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Bell UH-1N rubber powered helicopter build. (Read 62418 times)

Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #177 - Apr 21^st, 2017 at 5:15pm	Print Post
	4-21-2017 Thanks Tom, We shall see what happens next. Cheers, Ray K.


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Sky9pilot Administrator Offline Stick & Tissue Posts: 13270 Location: Kelso, WA 98626 USA Joined: Jan 9^th, 2010	Re: Bell UH-1N rubber powered helicopter build. Reply #176 - Apr 21^st, 2017 at 5:00pm	Print Post
	Looking good Ray. Can't wait the further tests!!! This is one amazing model! Tom

	If God is your Co-pilot...switch seats... Your attitude will determine your altitude!- John Maxwell And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #175 - Apr 21^st, 2017 at 4:58pm	Print Post
	4-21-2017 Here are the finished rotor blades, each one comes out to 2.6 grams and are fully balanced, I will be mounting these tomorrow and do a tracking test under low power. Cheers, Ray K.

	( 75 KB \| 65 Downloads )
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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #174 - Apr 20^th, 2017 at 3:42pm	Print Post
	4-20-2017 Thanks Neal, Rotor blades have been made, I should be ready to try some test runs this weekend. Cheers, Ray K.


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Kerak 5 Star Member Offline Build! Fly! Enjoy! Posts: 3522 Location: Roy, Utah Joined: Oct 5^th, 2015	Re: Bell UH-1N rubber powered helicopter build. Reply #173 - Apr 19^th, 2017 at 9:11pm	Print Post
	Really beautiful model, Ray...I'm totally amazed at your technical creativity. Neal


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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #172 - Apr 18^th, 2017 at 8:33pm	Print Post
	4-18-2017 Main rotor blades, 12 inches long each plus main rotor hub and lead lag wires will give me a total main rotor DIA of 28 inches. Cheers, Ray K.


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Sky9pilot Administrator Offline Stick & Tissue Posts: 13270 Location: Kelso, WA 98626 USA Joined: Jan 9^th, 2010	Re: Bell UH-1N rubber powered helicopter build. Reply #171 - Apr 18^th, 2017 at 8:00pm	Print Post
	Great stuff Ray, What is the diameter of the rotors? Tom

	If God is your Co-pilot...switch seats... Your attitude will determine your altitude!- John Maxwell And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #170 - Apr 18^th, 2017 at 4:37pm	Print Post
	4-18-2017 Here is the video of the Bell power up test, 350 winds, everything looks good. Cheers, Ray K. https://youtu.be/4ZdQGQZQeNQ


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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #169 - Apr 13^th, 2017 at 4:01pm	Print Post
	4-13-2017 Tests today were successful, shafts and transmission worked perfectly, no more issues here, on to making rotor blades. I will post video tomorrow. Cheers, Ray K.


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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #168 - Apr 12^th, 2017 at 3:15pm	Print Post
	4-12-2017 You got that right Tom, all repairs are completed, good as new and I did not forget the steel insert shaft this time around, had to go to work early so I will try another test tomorrow. Cheers, Ray K.

	( 89 KB \| 82 Downloads )
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Sky9pilot Administrator Offline Stick & Tissue Posts: 13270 Location: Kelso, WA 98626 USA Joined: Jan 9^th, 2010	Re: Bell UH-1N rubber powered helicopter build. Reply #167 - Apr 12^th, 2017 at 11:33am	Print Post
	Bummer Ray! Glad the damage wasn't worse than it was! I guess I'm gonna have to make a pre-flight check list to make sure I've covered all the bases before stretching that rubber band!!! Amazing that you've done the IRAN (Inspect Repair As Needed) already and are almost ready to test again. Tom

	If God is your Co-pilot...switch seats... Your attitude will determine your altitude!- John Maxwell And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #166 - Apr 11^th, 2017 at 3:42pm	Print Post
	4-11-2017 Good news is that everything is repairable and has already been repaired, no serious damage was done. The transmission held up just fine. I will be ready to try another power test tomorrow. Cheers, Ray K.

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Ray_K 5 Star Member Offline to create that which never exsisted before. Posts: 518 Joined: Feb 15^th, 2016	Re: Bell UH-1N rubber powered helicopter build. Reply #165 - Apr 11^th, 2017 at 3:39pm	Print Post
	4-11-2017 I did not know that Bob, thanks. I loaded the rubber motor for testing today and that's when disaster struck! Main rotor shaft bent, ripped out the pulley belt drive from the tail rotor and bent the tail rotor shaft, never had this happen before. I found out that I had forgot to put the stainless steel insert shaft into the main rotor shaft, without this the main rotor shaft bent over like tinfoil. Cheers, Ray K.

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pb_guy 5 Star Member Offline So I'm just a kid at heart. Posts: 2194 Location: Youbou, BC, Vancouver Island Joined: Oct 15^th, 2014	Re: Bell UH-1N rubber powered helicopter build. Reply #164 - Apr 10^th, 2017 at 11:31pm	Print Post
	I use those "loom bands" as clamps, but they deteriorate fairly rapidly, within months. ian


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Sky9pilot Administrator Offline Stick & Tissue Posts: 13270 Location: Kelso, WA 98626 USA Joined: Jan 9^th, 2010	Re: Bell UH-1N rubber powered helicopter build. Reply #163 - Apr 10^th, 2017 at 8:27pm	Print Post
	Thanks Ray...always looking for modeling material outside of the Hobby Shop. I'm sure I've seen them in the Craft Dept of Wally World! Tom

	If God is your Co-pilot...switch seats... Your attitude will determine your altitude!- John Maxwell And ye shall know the truth, and the truth shall set you free. Jn 8:32
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