NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Douglas Denny
Date: 2010 Jan 20, 01:07 -0800
Hello Wolfgang,
Just to be clear could you please confirm these figures are meaning what I think they mean?
You say:
> The HR1 uses Aluminium tubes
> (all dimensions [mm])
>
> inner tube 54x1 235 long
> interm. tube 58x1 225 long
> outer tube 62x1 222 long
------------------
Can I make sure you mean:
54mm inside diam of the inner tube, 56mm outer diam of the inner tube.
58mm inner diam of the intermediate tube, 60mm outer diam.
62mm inner diam of outer tube, 64mm outer diam.
Thus giving a clearance of 1mm between tubes. If so, this seem quite a big clearance and I would expect the tubes to be quite a slack fitting.
Can you measure the diameters to within 0.1mm?
Douglas Denny.
Chichester. England.
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