Search found 78 matches

by Richard Roller
Thu Jul 02, 2020 2:33 pm
Forum: Pietenpol Builders Forum
Topic: N34KP
Replies: 13
Views: 785

Re: N34KP

I forgot to post. I've flown N34KP several times now, flies fine. The fabric stayed on! I have to get up early to beat the heat.
by Richard Roller
Tue Jun 23, 2020 6:30 pm
Forum: Pietenpol Builders Forum
Topic: N34KP new weight and balance
Replies: 2
Views: 273

Re: N34KP new weight and balance

One more thought. After thinking about it I'm sure that a large part of that 20 lb weight increase is from the the counter-weighted crank that was installed after the first one broke. I'd forgotten about that and I know the weight and balance wasn't redone at that time. I don't know how much more th...
by Richard Roller
Sun Jun 21, 2020 10:36 am
Forum: Pietenpol Builders Forum
Topic: N34KP new weight and balance
Replies: 2
Views: 273

Re: N34KP new weight and balance

It has occurred to me that people might want to know about the negative 1.2 lb. figure in the base wt.&bal. With the fuel tank empty and in the flight posistion the a/c is nose heavy and wanted to fall onto the prop. So a bag of tools was placed on the horizontal tail directly above the tail wheel. ...
by Richard Roller
Sat Jun 20, 2020 5:50 pm
Forum: Pietenpol Builders Forum
Topic: N34KP new weight and balance
Replies: 2
Views: 273

N34KP new weight and balance

Hey everyone. N34KP had a new weight and balance ran on it today. Some background. N34KP was built by Ken Perkins from Olathe Ks. The aircraft was finished in 1999, but suffered from an aft C.G. problem. When weighed with Ken in the pilot seat and full fuel, the aircraft was 3.37” aft of the recomme...
by Richard Roller
Fri Jun 19, 2020 8:28 pm
Forum: Pietenpol Builders Forum
Topic: PHOTO CALL - 3rd Quarter Newsletter
Replies: 3
Views: 189

Re: PHOTO CALL - 3rd Quarter Newsletter

Hey Pat. Do you have a preferred format for articles? Word, rich text format, etc.?
by Richard Roller
Sat Jun 13, 2020 8:23 am
Forum: Pietenpol Builders Forum
Topic: N34KP
Replies: 13
Views: 785

Re: N34KP

Just titanium fasteners, Oscar. I probably saved a whole 1/10 of an ounce! I used them mainly for corrosion reasons.
by Richard Roller
Fri Jun 05, 2020 3:48 pm
Forum: Pietenpol Builders Forum
Topic: N34KP
Replies: 13
Views: 785

Re: N34KP

Mine is hardly a tow hook. Just something I threw together years ago so I'd feel better propping the Piet. Made several for other builders at the airline. The frame is .090 4130, the hook I think is just cold rolled steel. I did intentionally make the frame the right width to trap a 10-32 nut, to ma...
by Richard Roller
Fri Jun 05, 2020 9:31 am
Forum: Pietenpol Builders Forum
Topic: N34KP
Replies: 13
Views: 785

Re: N34KP

The paint is rattle can Rust-oleum Husqvarna Orange. The closest I could get to whatever paint Ken used in 1999 on the Superflite fabric system. I just know he bought local automotive paint. The tail hook is something I made while still working at a certain airline. Nice light titanium hardware! It ...
by Richard Roller
Thu Jun 04, 2020 5:46 pm
Forum: Pietenpol Builders Forum
Topic: N34KP
Replies: 13
Views: 785

N34KP

Hey everyone. Not everyone may know, but last year on the way to Brodhead for the fly in N34KP, Ken Perkins Piet, was damaged. The tail wheel assembly was torn out of the left longeron. The repair is completed now and it ran for the first time since last July yesterday. I started the condition inspe...
by Richard Roller
Fri May 29, 2020 5:44 pm
Forum: Pietenpol Builders Forum
Topic: Felt for Leading Edge
Replies: 2
Views: 210

Re: Felt for Leading Edge

On N34KP Ken Perkins used polyester batting he bought at a local fabric store. Pretty easy to work with. Gives a little bit of "give" when the leading edge is pressed. Also an air passage behind the fabric when installing and gluing the fabric. No air bubbles under the paint. It's been on Ken's Piet...
by Richard Roller
Mon May 04, 2020 12:51 pm
Forum: Pietenpol Builders Forum
Topic: Glide Ratio
Replies: 6
Views: 392

Re: Glide Ratio

When the crank breaks at 500ft, poor.
by Richard Roller
Wed Apr 29, 2020 11:11 am
Forum: Pietenpol Builders Forum
Topic: Experimental Insurance
Replies: 3
Views: 302

Re: Experimental Insurance

I get mine through Falcon Insurance in Kerrville also.
by Richard Roller
Tue Apr 28, 2020 6:27 pm
Forum: Pietenpol Builders Forum
Topic: Experimental Insurance
Replies: 3
Views: 302

Re: Experimental Insurance

I use Global Aerospace Insurance. It's about $450 per year for the Piet. That covers the minimum that the city airport where it's based requires, so they will let me hanger it there. Basic medical for passengers, etc.. NO airframe coverage.
by Richard Roller
Wed Apr 22, 2020 9:03 pm
Forum: Pietenpol Builders Forum
Topic: What is this on the drawing on page 2?
Replies: 2
Views: 354

Re: What is this on the drawing on page 2?

