G'day guys
Progressing beginner/intermediate here - 185cm, 85kg. Ultimate goal is max speed blasting in all conditions across Port Philip Bay.
Current setup is:
-Fanatic Gecko Foil LTD 135
-Severne Gator 4.7 & 5.3
-Severne Metal 140-190
-Severne RDM 400 Blue
I'm looking for a bigger sail to allow planing in a wider wind range down to around 15kn. I see a couple of options here:
1. 430 mast, NCX 6.5, run existing boom at 182cm
2. 430 mast, Turbo 7.0, run existing boom at 190cm
3. 460 mast, NCX 7.0 or 7.5, Metal 160-210
4. 460 mast, Turbo 7.5, Metal 160-210
My questions are:
-I've heard it's a bad idea to run a boom at full extension as they flex and spill power from the sail, is this true?
-Will the depth on an NCX 6.5 or a Turbo 7.0 be too wide for the profile of the 140-190 boom?
-Do we have a preference between twin-cam and no-cam sails on Port Philip bay given wind consistency?
-Are no-cam freerace sails so advanced now as to negate the advantages of twin-cam. I.E. more power down low, planing through lulls
Cheers for any tips
Hello, Hugh,
Suggest you re-post this in the Victorian forum.
In general, for your weight and sailing aim, you need the biggest sail size.
In answer to your bottom questions:
- Yes. A carbon boom manufacturer suggests getting a boom 10 cm longer than the largest outhaul setting you will use on a sail. From my own experience, using an aluminium boom on a big sail does not allow the sail to work properly so this means you should be looking at a carbon boom. If you decide to use an aluminium boom, never borrow a carbon boom for use on the same sail (once you've tried black, you'll never go back 
).
- Probably. The following might help:
My old NP X9 160/210 has an inside dimension of 43cm. I use this with NCX 6.0 and 6.5 and used to use it with NP 3-cam 6.5 and 7.5m V8's.
My 2016 Metal 150/200 has an inside dimension of 41.5cm. Only used for wave sails
My 2016 Metal 140/190 has an inside dimension of 36.5cm. Only used for wave sails.
- No rule, but based on experience of both, I prefer a cammed sail in this size.
- No opinion.
Hope this helps.
Select to expand quoteHughseppe said..
...
-Are no-cam freerace sails so advanced now as to negate the advantages of twin-cam. I.E. more power down low, planing through lulls
...
Hard to measure the power down low, but my experience is that a no-cam freerace sail, or at least my Point-7 ACXs, can actually go faster than my cambered sails on a beam reach. And no-cams make sailing a much easier enterprise. Under or overpowered they are much easier to handle. It is hard to shake the feeling that you are missing out, I am already thinking about a twin under-boom cam ACZ, but the reality is that I am happier and at least as fast and I can last longer on the water with my ACXs.
I have 150-200 enigma (wave) and 6.5 gator (boom set at 190), sail touches boom quite a bit that its already at the limit, with 140-190 it will be worse, so you need a new boom if you want bigger sails.
I run a 7.5 NCX on a chinook carbon wave boom - it's a custom size (152-202cm). Would work better with a more appropriate boom but in reality it's absolutely fine.
I'd go for option 4. The 7.5 turbo would get you going in 12knots and you could hang on Till 16. I've used the severe alloy race boom with a 8.6overdrive with no issues so while a carbon boom is nice you really need one .
I find the turbo harder to rig and de rig than my ocerdrivrs, tight luff sleeve make getting cams on and pulling the mast out tough.
Select to expand quoteHughseppe said..
G'day guys
Progressing beginner/intermediate here - 185cm, 85kg. Ultimate goal is max speed blasting in all conditions across Port Philip Bay.
