---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Fri 07/12/13: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:27 AM - Re: 4 blade prop () 2. 03:29 AM - Re: Re: Logo Design. (helspersew@aol.com) 3. 04:04 AM - Re: 4 blade prop (Steve Emo) 4. 04:26 AM - Re: 4 blade prop (contato @kraussaero.com.br) 5. 07:43 AM - Upcoming Corvair Colleges (kevinpurtee) 6. 07:51 AM - Re: 4 blade prop (Dortch, Steven D MAJ MIL USA NGB) 7. 10:57 AM - Re: 4 blade prop (helspersew@aol.com) 8. 12:59 PM - Re: 4 blade prop (womenfly2) 9. 02:23 PM - Re: Logo Design. (K5YAC) 10. 02:40 PM - O-200 For sale (brian.e.jardine@l-3com.com) ________________________________ Message 1 _____________________________________ Time: 03:27:40 AM PST US From: Subject: Re: Pietenpol-List: 4 blade prop Dears, it was the best definition I've heard for this case until now. I have years working with airplanes and this was the best. Thank you! Roberto Serrano, www.kraussaero.com.br -----Mensagem Original----- From: Dortch, Steven D MAJ MIL USA NGB Sent: Thursday, July 11, 2013 8:55 PM Subject: Pietenpol-List: 4 blade prop UNCLASSIFIED Dan, Love the look. Discussion on another list (Beech) talked quite a bit about the value of going from 2 to 3 blades on General Aviation airplanes Two blades is more efficient than three blades in all areas, except ground clearance and noise. On most prop planes the prop makes most of the noise, Engine is second. Look at the videos of the electric Sonex E-flight. The plane is almost as noisy as a regular plane. One member is an aerodynamics professor. He said it came down to this. The very most efficient prop is a Single, Big, Long Blade turning at slower RPM with great torque. Yes, a single, one side is a blade, the other is like a club. As you add, blades they become smaller bladed and shorter and less efficient. as you get into 3,4 and more blades they nowstart to run in each other's turbulance and the airflow becomes less smooth. Smaller diameter props have to run faster to make the same thrust. Also the Prop becomes more of a gyroscope as blades are added. That is why early planes with low horsepower engines, turning slow with big props were somewhat efficient. while early ultralights with fast turning chainsaw engines turning small props make a lot of noise with wasted horsepower. Blue Skies, Steve D On 07/11/13, helspersew@aol.com wrote: > I'll chop'em up with this. > > Dan Helsper > Puryear, TN > > > -----Original Message----- > From: John Hofmann > To: pietenpol-list > Sent: Thu, Jul 11, 2013 11:12 am > Subject: Re: Pietenpol-List: Alliance Ohio Fly-in > > I am based 60 north of Brodhead. We were in bad shape up until the past > weekend. All seems good now and it should be dry here for the next week > (according to the forecast). Sunday was the first day I was able to take > theRocket out since May, it has been so wet. > > The real problem this year will be the mosquitos. The rain has made a real > good crop this year. > > > John Hofmann > Vice-President, Information Technology > The Rees Group, Inc. > 2424 American Lane > Madison, WI 53704 > Phone: 608.443.2468 ext 150 > Fax: 608.443.2474 > Email: jhofmann@reesgroupinc.com(blockedmailto:jhofmann@reesgroupinc.com) > > > On Jul 11, 2013, at 10:38 AM, > airlion2@gmail.com(blockedmailto:airlion2@gmail.com) wrote: > > > > airlion2@gmail.com(blockedmailto:airlion2@gmail.com) > > > > Does anyone know about the field conditions at Brodhead? Have they had > > as much rain as everyone else? I will need a sub to get out of the > > Atlanta area . Cheers, Gardiner > > > > Sent from my iPad > > > > On Jul 11, 2013, at 9:55 AM, shad bell > > wrote: > > > > > > > > > > > > > I am planning on flying the piet up on saturday morning if the runway > > > dries out. we have had 3- 4 inches of rain in the past week. Does > > > anyone know if Barber field is a giant wet sponge at this point? > > > > > > Shad > > > NX92GB > > > -------------------------------------------- > > > On Thu, 7/11/13, > > > skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net) > > > wrote: > > > > > > Subject: RE: Pietenpol-List: