---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Tue 11/22/11: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:46 AM - Re: Aluminum head (helspersew@aol.com) 2. 05:18 AM - Re: Aluminum Head (womenfly2) 3. 05:56 AM - Mountain Piet Mending Update (Greg Bacon) 4. 06:06 AM - Re: Aluminum Head (Brett Phillips) 5. 07:04 AM - Re: Aluminum Head (womenfly2) 6. 04:08 PM - Re: Re: Aluminum Head (helspersew@aol.com) ________________________________ Message 1 _____________________________________ Time: 03:46:37 AM PST US Subject: Re: Pietenpol-List: Aluminum head From: helspersew@aol.com Hey Larry- Not so fast. Mine is nose heavy with the Aluminum head. Dan Helsper Puryear, TN -----Original Message----- From: Lawrence Williams Sent: Mon, Nov 21, 2011 7:56 pm Subject: Pietenpol-List: Aluminum head Fred- why in the world would you want an aluminum head? Get a good iron head (the heavier the better) and you won't be perpetually fighting a tail-heavy aer oplane. Larry - -= -- Please Support Your Lists This Month -- -= (And Get Some AWESOME FREE Gifts!) - -= November is the Annual List Fund Raiser. Click on -= the Contribution link below to find out more about -= this year's Terrific Free Incentive Gifts provided -= by: -= -= * AeroElectric www.aeroelectric.com -= * The Builder's Bookstore www.buildersbooks.com -= * HomebuiltHELP www.homebuilthelp.com - -= List Contribution Web Site: - -= --> http://www.matronics.com/contribution - -= Thank you for your generous support! - -= -Matt Dralle, List Admin. - -======================== -= - The Pietenpol-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: - -= --> http://www.matronics.com/Navigator?Pietenpol-List - -======================== -= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! - -= --> http://forums.matronics.com - -======================== -= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -======================== ________________________________ Message 2 _____________________________________ Time: 05:18:40 AM PST US Subject: Pietenpol-List: Re: Aluminum Head From: "womenfly2" helspersew(at)aol.com wrote: > How do you know it was in fact 59 HP? 82 inches seems very long. What was the ground clearance? > > Dan Helsper > Puryear, TN > > > > -- Calculated with actual numbers from flight testing. Wheels 18" rims with tyres, 23" OD. Fuselage was from the Flying & Glider Manual and the deepest dimension mid cockpits is 24" per plans. Prop had 6" ground clearance with stretched bungees with top fuselage longeron leveled. -------- Read this topic online here: http://forums.matronics.com/viewtopic.php?p=358793#358793 ________________________________ Message 3 _____________________________________ Time: 05:56:18 AM PST US Subject: Pietenpol-List: Mountain Piet Mending Update From: Greg Bacon Epoxy varnish is completed on both the new center section and wing. Covering is next. Also, a few days ago, a local A&P mechanic stopped by to inspect my work prior to covering. He took a bunch of photos and said it looked "marvelous", so I'm feeling a lot better about that first flight. After final assembly, he will check it out again and issue a ferry permit. I'll fly it to his shop for it's first annual in 7 years. My goal is to get this done this Winter, weather permitting. I'm still in need of 3 yards of 3 inch bias cut tape. If anyone has some, please contact me off line at gbacon67@gmail.com so we can work out a purchase/trade. Thanks Greg Bacon Prairie Home, MO ________________________________ Message 4 _____________________________________ Time: 06:06:41 AM PST US Subject: Pietenpol-List: Re: Aluminum Head From: "Brett Phillips" Larry has a good point! If your airplane is already tail heavy, a good cast iron head would be a much better fix than adding lead to the nose. The iron heads are thought to be more stable and resistant to warping too. Mr Pietenpol's first Air Campers were all flown with the stock iron heads. It wasn't until the early-mid thirties that he began recommending the high compression heads (which happened to be aluminum). Regarding propellers: The propeller Mr Pietenpol recommended for the Model A in the Flying and Glider manual article was a WWI surplus item intended for use on the 28 HP Lawrance powered Breese Penguin like this one: http://www.woodenpropeller.com/LangLawrance.html Note that it measures 2000mm x 1000mm (78.74 x 39.37). Mr Pietenpol later revised his recommendation to a smaller diameter and steeper pitch. I wonder if this was for economic reasons (no more cheap surplus props), or performance reasons? I know, more questions than answers.... Brett Phillips Strasburg, VA NX311GP Read this topic online here: http://forums.matronics.com/viewtopic.php?p=358799#358799 ________________________________ Message 5 _____________________________________ Time: 07:04:34 AM PST US Subject: Pietenpol-List: Re: Aluminum Head From: "womenfly2" .... if using an aluminum head on the Model-A, best to lengthen your motor mount to balance her. Heavy aft CG depends more on the pilots weight in rear cockpit. You want to be more in the torque curve on the Model-A, 1600-1800 RPM. -------- Read this topic online here: http://forums.matronics.com/viewtopic.php?p=358810#358810 ________________________________ Message 6 _____________________________________ Time: 04:08:08 PM PST US Subject: Re: Pietenpol-List: Re: Aluminum Head From: helspersew@aol.com That 6" ground clearance is too close for comfort. I think Bingelis recomme nds 9 or 11, can't remember. Please explain the formula for flight-testing H.P. calculation. Dan Helsper Puryear, TN -----Original Message----- From: womenfly2 Sent: Tue, Nov 22, 2011 7:18 am Subject: Pietenpol-List: Re: Aluminum Head elspersew(at)aol.com wrote: How do you know it was in fact 59 HP? 82 inches seems very long. What was the round clearance? Dan Helsper Puryear, TN -- alculated with actual numbers from flight testing. Wheels 18" rims with tyr es, 3" OD. Fuselage was from the Flying & Glider Manual and the deepest dimensi on id cockpits is 24" per plans. Prop had 6" ground clearance with stretched ungees with top fuselage longeron leveled. -------- ead this topic online here: http://forums.matronics.com/viewtopic.php?p=358793#358793 - -= -- Please Support Your Lists This Month -- -= (And Get Some AWESOME FREE Gifts!) - -= November is the Annual List Fund Raiser. Click on -= the Contribution link below to find out more about -= this year's Terrific Free Incentive Gifts provided -= by: -= -= * AeroElectric www.aeroelectric.com -= * The Builder's Bookstore www.buildersbooks.com -= * HomebuiltHELP www.homebuilthelp.com - -= List Contribution Web Site: - -= --> http://www.matronics.com/contribution - -= Thank you for your generous support! - -= -Matt Dralle, List Admin. - -======================== -= - The Pietenpol-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: - -= --> http://www.matronics.com/Navigator?Pietenpol-List - -======================== -= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! - -= --> http://forums.matronics.com - -======================== -= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -======================== ------------------------------------------------------------------------------------- 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.