Search found 42 matches

by Richard Roller
Sun Mar 31, 2019 5:19 pm
Forum: Pietenpol Builders Forum
Topic: Steel Fuselage Progress
Replies: 6
Views: 122

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: 7
Views: 235

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: 7
Views: 235

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: 7
Views: 178

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: 332

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: 301

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: 346

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: 346

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: 346

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: 13
Views: 709

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: 1042

Re: Waterjetting

This is the info I used when working on certain large aircraft. 8-)
steel bend radius.pdf
(216.89 KiB) Downloaded 44 times
by Richard Roller
Tue Nov 13, 2018 6:45 pm
Forum: Pietenpol Builders Forum
Topic: Glue and varnish
Replies: 20
Views: 1170

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: 1042

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: 2369

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.
by Richard Roller
Sun Sep 23, 2018 3:41 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Re: Ken Perkins Piet

Great day everyone! Ken’s Piet, N34KP, has flown again! This morning I flew it across town from KIXD to K34, in Gardner, Ks. It ran like a fine watch, smooth. When I put the engine back together I tried a few different techniques, trying to dry up the oil leaks. So far, so good. The first time I’ve ...
by Richard Roller
Mon Aug 27, 2018 5:45 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Re: Ken Perkins Piet

Oscar. I apologize for not answering your question about Ken's Piet front cockpit instruments. I missed it entirely. Yes, it does still have the two dice instrument that say "Flying is a gamble". It also still has the "navibird" installed. I did take out the toilet paper roll moving map, it was alwa...
by Richard Roller
Sat Aug 25, 2018 10:17 am
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Re: Ken Perkins Piet

Hey everyone. I finally have the paperwork straightened out on Ken Perkin's Piet. It's amazing how fast something can get done when you get hold of a FAA Fed that is interested in helping you. I will be finishing the condition inspection soon. Then I'll get it back in the air. Can't wait!
by Richard Roller
Mon Jul 23, 2018 2:47 pm
Forum: Pietenpol Builders Forum
Topic: 2018 fly in
Replies: 0
Views: 1123

2018 fly in

Hi everyone. I'm home from the 2018 rain-in! A question: does anyone know about Doc Mosher? I didn't see him and wasn't able to find out anything about him. Any info out there?
by Richard Roller
Mon Jul 16, 2018 2:27 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Re: Ken Perkins Piet

Oscar. The engine work is not an issue. It’s the engine that came out of the Piet. No change in the installation or the airframe. The issue is that sometime in the last few years as the Piet set on the ground the airworthiness certificate and operations limitations have disappeared. They were kept i...
by Richard Roller
Wed Jul 11, 2018 6:02 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Re: Ken Perkins Piet

Hi everyone. It doesn't look like Ken's Piet is coming to Brodhead this year. The paperwork is still not straightened out and I can't see good enough yet. So I'll be driving, but I will be there.
by Richard Roller
Sat Jul 07, 2018 11:46 am
Forum: Pietenpol Builders Forum
Topic: Long Steel Fuselage
Replies: 5
Views: 1057

Re: Long Steel Fuselage

I agree with Terry on this subject. When I first started my tube Piet project I had to learn basic stress analysis, statics, so that I would feel good about what I was changing. I ran an analysis on the tube Piet that comes with the Pietenpol family drawings. Using standard category loads (FAR 23) I...
by Richard Roller
Sun Jul 01, 2018 2:04 pm
Forum: Pietenpol Builders Forum
Topic: Long Steel Fuselage
Replies: 5
Views: 1057

Re: Long Steel Fuselage

I've been working on a long steel tube fuselage project for a few years, at least the drawing and weight and balance part of it. I'm not a big fan of sweeping the wing back, so I've been using a spreadsheet to check the balance as I go. I fly Ken Perkins Piet, short wood with a Ford model A, and we ...
by Richard Roller
Mon Jun 25, 2018 2:11 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Re: Ken Perkins Piet

