Yes and No. You can rig it but the cams will not contat the mast enough to make the sail rotate properly. Obviously cams work by batten tension pushing the cam against the mast which makes it roll around the mast.

To make it work properly all you'd have to do is measure (roughly) the diameter of the recommended mast at the points the cams touch it.... and the diameter of the skinny.
Then make up the difference with a plastic shim about 5-20mm thick in each cam. line it with something like Coles bag plastic but thicker and it will be slippy enuf to rotate properly.

BTW the old GTX's were very non mast specific (for a gaastra that is amazing) I had about a 2001-2 model 7.5, and rigged it on an oldish Powerex 30% carbon. It set awesome and racers could not believe how well (I'm a wave sailor so I didn't care it was just my lite wind muck around sail on a FW board). Many race sails set crap on anything less than a 75% fromthe correct recommended manufacturer

I have Naish 6.0 Stealth that only rigs on an RDM - Cams rotate

Also have anm Ezzy 5.7 Infinity - cams rotate fine.

Bottom line - if the sail is designed for RDM then no problem.


-J

Nebs,

for the Ezzy 5.7 Infinty the RDM makes a huge difference in both top and bottom end performance.

I was always very sceptical about mast performance until I experienced the difference the RDM mast makes over a conventional mast for this sail (which can legitimately - at least as recommende by the manufacturer - be rigged on a normal or RDM mast).

On a normal mast the sail has no bottom end and limited top end (very narrow range). On an RDM great bottom end, huge range (17-34 knots) and good control.

- Mast makes a difference - but the sail needs to be designed for it.

- J

quote:

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Originally posted by drjukka

Nebs,

for the Ezzy 5.7 Infinty the RDM makes a huge difference in both top and bottom end performance.

I was always very sceptical about mast performance until I experienced the difference the RDM mast makes over a conventional mast for this sail (which can legitimately - at least as recommende by the manufacturer - be rigged on a normal or RDM mast).

On a normal mast the sail has no bottom end and limited top end (very narrow range). On an RDM great bottom end, huge range (17-34 knots) and good control.

- Mast makes a difference - but the sail needs to be designed for it.

- J

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17-34 knots? You're joking, right? Your 5.7 can handle 34 knots? Yowza!

Mine maxes out at about 25 (standard mast), anything more and it gets a life of its own, grows horns and hooves if you know what I mean!

If only skinnies weren't so expensive

Originally posted by TelecomGreg

Last Saturday Troppo and I were both using 07 5.7m KA Kaos
He is using a Gaastra RDM his sail is fuller and a lot more powerful
I use an Ezzy RDM my sail is flat and gutless???
We swapped rigs and confirmed this
Any Ideas???

Check the stiffness of both masts and compare, I would guess that the Ezzy is stiffer or you didn't downhaul it enough

Paul

Nebs,

Yes - 34 knots!!!! for the 5.7.

I have footage of me at Sandy Point in a NW blowing 25-38 knots with me sailing the ezzy 5.7 - and the chop was savage - short and sharp.!!

The rdm mast make a HUGE difference in the range of this sail compared to rigging on a std mast - where the sail handles like "A DOG" - and that is being complimentary.

For reference I was sialing the 5.7 Ezzy last Sat (Easter Sat) at Manly with gusts coming through at 30+ knots.

- J

i was on a 5.7 Kaos.
with standard powerex.

the guys i know that use the skinnies on the smaller sails like them a lot.