Brodhead Pietenpol Association

Earl Brown

Yes
This has everything in it

https://www.pietenpolaircraftcompany.c ... e-of-plans

Earl Brown

Never used
68x34
For Corvair engine
$1000

Earl Brown

Hi Chris
That is odd.
Do you have any photos?
Where are you located?

Earl Brown

I would have to look when I get home, but I'm pretty sure these are what I used.

https://www.aircraftspruce.com/catalog/ ... ey=5218012

Earl Brown

That is not one of Williams mounts. It does have a tray, but his mounts don't have the triangular gussets and are much better welded!

Earl Brown

Yes, those are the butt ribs. The ply sheeting keeps the ribs from deforming when the wing is covered.
The bracing in the trailing section isn't to plans, but would work just as well as what's shown in the plans.
The "cutouts" at the the spar sections are to clear the attach fittings.

Earl Brown

Someone did build a low wing version but it was not Bernard and had nothing to do with him.

Earl Brown

You could probably get them to work, but the two mounting systems are completely different.

Earl Brown

I don’t believe the plans are available any more.

Earl Brown

John Deere spring #T143444

Earl Brown

The lower rib in the picture is for the ailerons.
The extra supports are for the spars that make up the hinge area for the ailerons.
The upper rib is the standard rib for the rest of the wing.
The plans show where the two types go.

Earl Brown

An excellent book on the subject.
Well worth the money if you are looking at changing/designing landing gear.

Earl Brown

You don’t actually need a CAD program to draw out the metal pieces for the Piet.
Almost any vector graphics program will work.
As will a pencil and paper if you are actually making the parts yourself.

Earl Brown

I originally used a John Deere spring-
I think the number was T143444

Earl Brown

It’s available in the “Store” section.

Earl Brown

Buy them from the Pietenpol family.
https://www.pietenpolaircraftcompany.com/

Earl Brown

I know Dick had started a set of floats at Sun n Fun years ago, not sure what happened to them.

Earl Brown

I know Duck had started a set of floats at Sun n Fun years ago, not sure what happened to them.

Earl Brown

I don’t know how much travel to have at the rudder bar, but I think a lot of people are using the control surface limits used in he UK.

http://www.lightaircraftassociation.co. ... CAMPER.pdf

Earl Brown

Have you tried Google?

Earl Brown

As Terry said, it sounds like you are looking for validation on something you’ve already made your mind up about. There are plenty of aircraft that already fit what you are trying to do, but, it’s experimental aviation. So while it won’t be an Air Camper or a Sky Scout, go ahead and build “your” air...

Earl Brown

Hey John

I just recently finished up my gear. Working on the rudder/elevator controls now.
Message me if I can help.

Earl

Earl Brown

FC-10 (French Curve 10) is the standard airfoil designed by B. H. Pietenpol.

Earl Brown

Just add a spacer under the fin

Earl Brown

I built the HS first then drilled the holes.
I used one of these for the holes, but you can make a drill guide pretty easily.
https://www.browntool.com/Listview/tab ... ch=Egg+cup

Earl Brown

That’s what I used

Earl Brown

I am using bolts. These are temporary- just holding the tail so I can run the rudder and elevator cables but it's how I'm attaching them.

Earl Brown

I'd try to pull the tail ends together more to get the stringers to follow the shape of the fuselage.
I also have my stringers angled toward a common center spot in the arc of the formers.
Here are a couple of in-progress pics from when I was working on mine.

Earl Brown

Where in PA are you located?

Earl Brown

PoconoJohn wrote: ↑Fri Feb 26, 2021 2:44 pm Thanks! You must be getting near the finish line.

Well, close to the finish line for this task!
Lots more to go. I really try to just focus on the task at hand, looking at the whole thing can get overwhelming!

Earl Brown

John, yes most of the fittings would benefit from being slightly longer than the plans show. I made mine to the plans and it would make things a little easier if they were longer, but they will work fine so I'm not going to stop the progress I've been making this week and go back and remake them rig...

Earl Brown

I have used those on my tail wires. Really not that expensive to have Aircraft Spruce make them up.

Earl Brown

all your wood (including in any holes drilled) should be varnished to protect the wood.

Earl Brown

The crossmembers go across the fuselage where the vertical side member junctions are, just like they do on the "short" fuselage.

I left the tailpost off until the sides were glued together, then glued in a solid piece of wood and shaped it to the fuselage sides.

Earl Brown

I moved the connecting rod to the right side of the sticks. My hand hits my knee before the rod hits the seat back.

Earl Brown

There are also blocks added to the top of #3 and #5 for mounting the cabane struts. Depending on how you attach the rear seatbelts, the UK plans show a large wedge added behind #7 at the lower longeron. Also, 1/8 gussets are used on the outside and the inside of the fuselage from the rear cockpit ba...

Earl Brown

Do you have any photo?
I’d be interested in seeing how the structure was redesigned to accommodate the vee lift struts.

Earl Brown

That's pretty unusual.
Is the project actually a Pietenpol or a Grega?

Earl Brown

Where are you located?

Earl Brown

Dan, Extending the engine mount is mentioned in the Weight and Balance book, but it is mentioned as not being a good way to adjust the CG. The plane is designed to have the wing move forward and backward to adjust the weight and balance. Why wouldn't you just move the wing as back as designed? It's ...

Earl Brown

Hi Jeffrey

William also sells a maintenance and operations manual for the Corvair.
It's on the website- https://flycorvair.net/product/0300-mai ... es-manual/

He is definitely worth contacting about the engine.
His email and phone number are also on the website.

Earl

Earl Brown

Mine are 2” taller

Earl Brown

Robbie, Yes, per Bernard, the axle should be about 1/2" behind the leading edge. It should be near the front of the leading edge no matter what engine you are using. Why are you extending the motor mount and not moving the wing back? You get a greater change in the CG moving the wing as opposed...

Earl Brown

Hi John

Yes, it’s very common for those fittings to be made longer.

Earl

Earl Brown

Hi Paul, The best place to get plans is still from the original source. https://www.pietenpolaircraftcompany.com You can buy the whole set or sections depending on what you are working on and they do come with a manual. Andrew Pietenpol is very helpful in deciding which set you may want. The plans w...

Earl Brown

Robbie,
How far back from verticle are the cabane struts slanted?

Earl

Earl Brown

Welcome to the site! The plans can still be purchased here: https://www.pietenpolaircraftcompany.com Wing incidence will take care of itself if the front cabane struts are an inch longer than the rear ones. Most other rigging questions can probably be answered by doing a search on this site- I know ...

Earl Brown

So you are at 23" aft CG?
What are the min. and max. pilot weights shown on the W&B?
The wing is back 4"- does your W&B show how far back the wing LE is from the firewall?

Earl Brown

Tbopper; The shorter fuselage might be a bit lighter, but it won't solve the rear CG issue. Both the long and short fuselage are prone to CG issues. While it's a bit of a project to fix after the plane is finished, it can be done. You mentioned that you bought the project, was it flying when you bou...

Earl Brown

Thanks, John
It"s 1"x1" balsa that I shaped then soaked with cyanoacrylate glue

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