Ken's Piet ran this morning, the first time in 6 years. It started on the first pull with a hot mag. Minor oil leaks on the rear of the engine so far.
by Richard Roller
Fri Jun 22, 2018 9:51 am
Forum: Pietenpol Builders Forum
Topic: f/s Pietenpol engine
Replies: 3
Views: 633

Re: f/s Pietenpol engine

Okay, I'll bite. What is it?
by Richard Roller
Sat May 26, 2018 2:08 pm
Forum: Pietenpol Builders Forum
Topic: Transportation
Replies: 1
Views: 476

Transportation

Hey everyone. I remember, last year, that The Brodhead Chamber of Commerce had asked if anyone would interested in a shuttle service onto town. I don't know if it happened or not. I'm curious because I'm going to try to get Ken Perkins Piet to Brodhead this year. I have a place to stay in town but h...
by Richard Roller
Mon May 14, 2018 8:05 am
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Re: Ken Perkins Piet

I wouldn't know if there would be enough demand for dual plug heads. Ken had talked, off and on, about doing that on his, but never did. I know he sold several drives for dual mags. I believe Ron Stoinoff has dual plugs on his Piet project.
by Richard Roller
Sun May 13, 2018 11:41 am
Forum: Pietenpol Builders Forum
Topic: Ken Perkins Piet
Replies: 17
Views: 2369

Ken Perkins Piet

piet engine installed.jpg
I just wanted to let everyone know what's up with Ken Perkins Piet. I've reassembled the engine and have it sitting on the mount. I still plan on flying the Piet to Brodhead this summer. There are paperwork issues and I may have eye surgery soon, but that is the plan.
by Richard Roller
Wed Feb 28, 2018 9:30 am
Forum: Pietenpol Builders Forum
Topic: B carb needle jet size
Replies: 4
Views: 764

Re: B carb needle jet size

Some additional info. When Ken was first running his Piet he had some fuel supply problems. The solution was not in the jet size, but in fuel supply through the needle/seat combination. Ken initially drilled the seat to increase the flow. Then he had another problem in that the needle couldn't stop ...
by Richard Roller
Wed Feb 28, 2018 8:03 am
Forum: Pietenpol Builders Forum
Topic: B carb needle jet size
Replies: 4
Views: 764

Re: B carb needle jet size

model b ford jet and needle valve.pdf
(1.07 MiB) Downloaded 84 times
A drawing Ken made for a needle and seat for a model B ford carb for use on a gravity system on a Pietenpol.
by Richard Roller
Mon Feb 26, 2018 3:14 pm
Forum: Pietenpol Builders Forum
Topic: crank shaft -magneto connection
Replies: 3
Views: 1038

Re: crank shaft -magneto connection

Don, I just ran across your post on mag drives. I looked at the picture on the thread that was posted and it looks like the same drive used by Ken Perkins on his Piet with a model A. Ken made a "cup" that fits around a Continental o-470/io520 six cylinder engines mag drive cup. The cup holds two rub...
by Richard Roller
Mon Feb 26, 2018 3:05 pm
Forum: Pietenpol Builders Forum
Topic: B carb needle jet size
Replies: 4
Views: 764

Re: B carb needle jet size

Ernest,
While working to get Ken Perkins engine back together for his Piet, I ran across a drawing he made of a needle and seat for gravity fed carburetors for model a Fords with a 'B' carb. If you haven't solved your problem yet I could scan the drawing for you and sent it your way.

Richard
by Richard Roller
Fri Feb 16, 2018 10:32 am
Forum: Pietenpol Builders Forum
Topic: Centre section flop
Replies: 18
Views: 3348

Re: Centre section flop

About 1:30 into this video you will see me landing in Ken's Piet. You can see the flop jumping up.

https://www.youtube.com/watch?v=HFXw7ARl3dw
by Richard Roller
Mon Feb 12, 2018 4:24 pm
Forum: Pietenpol Builders Forum
Topic: Centre section flop
Replies: 18
Views: 3348

