Porterfield Airplane Club

Keep the Skinny Birds Flying Safely

Mark Shayne
  • Male
  • Arlington, WA
  • United States

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  • Matt Haines
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  • Steve Sharpe

Mark Shayne's Discussions

A 65–8 taper crank vs flanged crank

Hello, our Porterfield came out of the factory as an LP 65 (Lycoming engine) During the restoration, it was re-powered with a Continental A65–8 with a tapered crankshaft. The new airworthiness…Continue

Started Apr 10

Defense Plant Corporation
4 Replies

Greetings fellow Porterfield admirers. Back in March, Andy posted about an LP-65 on Barnstormers. The ad called it a "warbird" because it was transferred to the Defense Plant Corporation (DPC) in…Continue

Started this discussion. Last reply by Brett Lovett Jun 25, 2024.

Defense Plant Corporation

No Description

Started Apr 28, 2024

Trim “jack screw” lube
2 Replies

Any advice for lubricating the  threaded portion of the trim adjustment under the pilots seat?  My A&P suggested silicone spray lube as it is dry and wouldn’t attract any contaminants like LPS3…Continue

Started this discussion. Last reply by Mark Shayne Apr 3, 2024.

 

Mark Shayne's Page

Latest Activity

Mark Shayne posted a discussion

A 65–8 taper crank vs flanged crank

Hello, our Porterfield came out of the factory as an LP 65 (Lycoming engine) During the restoration, it was re-powered with a Continental A65–8 with a tapered crankshaft. The new airworthiness certificate was signed off by an FAA representative with the continental engine installed. (previous airworthiness certificate was lost). I have an opportunity to purchase a relatively low time A65-8F with a flanged crankshaft. In the type certificate data sheet, it doesn’t show the F model as approved…See More
Apr 10
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Mark Shayne commented on Gary Baca's photo
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"That’s a cool hat, Gary! Pretty sure you could sell that hat to other Porter fielders. Of course there’s not too many of us…"
Apr 10
Steve Ahrens replied to Mark Shayne's discussion Propeller for CP 65
"Thank you for the update on this Mark. I also have an A65 running a wood 72/42 prop and noted in some old literature that it called for a 72/44. I’m in the process of selecting a new prop and concerned about climb performance with a 44,…"
Dec 31, 2024
Lance Fisher replied to Mark Shayne's discussion Altimiter
"I put a small arrow (actually more like an inverted 'V') on the panel close to the altimeter bezel that points to the barometric pressure on the altimeter dial.   This is only accurate to around 0.1 or 0.05 inHg but given the…"
Aug 20, 2024
Mark Shayne posted photos
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Jun 29, 2024
Steve Sharpe and Mark Shayne are now friends
Jun 28, 2024
Brett Lovett replied to Mark Shayne's discussion Defense Plant Corporation
"Oh, and troop gliders were hardly considered obsolete on June 7th, 1944.  They were used extensively as a part of Operation Market Garden in September 1944 and Operation Varsity in March 1945.  A few were even used in the Pacific theater,…"
Jun 25, 2024
Brett Lovett replied to Mark Shayne's discussion Defense Plant Corporation
"Sorry.  I typo-ed DCP twice.  I noticed it too late to edit.  It should be DPC in all cases, for Defense Plant Corporation.  "
Jun 25, 2024
Brett Lovett replied to Mark Shayne's discussion Defense Plant Corporation
"Andy,From my research of the CAA files for most of the Interstate Cadets (trying to learn about their Kansas City plant and any production there), I've found none that were sold directly to the DPC.  The DCP did acquire many of them later…"
Jun 25, 2024
Mark Shayne posted a photo
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249er at Heritage Flight Museum

We visited Apollo 8 astronaut Major General William Anders Heritage Flight Museum at Skagit Municipal Airport (KBVS) a few weeks ago. They had us park our Porterfield in one of their hangers while we visited. We were quite honored! It’s a great…
Jun 3, 2024
0 Comments
Mark Shayne posted a discussion

Defense Plant Corporation

No Description
May 23, 2024
0 Comments
Andy Gelston replied to Mark Shayne's discussion Defense Plant Corporation
"The DPC bought a lot of Collegiate type aircraft and issued them to contracted flight schools participating in the Civilian Pilot Training Program. For instance, Interstate Aircraft's sole buyer of all their Cadets was the DPC. They never sold…"
May 15, 2024
Mark Shayne replied to Mark Shayne's discussion Propeller for CP 65
"I have an update on this: I did go with a beautiful factory new Sensenich 72/44, and for our config it works great. Solo indicated airspeed is 90mph at 2150 rpm. With an adult sized passenger, we indicate 86mph at 2150. We didn't seem to give…"
Apr 29, 2024
Mark Shayne commented on Dan R. Stewart's photo
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"She's a beauty Dan!"
Apr 28, 2024
Mark Shayne posted a discussion

Defense Plant Corporation

Greetings fellow Porterfield admirers. Back in March, Andy posted about an LP-65 on Barnstormers. The ad called it a "warbird" because it was transferred to the Defense Plant Corporation (DPC) in 1942-1944. Our Skinny Bird NC27249, was also owned by the DPC from 3/12/43 until 8/8/44. What is the consensus on this qualification for such status? I would imagine DPC used these birds for primary pilot training to support our country's defense efforts. Every Cub, Champ, Luscombe andT-Craft must have…See More
Apr 28, 2024
4 Comments
Mark Shayne replied to Mark Shayne's discussion Trim “jack screw” lube
"Thanks Andy. "
Apr 3, 2024

Profile Information

About Me:
My wife and I are the proud owners and caretakers NC27249, #738, a 1940 LP65 (with a Continental 65). This airplane was purchased new by my wife’s grandfather who owned it until about the time the war started. My wife’s father was able to reacquire it in the early 90s in need of restoration. It sat for many years, and was finally restored to pristine conditions in 2015. It’s so cool that my wife and I both get to fly her grandfathers airplane.
Do you own a Porterfield Airplane? N#?
Yes
Are You a Pilot? Ratings?
Yes
Do you have a MYSPACE profile, email address or personal website that you would like to share with others?
http://No

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LP 65 hub caps

Hello, I've heard that L5 Hub caps will work on the Porterfield. Anybody have any ideas of others that might? I think they would look sharp on our old girl. Thanks Mark NC27249

Posted on July 24, 2017 at 1:42pm — 1 Comment

Landing Gear Rubber

I recently replaced the landing gear rubber on our 1940 LP65. The old ones were cracked and sagging and in dire need of replacement. I talked with Leroy Blum about this via the telephone, and he was very informative. I acquired the rubber stock from L.A. Rubber at a reasonable cost. On this website, I found a link to a photo of the original blueprint showing the proper dimensions (diameter, square hole size, and radius of corners) Near our airport, Arlington Municipal (AWO), I found an… Continue

Posted on October 12, 2015 at 10:22pm — 1 Comment

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At 10:44am on July 11, 2015, Mark Shayne said…
By the way ours is an LP65, NC27249
 
 
 

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