Alliance Ohio Fly-in > > > To: > > > pietenpol-list@matronics.com(blockedmailto:pietenpol-list@matronics.com) > > > Date: Thursday, July 11, 2013, 8:39 AM > > > > > > --> Pietenpol-List message posted > > > by: "skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net)" > > > > > > > > > Ed Delancey and I are planning to drive up Friday. That is > > > if the power > > > here comes back on and I can leave Cinda home alone. > > > Skip > > > > > > > > > > > > > [Original Message] > > > > From: Pietflyer1977 > > > > > > > > To: > > > > > > > > Date: 7/10/2013 9:02:11 PM > > > > Subject: Pietenpol-List: Alliance Ohio Fly-in > > > > > > > > > > > "Pietflyer1977" > > > > > > > > > > > Is anyone in the Midwest going to the Barber Airport > > > > > > > fly-in this weekend > > > in Alliance, OH ? Anyone ever go? A good fly-in with a good > > > turn out? Thanks > > > > > > > > > > > > > > > > > > > > > > > Read this topic online here: > > > > > > > > http://forums.matronics.com/viewtopic.php?p=404431#404431(blockedhttp://forums.matronics.com/viewtopic.php?p=404431#404431) > > > > > > > > > > > > > > > > Email Forum - > > > - MATRONICS WEB FORUMS - > > > List Contribution Web Site - > > > -Matt > > > Dralle, List - The --> > > > (blockedhttp://www.matronics.com/Navigator?Pietenpol-List" > > > target="1">http://www.matr &n - &nbs --> > > > http://www.matronics.com/co================ > > > > > > > > > > > > > > > > > w,courier" size="2"> _blank">http://www.matronics.com/contribution UNCLASSIFIED ________________________________ Message 2 _____________________________________ Time: 03:29:46 AM PST US Subject: Re: Pietenpol-List: Re: Logo Design. From: helspersew@aol.com Chris, Wonderful tribute to your Dad. Great airplane. Cool logos/lettering. Can't wait to see'er fly! Dan Helsper Puryear, TN -----Original Message----- From: Chris Rusch Sent: Thu, Jul 11, 2013 9:07 pm Subject: Pietenpol-List: Re: Logo Design. > If your wondering, Bags was my dads nickname and he started this plane in t he mid 70's........ He passed away in 2002 with only the fusalage completed. s o I finished the plane and named it after him. That name is hand painted and th e bird logo is vinyl. -------- NX321LR ON THE FINAL PUSH!! Mitsubishi Powered Read this topic online here: http://forums.matronics.com/viewtopic.php?p=404517#404517 ________________________________ Message 3 _____________________________________ Time: 04:04:39 AM PST US From: Steve Emo Subject: Re: Pietenpol-List: 4 blade prop Look up advance ratio. In addition there is a slip factor where a small diameter high speed prop is better for higher speed plane. Steve On Jul 12, 2013, at 6:27 AM, wrote: > Dears, it was the best definition I've heard for this case until now. I have years working with airplanes and this was the best. > Thank you! > Roberto Serrano, > www.kraussaero.com.br > > -----Mensagem Original----- From: Dortch, Steven D MAJ MIL USA NGB > Sent: Thursday, July 11, 2013 8:55 PM > To: pietenpol-list@matronics.com > Subject: Pietenpol-List: 4 blade prop > > > UNCLASSIFIED > Dan, Love the look. > > Discussion on another list (Beech) talked quite a bit about the value of going from 2 to 3 blades on General Aviation airplanes > > Two blades is more efficient than three blades in all areas, except ground clearance and noise. On most prop planes the prop makes most of the noise, Engine is second. Look at the videos of the electric Sonex E-flight. The plane is almost as noisy as a regular plane. > > One member is an aerodynamics professor. He said it came down to this. The very most efficient prop is a Single, Big, Long Blade turning at slower RPM with great torque. Yes, a single, one side is a blade, the other is like a club. As you add, blades they become smaller bladed and shorter and less efficient. as you get into 3,4 and more blades they nowstart to run in each other's turbulance and the airflow becomes less smooth. Smaller diameter props have to run faster to make the same thrust. Also the Prop becomes more of a gyroscope as blades are added. > > That is why early planes with low horsepower