allen hydroplane plans

dolluper

Captain
Joined
Jul 19, 2004
Messages
3,904
I was wondering if anyone out there knows if allen boat building plans if they are still around or out of business.I built my first hydro 33 years ago and used their plans it still floats and I want to upgrade it for my nephew
 

Winger Ed.

Chief Petty Officer
Joined
Mar 24, 2004
Messages
649
Re: allen hydroplane plans

Sounds like the engine has one of those agravating little 'tiker with it till it runs right' sort of things.<br /><br />Maybe a little snot ball in the carbs, clogged jet, maybe a reed sticking, loose fuel line, its got to be something simple.
 

dolluper

Captain
Joined
Jul 19, 2004
Messages
3,904
Re: allen hydroplane plans

Hydro looks great!!! my Keal broke off when I hit a log , sponson runners bad condition I'm running a 50 merc but it's a 7footer real fast 63 mph plus That other prob is the float leaking or neddle sticking I'm sure be all dolled up this weekend maybe you could post a keal design and I could just scale it down runners too maybe thanks a bunch
 

Winger Ed.

Chief Petty Officer
Joined
Mar 24, 2004
Messages
649
Re: allen hydroplane plans

There's a sight called 'Antique Hydroplanes' It has a bazillion pictures of old hydros. Most are the big ones, but you could probably get a idea of what you want.<br /><br />I use a pair of air traps comming off the back of the sponsons and have a turn fin on each one on my 'D' hydro. This one has air traps on both sides, but only one turn fin incorporated at the rear of the Port sponson.<br /><br />A large 3/16ths or 1/4 inch thick Aluminum fin directly in front of the engine about 1/3 of the way forward works well too.<br /><br />For one on the rear of a sponson, Clark Craft, the kit and plan boat co. sells one that's pretty decent.<br /><br />If ya want one that bolts under the hull and get stuck let me know. I've got Alum. angle stock left over from this boat, and could find a piece of plate at the local scrap yard, then cut and weld one up to flush mount if ya can't find one somewhere else. It ain't no big deal, it shouldn't be much bigger than about the size of half a dinner plate. <br /><br /><br />Do a search for hydroplanes, there are several sights for the smaller class boats that have lots of pictures. That'd probably do ya the most good in gettin ideas for re-doing yours.<br /><br />Ed.
 

flashback

Rear Admiral
Joined
Jun 28, 2002
Messages
4,010
Re: allen hydroplane plans

Dolluper, I built a scat cat about 45 years ago, still have the boat but the engine is long gone. anyway try this website for plans.... free boat plans
 

dolluper

Captain
Joined
Jul 19, 2004
Messages
3,904
Re: allen hydroplane plans

Thanks guys it very usefully info now I've got what I need to doll it all up for the nephew those sites were great spent hours surfin lots of great stuff thanks again
 
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