Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Montauk 150 performance Trim Tabs

Posted by EJO on 08/19/14 - 11:13 AM
#17

That is a good point Garris but as mentioned B-4 a tough sales job. This is our "shallow" water inland lake cruising boat and the Admiral & I have to be able to get out of the water easy as we are getting older.
Gary as I think I mentioned B-4 my WOT speed with perfect trim is very acceptable with my Vengeance 48-17314 (13-3/8"x 14) all Stainless prop at a speed of 29.3 knots (33.7 mph) with 450 lbs extra weight on board. This is with the bottom of my anti-cavity plate equal to the bottom of my transom (the Montauk is rounded not "V"ed so I can't call it a keel). With a lighter load (myself, 1 full 6.5 gallon tank, and no gear) I've been able to clock her at 34.6 mph and just not porpoise, not a safe speed for this boat as your trim must be precise and the water like glass. Just add an other person and/or the gear and this 950lbs boat rides much better at a very acceptable top speed..
I'm not looking as much for speed as I'm looking for out of the hole speed (without getting a 2S 70 or 90 HP).
Also again smart trim tabs $110 + 1 hour install; or new SS prop $295 (cheap) with 1/2 hr install; or raise engine 1 hole (#2 from top) cost $0 and 2 hrs or more of work.
Prop install advantage would not be known to layman's eye as all looks the same but it has a high initial cost, raising engine trying to find a support that can handle my engine weight on a come-a-long/winch not easy, advantage low cost and again not known to layman's eye as all looks the same but also not known if it helps the hole shot. I currently trim all the way in to keep the boat from porpoising so for a minuscule higher top speed this a lot of work.
For those two reasons I like to do the in-expensive smart tabs that will work. With the dis-advantage of drilling holes in transom and it will get noticed, but the performance will be noticeably better and therefore an easier sale for the expence.
Garris do you have a link for the ladder?