engines, turning slow with big props were somewhat efficient. while early ultralights with fast turning chainsaw engines turning small props make a lot of noise with wasted horsepower. > > Blue Skies, > Steve D > > > On 07/11/13, helspersew@aol.com wrote: >> I'll chop'em up with this. >> >> Dan Helsper >> Puryear, TN >> >> >> -----Original Message----- >> From: John Hofmann >> To: pietenpol-list >> Sent: Thu, Jul 11, 2013 11:12 am >> Subject: Re: Pietenpol-List: Alliance Ohio Fly-in >> >> I am based 60 north of Brodhead. We were in bad shape up until the past weekend. All seems good now and it should be dry here for the next week (according to the forecast). Sunday was the first day I was able to take theRocket out since May, it has been so wet. >> >> The real problem this year will be the mosquitos. The rain has made a real good crop this year. >> >> >> >> John Hofmann >> Vice-President, Information Technology >> The Rees Group, Inc. >> 2424 American Lane >> Madison, WI 53704 >> Phone: 608.443.2468 ext 150 >> Fax: 608.443.2474 >> Email: jhofmann@reesgroupinc.com(blockedmailto:jhofmann@reesgroupinc.com) >> >> >> >> On Jul 11, 2013, at 10:38 AM, airlion2@gmail.com(blockedmailto:airlion2@gmail.com) wrote: >> >> >> > >> > Does anyone know about the field conditions at Brodhead? Have they had > as much rain as everyone else? I will need a sub to get out of the > Atlanta area . Cheers, Gardiner >> > >> > Sent from my iPad >> > >> > On Jul 11, 2013, at 9:55 AM, shad bell > wrote: >> > >> > >> > > >> > > I am planning on flying the piet up on saturday morning if the runway > > dries out. we have had 3- 4 inches of rain in the past week. Does > > anyone know if Barber field is a giant wet sponge at this point? >> > > >> > > Shad >> > > NX92GB >> > > -------------------------------------------- >> > > On Thu, 7/11/13, > > skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net) > > wrote: >> > > >> > > Subject: RE: Pietenpol-List: Alliance Ohio Fly-in >> > > To: > > pietenpol-list@matronics.com(blockedmailto:pietenpol-list@matronics.com) >> > > Date: Thursday, July 11, 2013, 8:39 AM >> > > >> > > --> Pietenpol-List message posted >> > > by: "skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net)" >> > > >> > > >> > > Ed Delancey and I are planning to drive up Friday. That is >> > > if the power >> > > here comes back on and I can leave Cinda home alone. >> > > Skip >> > > >> > > >> > > >> > > > [Original Message] >> > > > From: Pietflyer1977 > > > >> > > > To: > > > >> > > > Date: 7/10/2013 9:02:11 PM >> > > > Subject: Pietenpol-List: Alliance Ohio Fly-in >> > > > >> > > > >> > > "Pietflyer1977" >> > > >> > > > >> > > > Is anyone in the Midwest going to the Barber Airport >> > > > >> > > fly-in this weekend >> > > in Alliance, OH ? Anyone ever go? A good fly-in with a good >> > > turn out? Thanks >> > > >> > > > >> > > > >> > > > >> > > > >> > > > Read this topic online here: >> > > > >> > > > http://forums.matronics.com/viewtopic.php?p=404431#404431(blockedhttp://forums.matronics.com/viewtopic.php?p=404431#404431) >> > > > >> > > >> > > >> > > >> > > Email Forum - >> > > - MATRONICS WEB FORUMS - >> > > List Contribution Web Site - >> > > -Matt >> > > Dralle, List - The --> > > (blockedhttp://www.matronics.com/Navigator?Pietenpol-List" > > target="1">http://www.matr &n - &nbs --> > > http://www.matronics.com/co================ >> > > >> > > >> > > >> > > >> > >> >> >> >> w,courier" size="2"> _blank">http://www.matronics.com/contribution > UNCLASSIFIED > > > ________________________________ Message 4 _____________________________________ Time: 04:26:01 AM PST US Subject: Re: Pietenpol-List: 4 blade prop From: "contato @kraussaero.com.br" Dear Steve, great! Tks again. Serrano Em 12/07/2013 08:07, "Steve Emo" escreveu: > > Look up advance ratio. > > In addition there is a slip factor where a small diameter high speed prop > is better for higher speed plane. > > > Steve > > On Jul 12, 2013, at 6:27 AM, wrote: > > > Dears, it was the best definition I've heard for this case until now. I > have years working with airplanes and this was the best. > > Thank