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Author Topic: New Navy Carrier Model  (Read 2499 times)

Offline Bob Heywood

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New Navy Carrier Model
« on: July 14, 2016, 03:39:58 PM »
Just finished my .15 Grumman XTB3F-1. Gary Hull design with Fox power. Monokote / LustreKote finish. Conventional old skool controls. Thought I'd try the inboard motor to keep all of the mechanism on one side of the fuselage. "NATS or Bust..."


(Edited to add pic of the real XTB3F-1)
« Last Edit: July 14, 2016, 04:48:58 PM by Bob Heywood »
"Clockwise Forever..."

Offline eric david conley

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Re: New Navy Carrier Model
« Reply #1 on: July 14, 2016, 04:33:41 PM »
     That is one of the prettier models that I have seen in a long time. How much weight is in the outboard wing to off set the inboard engine?
Eric

Offline Bob Heywood

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Re: New Navy Carrier Model
« Reply #2 on: July 14, 2016, 04:45:46 PM »
     That is one of the prettier models that I have seen in a long time. How much weight is in the outboard wing to off set the inboard engine?

1-1/2 oz in the tip, 14" from the fuselage centerline. When the plane is suspended from the prop shaft and the rear of the fuselage it rotates all the way down right wing low. Without the motor in place it almost wouldn't sit on the landing gear.
"Clockwise Forever..."

Offline eric david conley

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Re: New Navy Carrier Model
« Reply #3 on: July 14, 2016, 08:47:01 PM »
     Usually I put in 2 to 2.5 oz tip weight in a AMA profile and it is 20+inches out on the outside wing and the engine is on the out side of the fuselage. With the .15 planes I'll put 3oz in and go from there because the wing is so much shorter and I loose a lot of leverage with the shorter span. I also use 7+ degrees of out thrust (sometimes 9-11 degrees) on the motor or engine as these planes need all the help they can get along with enough power to overcome the out thrust and tip weight. This is the beauty of flying your plane a lot, 20 to 30 or more times to learn what you can get away with, and just to get acquainted with your plane. So fly your plane and adjust from there, it sure is a nice looking plane. I think Ron Duly made one like yours, silver and blue and flew quite well.
Eric

Offline Bob Heywood

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Re: New Navy Carrier Model
« Reply #4 on: July 15, 2016, 07:49:32 AM »
Eric,

I appreciate your comments and encouragement. One step at a time...
"Clockwise Forever..."

Online bill bischoff

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Re: New Navy Carrier Model
« Reply #5 on: July 15, 2016, 07:55:22 AM »
Very nice! Your shop is way too clean, BTW. H^^

BB

Offline Mark Knoepfle

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Re: New Navy Carrier Model
« Reply #6 on: July 15, 2016, 12:44:48 PM »
Shop?! I thought that was an operating theater! Very clean build. Beautiful plane Bob.

Mark

Offline Bob Heywood

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Re: New Navy Carrier Model
« Reply #7 on: July 15, 2016, 01:57:48 PM »
Thanks for the comments. Of course you should have seen the shop 15 min. before the photo shoot and you can't see what's outside the frame...
"Clockwise Forever..."

Offline BillCalkins

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Re: New Navy Carrier Model
« Reply #8 on: July 15, 2016, 03:41:47 PM »
I had to dig out my workbench to build my Nats entry.


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