Current setup is:
-Fanatic Gecko Foil LTD 135
-Severne Gator 4.7 & 5.3
-Severne Metal 140-190
-Severne RDM 400 Blue
I'm looking for a bigger sail to allow planing in a wider wind range down to around 15kn. I see a couple of options here:
1. 430 mast, NCX 6.5, run existing boom at 182cm
2. 430 mast, Turbo 7.0, run existing boom at 190cm
3. 460 mast, NCX 7.0 or 7.5, Metal 160-210
4. 460 mast, Turbo 7.5, Metal 160-210
My questions are:
-I've heard it's a bad idea to run a boom at full extension as they flex and spill power from the sail, is this true?
-Will the depth on an NCX 6.5 or a Turbo 7.0 be too wide for the profile of the 140-190 boom?
-Do we have a preference between twin-cam and no-cam sails on Port Philip bay given wind consistency?
-Are no-cam freerace sails so advanced now as to negate the advantages of twin-cam. I.E. more power down low, planing through lulls
Cheers for any tips
Hi,
I own some 2019 Turbos and NCX, although different sizes.
NCX for me seems to have less grunt in the lowwind range, but is good in high winds.
Turbos are quite good in the low wind range, but with enough downhaul also open up well in high winds. Turbos have a wider wind range. I (79kg) recently used my 9.2 (!) in 18kn wind (when the wind picked up and I was too lazy to change sail) and although that was really at the limit of what I could handle, it was extreme fun and one of the best sessions I ever had.
Anyway,in my experienceTurbos have a wider wind range than NCX andI would clearlyrecommend Turbos if you are looking for low-wind power and planing through lulls, but also want to handle gusts.
Turbos are cut rather flat, i.e. not a deep profile, so it might work on a 140-190 boom.
As for stability, only extend a carbon boom fully. I would never extend an aluminum boom to the max. It can break easily, or bend in a gust which has the same effect like releasing outhaul tension - and that's exactly what you don't wantin a gust.
regarding sail size, I think with your weight and a 7.0 you will still have difficulties to get planing in 15 kn. If 15-20kn Wind is your target wind range and you like blasting with good power in the sail, for your weight I would clearly go for option 4 (Turbo 7.5). However then your gap between your 5.3 Gator and 7.5 Turbo is far too big and you might need also a Turbo 6.5 for the ~19-24kn winds, which then requires a 430 mast...
Thats always the windsurfers dilemma and the reason why I have 10 sails (Gators, NCX, Turbo, Overdrive) to cover 9-50kn wind and different water conditions :-).
As for rigging Turbos - two cam sails are easy to rigg:
1) Insert mast above cambers, apply full downhaul
2) Add boom with full outhaul
3) release 15cm downhaul
4) Put cambers onto mast (should be easy then)
5) Full downhaul again and adjust outhaul for your needs.
de-rig:
1) Remove boom
2) release downhaul 15cm and help the cams to pop off
3) fully release downhaul
best,
mariachi76
Select to expand quoteHughseppe said..
My questions are:
-I've heard it's a bad idea to run a boom at full extension as they flex and spill power from the sail, is this true?
-Will the depth on an NCX 6.5 or a Turbo 7.0 be too wide for the profile of the 140-190 boom?
-Do we have a preference between twin-cam and no-cam sails on Port Philip bay given wind consistency?
-Are no-cam freerace sails so advanced now as to negate the advantages of twin-cam. I.E. more power down low, planing through lulls
Cheers for any tips
I'm about same weight and use to sail at Port Philip Bay. For 15knots and above go for the 7.0m NCX, but get a wider and longer boom (160-). It's easier to progress with a no cam sail. You will want to get a smaller board sometime soon, about a 115l for the 7m.
'
Id recommend the 7.5 Turbo for the conditions and board, but to complicate things further max sail size for RDM recommended by Severne is 7.0 and you don't want to have to double up on extensions etc. I used to run a 2015 NCX 7.0 on a 140-190 metal wave boom, with no problems and I thought it was fine until I bought a 150-200 enigma.
My big sail is now a 7.0 Turbo GT with a FOX 105. I would consider that to be 17-22 knots flat water blasting. The NCX is a great sail, but the the Turbo has a bit more bottom end and is better for foiling. Neither is indestructible like your gator though.