Looks like the hinge point on the horizontal stabilizer.
by Richard Roller
Fri Apr 17, 2020 9:06 pm
Forum: Pietenpol Builders Forum
Topic: Heating steel after bending
Replies: 2
Views: 309

Re: Heating steel after bending

If you had the proper grain direction and minimum bend radius you shouldn't have to stress release.
by Richard Roller
Wed Mar 11, 2020 12:42 pm
Forum: Pietenpol Builders Forum
Topic: Rudder Post/bar typo
Replies: 5
Views: 451

Re: Rudder Post/bar typo

I wouldn't think it would be a problem, if you are comfortable welding the bushing that thin. You would be at about .030".
by Richard Roller
Sun Mar 08, 2020 11:26 pm
Forum: Pietenpol Builders Forum
Topic: Ford GAV
Replies: 4
Views: 404

Re: Ford GAV

On Ken Perkins Piet the GAV is safety wired in one position. We've never had a problem with having to adjust it. Ken just messed with it until he was satisfied with the idle and the pick up coming off idle. It can be slightly rich on a hot day, until you come off idle. If you think about that, it's ...
by Richard Roller
Fri Mar 06, 2020 7:56 pm
Forum: Pietenpol Builders Forum
Topic: Rudder Post/bar typo
Replies: 5
Views: 451

Re: Rudder Post/bar typo

John. After you weld or braze the bushing into the rudder bar you ream the bushing to accept a 5/16" bolt. You will want a snug fit, no slop. Ream to .313" - .3135". I'm assuming you are using an AN bolt to mount the rudder bar. If you weld the bushing it may be very hard after it cools down and be ...
by Richard Roller
Fri Feb 28, 2020 3:01 pm
Forum: Pietenpol Builders Forum
Topic: New member Kansas City metro
Replies: 7
Views: 581

Re: New member Kansas City metro

Matt.

I have Ken Perkins Piet, N34KP, at the Gardner airport on 175th. street. Not the old naval air station (New Century), but the little strip west of town.

The Piet is currently under repair in the tail area, but you are welcome to come see it anytime. Bring your camera.

Richard.
by Richard Roller
Mon Feb 10, 2020 7:27 am
Forum: Classified Ads
Topic: Wheels and brakes
Replies: 1
Views: 517

Re: Wheels and brakes

Now $2000.00, negotiable.
by Richard Roller
Sun Feb 02, 2020 8:45 am
Forum: Photo Section
Topic: Ken Perkins Piet
Replies: 12
Views: 3637

Re: Ken Perkins Piet

Thanks so much for posting all these pictures. Fantastic!
by Richard Roller
Fri Jan 31, 2020 9:57 am
Forum: Pietenpol Builders Forum
Topic: Wooden repair
Replies: 4
Views: 450

Re: Wooden repair

When Ken built N34KP he used the Superflite covering system, whichever version it was in the late 90's. I've been on their site and they also have a 2 part epoxy varnish. I'm not sure what Ken used to varnish the structure of his Piet. When I was removing the finish in the repair area (with a block ...
by Richard Roller
Thu Jan 30, 2020 2:27 pm
Forum: Pietenpol Builders Forum
Topic: Engine
Replies: 4
Views: 491

Re: Engine

I guess I should have mentioned the engine, it's a Ford model A.
by Richard Roller
Thu Jan 30, 2020 8:07 am
Forum: Pietenpol Builders Forum
Topic: Wooden repair
Replies: 4
Views: 450

Wooden repair

Hi all. While on my way to Brodhead this last summer for the fly in, N34KP was damaged. The tail wheel assembly was almost torn off the airplane. I've been working on repairing the damage these last few months. The damaged area is repaired now and it's time to recover the area. This is where I'm loo...
by Richard Roller
Sun Jan 26, 2020 8:54 am
Forum: Pietenpol Builders Forum
Topic: Engine
Replies: 4
Views: 491