you! > > Roberto Serrano, > > www.kraussaero.com.br > > > > -----Mensagem Original----- From: Dortch, Steven D MAJ MIL USA NGB > > Sent: Thursday, July 11, 2013 8:55 PM > > To: pietenpol-list@matronics.com > > Subject: Pietenpol-List: 4 blade prop > > " > > > > > UNCLASSIFIED > > Dan, Love the look. > > > > Discussion on another list (Beech) talked quite a bit about the value o f > going from 2 to 3 blades on General Aviation airplanes > > > > Two blades is more efficient than three blades in all areas, except > ground clearance and noise. On most prop planes the prop makes most of th e > noise, Engine is second. Look at the videos of the electric Sonex E-fligh t. > The plane is almost as noisy as a regular plane. > > > > One member is an aerodynamics professor. He said it came down to this. > The very most efficient prop is a Single, Big, Long Blade turning at slow er > RPM with great torque. Yes, a single, one side is a blade, the other is > like a club. As you add, blades they become smaller bladed and shorter an d > less efficient. as you get into 3,4 and more blades they nowstart to run in > each other's turbulance and the airflow becomes less smooth. Smaller > diameter props have to run faster to make the same thrust. Also the Prop > becomes more of a gyroscope as blades are added. > > > > That is why early planes with low horsepower engines, turning slow with > big props were somewhat efficient. while early ultralights with fast > turning chainsaw engines turning small props make a lot of noise with > wasted horsepower. > > > > Blue Skies, > > Steve D > > > > > > On 07/11/13, helspersew@aol.com wrote: > >> I'll chop'em up with this. > >> > >> Dan Helsper > >> Puryear, TN > >> > >> > >> -----Original Message----- > >> From: John Hofmann > >> To: pietenpol-list > >> Sent: Thu, Jul 11, 2013 11:12 am > >> Subject: Re: Pietenpol-List: Alliance Ohio Fly-in > >> > >> I am based 60 north of Brodhead. We were in bad shape up until the pas t > weekend. All seems good now and it should be dry here for the next week > (according to the forecast). Sunday was the first day I was able to take > theRocket out since May, it has been so wet. > >> > >> The real problem this year will be the mosquitos. The rain has made a > real good crop this year. > >> > >> > >> > >> John Hofmann > >> Vice-President, Information Technology > >> The Rees Group, Inc. > >> 2424 American Lane > >> Madison, WI 53704 > >> Phone: 608.443.2468 ext 150 > >> Fax: 608.443.2474 > >> Email: jhofmann@reesgroupinc.com( > blockedmailto:jhofmann@reesgroupinc.com) > >> > >> > >> > >> On Jul 11, 2013, at 10:38 AM, airlion2@gmail.com( > blockedmailto:airlion2@gmail.com) wrote: > >> > >> > blockedmailto:airlion2@gmail.com) > >> > > >> > Does anyone know about the field conditions at Brodhead? Have they > had > as much rain as everyone else? I will need a sub to get out of the > > Atlanta area . Cheers, Gardiner > >> > > >> > Sent from my iPad > >> > > >> > On Jul 11, 2013, at 9:55 AM, shad bell > blockedmailto:aviatorbell@yahoo.com)> wrote: > >> > > >> > > aviatorbell@yahoo.com(blockedmailto:aviatorbell@yahoo.com)> > >> > > > >> > > I am planning on flying the piet up on saturday morning if the > runway > > dries out. we have had 3- 4 inches of rain in the past week. > Does > > anyone know if Barber field is a giant wet sponge at this point? > >> > > > >> > > Shad > >> > > NX92GB > >> > > -------------------------------------------- > >> > > On Thu, 7/11/13, > > skipgadd@earthlink.net( > blockedmailto:skipgadd@earthlink.net) > > blockedmailto:skipgadd@earthlink.net)> wrote: > >> > > > >> > > Subject: RE: Pietenpol-List: Alliance Ohio Fly-in > >> > > To: > > pietenpol-list@matronics.com( > blockedmailto:pietenpol-list@matronics.com) > >> > > Date: Thursday, July 11, 2013, 8:39 AM > >> > > > >> > > --> Pietenpol-List message posted > >> > > by: "skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net)" > >> > > > >> > > > >> > > Ed Delancey and I are planning to drive up Friday. That is > >> > > if the power > >> > > here comes back on and I can leave Cinda home alone. > >> > > Skip > >> > > > >> > > > >> > > > >> > > > [Original Message] > >> > > > From: Pietflyer1977 > > > blockedmailto:rob@stoinoff.com)> > >> > > > To: > > > blockedmailto:pietenpol-list@matronics.com)> > >> > > > Date: 7/10/2013 9:02:11 PM > >> > > > Subject: Pietenpol-List: Alliance Ohio Fly-in > >> > > > > >> > > > > >> > > "Pietflyer1977" > >> > > > >> > > > > >> > > > Is anyone in the Midwest going to the Barber Airport > >> > > > > >> > > fly-in this weekend > >> > > in Alliance, OH ? Anyone ever go? A good fly-in with a good > >> > > turn out? Thanks > >> > > > >> > > > > >> > > > > >> > > > > >> > > > > >> > > > Read this topic online here: > >> > > > > >> > > > > http://forums.matronics.com/viewtopic.php?p=404431#404431(blockedhttp:/ /forums.matronics.com/viewtopic.php?p=404431#404431) > >> > > > > >> > > > >> > > > >> > > > >> > > Email Forum - > >> > > - MATRONICS WEB FORUMS - > >> > > List Contribution Web Site - > >> > > -Matt > >> > > Dralle, List - The --> > > (blockedhttp:// > www.matronics.com/Navigator?Pietenpol-List" > > target="1">http://www.m atr&n - &nbs --> > > > http://www.matronics.com/co=============== = > >> > > > >> > > > >> > > > >> > > > >> > > >> > >> > >> > >> w,courier" size="2"> _blank">http://www.matronics.com/contribution > > UNCLASSIFIED > > > > > > > > =========== =========== =========== =========== > > ________________________________ Message 5 _____________________________________ Time: 07:43:56 AM PST US Subject: Pietenpol-List: Upcoming Corvair Colleges From: "kevinpurtee" If you're thinking about using a Corvair then you should strongly consider attending a college. CC26 will be in Mexico, MO 18-20 Sep 13. CC27 will be in Barnwell, SC 8-10 Nov 13. CC28 will be in San Marcos, TX 28 Feb-2 Mar 14. Shelley has made Facebook pages for each event. We're hosting the TX event so CC28's page will be updated frequently. She'll update the other two events as she gets information. You can also contact Zenith Aircraft for information on CC26 & PF Beck for CC27. -------- Kevin "Axel" Purtee Rebuilding NX899KP Austin/San Marcos, TX Read this topic online here: http://forums.matronics.com/viewtopic.php?p=404535#404535 ________________________________ Message 6 _____________________________________ Time: 07:51:15 AM PST US From: "Dortch, Steven D MAJ MIL USA NGB" Subject: Re: Pietenpol-List: 4 blade prop UNCLASSIFIED Yes, The discussion was based on somewhat slow general aviation aircraft. Not 300 MPH screamers but up to 200 MPH plus or minus General aviation planes. Also based on currently availiable props, not on any breakthrough technology. Blue Skies, Steve D On 07/12/13, Steve Emo wrote: > > Look up advance ratio. > > In addition there is a slip factor where a small diameter high speed prop is better for higher speed plane. > > > Steve > > On Jul 12, 2013, at 6:27 AM, wrote: > > > Dears, it was the best definition I've heard for this case until now. I have years working with airplanes and this was the best. > > Thank you! > > Roberto Serrano, > > www.kraussaero.com.br > > > > -----Mensagem Original----- From: Dortch, Steven D MAJ MIL USA NGB > > Sent: Thursday, July 11, 2013 8:55 PM > > To: pietenpol-list@matronics.com > > Subject: Pietenpol-List: 4 blade prop > > > > > > UNCLASSIFIED > > Dan, Love the look. > > > > Discussion on another list (Beech) talked quite a bit about the value of going from 2 to 3 blades on General Aviation airplanes > > > > Two blades is more efficient than three blades in all areas, except ground clearance and noise. On most prop planes the prop makes most of the noise, Engine is second. Look at the videos of the electric Sonex E-flight. The plane is almost as noisy as a regular plane. > > > > One member is an aerodynamics professor. He said it came down to this. The very most efficient prop is a Single, Big, Long Blade turning at slower RPM with great torque. Yes, a single, one side is a blade, the other is like a club. As you add, blades they become smaller bladed and shorter and less efficient. as you get into 3,4 and more blades they nowstart to run in each other's turbulance and