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Author Topic: Sakitumi-E  (Read 844 times)
John Rist
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« on: April 06, 2017, 07:31:27 PM »

I have started my Sakitumi-E.  The wing and elevator are ready to be covered.  I am waiting on some 1/32 plywood to skin the fuselage for stiffness. I should be able to remove wood from the core of the fuselage to keep the weight the same.

I do have one question.  Should I offset the rudder any at all?


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« Reply #1 on: April 06, 2017, 08:51:41 PM »

Follow the plan or go to Walters site and look at construction photos. Devil
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« Reply #2 on: April 06, 2017, 10:07:20 PM »

Follow the plan or go to Walters site and look at construction photos. Devil

Unless I am blind the plans don't show that view of the rudder.  Walter's build log don't cover it either.  Pictures of his finished model aren't totally clear either.  It appears that their may be some offset but not sure.  I am guessing that some offset would be OK.
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« Reply #3 on: April 06, 2017, 11:51:15 PM »

Normally the rule is to put in just a barely perceptible amount of rudder offset, so that it isn't offset the other way, if trying to set it centered.
They say too much offset makes for poor line tension in the overheads....
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« Reply #4 on: April 07, 2017, 04:02:58 AM »

I didn't use any offset, and couldn't be happier with the way mine flies.
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« Reply #5 on: April 13, 2017, 08:41:49 AM »

In order to stiffen the fuselage I glued 1/32 plywood on either side.  To keep the weight down I drilled holes in the original fuselage.  I used Tightbond glue and weights to glue the sides on.  I also installed a fiberglass motor mount that is laminated to the plywood motor mount ring that came with the kit.  The finisher fuselage weighs 8.4 oz and is stiff as a base ball bat.  Beings it is now plywood all over it will take very little paint to make it look good.


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John Rist
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« Reply #6 on: April 17, 2017, 09:19:15 AM »

Spinners for an electric setup, for me,  has always been a pain in the rear.  Huh   I use pusher props and have had to cut out the slots for the LH prop (ugly).  You can buy LH spinners but they are $$$$$. Spinners also add rotating mass which is not a good thing.

So I came up with the idea to make a round disk with holes in it for cooling.  Fashion a noise block to round out the noise.  once all painted black I think it will look good and work well.  


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« Reply #7 on: April 17, 2017, 09:30:13 AM »

John,

WOW!

Nice workmanship!  Hoff

Nice build and great holes.

I'll be looking!

CB
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« Reply #8 on: April 18, 2017, 12:48:08 PM »

Making sure tail feathers are square in every direction.  y1


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« Reply #9 on: April 18, 2017, 07:24:25 PM »

Vertical all squire with just enough outward offset to insure it's not in.  


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« Reply #10 on: April 19, 2017, 04:37:16 PM »

Temporally assembled to see what it looks like.  I am just realizing this is a big airplane.  It should fly great!   


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« Reply #11 on: April 19, 2017, 05:22:36 PM »

Temporally assembled to see what it looks like.  I am just realizing this is a big airplane.  It should fly great!   

John,

Looking really good.  Hoff

I made Sakitumi lettering for someone can't remember who?

Send me a PM or e-mail with your address and color, size, and I'll get some Sakitumi lettering out to you.

CB
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"I look at the Forum as a place to contribute and make friends, some view it as a Realm where they could be King."

Owner of CFC Graphics. "Model Airplane Graphics from a Model Airplane Builder."

"I'd like to build a reputation, not be given one."
X-Files quote

"Ya gotta love it when a plane comes together."

Proverb 11.9  "With his mouth the Godless destroys his neighbor..."

"So popular, they named a television series after me."

"Perhaps the greatest challenge in modeling is to build a competitive control line stunter that looks like a real airplane."
David McCellan, 1980.

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« Reply #12 on: April 20, 2017, 08:56:27 AM »

Looking good.  I watched Dan McEntee fly his in St Louis and it looked great.  Of course it was IC powered.
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« Reply #13 on: April 20, 2017, 04:57:20 PM »

Looking good.  I watched Dan McEntee fly his in St Louis and it looked great.  Of course it was IC powered.

John, do you by any chance know what Dan's Sakitumi weighs as a gasser?
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« Reply #14 on: April 21, 2017, 06:06:06 AM »

John, do you by any chance know what Dan's Sakitumi weighs as a gasser?

I haven't started on my nitro version yet, but my electric is 36.7 oz without the battery... Probably has 65-70 flights on it now. Still loving it!
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Bill Davenport
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« Reply #15 on: April 21, 2017, 06:26:54 AM »

I haven't started on my nitro version yet, but my electric is 36.7 oz without the battery... Probably has 65-70 flights on it now. Still loving it!

Thanks Bill.  I haven't  got a weight on mine yet but this gives me a target weight to work with. 
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John Rist
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« Reply #16 on: April 21, 2017, 11:21:39 AM »

John, do you by any chance know what Dan's Sakitumi weighs as a gasser?

Contact him, he is on here once in a while.
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I was always taught to respect my elders, but it keeps getting harder to find one.
Today I broke my personal record for most consecutive days lived.
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« Reply #17 on: April 21, 2017, 12:54:44 PM »

Thanks Bill.  I haven't  got a weight on mine yet but this gives me a target weight to work with. 

Just so you know, that was the weight with EVERYTHING, RTF but no lipo...
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