably still a 72 x 44. Anyway Iwas getting decent climb and decent speed but that really isn't the right combinationfor a Piet. In talking with a lot of the old timers and several propmakersI decided it needed something flatter and since I have plenty of groundclearance, something longer for more thrust area. After talking to Ed Sterbafor a few months we decided to try a 76 x 38. This size and pitch is not availablefrom anyone as an off-the-shelf prop. But Ed can custom carve. He hassome shapes and profiles that he typically carves but I wanted something thatlooked a little like the props I had seen on Mr. Pietenpol's ships in the 30's.Ed Sterba is a very talented guy that can carve a prop profile based on pictures.So I sent him several shots of old Piets. He used these to hand carvea cool looking 76 x 38 prop. I was hoping to gain a little rpm with the flatterpitch, but I knew the length might keep it down. He suggested cutting itdown to 74" if my rpm is still a little low, but I hate to lose all that effectivethrust area. Well, I finally got the prop and tried it out over the weekend.The rpm did not increase at all like I was hoping for. I get about 1950rpm static. But there was a great increase in the climb. No increase in rpm,but there must be quite a bit more thrust. The real surprise came when I leveledoff. I was expecting quite a loss in top end and cruise. I still toppedout at 95 mph, which is way too fast for a Piet! Too many weird things goingon at that speed! Cruise was still upper 70's. I was expecting 70 at best.During my test run it started to rain fairly hard so I was only up about 15minutes. I only got to make one take off which is what I'm most interested in.I do kn! ow that I flew the day before with my other prop in almost identical conditions and waseasily off nearly 100 feet quicker. Another bonus of the prop is the terrificsmoothness. Ed does a fantastic job of balancing. I'm struggling a littlewith the rpm, I'd like a little more, but other than that I'm very, very happywith the prop. Unfortunately I had to wait over 9 weeks for the thing but hedid a super job and it is well worth it. Highly recommended!!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: New Prop
A few months back I started considering a new prop for my A-65 powered Piet. Ithad a 72 x 44 Hegy on it. I bought it used and the previous owner claimed itwas re-pitched by Hegy to a 72 x 42. However it was not marked as such. SoI don't know for sure but I think it was probably still a 72 x 44. Anyway Iwas getting decent climb and decent speed but that really isn't the right combinationfor a Piet. In talking with a lot of the old timers and several propmakersI decided it needed something flatter and since I have plenty of groundclearance, something longer for more thrust area. After talking to Ed Sterbafor a few months we decided to try a 76 x 38. This size and pitch is not availablefrom anyone as an off-the-shelf prop. But Ed can custom carve. He hassome shapes and profiles that he typically carves but I wanted something thatlooked a little like the props I had seen on Mr. Pietenpol's ships in the 30's.Ed Sterba is a very talented guy that can carve a prop profile based on pictures.So I sent him several shots of old Piets. He used these to hand carvea cool looking 76 x 38 prop. I was hoping to gain a little rpm with the flatterpitch, but I knew the length might keep it down. He suggested cutting itdown to 74" if my rpm is still a little low, but I hate to lose all that effectivethrust area. Well, I finally got the prop and tried it out over the weekend.The rpm did not increase at all like I was hoping for. I get about 1950rpm static. But there was a great increase in the climb. No increase in rpm,but there must be quite a bit more thrust. The real surprise came when I leveledoff. I was expecting quite a loss in top end and cruise. I still toppedout at 95 mph, which is way too fast for a Piet! Too many weird things goingon at that speed! Cruise was still upper 70's. I was expecting 70 at best.During my test run it started to rain fairly hard so I was only up about 15minutes. I only got to make one take off which is what I'm most interested in.I do kn! ow that I flew the day before with my other prop in almost identical conditions and waseasily off nearly 100 feet quicker. Another bonus of the prop is the terrificsmoothness. Ed does a fantastic job of balancing. I'm struggling a littlewith the rpm, I'd like a little more, but other than that I'm very, very happywith the prop. Unfortunately I had to wait over 9 weeks for the thing but hedid a super job and it is well worth it. Highly recommended!!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: New Prop
Original Posted By: "walt evans"
I just read my last post and one statement didn't come out quite right. I meantto say I was off about 100 feet quicker with the new prop. Once again, I'mreally happy with the new prop. It gives the ship a real kick in the tail! IfI could just get that rpm up a little bit...Don E.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 04 Apr 2007 19:38:30 -0400
I just read my last post and one statement didn't come out quite right. I meantto say I was off about 100 feet quicker with the new prop. Once again, I'mreally happy with the new prop. It gives the ship a real kick in the tail! IfI could just get that rpm up a little bit...Don E.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 04 Apr 2007 19:38:30 -0400
Re: Pietenpol-List: Re: New Prop
Original Posted By: "Dennis Engelkenjohn"