the airflow becomes less smooth. Smaller diameter props have to run faster to make the same thrust. Also the Prop becomes more of a gyroscope as blades are added. > > > > That is why early planes with low horsepower engines, turning slow with big props were somewhat efficient. while early ultralights with fast turning chainsaw engines turning small props make a lot of noise with wasted horsepower. > > > > Blue Skies, > > Steve D > > > > > > On 07/11/13, helspersew@aol.com wrote: > >> I'll chop'em up with this. > >> > >> Dan Helsper > >> Puryear, TN > >> > >> > >> -----Original Message----- > >> From: John Hofmann > >> To: pietenpol-list > >> Sent: Thu, Jul 11, 2013 11:12 am > >> Subject: Re: Pietenpol-List: Alliance Ohio Fly-in > >> > >> I am based 60 north of Brodhead. We were in bad shape up until the past weekend. All seems good now and it should be dry here for the next week (according to the forecast). Sunday was the first day I was able to take theRocket out since May, it has been so wet. > >> > >> The real problem this year will be the mosquitos. The rain has made a real good crop this year. > >> > >> > >> > >> John Hofmann > >> Vice-President, Information Technology > >> The Rees Group, Inc. > >> 2424 American Lane > >> Madison, WI 53704 > >> Phone: 608.443.2468 ext 150 > >> Fax: 608.443.2474 > >> Email: jhofmann@reesgroupinc.com(blockedmailto:jhofmann@reesgroupinc.com(javascript:main.compose()) > >> > >> > >> > >> On Jul 11, 2013, at 10:38 AM, airlion2@gmail.com(blockedmailto:airlion2@gmail.com(javascript:main.compose()) wrote: > >> > >> > >> > > >> > Does anyone know about the field conditions at Brodhead? Have they had > as much rain as everyone else? I will need a sub to get out of the > Atlanta area . Cheers, Gardiner > >> > > >> > Sent from my iPad > >> > > >> > On Jul 11, 2013, at 9:55 AM, shad bell > wrote: > >> > > >> > > >> > > > >> > > I am planning on flying the piet up on saturday morning if the runway > > dries out. we have had 3- 4 inches of rain in the past week. Does > > anyone know if Barber field is a giant wet sponge at this point? > >> > > > >> > > Shad > >> > > NX92GB > >> > > -------------------------------------------- > >> > > On Thu, 7/11/13, > > skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net(javascript:main.compose()) > > wrote: > >> > > > >> > > Subject: RE: Pietenpol-List: Alliance Ohio Fly-in > >> > > To: > > pietenpol-list@matronics.com(blockedmailto:pietenpol-list@matronics.com(javascript:main.compose()) > >> > > Date: Thursday, July 11, 2013, 8:39 AM > >> > > > >> > > --> Pietenpol-List message posted > >> > > by: "skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net(javascript:main.compose())" > >> > > > >> > > > >> > > Ed Delancey and I are planning to drive up Friday. That is > >> > > if the power > >> > > here comes back on and I can leave Cinda home alone. > >> > > Skip > >> > > > >> > > > >> > > > >> > > > [Original Message] > >> > > > From: Pietflyer1977 > > > > >> > > > To: > > > > >> > > > Date: 7/10/2013 9:02:11 PM > >> > > > Subject: Pietenpol-List: Alliance Ohio Fly-in > >> > > > > >> > > > > >> > > "Pietflyer1977" > >> > > > >> > > > > >> > > > Is anyone in the Midwest going to the Barber Airport > >> > > > > >> > > fly-in this weekend > >> > > in Alliance, OH ? Anyone ever go? A good fly-in with a good > >> > > turn out? Thanks > >> > > > >> > > > > >> > > > > >> > > > > >> > > > > >> > > > Read this topic online here: > >> > > > > >> > > > http://forums.matronics.com/viewtopic.php?p=404431#404431(blockedhttp://forums.matronics.com/viewtopic.php?p=404431#404431) > >> > > > > >> > > > >> > > > >> > > > >> > > Email Forum - > >> > > - MATRONICS WEB FORUMS - > >> > > List Contribution Web Site - > >> > > -Matt > >> > > Dralle, List - The --> > > (blockedhttp://www.matronics.com/Navigator?Pietenpol-List" > > target="1">http://www.matr &n - &nbs --> > > http://www.matronics.com/co================ > >> > > > >> > > > >> > > > >> > > > >> > > >> > >> > >> > >> w,courier" size="2"> _blank">http://www.matronics.com/contribution > > UNCLASSIFIED > > > > > > > > UNCLASSIFIED ________________________________ Message 7 _____________________________________ Time: 10:57:55 AM PST US Subject: Re: Pietenpol-List: 4 blade prop From: helspersew@aol.com That's where I have the advantage....the breakthrough technology I am using . The way I figure it, I'll be able to go twice as fast with the two extra blades. Dan Helsper Puryear, TN -----Original Message----- From: Dortch, Steven D MAJ MIL USA NGB Sent: Fri, Jul 12, 2013 9:51 am Subject: Re: Pietenpol-List: 4 blade prop UNCLASSIFIED Yes, The discussion was based on somewhat slow general aviation aircraft. Not 300 MPH screamers but up to 200 MPH plus or minus General aviation planes. Also based on currently availiable props, not on any breakthrough technology. Blue Skies, Steve D On 07/12/13, Steve Emo wrote: > > Look up advance ratio. > > In addition there is a slip factor where a small diameter high speed prop is better for higher speed plane. > > > Steve > > On Jul 12, 2013, at 6:27 AM, wrote: > > > Dears, it was the best definition I've heard for this case until now. I have years working with airplanes and this was the best. > > Thank you! > > Roberto Serrano, > > www.kraussaero.com.br > > > > -----Mensagem Original----- From: Dortch, Steven D MAJ MIL USA NGB > > Sent: Thursday, July 11, 2013 8:55 PM > > To: pietenpol-list@matronics.com > > Subject: Pietenpol-List: 4 blade prop > > " > > > > UNCLASSIFIED > > Dan, Love the look. > > > > Discussion on another list (Beech) talked quite a bit about the value o f going from 2 to 3 blades on General Aviation airplanes > > > > Two blades is more efficient than three blades in all areas, except gro und clearance and noise. On most prop planes the prop makes most of the noise, Engine is second. Look at the videos of the electric Sonex E-flight. The pl ane is almost as noisy as a regular plane. > > > > One member is an aerodynamics professor. He said it came down to this. The very most efficient prop is a Single, Big, Long Blade turning at slower RPM with great torque. Yes, a single, one side is a blade, the other is like a club. As you add, blades they become smaller bladed and shorter and less efficient. as you get into 3,4 and more blades they nowstart to run in each other's turbu lance and the airflow becomes less smooth. Smaller diameter props have to run fas ter to make the same thrust. Also the Prop becomes more of a gyroscope as blade s are added. > > > > That is why early planes with low horsepower engines, turning slow with big props were somewhat efficient. while early ultralights with fast turning chainsaw engines turning small props make a lot of noise with wasted horsep ower. > > > > Blue Skies, > > Steve D > > > > > > On 07/11/13, helspersew@aol.com wrote: > >> I'll chop'em up with this. > >> > >> Dan Helsper > >> Puryear, TN > >> > >> > >> -----Original Message----- > >> From: John Hofmann > >> To: pietenpol-list > >> Sent: Thu, Jul 11, 2013 11:12 am > >> Subject: Re: Pietenpol-List: Alliance Ohio Fly-in > >> > >> I am based 60 north of Brodhead. We were in bad shape up until the pas t weekend. All seems good now and it should be dry here for the next week (according to the forecast). Sunday was the first day I was able to take theRocket out since May, it has been so wet. > >> > >> The real problem this year will be the mosquitos. The rain has made a real good crop this year. > >> > >> > >> > >> John Hofmann > >> Vice-President, Information Technology > >> The Rees Group, Inc. > >> 2424 American Lane > >> Madison, WI 53704 > >> Phone: 608.443.2468 ext 150 > >> Fax: 608.443.2474 > >> Email: jhofmann@reesgroupinc.com(blockedmailto:jhofmann@reesgroupinc.c om(javascript:main.compose()) > >> > >> > >> > >> On Jul 11, 2013, at 10:38 AM, airlion2@gmail.com(blockedmailto:airlion 2@gmail.com(javascript:main.compose()) wrote: > >> > >> ilto:airlion2@gmail.com(javascript:main.compose()) > >> > > >> > Does anyone know about the field conditions at Brodhead? Have they h ad > as much rain as everyone else? I will need a sub to get out of the > Atlant a area . Cheers, Gardiner > >> > > >> > Sent from my iPad > >> > > >> > On