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Pietenpol-List: Didn't quite straighten the hook...
Posted: Fri Nov 16, 2012 11:11 am
by matronics
Original Posted By: Gene Rambo
During the last two years, I've made numerous cross countries using the iPad withForeFlight. I'm fact, during the free 30 day trial, a buddy and I flew inthe Diamond DA20 I use, and compared ForeFlight against the Garmin 430 in thepanel. Our 2 hr flight at various altitudes showed us that the variation in groundspeed between the two devices was +/- 0.5kts, while course variation was+/- 1 degree. What's not to like with these numbers?Due to the arcane complexity of the Garmin, i.e., knobs, buttons, pages, etc.,the Garmin is very easy to forget how to use if you make a cross country every3 to 6 weeks. When I'm using flight following coming back into Class B airspace,ease of use and robust functionality mean a lot to me. Another considerationis that it's in the plane; not at your desk or in your hands while you'reat home. You can view the online videos that ForeFlight has produced to quicklyfamiliarize yourself with the product, without the pressure of ATC's demandsand directives. Once airborne, you're very familiar with the use of the device,and how to access all of it's functions.ForeFlight, with it's intuitive method of simply touching some very easy to remembericons, of which there are only 8 or so, lets you quickly get to the itemyou're looking for. Not so with the Garmin.When you upgrade after the trial period, and log onto your iTunes account, an addedbenefit is that iTunes automatically adds ForeFlight to your iPhone. For my $75 bucks a year, I'll never buy another sectional again. Never again needto race to an FBO prior to closing to get a sectional for a 5:30 am departure... Oh, and one last item, the battery life on the iPad 2 is over 10 hours.In 10+ flights this has performed flawlessly.Just my $0.02.--------Tom KreinerRead this topic online here:
http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Didn't quite straighten the hook...
Posted: Fri Nov 16, 2012 12:50 pm
by matronics
Original Posted By: Max Hegler
Ok, for everyone who has shown so much interest in my engine run, I just did myfirst full-power run up with the "BH Pietenpol Official Fish Scale"The results were....It turned up 1980rpm, and the scale read 285lbs!Don't know what this tells us other than a propeller comparison with other ModelA Piets. I need to get home and look up Mr Pietenpol's recommended static rpm,I can't remember the number. My prop is a Cloudcars scimitar 40 pitch, 76diameter. Gene Rambo________________________________________________________________________________
Re: Pietenpol-List: Didn't quite straighten the hook...
Posted: Fri Nov 16, 2012 5:35 pm
by matronics
Original Posted By: Gene Rambo
Gene,Your airplane will take-off and fly, that is a certainty with these results. Congratulations !!!!!!-----Original Message-----
Re: Pietenpol-List: Didn't quite straighten the hook...
Posted: Fri Nov 16, 2012 7:06 pm
by matronics
Original Posted By:> Gene Rambo
Lol, wasn't worried whether it would fly, curious whether I was in line with other folks. Might be turning a little high, surprising with a 40P, we'll see next spring how it flys. I'll try the scale thing again after running a bit more unless someone else needs the "official" scale!!Gene RamboOn Nov 16, 2012, at 6:35 PM, helspersew(at)aol.com wrote:> Gene,> > Your airplane will take-off and fly, that is a certainty with these results. Congratulations !!!!!!> > > -----Original Message-----
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 12:36 pm
by matronics
Original Posted By: Gene Rambo
Cool info..three model A's all with slightly different props..Dan's 76X46 and 260 lbs of thrustMine 76X42 275 lbsGene's 76X40 285 lbsGood example of lower pitch giving more climb thrust...Mr Pietenpol liked to turn the engine slower for wear but i wonder what you guysconsider as maximum rpm on the A..with a 76 inch prop i figured 2500 rpm still had the tip speed under 75% the speedof sound if i remember my math... of course fuel consumption would be highertoo if it would even turn that fastJeffwaiting on the DARRead this topic online here:
http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 12:51 pm
by matronics
Original Posted By: "bender"
What were the Rpms at these pulls?? Know mine was 1980Gene RamboOn Nov 17, 2012, at 1:36 PM, "bender" wrote:> > Cool info..> > three model A's all with slightly different props..> > Dan's 76X46 and 260 lbs of thrust> Mine 76X42 275 lbs> Gene's 76X40 285 lbs> > Good example of lower pitch giving more climb thrust...> Mr Pietenpol liked to turn the engine slower for wear but i wonder what you guysconsider as maximum rpm on the A..> > with a 76 inch prop i figured 2500 rpm still had the tip speed under 75% thespeed of sound if i remember my math... of course fuel consumption would be highertoo if it would even turn that fast> > Jeff> waiting on the DAR> > > > > Read this topic online here:> >
http://forums.matronics.com/viewtopic.p ... 170#388170> > > > > > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: Didn't quite straighten the hook...
