UH-1H: How many degrees of travel in the collective?

[jrsteensen]

2 part question here:

 

How many degrees of travel does the collective have? Start and finish? Assume an imaginary line traveling forward from the collective pivot point along the floor of the cockpit is your 0 degrees.

 

I'm guessing 40* lowest position, and 85* as the highest position?

 

 

Part 2: How many degrees rotation does the twist grip/throttle have total?

[BIGNEWY]

have a look here not sure if this will help you, Remembered seeing this being mentioned in this thread

 

http://forums.eagle.ru/showpost.php?p=1582425&postcount=2

 

 

 

 

all credit to Krebs20

Edited July 25, 2013 by BIGNEWY

[jrsteensen]

Works perfect! Thanks - now just to find the twist grip rotation degrees.

[HuggyBear]

This is a video of the throttle in a Bell 412, but it is very similar to the UH-1H.

 

UUfJn4Xesg4

 

- Bear

Edited July 2, 2013 by HuggyBear
youtube embed

[UH1Fan]

2 part question here:

 

How many degrees of travel does the collective have? Start and finish? Assume an imaginary line traveling forward from the collective pivot point along the floor of the cockpit is your 0 degrees.

 

I'm guessing 40* lowest position, and 85* as the highest position?

 

 

Part 2: How many degrees rotation does the twist grip/throttle have total?

 

1. Looks like 40 deg is the bottom range. The maximum travel is 12.2" I assume from the end of the collective.

 

2. 205 deg rotation for the throttle.

 

Cyclic displacement is +/- 7.2"

 

Pedal displacement is +/- 3.7"

 

I measured a 1969 Bell 205 last fall and will post all the measurements i have as soon as I can get them into a legible form.

 

One example: Panel Measurements. I'm planning to get a CAD drawing done for a panel. Laser cut from steel the quote was about $60.

 

39 3/4" Wide

15 5/8" High (at center)

11 1/4" High (Rt side)

13" High (Lft side)

 

Hope this helps.

[Flagrum]

1. Looks like 40 deg is the bottom range. The maximum travel is 12.2" I assume from the end of the collective.

 

2. 205 deg rotation for the throttle.

 

Cyclic displacement is +/- 7.2"

 

Pedal displacement is +/- 3.7"

 

I measured a 1969 Bell 205 last fall and will post all the measurements i have as soon as I can get them into a legible form.

 

One example: Panel Measurements. I'm planning to get a CAD drawing done for a panel. Laser cut from steel the quote was about $60.

 

39 3/4" Wide

15 5/8" High (at center)

11 1/4" High (Rt side)

13" High (Lft side)

 

Hope this helps.

 

Do you also have the length of cyclic and collective - to put the displacement measurements into context?

[UH1Fan]

Cyclic - from floor to base of grip 51 cm

 

Collective - from pivot point in floor to top of throttle friction - 45 cm - 4.5cm dia

 

Throttle - length 12.5 cm

 

Note- these aren't manufacturer specs, just my own measurements supplemented by a hovercontrol.com member.

[jrsteensen]

Great info guys!

 

I took the info and designed a collective and Warthog HOTAS stick extension, which are available as kits. (We send you plans, parts list, and the 3D printed and/or laser engraved components.)

 

Stick Extension Thread: http://forums.eagle.ru/showthread.php?t=110419

 

Collective (with Huey Seat Thread: http://forums.eagle.ru/showthread.php?t=110446

 

 

Collective kit isn't quite available, we are still building the prototype, but the stick extension is.

[Krebs20]

It seems you have the information you need. You just over looked one small detail. The floor is 5.45 degrees. I took the measurements from ground level. If you round the numbers the collective will travel 35 to 65 degrees.

 

Nice prototype!