Porterfield Airplane Club

Keep the Skinny Birds Flying Safely

Was there ever an STC for electric start on the Collegiate?  (LP or CP)

Is there any guidance on putting in a radio/xpdr/ elec. sys?

Can someone please measure the interior space for the pilot seat area?  Width.  I'm worried I'll be jammed in.  "Skinny" is not me.

I'm a large person and have been considering buying one, but I'm worried I won't fit in it.

Is there any seat fore-aft adjustment?

Can someone send the W&B chart to me?

What are the flight characteristics compared to a Cub or T-cart?  Is a wheel landing possible?

Is there any window slide STC or ventilation available?  It gets HOT in Texas and I don't want to pass out.  At least you can leave the door open on the Cub.

Views: 63

Comment

You need to be a member of Porterfield Airplane Club to add comments!

Join Porterfield Airplane Club

Comment by Marcia Mason on July 13, 2017 at 9:34am

Awesome!  I'm sure this will be a big help to many!  Thanks bunches!

Comment by Andy Gelston on July 13, 2017 at 9:26am

The type certificate places the datum at the leading edge of the wing; the CG range is +10.5" to +19.9"; and the empty weight CG range is +15.8" to +16.4"  The type 2 landing gear is at 3" and the tailwheel is at +195"  There are line drawings of the Collegiate on the internet that you could copy and paste into a W&B form, if you need the diagram.

Comment by Marcia Mason on July 10, 2017 at 10:21am

Yes, it helps a lot, but there isn't a diagram showing the CG location on the W&B chart.

Very nice pictures from France!!!

Comment by Andy Gelston on July 9, 2017 at 11:31am

Why is the Collegiate so skinny?  The original design, the Wyandotte Pup, was for a high school shop project and all the parts, especially the fuselage, had to fit through a 32" wide door frame to be moved out of the shop.  Ed Porterfield was quite taken with the Pup and bought the rights to her.  Many design changes were subsequently effected, but the fuselage was never widened, as this was during the Depression.  Most people walked everywhere, were well under 6', and fast food and processed junk food were still in the distant future.

Comment by Andy Gelston on July 9, 2017 at 11:20am

You can find original factory W&B sheets here: http://www.porterfield-turner.net/page/25

Thanks to our member in France, Olivier!  Just scroll down a bit and you'll see it in the center of the page.  There are three pages to the document.

Comment by Marcia Mason on July 1, 2017 at 5:46am

Excellent answers all. Thank you so very much!  I'm sure these Q&A's will help many a would-be buyer!  Any other comment from others are truly appreciated as well.  Send the W&B to this blog or to stinsoneer@airmail.net.

Comment by Andy Gelston on June 30, 2017 at 11:56pm

Was there ever an STC for electric start on the Collegiate? (LP or CP)

Not that I'm aware of as the 65 and lower HP engines, with few exceptions, didn't have starters.

Is there any guidance on putting in a radio/xpdr/ elec. sys?

Mark Story, down in Mexico, installed a Becker or MicroAir com and transponder in the wingroot  of his Collegiate.  Power is from a Wardaero generator on a bracket bolted to the main landing gear vee.

Can someone please measure the interior space for the pilot seat area? Width. I'm worried I'll be jammed in. "Skinny" is not me. I'm a large person and have been considering buying one, but I'm worried I won't fit in it.

You probably won't fit, comfortably, if you're taller than 5'8" and/or weigh more than 180 pounds.  I'm 6' and 165 pounds and find the front seat a bit claustrophobic, but I get used to it by the time I'm at the end of the runway, performing her run-up.  There's even less room in the rear seat, but you solo from the front seat or the CG shifts too far aft and she handles a bit wonky.

Is there any seat fore-aft adjustment?

No, the seats are fixed.

Can someone send the W&B chart to me?

I'll see if I can scan one.

What are the flight characteristics compared to a Cub or T-cart?

60 mph is the standard speed for take off and landing, but she performs much better: stalls slower and has a higher cruise and Vne.  Thermals will drop wings on you and the controls are a bit heavy, but they respond quickly to get you back to straight and level within a second or two.  She slips nice to land short and takeoff depends on the density altitude and weight, but she gets up in a few hundred feet and climbs at about 600 fpm at 60mph.

Is a wheel landing possible?

Yes, but why?  With a stall speed of 32mph...she doesn't land like a Beech 18.

Is there any window slide STC or ventilation available?

The left side window is divided into front/back halves and they slide forward/aft.  The door window is fixed and I'm not aware of any mods to convert it to a window like the left one, but you could be the first, if your MIDO isn't full of ignorant yuppies like mine is.

It gets HOT in Texas and I don't want to pass out. At least you can leave the door open on the Cub.

On a real hot day, her performance with 65HP will be nothing to write home about, but she will always outperform a Cub with her modified M-6 airfoil and pressure cowl.  But if low and slow with the door open, a roomy cockpit, and a full electrical system is your thing, try a PA-11 with a C-85-12 or an O-200.

© 2017   Created by Tom Porterfield.   Powered by

Report an Issue  |  Terms of Service

Free Web Counter
Free Web Counter