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 3:51 pm
by matronics
Original Posted By: Gene Rambo
76X42 was turning 1750 rpm per my 1930 moth tach and showed 275 lbs of fish scalethrust jeffRead this topic online here:
http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 4:21 pm
by matronics
Original Posted By: "bender"
So, 2" of pitch reduced rpm by 200? My old Jones tach is inaccurate, so I gotthe 1980 from an electronic strobe-type tach checker. Wish we had definite comparablenumbers. Gene RamboOn Nov 17, 2012, at 4:51 PM, "bender" wrote:> > 76X42 was turning 1750 rpm per my 1930 moth tach and showed 275 lbs of fish scalethrust > > jeff> > > > > Read this topic online here:> >
http://forums.matronics.com/viewtopic.p ... 177#388177> > > > > > > > > > > ________________________________________________________________________________Subject: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 4:53 pm
by matronics
Original Posted By: "Brett Phillips"
i could hook up an electric tach.. and see how close it isjeffRead this topic online here:
http://forums.matronics.com/viewtopic.p ... __________
RE: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 5:33 pm
by matronics
Original Posted By: owner-pietenpol-list-server(at)matronics.com
I agree! This is an important topic. I'd really love to see what thedifference is between a 76 incher and say a 79 or 80 inch prop with the samepitch and blade design. With the A's torque, I think it would handle alarger prop well, as long as you have enough ground clearance. Gene: Ihave an 80 x 34 Price prop. Want to play with it some time?Brett PhillipsWorking on Model B carbs in Strasburg, VA...-----Original Message-----
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 5:44 pm
by matronics
Original Posted By: Gene Rambo
Why not just use a tach check so we know its accurate? Electric tach may not be.Gene RamboOn Nov 17, 2012, at 5:53 PM, "bender" wrote:> > i could hook up an electric tach.. and see how close it is> > jeff> > > > > Read this topic online here:> >
http://forums.matronics.com/viewtopic.p ... 182#388182> > > > > > > > > > > ________________________________________________________________________________Subject: Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 6:10 pm
by matronics
Original Posted By:> owner-pietenpol-list-server(at)matronics.com
I guess it is interesting. We know they will fly, I'm not sure we can ever getany meaningful comparison, some have straight props, some scimitar ... Buildingthe database....Gene RamboOn Nov 17, 2012, at 6:33 PM, "Brett Phillips" wrote:> > I agree! This is an important topic. I'd really love to see what the> difference is between a 76 incher and say a 79 or 80 inch prop with the same> pitch and blade design. With the A's torque, I think it would handle a> larger prop well, as long as you have enough ground clearance. Gene: I> have an 80 x 34 Price prop. Want to play with it some time?> > Brett Phillips> Working on Model B carbs in Strasburg, VA...> > -----Original Message-----
> Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 7:13 pm
by matronics
Original Posted By: Dave Millikan
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 7:33 pm
by matronics
Original Posted By: Ryan Mueller
Subject: Re: Pietenpol-List: Re: Didn't quite straighten the hook...
RE: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 7:40 pm
by matronics
Original Posted By: owner-pietenpol-list-server(at)matronics.com
He was on this email chain earlier today. Dan doesn't like everyone havinghis email, so keep this to yourself: helspersew(at)aol.com Gary BootheNX308MB
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sat Nov 17, 2012 10:44 pm
by matronics
Original Posted By: Gary Boothe
HEY! The 260 lbs Official Fish-Scale thrust for N929DH was @ 1860 RPM (electronic strobe-type tach), just for Y'all's information. The infamous prop-carving CD you are referring to is available at multiple locations.....Aircraftspruce.com and
www.actechbooks.com Supply is limited......act fast....Dan HelsperPuryear, TN-----Original Message-----
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sun Nov 18, 2012 6:10 am
by matronics
Original Posted By:> owner-pietenpol-list-server(at)matronics.com
I guess it is interesting. We know they will fly, I'm not sure we can ever get any meaningful comparison, some have straight props, some scimitar ...- Building the database....Gene RamboOn Nov 17, 2012, at 6:33 PM, "Brett Phillips" wrote:net>> > I agree!- This is an important topic.- I'd really love to see what the> difference is between a 76 incher and say a 79 or 80 inch prop with the same> pitch and blade design.- With the A's torque, I think it would handle a> larger prop well, as long as you have enough ground clearance.- Gene:- I> have an 80 x 34 Price prop.- Want to play with it some time?> > Brett Phillips> Working on Model B carbs in Strasburg, VA...> > -----Original Message-----
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sun Nov 18, 2012 6:10 am
by matronics
