15
« on: May 29, 2022, 04:07:46 AM »
I installed mine in 2014, so all I have are some (cryptic) notes and my dodgy memory to rely upon! And I am not an engineer...
Basically - talk to Garhauer (Mark?). They know their stuff and will give the best advice.
The good news - I sent bent wire mast profiles, exchanged a couple of emails with Mark, and what I got back was exactly what I requested, built to the usual Garhauer high quality standard. Very happy with it.
I did ask for the plates on the mast to be made 2" larger than usual, to wrap further around the mast; Mark agreed to do this. I don't know if it was necessary, but a nearby boat had a (non-Garhauer) rigid vang torn out of the mast, which to be honest freaked me out! I was thinking of how you would repair a compromised mast like that...anyhow, I reckoned instead of relying solely on the threads of the bolts to hold the vang in place, the bolts themselves would be stronger. It's shocking to me how thin our masts are, and how soft the Al...
One issue with the P323 is that the available height between the deck plate and boom does not result in an optimal vang angle/placement. I did an analysis of the vang angle on other boats, seeing vangs typically in the 34-38 degree range - so the worked with Mark to get the optimal dimensions. My results:
Boom Angle: 30º
Upper tube: 30"
Inner tube: 24.5"
Total uncompressed 52 1/4"
Total Compressed 48"
I discussed this with Mark, and he explained that this length is as short as it can be - even though the angle is not optimal. I validated this, in that compressing the vang shortens it by 4 " instead of my target of 6" - but make it any smaller and it will not be able to compress. This gives a boom vang angle of 32º when compressed - not ideal, but adequate.
I hope this helps!