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Old May 09, 2015, 06:38 AM
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Build Log
B-66 Foam EDF Build Project

Hi,

I’m starting this build thread to document my B-66 Destroyer project. As you may know, the B-66 was the U.S. Air Force’s adaptation of the Navy’s twin-jet A-3 Skywarrior. Below is an image of my creation of the aircraft in the Phoenix flight-sim program.



This is my first scratch build of an RC airplane and the first time I’ll be working with foam. So, the process will be slow as I research best practices for each stage of the build.

For a brief video about the project, including B-66 Phoenix flight scenes, go to :

B-66 "Destroyer" RC Model Planned Build and Phoenix Test Flight (7 min 57 sec)


The project has four main phases:

Phase 1. Preliminary research and creation of a Phoenix B-66 flight-simulator model to test and refine the design’s flight characteristics.

This step has been completed. Attached are two files:

-- One is a folder containing the files needed if you want to fly the B-66 model in the Phoenix flight sim program.

-- The other is the B-66 model I created in SketchUp to export to Phoenix Builder. Jacques Brault gave me permission to use his X-Plane B-66 model for that purpose. SketchUp is free, if you wish to view this model from all angles.

Phase 2. Extensive research culminating in the development of the plans for the RC model, including a 3D rendition in SketchUp.

Phase 3. The build, documented with still images and/or video.

Phase 4. And, of course, the test flights, which, for better or worse, will be captured on video.

Below are the model’s basic specs, as of now:

Material . . . . . . . . . . . . . . . . . . .Mostly foam, supplemented by balsa, etc. as needed.
Wingspan. . . . . . . . . . . . . . . . . .60 inches
Weight . . . . . . . . . . . . . . . . . . . 60 ounces (give or take)
Propulsion. . . . . . . . . . . . . . . . .Two 64mm ducted fans
Flaps . . . . . . . . . . . . . . . . . . . . .Yes
Retractable gear . . . . . . . . . . . .Yes
______________________________

Below are links to some RCGroups posts related to this project. Some chronicle discussions generated by questions I’ve raised. My queries show an evolution in thinking as I have received more input. I will update this section as relevant posts go online:

“Would Like First Impressions of B-66 Project” (my query)
(http://www.rcgroups.com/forums/showthread.php?t=2381385)

“Suggestions for Building a B-66 Bomber” (my query) (http://www.rcgroups.com/forums/showthread.php?t=2384879)

“Recommentations for Light-Weight Retractable Landing Gear” (my query) (http://www.rcgroups.com/forums/showt...1#post31420271)
This thread gets into wing-chord and thrust issues as well.

“RC Groups: A3d Skywarrior, The Whale Buildthread” (GGRN, Nov., 2008) (http://www.rcgroups.com/forums/showthread.php?t=961500)
I expect GGRN’s build thread to be very helpful, even though it ends suddenly without explanation before the project is completed—not an omen, I hope.

Reactivated by me May 14, 2015: "Foam-Safe Spray Paint" (Discussion) http://www.rcgroups.com/forums/showp...6&postcount=43 .

Started by me May 16, 2015: "Plastic Nose Section?" http://www.rcgroups.com/forums/showthread.php?t=2415250 .
______________________________

Please feel free to offer suggestions, insights, support and whatever else you think might be constructive.

Bill
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Old May 10, 2015, 10:32 PM
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Awesome check also Chris Golds build as he done one of these a while back.
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Old May 10, 2015, 10:43 PM
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Couldn't find anything on Chris Golds and the B-66 when I did a search. Any suggestions?

Bill
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Old May 13, 2015, 12:19 AM
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http://gb.trapletshop.com/content/im...autour-27.jpeg

Similar but not a B66
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Old May 13, 2015, 09:05 AM
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Interesting. With the bicycle landing gear, it kind of looks like a downsized version of the B-47.
I found more information at http://en.wikipedia.org/wiki/Sud_Aviation_Vautour.

Having a 50-foot wingspan, it's classified as a fighter bomber, versus the 72-foot-wingspan B-66 light bomber.

Nice looking plane. Here's a link to a really classy-looking one:
http://www.airteamimages.com/sud-avi...ce_199814.html

Thanks,
Bill
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Old May 14, 2015, 07:47 AM
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Bill,

Great flying sim model - gonna be fun to watch you build and fly the real thing.

Cheers, rick p
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Old May 14, 2015, 09:23 PM
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Thats a french Vatour not a B-66
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Old May 14, 2015, 09:49 PM
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http://gb.trapletshop.com/copy-of-do...-3b-skywarrior

http://www.magazineexchange.co.uk/el...999-issue.html

My mistake it's a RA-3B Skywarrior
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Old May 14, 2015, 10:10 PM
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Thanks for the tip, but designing the plane will be half the fun. Wouldn't want to miss it. And my plans won't cost anyone anything.

Bill
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Old May 15, 2015, 01:22 AM
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Be a good one since ya using Podded engines make it easier to service.
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Old May 15, 2015, 07:47 AM
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Re: "Be a good one since ya using Podded engines make it easier to service."


Good thought.

On the other hand, I'll have to be careful to land with the wings level, or I'll scrape one of those nice nacelles right off. I'm thinking of having some kind of break-away or flexible attachment--rubber bands, maybe--that will minimize damage in case a nacelle comes in contact with the ground.

Bill
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Old May 15, 2015, 08:34 AM
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Followup to: "... designing the plane will be half the fun. Wouldn't want to miss it. "

However, I'm not so rigid that I won't be taking ideas from GGRN's build thread, starting at about http://www.rcgroups.com/forums/showp...3&postcount=31. Great step-by-step images of his A-3 Skywarrior build. I'll have a chance to learn from a master. (I won't let my Air Force buddies know that I borrowed from a Navy design!)

Bill
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