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Old May 02, 2011, 12:59 PM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,430 Posts
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Skeleton Cartoon Pitts (now with video)

This is what's on my workbench right now. Still finalizing various little design details. A number of things have been changed since these parts were cut. This set of "bones" is to work out details on, ballast with equipment to see if it ballances, etc.

Enjoy!

Gordon

Edit: The plane has flown now. Here are a couple of pictures of the finished plane. More detailed pictures are further along in the thread. And, here is a link to video.


Cartoon PItts (1 min 2 sec)
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Last edited by Gordon Johnson; May 15, 2011 at 10:59 PM.
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Old May 02, 2011, 01:31 PM
Gary
gklein's Avatar
USA, CT, Sandy Hook
Joined Dec 2009
795 Posts
Gordon, You said that you were going to skeletonize the pitts, but I didn't imagine that you would be so fast! Looks great! What's the span and how will you power it? I finally took mine outside, even with the ailerons being only on the bottom wing it rolled well. Yours should perform much better.
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Old May 02, 2011, 01:39 PM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,430 Posts
Gary,
I'm not fast. I started noodling around with it sometime in February. Carl Martin and I have been swapping ideas and drawings as we brainstormed together. Mine will be a Cartoon Pitts. Carl's will be an original design that has some echos of a Pitts in it.

Span is 14 inches and I hope to bring it in between 28 and 30g AUW. Equipment will be AR6400, two external linear servos and a Gasparin G15 Bee BL motor with a Heino Young YGE 1-cell BL controller. I went with the Gasparin motor because of its relatively low amp draw and 1g lower weight than an MM motor, which should allow using a 90mAh cell to save weight. In my experience AP03 motors are amp hogs and require larger cells. And, a MM motor puts out more thrust than this plane will need. Covering will be RA Microlite with painted on trim.

Gordon
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Old May 02, 2011, 09:38 PM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,430 Posts
A Pitts has got to have wheel pants ...
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Old May 02, 2011, 10:04 PM
R.C. Aviation Fanatic
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Canada
Joined Aug 2009
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Gordon

This is amazing !!
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Old May 02, 2011, 10:39 PM
Flash, AAAAAAAAAAAHhhhhhhhhh
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United States, UT, West Jordan
Joined Dec 2008
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oh my
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Old May 03, 2011, 01:22 AM
Team30 Micro EDF
NitroCharged's Avatar
Adelaide, Australia
Joined Apr 2004
11,196 Posts
She's a beauty Gordon! Looking good!
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Old May 03, 2011, 03:00 AM
Looking4Grass in AZ
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United States, AZ, Mesa
Joined Feb 2011
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How you gonna paint it up?
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Old May 03, 2011, 06:38 AM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,430 Posts
I'll paint it with painting masks like I did on my Toon Jet
http://www.rcgroups.com/forums/showthread.php?t=1403892
The mylar is painted, then the individual pieces are covered, and finally the airframe is assembled.

Glad you guys like it. Since it's a "Cartoon" scale rendition of a Pitts, I intend to have an appropriate pilot in the cockpit: Calvin from Calvin and Hobbes.

Gordon
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Old May 03, 2011, 07:20 AM
Registered User
Westbrook Maine
Joined Apr 2003
594 Posts
Nice work Gordon! Are you planning on coupling the ailerons or using two bell cranks for them?

Fritz
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Old May 03, 2011, 07:22 AM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,430 Posts
Fritz,
I'm going simple on this one, and taking a slight weight hit. I'll use two separate linear servos like the 4Site, and then connecting rods to link the top and bottom ailerons.

Gordon
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Old May 03, 2011, 09:15 AM
R.C. Aviation Fanatic
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Canada
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Cant wait to see the final project? Will you be selling cut out kits?
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Old May 03, 2011, 09:30 AM
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I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
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Quote:
Originally Posted by Razors edge 29 View Post
Cant wait to see the final project? Will you be selling cut out kits?
Don't we all wish he always provides PDF's though.

Gordon I don't know if you've seen the 4-Site aileron connectors or not but there super light and simple. It would be a good way for anyone to do it.
TODD
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Old May 03, 2011, 10:33 AM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,430 Posts
Quote:
Originally Posted by Razors edge 29 View Post
Cant wait to see the final project? Will you be selling cut out kits?
Sorry, no kits from me. I'm not in the kitting business.

Gordon
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Old May 03, 2011, 11:28 AM
R.C. Aviation Fanatic
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Okay

Just a lot easier for someone with CNC laser
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