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Author Topic: Helicopter, Hiller X-2-235  (Read 1166 times)
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Ray_K
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« on: July 16, 2018, 06:05:10 PM »

7-16-2018

I have been toying with the idea of doing a geared co-axial helicopter so here is what I plan on doing, it is a Hiller X-2-235, I finished making the gear box for it already, the rest is pretty easy.

Cheers, Ray K.
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Helicopter, Hiller X-2-235
Helicopter, Hiller X-2-235
Helicopter, Hiller X-2-235
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strat-o
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« Reply #1 on: July 16, 2018, 06:08:46 PM »

This looks interesting.  Any reduction in this one?
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Ray_K
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« Reply #2 on: July 16, 2018, 06:46:49 PM »

7-16-2018

Gear box weighs 7.5 grams, reduction will be either a 4 to 1 or a 5 to 1.

Cheers, Ray K.
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Ray_K
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« Reply #3 on: July 20, 2018, 06:13:26 PM »

7-20-2018

Ok, I modified a 4 to1 gear set, made a silicone mold and casted the new gear set, came out great, set weighs in at 3 grams, it looks like I have finished all mechanical components so all I need to do now is build the model and put this stuff in it and see if it works.

Cheers, Ray K.
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Re: Helicopter, Hiller X-2-235
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piecost
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« Reply #4 on: July 21, 2018, 05:29:19 AM »

Ray, the molded gears look really neat. What material did you use?

I will follow this thread with interest
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Ray_K
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« Reply #5 on: July 21, 2018, 05:14:45 PM »

7-21-2018

Hi piecost,

I use a high strength polyurethane resin, strong stuff, better than plastic or steel.

Cheers, Ray K.
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Ray_K
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« Reply #6 on: July 23, 2018, 05:57:39 PM »

7-23-2018

Here is sheet # 1 of plans completed, working on sheet # 2.

Cheers, Ray K.
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Ray_K
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« Reply #7 on: July 30, 2018, 05:41:21 PM »

7-30-2018

Here are the revised sheet # 1 drawings.

Cheers, Ray K.
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Ray_K
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« Reply #8 on: August 03, 2018, 06:01:29 PM »

8-3-2018

Only picture I could find of the Hiller.

Cheers, Ray K.
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Ray_K
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« Reply #9 on: August 23, 2018, 09:31:23 PM »

8-23-2018

Plans are done, former sheets are done, all mechanical parts are made, after my move I will begun the build.

Cheers, Ray K.
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kittyfritters
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« Reply #10 on: August 24, 2018, 12:43:32 AM »

8-3-2018

Only picture I could find of the Hiller.

Cheers, Ray K.

I'm tempted to call it Froggy the Gremlin.  Grin

KF
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Qua sublata omnia praecepta legis
flydean1
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« Reply #11 on: August 24, 2018, 10:10:56 AM »



Cheers, Ray K.
[/quote]

I'm tempted to call it Froggy the Gremlin.
KF
[/quote]

HI-YA KIDS, HI-YA HI-YA!!! Grin Grin Grin
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flydean1
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« Reply #12 on: August 24, 2018, 10:11:31 AM »

Ray, where are you moving to?
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Ray_K
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« Reply #13 on: August 24, 2018, 06:36:21 PM »

8-24-2018

Froggy the Gremlin, I like it.  Grin Hi Flydean1 I am still going to be in the same town and state, Itasca IL.

Cheers, Ray K.
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Mark Braunlich
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« Reply #14 on: April 26, 2019, 11:57:31 AM »

Hi Ray,
Just saw this photo of a Hiller copter model on FB.  Any possibilites?
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Mark
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