The key to avoid work hardening is how you fasten the hose to the
airframe - and now that I think about it, I am not sure how this is
done! Adel (sp?) clamps, I think, are commonly used, but this would
require a number of holes in the tunnel side and or the fuselage
bottom to bolt to. Also, how frequently does aluminum tubing need to
be clamped? Every foot?
Brian
> Which is cheaper than good quality flexible hose! The fittings are the
> expensive bit.
> Aluminium will work harden under flexing/vibration. In the hardened state
> it is more prone to cracking. But 5052-0 is commonly used for fuel/oil
> lines etc.
>
> Duncan McF.
>
> On Saturday, August 10, 2002 9:16 AM, KarkelB@aol.com
> [SMTP:KarkelB@aol.com] wrote:
> >
> > .. with regards to the aluminium lines, i don't believe vibration
> cracking
> > would be problem as it soft aluminium being used and its able to flex.
> I'
> > will be using it ofcourse after consulting with my inspector and europa
> guru
> > Graham singleton. The type to be used is 5052, 3/8 o.d. Costs about ?2.70
> a
> > foot from light aero.
> >
> > regards Karim.
|