Re: Centre section flop

IMG_4101.JPG
The attachment IMG_4108.JPG is no longer available
The attachment IMG_4105.JPG is no longer available
The attachment IMG_4101.JPG is no longer available
I got a chance to take some pictures of Ken's Piet's flop.
by Richard Roller
Mon Dec 18, 2017 5:19 pm
Forum: Pietenpol Builders Forum
Topic: Ken Perkins
Replies: 1
Views: 642

Ken Perkins

I'm sorry to report that Ken has passed away. He died Monday, the 18th of December after suffering a stroke the previous Sat. I know that Ken will be missed by many people in the Pietenpol Family. His expertise and his great sense of humor is a loss to the Piet family that can't be replaced. Richard...
by Richard Roller
Thu Nov 30, 2017 5:18 pm
Forum: Pietenpol Builders Forum
Topic: Wing trailing edge
Replies: 8
Views: 1764

Re: Wing trailing edge

Rob, I was trying to estimate the size of the tongue on your trailing edge piece. 3/8" wide by 1/4" thick? Would you tell us?
Richard.
by Richard Roller
Sun Nov 12, 2017 9:32 am
Forum: Pietenpol Builders Forum
Topic: Wing trailing edge
Replies: 8
Views: 1764

Wing trailing edge

Hi everyone. I'd be interested in how different builders have made and attached their trailing edges. I'd like to see pictures. I'm interested in all types, metal, wood. Composites edges? I'm trying to commit to starting construction and this area has been fuzzy for me for years. The only Piet that ...
by Richard Roller
Fri Nov 10, 2017 10:05 pm
Forum: Photo Section
Topic: Air Camper/Sky Scout photo gallery
Replies: 20
Views: 4867

Re: Air Camper/Sky Scout photo gallery

Various pictures of Ken Perkin's Piet N34KP. Lots of rides given in this Piet!
by Richard Roller
Fri Nov 10, 2017 3:11 pm
Forum: Pietenpol Builders Forum
Topic: weight and balance - again
Replies: 1
Views: 683

weight and balance - again

There has been an interest the last few years on the Air Camper’s weight and balance. Also it appears to me that operating behind the aft c.g. is not being taken seriously enough. After reading and commenting on a recent post on different engine weights I thought I’d post some more information on Ke...
by Richard Roller
Wed Sep 27, 2017 8:59 pm
Forum: Pietenpol Builders Forum
Topic: Model A vs Corvair engine weight
Replies: 8
Views: 1819

Re: Model A vs Corvair engine weight

I did the weight and balance for Ken Perkin's Piet N34KP. It has a model A Ford installed. When originally built it was very tail heavy. Ken didn't want to move the wing so I did the figures to find out how far we would have to move the engine to get inside the aft c.g. limit. We weighed the Piet wi...
by Richard Roller
Wed Sep 27, 2017 8:42 pm
Forum: Pietenpol Builders Forum
Topic: Centre section flop
Replies: 18
Views: 3348

Re: Centre section flop

Johnny. I fly Ken Perkin's Piet N34KP. I thought I'd post a couple of photos of Ken's center section. I'm looking for a photos of the latch's he made, but you can see how his flop folds flat to the top of the wing. He used strap hinges similar to the original hinges used on the ailerons. In the seco...
by Richard Roller
Mon Aug 07, 2017 10:20 am
Forum: Pietenpol Builders Forum
Topic: Herb's latest modifications on N709HR
Replies: 13
Views: 2709

Re: Herb's latest modifications on N709HR

Herb, I was wondering if you would be willing to post your empty weight. I've been following the various Piets at the Brodhead flyin since 1999 and I've always been curious at the vastly different empty weights of the various Piets.
by Richard Roller
Mon May 22, 2017 11:30 am
Forum: Photo Section
Topic: Ken Perkins Piet
Replies: 0
Views: 1720

Ken Perkins Piet

HI everyone. I thought that I would try to upload some pictures of Ken Perkins Piet, N34KP. Ken has been a great friend of mine through the years. He is a wonderful mechanic and machinist. There are many parts flying around on various Piets that were made by Ken. I've been fortunate that Ken has tak...