Original Posted By:> owner-pietenpol-list-server(at)matronics.com
>I guess it is interesting. We know they will fly, I'm not sure we can everget any meaningful comparison, some have straight props, some scimitar ...Building the database....Gene RamboOn Nov 17, 2012, at 6:33 PM, "Brett Phillips" >wrote: >> > I agree! This is an important topic. I'd really love to see what the> difference is between a 76 incher and say a 79 or 80 inch prop with thesame> pitch and blade design. With the A's torque, I think it would handle a> larger prop well, as long as you have enough ground clearance. Gene: I> have an 80 x 34 Price prop. Want to play with it some time?> > Brett Phillips> Working on Model B carbs in Strasburg, VA...> > -----Original Message-----
Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Sun Nov 18, 2012 6:10 am
by matronics
Original Posted By:> owner-pietenpol-list-server(at)matronics.com
I guess it is interesting. We know they will fly, I'm not sure we can ever get any meaningful comparison, some have straight props, some scimitar ... Building the database....Gene RamboOn Nov 17, 2012, at 6:33 PM, "Brett Phillips" wrote:net>> > I agree! This is an important topic. I'd really love to see what the> difference is between a 76 incher and say a 79 or 80 inch prop with the same> pitch and blade design. With the A's torque, I think it would handle a> larger prop well, as long as you have enough ground clearance. Gene: I> have an 80 x 34 Price prop. Want to play with it some time?> > Brett Phillips> Working on Model B carbs in Strasburg, VA...> > -----Original Message-----
Pietenpol-List: Re: composite cooling eyebrows
Posted: Sun Nov 18, 2012 6:39 am
by matronics
Original Posted By: "echobravo4"
on ebay:
http://www.ebay.com/itm/Piper-J3-Cub-L4 ... xp=mtrRead this topic online here:
http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: composite cooling eyebrows
Posted: Sun Nov 18, 2012 7:13 am
by matronics
Original Posted By: "Douwe Blumberg"
Won't be able to tellafter they are painted!--------Earl BrownI may not have gone where I intended to go, but I think I have ended up where Iintended to be.Read this topic online here:
http://forums.matronics.com/viewtopic.p ... __________
Re: Pietenpol-List: Vi's Piet
Posted: Sun Nov 18, 2012 8:39 am
by matronics
Original Posted By: Perry
Hey,What ever happened to Vi Kapler's Ford Piet he finished a couple years ago.He showed it to me two or three years ago and I haven't heard anythingsince.Anyone know?Douwe________________________________________________________________________________Date: Sun, 18 Nov 2012 08:56:26 -0600Subject: Re: Pietenpol-List: Vi's Piet
Re: Pietenpol-List: Didn't quite straighten the hook...
Posted: Fri Apr 28, 2017 9:37 pm
by matronics
Original Posted By: Ryan Mueller
> Subject: Pietenpol-List: Re: iPads=2C iPhones=2C iDunnos....> To: pietenpol-list(at)matronics.com> > > > Just a question for those of you experimenting with iPads and > > smartphones.. I'm guessing that you have a 12-volt battery source > > to keep the device charged. I have an Android phone=2C and am > > thinking about an iPad=2C probably an older one off eBay=2C but > > wondered about the internal battery life. I know when I use the > > Android for GPS nav in the car=2C it kills it pretty quickly unless > > it's plugged into a car charger. > > > > That said=2C I navigated to Brodhead in 2011 just with trip-tics and > > pilotage=2C and it was a lot of fun. But the weather was perfect and > > I didn't have to deviate from the planned course line at all. This > > past year=2C with all the weather in the midwest=2C my track to > > Brodhead looked like a snake. I was glad to have had an old Garmin > > 90 with me. Folded charts are a disaster in a Piet cockpit. > > > > I've had flashbacks to Jimmy Stewart in "The Spirit of St. Louis" > > flying low and yelling "Which way to Ireland???"> > > > Matt Paxton> ============================================> > > ________________________________________________________________________________Date: Fri, 16 Nov 2012 13:57:44 -0600Subject: Re: Pietenpol-List: Didn't quite straighten the hook...
> Re: Pietenpol-List: Re: Didn't quite straighten the hook...
Posted: Fri Apr 28, 2017 9:37 pm
by matronics
Original Posted By:> >
owner-pietenpol-list-server@matronics.com
>> >>> I guess it is interesting. We know they will fly, I'm not sure we can ever> get any meaningful comparison, some have straight props, some scimitar ...> Building the database....>> Gene Rambo>> On Nov 17, 2012, at 6:33 PM, "Brett Phillips" >> wrote:>>
bphillip@shentel.net> >> >> > I agree! This is an important topic. I'd really love to see what the> > difference is between a 76 incher and say a 79 or 80 inch prop with the> same> > pitch and blade design. With the A's torque, I think it would handle a> > larger prop well, as long as you have enough ground clearance. Gene: I> > have an 80 x 34 Price prop. Want to play with it some time?> >> > Brett Phillips> > Working on Model B carbs in Strasburg, VA...> >> > -----Original Message-----