Search found 3839 matches

by Spokaloo
Wed Oct 19, 2016 11:20 pm
Forum: Builder's Power Boats
Topic: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia
Replies: 5048
Views: 341389

Re: ST21 "SKINNYDIP" Noosa Australia

You're dipping into an area of fluid dynamics that an engineer trained in the art could spend years studying. So with that, it's a challenge to answer. In Jacques' early renderings, the spray rail runs from the bow to about 3/4 of the hull length: http://bateau.com/images/boatpics/ST21_top_600.jpg I...
by Spokaloo
Sun Oct 16, 2016 5:39 pm
Forum: Builder's Power Boats
Topic: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia
Replies: 5048
Views: 341389

Re: ST21 "SKINNYDIP" Noosa Australia

So if you get good data rates, look at Timm Schlieff's Rescue Minor build. He has a few high quality videos that show why you should consider spray rails, and a good location for them. He has one, specifically, that's a closeup of the bow underway. Water climbs up these fine hulls pretty readily, so...
by Spokaloo
Sun Oct 16, 2016 5:28 pm
Forum: Power Boats
Topic: ST21 spray rail query
Replies: 4
Views: 479

Re: ST21 spray rail query

I was very enamored with the design for a long time, and reached out to many people about them. Ran into quite a few print reports, a few of which I still have. Spoke to several builders of various tunnel stern seabrights from Atkin and other origins. Still interesting to me, but lack speed potentia...
by Spokaloo
Fri Oct 14, 2016 11:56 am
Forum: Questions before purchasing the plans and announcements..
Topic: LB22 Nina - Outboard choice
Replies: 11
Views: 1663

Re: LB22 Nina - Outboard choice

As designed, the wife and I slept many a summer afternoon nap forward with the existing layout. There is abundant room to sleep up there for 2, and a third if they are a child. Your plan to modify the rear bulkhead can work, but it is difficult to get adjusted correctly on the jig. I would build per...
by Spokaloo
Thu Oct 06, 2016 12:39 pm
Forum: Power Boats
Topic: ST21 spray rail query
Replies: 4
Views: 479

Re: ST21 spray rail query

Jacques will undoubtedly respond, but I'll throw in this tidbit. Atkin produced a wide range of these tunnel sterns. One in particular was built for a friend of his, and that friend did the classic overpowering of the hull. He wanted to go faster, and was finding the hull burrowing itself at the bow...
by Spokaloo
Thu Oct 06, 2016 12:28 pm
Forum: Questions before purchasing the plans and announcements..
Topic: LB22 Nina - Outboard choice
Replies: 11
Views: 1663

Re: LB22 Nina - Outboard choice

The boat in the top photo is probably DOUBLE the displacement of the LB22. There isn't enough beam width to complete a seating arrangement like that in the boat, no matter how you modify it. It also will be intolerant of too much weight forward, as it becomes wet in a chop. It certainly takes very l...
by Spokaloo
Fri Jun 03, 2016 6:02 pm
Forum: Builder's Power Boats
Topic: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia
Replies: 5048
Views: 341389

Re: ST21 "SKINNYDIP" Noosa Australia

Though there's not a wealth of room, I'd through bolt. Even in larger vessels, there's very little additional room in the bilge to get to the engine bolts. Even so, you get the right bolt length and get them bolted in. Plywood doesn't hold a lag very well, in my experience. Yes, it bites, but over t...
by Spokaloo
Wed May 11, 2016 12:02 pm
Forum: Builder's Power Boats
Topic: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia
Replies: 5048
Views: 341389

Re: ST21 "SKINNYDIP" Noosa Australia

Precisely, sorry I didn't make it more clear.

E
by Spokaloo
Mon May 09, 2016 11:57 am
Forum: Builder's Power Boats
Topic: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia
Replies: 5048
Views: 341389

Re: ST21 "SKINNYDIP" Noosa Australia

If your concern is the transmission spinning, it's quite common on sailing vessels that don't have feathered props.

E
by Spokaloo
Wed May 04, 2016 1:10 am
Forum: Builder's Power Boats
Topic: ST21 Hybrid Powered "SKINNYDIP" Noosa Australia
Replies: 5048
Views: 341389

Re: ST21 "SKINNYDIP" Noosa Australia

Something seen occasionally in our region is to actually connect the tiller at the rudder stock to a cable, then the cable runs however is necessary to the steering tiller. Imagine the tiller arm as being the same at the rudder and the tiller posts, with a typical steering cable. On the other end of...