Re: Engine

Not sure which model you have in mind. The first thing that comes to mind is that they are very light. That could be a balance problem. The Piet that I fly, Ken Perkins N34KP, has the engine (256 lbs.) moved forward 7 inches from the original plans posistion. This is to allow for the "larger" people...
by Richard Roller
Thu Jan 02, 2020 8:25 pm
Forum: Pietenpol Builders Forum
Topic: Small Detail to consider
Replies: 2
Views: 448

Re: Small Detail to consider

That is a standard J-3 exhaust system for a Continental engine. Something else is causing the burning on the gear vee. Mixture problem?
by Richard Roller
Mon Dec 23, 2019 10:28 am
Forum: Classified Ads
Topic: Wheels and brakes
Replies: 1
Views: 517

Wheels and brakes

For sale: new, never installed, one pair Cleveland wheels and brakes. Brakes come with axle torque plates. Master cylinders NOT included. Cleveland P/N 199-104. Wheels: 40-59B, Magnesium, 6:00 x 6 tube type. 1-1/2" axles. Rated at 1750 lbs. TSO-C26b. Used on Beech 19, 23, 24R, Skipper, Piper Tomahaw...
by Richard Roller
Mon Dec 02, 2019 2:37 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins plans/parts
Replies: 0
Views: 840

Ken Perkins plans/parts

Hey everyone. I've had several people inquire about parts and prints done by Ken Perkins. When he died all his aircraft stuff was donated to VAA 16 in Gardner, Ks. I've been given a contact email if anyone wishes to ask about parts and prints.

Kevin Pratt
kpratt@centuryroofingkc.com
by Richard Roller
Mon Dec 02, 2019 2:28 pm
Forum: Pietenpol Builders Forum
Topic: Actual Empty Weight of Pietenpol
Replies: 27
Views: 1830

Re: Actual Empty Weight of Pietenpol

Ken Perkins did the same thing to the leading edge of his wing. His has the Pietenpol airfoil.
by Richard Roller
Wed Nov 20, 2019 5:26 pm
Forum: Pietenpol Builders Forum
Topic: Actual Empty Weight of Pietenpol
Replies: 27
Views: 1830

Re: Actual Empty Weight of Pietenpol

Another consideration. The weights you are referencing for the A-65 and the model A might not be accurate. I can say from weighing the Ford A in Ken Perkins Piet that the engine weight, for HIS engjne, was 256lbs., but that included oil, 2 gallons of water, and a wooden prop. The engine also has an ...
by Richard Roller
Tue Nov 19, 2019 5:35 pm
Forum: Pietenpol Builders Forum
Topic: Actual Empty Weight of Pietenpol
Replies: 27
Views: 1830

Re: Actual Empty Weight of Pietenpol

IMG_0239.JPG I did the weight and balance for a local Piet in my area, Kansas City, Mo., by Virgil Chapman a long time builder. I believe it was his 4th project. His Piet is built to the plans with a steel tube fuselage, Cleveland 6:00 x 6 wheels and brakes, Vi Kapler three piece wing, die spring s...
by Richard Roller
Mon Nov 18, 2019 9:44 am
Forum: Pietenpol Builders Forum
Topic: Open Cockpit for those with Glasses
Replies: 5
Views: 669

Re: Open Cockpit for those with Glasses

I use these goggles. They fit over my glasses and are comfortable. I did fly without for several years with no problems, but it was an odd feeling if I stuck my head out the side into the slipstream. I worried about losing my glasses. https://www.amazon.com/Halcyon-Vision-Goggles-Clear-Lenses/dp/B00...
by Richard Roller
Thu Jul 11, 2019 8:50 pm
Forum: Pietenpol Builders Forum
Topic: Routing Willy Nilly
Replies: 3
Views: 1194

Re: Routing Willy Nilly

Ken Perkins routed the leading edge, between ribs.
by Richard Roller
Mon Jun 24, 2019 7:13 pm
Forum: Classified Ads
Topic: emergency beacon corp. (EBC) elt 102A
Replies: 1
Views: 510

emergency beacon corp. (EBC) elt 102A

I'm looking for an operational EBC-102A elt. That's what is in Ken Perkins Piet. I'm not sure it's still good. I'd like to put the same back so I wouldn't have to change the mount.

