By coincidence 10 minutes ago I sent an email for a quote for a c/f tube. Its a company I have bought custom tubes from for several years now and have always been very satisfied. (no connection to me)

They are http://www.Tri-cast.co.uk

Ian P

That's a serious bit of composite tubing – your friend will likely need deep pockets. Is carbon fibre necessary, would glass fibre do the job?

I would guess you'd be looking at a custom made tube, either filament wound or laid up from pre-preg sheet, if you can find a company that bcan do that sort of size you might have to alter the diameter a bit to make use of an existing former, a custom mandrel wouild be very expensive – ours were and they were only about 150mm diameter.and shorter than you're looking for.

I fully realised that Michael

.

My apologies, Keith … no slight intended.

It's only a fine line between 'necessary' and 'very desirable'

MichaelG.

.

Oops … that link seems to be wrong … Try this

Would think the "Meat" is either honeycomb or extruded (Blue) foam.

Regards Ian.

.

There is a company in Runcorn called Sigmatex. (I did some work for them back in my sparking days)

They weave CF in a large number of widths and weights from something resembling fine silk to course mesh. I remember them telling me at the time that they supplied 90% of the F1 teams and a number of aircraft manufacturers. I also remember them telling me that it was also used to produce helicopter blades and to do this the weave layers were placed in varying directions and a mixture of course and fine fabrics.

They seemed quite open and approachable people. You may be able to purchase a 'roll end' off them and combined with a former make your own. ….. Possibly.!

Failing that, I would be surprised if they were not able to point you in the right direction of such a tube supplier.

Regards, Nick