Boom struts and striking out

Joined
13 Oct 2017
Messages
1,953
Location
solent
Visit site
We were recently given a Z Spars boomstrut for our trident, to replace the tired old kicker that I had been assured by an expert was the source of our lack of crisp performance all round, and the reason I was finding the mainsheet traveller such hard work.. Duly educated, and conviced it may help, I set about the thing with an angle grinder to shorten it to fit, made up a block and spinlock system back to the cockpit, and congratuled myself on if nothing else, how very fetching it looked.
Yesterday we went out to try it, and the difference was immediate. Everything was better, we were faster, could sail better at every point of sail, and the mainsheet and horse largely tamed. Such a difference did it make, that our previous best speed of 6.4 kts in a really good wind was bested by our performance in a lesser blow where we reached 8.5kts (both with tidal help BTW)
Such was the difference in feel and general sail-ability, that what was to have been a trip from Southampton to Newtown Creek saw us for the very first time actually break out of the Solent as we sailed on past the needles and struck out to the west. Unfortunately time forced us to turn about and head home before we reached Poole, but it was a very gratifying experience, and everything seemed so very much easier with the boom under control.
We had an absolutely great day, everything just kind of clicked together, and it was like a different boat. Maybe some of that is down to our rapid learning curve, but whatever the answer, we had one of those almost mythological sepia-toned days where we felt every second was consigned to the very best drawer of the memory bank, one of those days you break your heart that it must end, and one that leaves the soul warmed, but hungry for more.
Thank you canvas rope and wind, thank you the cradle of the Itchen, and the playground of the Solent, and thank you, the irresistible human instinct to explore.
Life is good with so much to learn, and so far to sail.
 
I'm wondering why such an improvement too, really a strut is just a fancy way of doing without a topping lift - though they ( TL's ) can be useful, ie when using the boom as a derrick for MOB or lifting heavy stuff off pontoons, tenders etc.

The previous rope purchase job must have been way under-spec and / or the cleat not holding I'd guess.
 
I'm wondering why such an improvement too, really a strut is just a fancy way of doing without a topping lift - though they ( TL's ) can be useful, ie when using the boom as a derrick for MOB or lifting heavy stuff off pontoons, tenders etc.

The previous rope purchase job must have been way under-spec and / or the cleat not holding I'd guess.

yes it just didnt hold, the strut miles more effective than the old kicker in keeping the boom tense, and it has a mechanical advantage with the pullet system the old kicker did not.
 
yes it just didnt hold, the strut miles more effective than the old kicker in keeping the boom tense, and it has a mechanical advantage with the pullet system the old kicker did not.

To be honest that just means the original must have been awful, on my 22' with similar main a very simple 4:1 purchase with a Vee cleat at the bottom gooseneck end works a treat.

Frankly I'm a bit wary of struts as they're nowhere near as simple and easy to fix at sea, and as I say I like the topping lift so as to be able to use the boom as a derrick.

Also you you may not want to have the kicker ( or vang as the Americans call it ) tight all the time; in rare conditions it can be useful to let the kicker right off, pull on the topping lift - NOT running dead before the wind - Do NOT do that or risking a ' Chinese Gybe ' where the top of the main gybes first and the main may rip at a panel - to raise the boom and ' scandalise ' and de-power the main, for example in an engine out, downwind[U] broad reach[/U] approach to a mooring against a tide - a very old trick and it works, very rarely needed but handy if you do, or just fancy practising in the right conditions.
 
Last edited:
yes it just didnt hold, the strut miles more effective than the old kicker in keeping the boom tense, and it has a mechanical advantage with the pullet system the old kicker did not.

To be honest that just means the original must have been awful, on my 22' with similar main a very simple 4:1 purchase with a Vee cleat at the bottom gooseneck end works a treat.

Frankly I'm a bit wary of struts as they're nowhere near as simple and easy to fix at sea, and as I say I like the topping lift so as to be able to use the boom as a derrick.

Also you you may not want to have the kicker ( or vang as the Americans call it ) tight all the time.

In rare conditions it can be useful to let the kicker right off, pull on the topping lift - NOT running dead before the wind or that would risk a ' Chinese Gybe ' when the top of the main flips across first, risking tearing the main at a panel.

The idea is -under control on a broad reach - to raise the boom and ' scandalise ' and de-power the main, for example in an engine out, downwind broad reach approach to a mooring against a tide - a very old trick and it works, very rarely needed but jolly handy handy if you do or just fun, no harm to practise scandalising ( depowering ) in light conditions.
 
yes, I have run the boomstrut control back to the cockpit, so it is adjustable, though we have not done so yet. I have also left the topping lift inctct just in case ;-)
The original was terrible, it just did not lock properly, and the line was knackered too. It is a long old process getting all the bits done on a 50 year old boat, I just wish I had done this one sooner.
 
We just realised we did one other modification before this much improved sail, namely removing the sprayhood. We always sailed with it folded down anyway, so I don't know that it would make a huge difference. I was also a bit more careful to try to adjust the stackpack to the sail profile
 
Top