Does anyone have one they might want to sell for a reasonable price?
by Richard Roller
Mon Jun 24, 2019 3:10 pm
Forum: Photo Section
Topic: Ken Perkins Piet
Replies: 12
Views: 3637

Re: Ken Perkins Piet

I have Ken's Piet.
by Richard Roller
Sun Mar 31, 2019 5:19 pm
Forum: Pietenpol Builders Forum
Topic: Steel Fuselage Progress
Replies: 6
Views: 1471

Re: Steel Fuselage Progress

Thanks for posting the pictures. I've been brainstorming on a tube fuselage Piet for a while now and it's nice to see pictures of someone else's solutions to the various things I've been wondering about.
by Richard Roller
Mon Mar 25, 2019 4:32 pm
Forum: Pietenpol Builders Forum
Topic: Instrument Panel
Replies: 11
Views: 2375

Re: Instrument Panel

Yes, I like the location of the compass also. I can't see the compass in the Piet I fly.
by Richard Roller
Thu Mar 21, 2019 8:46 am
Forum: Pietenpol Builders Forum
Topic: Instrument Panel
Replies: 11
Views: 2375

Re: Instrument Panel

Looks fine to me. Get that tri-plane!
by Richard Roller
Thu Feb 21, 2019 10:52 am
Forum: Pietenpol Builders Forum
Topic: Prop hub snap ring
Replies: 8
Views: 1816

Re: Prop hub snap ring

The snap ring goes in the hub after the nut is installed. It's what the nut pushes against when you remove the hub from the tapered shaft of the engine.
by Richard Roller
Fri Feb 01, 2019 7:10 pm
Forum: Pietenpol Builders Forum
Topic: forming control horns
Replies: 8
Views: 1805

Re: forming control horns

Brian. Ken Perkins tig welded his horns. He made a copper heat sink to do the leading edges with rod. Then pulled the trailing edges together and fusion welded those edges. He used a technique that I was taught when I was still doing composite work on big a/c. I would weld my own thermo-couples. The...
by Richard Roller
Fri Jan 18, 2019 12:42 pm
Forum: Pietenpol Builders Forum
Topic: Fittings: annealing, bending, hardening?
Replies: 3
Views: 1227

Re: Fittings: annealing, bending, hardening?

Brian. Generally when you get 4130 steel it comes in the "normalized" condition. Most information on bending is listed for this condition. I recently posted a chart for bending 4130 used on 737's. The main thing is using at least the minimum bend radius recommended and being careful of the grain dir...
by Richard Roller
Sun Jan 13, 2019 6:12 pm
Forum: Photo Section
Topic: Warm in January
Replies: 5
Views: 1361

Re: Warm in January

Clay. Not the best picture, but I'll take another the next time I get a chance.
IMG_2793.JPG
by Richard Roller
Fri Jan 11, 2019 7:10 pm
Forum: Photo Section
Topic: Warm in January
Replies: 5
Views: 1361

Re: Warm in January

Clay. I believe that Ken made the instrument from an old International Harvester truck instrument cluster. He replaced the speedometer with a tach and it has an oil pressure gauge with a water temp. Oddly enough, recently, I was going to fly the Piet, when I started the engine the whole cluster fell...
by Richard Roller
Tue Jan 08, 2019 7:01 pm
Forum: Photo Section
Topic: Warm in January
Replies: 5
Views: 1361

Warm in January

A rare 60° day in January.
by Richard Roller
Wed Dec 26, 2018 2:04 pm
Forum: Pietenpol Builders Forum
Topic: Fueslage Modifications For Diffrent Engines.
Replies: 15
Views: 3298

Re: Fueslage Modifications For Diffrent Engines.

On the weight and balance aspect. When finishing Ken Perkin's piet it turned out to be tail heavy. Not wanting to tilt the wing back we moved the engine 7 inches forward by extending the mount. It's work well for over 18 years now. I also think it looks better.
by Richard Roller
Tue Nov 27, 2018 6:03 pm
Forum: Pietenpol Builders Forum
Topic: Waterjetting
Replies: 13
Views: 2858

Re: Waterjetting

This is the info I used when working on certain large aircraft. 8-)
steel bend radius.pdf
(216.89 KiB) Downloaded 134 times
by Richard Roller
Tue Nov 13, 2018 6:45 pm
Forum: Pietenpol Builders Forum
Topic: Glue and varnish
Replies: 20
Views: 3511

Re: Glue and varnish

Oscar. I'd have to agree with you on the glue subject. We don't have to comply with the military specs on glues. But we would be a little crazy not to consider the information available in the mil. specs. or from AC 43.13. Information from successful builders should, of course, be considered. I'm aw...
by Richard Roller
Tue Oct 30, 2018 5:05 pm
Forum: Pietenpol Builders Forum
Topic: Waterjetting
Replies: 13
Views: 2858

Re: Waterjetting

Ken Perkins water jetted the steel parts for several years. He made many sets of them. He would take a water jet course at the local community college (with the senior citizen discount) and cut out multiple sets. Before anyone asks, I don't have his drawings. He had them on USB drive and it wasn't f...
by Richard Roller
Mon Sep 24, 2018 4:53 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 4449

Re: Ken Perkins Piet

Yes, Oscar, is is good to see the old bird fly again. I took it up again today to get back in the groove. A bouncy landing yesterday. Much better today. Piets are so much fun to fly.