Jul 11, 2013, at 9:55 AM, shad bell > wrote: > >> > > >> > > >> > > > >> > > I am planning on flying the piet up on saturday morning if the run way > > dries out. we have had 3- 4 inches of rain in the past week. Does > > any one know if Barber field is a giant wet sponge at this point? > >> > > > >> > > Shad > >> > > NX92GB > >> > > -------------------------------------------- > >> > > On Thu, 7/11/13, > > skipgadd@earthlink.net(blockedmailto:skipgadd @earthlink.net(javascript:main.compose()) > > wrote: > >> > > > >> > > Subject: RE: Pietenpol-List: Alliance Ohio Fly-in > >> > > To: > > pietenpol-list@matronics.com(blockedmailto:pietenpol-list@ matronics.com(javascript:main.compose()) > >> > > Date: Thursday, July 11, 2013, 8:39 AM > >> > > > >> > > --> Pietenpol-List message posted > >> > > by: "skipgadd@earthlink.net(blockedmailto:skipgadd@earthlink.net(j avascript:main.compose())" > >> > > > >> > > > >> > > Ed Delancey and I are planning to drive up Friday. That is > >> > > if the power > >> > > here comes back on and I can leave Cinda home alone. > >> > > Skip > >> > > > >> > > > >> > > > >> > > > [Original Message] > >> > > > From: Pietflyer1977 > > > > >> > > > To: > > > > >> > > > Date: 7/10/2013 9:02:11 PM > >> > > > Subject: Pietenpol-List: Alliance Ohio Fly-in > >> > > > > >> > > > > >> > > "Pietflyer1977" > >> > > > >> > > > > >> > > > Is anyone in the Midwest going to the Barber Airport > >> > > > > >> > > fly-in this weekend > >> > > in Alliance, OH ? Anyone ever go? A good fly-in with a good > >> > > turn out? Thanks > >> > > > >> > > > > >> > > > > >> > > > > >> > > > > >> > > > Read this topic online here: > >> > > > > >> > > > http://forums.matronics.com/viewtopic.php?p=404431#404431(bloc kedhttp://forums.matronics.com/viewtopic.php?p=404431#404431) > >> > > > > >> > > > >> > > > >> > > > >> > > Email Forum - > >> > > - MATRONICS WEB FORUMS - > >> > > List Contribution Web Site - > >> > > -Matt > >> > > Dralle, List - The --> > > (blockedhttp://www.matronics.com/Naviga tor?Pietenpol-List" > > target="1">http://www.matr &n - &nbs --> > > http://www.matronics.com /co================ > >> > > > >> > > > >> > > > >> > > > >> > > >> > >> > >> > >> w,courier" size="2"> _blank">http://www.matronics.com/contribution > > UNCLASSIFIED > > > > > > > > UNCLASSIFIED ________________________________ Message 8 _____________________________________ Time: 12:59:53 PM PST US Subject: Pietenpol-List: Re: 4 blade prop From: "womenfly2" Look up Everel Propellers. ... as stated above hence the big paddle blade prop on my Piet. Cheers, KAP -------- Read this topic online here: http://forums.matronics.com/viewtopic.php?p=404552#404552 ________________________________ Message 9 _____________________________________ Time: 02:23:11 PM PST US Subject: Pietenpol-List: Re: Logo Design. From: "K5YAC" That is awesome! Really love the colors and such. Hate to say it so early in the process, but I've considered OD green and black as well... much of my metal work thus far is flat black... just don't really know how I'd like to finish up at this point. A bit premature for me, but your airplane looks way cool. Right out of the Wacky Races, and I mean that in the most positive way! -------- Mark Chouinard Wings, Center Section and Empannage and Fuse framed up - Working on Landing Gear Read this topic online here: http://forums.matronics.com/viewtopic.php?p=404559#404559 ________________________________ Message 10 ____________________________________ Time: 02:40:29 PM PST US From: brian.e.jardine@l-3com.com Subject: Pietenpol-List: O-200 For sale This came up in the local classified today, just forwarding the ad on. I have no affiliation with engine or seller. Brian SLC-UT http://www.ksl.com/index.php?nid=218&ad=25972539&cat=151&lpid=&search=&a d_cid=3 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pietenpol-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pietenpol-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/pietenpol-list Browse Digests http://www.matronics.com/digest/pietenpol-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.