Scorpion

Is there a standard size for Hub Bars, "length x width x thickness" or do all manufacturers make there own to suit themselves?

Graeme

niquenaque

No, No.

Mitch

Scorpion,

No such thing as a standard size hub bar, not since the Bensen Hub Bar anyway and I believe even that changed when he went from glider to powered gyro, from timber to alloy blades etc.

AUW and disc size/chord width, blade stiffness, has a lot to do with how a blade manufacturer produces a hub bar to suit, ie: length, thickness and pre bent bar for coning angle etc.

Cheers,

Mitch.

Brian

Also, Jeff was trialling a thicker hub bar so it depends on the maker. Once you get over 26 ft diameter and flying a reasonably heavy gyro like a 2.2 suby with a pod and a heavy pilot, you want a 1 inch thick hub bar or thicker .

__________________
Brian Reid
Pooncarie
NSW

Scorpion

The reason I have asked this question is I'm looking at accessing Titanium in a finished size for my rotor hub.

It looks like I will be going for a 27mm x 63.5mm x 600mm which is the size Rob Patroni uses for his blades and I will be using them also.

Graeme

Mitch

Sheesa!

Dont know about it's suitability or otherwise but I reckon it'll cost.

Have you a price quoted on said item?

Mitch

Scorpion

Hi Mitch,

I've been quoted $220 plus freight. Its more expensive than 6061 T6 but it's bullet proof compared to alloy.

Graeme

Mitch

That's an alright price Graeme.

What's Rob got to say about the match up..titanium hub bar and his blades?

What of the pillar block?

Interesting.

Cheers,

Mitch.

Scorpion

Mitch,

Rob has been considering using Titanium for some time but was turned off by the prices he had been quoted here.

I'm getting together a list of parts for the rotor head to see how they price up in Titanium.

Graeme

Mitch

G'Day Graham,

Excellent! Keep us posted. I will have to look up the properties of titanium now and have a 'yak' with Rob soon.

Cheers,

Mitch.