Hi Keef i use RDM masts in my Loft Blades for over 2 years now with no problems the sails are designed around the RDM's,surprised that you have broken 2 RDM's was there any cam wear into the mast? and where abouts did they break up in the top half?

What type of cams do you have in your sails the original NP or did you replace them with RDM cams?
Leaving the sails in the sun might be a problem but i've had my sails sitting in temps of around 45 deg although only for a few hours and not all day.

Mark _australia said...

100% race masts (SDM) break commonly, but quality RDMS seem almost unbreakable.

Were they secondhand so you don't know their history? Could have been dropped and therefore weakened - doesn't take much to fracture carbon.

What brand?

the cams are the standard big rs 2008, there great and fit the skinny masts like a glove, i have a KA concept 5/0 with two mini cams and I use a fat gasstra cam just above the boom,
the masts were brought from new but as mark says it only takes a bump and its a fracture
what i have noticed is the sail cloth they use in the n/p,KA concepts , and i think the loft blades holds the heat and maybe attract the heat on the beach maybe because they dont hold any water

Sorry forgot to ask too - how old?

KA masts in KA sails should be good.

Even if out of warranty you can claim form the manufacturer as thye didn't last as long as a reasonable person woudl expect the average mast to last --------- if they haven't been dropped or abused

Hi Keef,
Black luff pockets left in the sun will kill a mast. Anything over 80 degrees C and epoxy will start to break down.
Tim

airsail said...

Hi Keef,
Black luff pockets left in the sun will kill a mast. Anything over 80 degrees C and epoxy will start to break down.
Tim

tim the luff isnt black , its a light colored stiff plastic and it does get hot
, not like the normal dacron when its wet its cool
gybesports i have made a turbon and there is negative mast extention , but you are rite the mast is stiff, i hope this new mast doesnt break otherwise ill be looking for a KA with a lifetime warranty