Don,I just received my 74 X 38 prop I had Ed Sterba build for me. Beautiful prop. Hope to have my engine together within the month and will give it a try. One reason I chose Sterba to build the prop is he will repitch it as many times as you want for free. As soon as I fly behind the prop I'll post a report.GeneN502kR>>>> ________________________________________________________________________________
Don,I just received my 74 X 38 prop I had Ed Sterba build for me. Beautiful prop. Hope to have my engine together within the month and will give it a try. One reason I chose Sterba to build the prop is he will repitch it as many times as you want for free. As soon as I fly behind the prop I'll post a report.GeneN502kR>>>> ________________________________________________________________________________
Re: Pietenpol-List: Crosswinds & aileron
Original Posted By: "walt evans"
On my minimax, I had an aluminum stick bent like one of those things used inelectrical conduit. Had a dogleg in it and came up over my leg and backfurther. Due to shoulder pain with a straight stick.dennis----- Original Message -----
On my minimax, I had an aluminum stick bent like one of those things used inelectrical conduit. Had a dogleg in it and came up over my leg and backfurther. Due to shoulder pain with a straight stick.dennis----- Original Message -----
Pietenpol-List: Re: New Prop
Original Posted By: "Don Emch"
Hey Bill: If you want to accelerate your weather testing I can bring your panel with me on my next layover to St John's Newfoundland and leave it stuck up in a tree along the coastline. If it survives a year there it'll be good for about ten years anywhere else!Scott Knowlton>From: "Bill Church" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: RE: Pietenpol-List: Alternative fabric paint>Date: Thu, 5 Apr 2007 12:03:26 -0400>>Dan,>Thanks for the reminder.>I made up a couple of test panels almost a year ago, coated only with>latex primer and paint, and then promptly forgot to put one outside for>weather testing. They're both sitting in my house. I've got to make up>some kind of holder and put that thing outside. Here's a link to my test>panels:>>http://www.mykitplane.com/Planes/buildL ... per>>>Bill C.>_________________________________________________________________Your Space. Your Friends. Your Stories. Share your world with Windows Live Spaces. http://spaces.live.com/?mkt=en-ca______ ... ___Subject: Pietenpol-List: Re: New Prop
Hey Bill: If you want to accelerate your weather testing I can bring your panel with me on my next layover to St John's Newfoundland and leave it stuck up in a tree along the coastline. If it survives a year there it'll be good for about ten years anywhere else!Scott Knowlton>From: "Bill Church" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: RE: Pietenpol-List: Alternative fabric paint>Date: Thu, 5 Apr 2007 12:03:26 -0400>>Dan,>Thanks for the reminder.>I made up a couple of test panels almost a year ago, coated only with>latex primer and paint, and then promptly forgot to put one outside for>weather testing. They're both sitting in my house. I've got to make up>some kind of holder and put that thing outside. Here's a link to my test>panels:>>http://www.mykitplane.com/Planes/buildL ... per>>>Bill C.>_________________________________________________________________Your Space. Your Friends. Your Stories. Share your world with Windows Live Spaces. http://spaces.live.com/?mkt=en-ca______ ... ___Subject: Pietenpol-List: Re: New Prop
Pietenpol-List: Re: New question from and old brain
Original Posted By: "Don Emch"
Gene,I think you'll really like how the prop does for you. Ed Sterba is a class actguy! Chris, I'm gonna try to escape out to the strip this evening to take somepictures. We just had our fourth baby on Monday, so things are a little hecticaround here! Really enjoying it though!!! Mom and baby are healthy, soeverything is good!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: New question from and old brain
Gene,I think you'll really like how the prop does for you. Ed Sterba is a class actguy! Chris, I'm gonna try to escape out to the strip this evening to take somepictures. We just had our fourth baby on Monday, so things are a little hecticaround here! Really enjoying it though!!! Mom and baby are healthy, soeverything is good!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: New question from and old brain
Original Posted By: lshutks(at)webtv.net (Leon Stefan)
I like to call myself a strong Pietenpol follower too. But I know of a very popularPiet with screws holding the stabilizer down and they worked loose. I thinkthe holes eventually stripped in the wood. The owner fixed the problem,and I don't think it's an issue anymore. I used through bolts on the stabilizer"spar" holes and placed an ispection hole and cover on the bottom side of thefuselage so I can reach up in there and hold the nut with my fingers. Youhave to lay on the ground to see the cover. Not much of a change, but lots morepiece of mind!!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
I like to call myself a strong Pietenpol follower too. But I know of a very popularPiet with screws holding the stabilizer down and they worked loose. I thinkthe holes eventually stripped in the wood. The owner fixed the problem,and I don't think it's an issue anymore. I used through bolts on the stabilizer"spar" holes and placed an ispection hole and cover on the bottom side of thefuselage so I can reach up in there and hold the nut with my fingers. Youhave to lay on the ground to see the cover. Not much of a change, but lots morepiece of mind!!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Re: Pietenpol-List: Re: New Prop
Original Posted By: "Don Emch"
Don,Congrats on the addition of your new crew member.Gene----- Original Message -----
Don,Congrats on the addition of your new crew member.Gene----- Original Message -----