Cruisers Forum
 


Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 13-12-2017, 16:23   #31
Senior Cruiser
 
newhaul's Avatar

Cruisers Forum Supporter

Join Date: Sep 2014
Location: puget sound washington
Boat: 1968 Islander bahama 24 hull 182, 1963 columbia 29 defender. hull # 60
Posts: 9,581
Re: 30ft powered cruiser with an extra outboard motor?

The interesting part of this thread is that we now have 31 posts and the op has not posted anything beyond the originating post.
__________________
Non illigitamus carborundum
newhaul is offline   Reply With Quote
Old 13-12-2017, 21:42   #32
Registered User
 
Scout 30's Avatar

Join Date: Oct 2014
Location: Florida
Boat: Scout 30
Posts: 3,107
Re: 30ft powered cruiser with an extra outboard motor?

Quote:
Originally Posted by Cheechako View Post
a 25hp outboard will easily get the cruiser to hull speed. That is defined by the waterline length. Probably about 7 knots. Actually an 8HP will do the same thing. We tested an 8hp hi thrust on a 30 ft aluminum cruiser in a light wind chop and it moved great. Not sure if one of your main engines at idle will burn any more than the 25 hp or not.
This is just BS. I've got a 30' displacement hull trawler with a 43 hp diesel. 8hp will not get my boat anywhere close to hull speed. You seem to think that a planing hull as easily driven through the water as a displacement hull. The opposite would be true. As a planning hull approaches hull speed it is trying to climb over the wave it is creating which requires much more horsepower.
Scout 30 is offline   Reply With Quote
Old 15-12-2017, 17:08   #33
Senior Cruiser

Cruisers Forum Supporter

Join Date: May 2013
Location: Oregon to Alaska
Boat: Wheeler Shipyard 83' ex USCG
Posts: 3,038
Re: 30ft powered cruiser with an extra outboard motor?

Any outboard I've seen uses more fuel than an inboard gas and much more than an inboard diesel. Unless it's a fairly new gas outboard, or it's a diesel outboard, it's also unreliable. About the time you need it, it won't run.
Lepke is offline   Reply With Quote
Old 16-12-2017, 07:27   #34
Registered User
 
anacapaisland42's Avatar

Join Date: Aug 2009
Location: Ontario, Canada
Boat: Challenger 32 1974
Posts: 503
Images: 3
Re: 30ft powered cruiser with an extra outboard motor?

There are 3 conditions necessary to have a long living reliable outboard
1) Only use premium no ethanol gas
2) use premium 2 stroke oil (AMSOIL)
3) Buy a Yamaha
Bill



Quote:
Originally Posted by Lepke View Post
Any outboard I've seen uses more fuel than an inboard gas and much more than an inboard diesel. Unless it's a fairly new gas outboard, or it's a diesel outboard, it's also unreliable. About the time you need it, it won't run.
anacapaisland42 is offline   Reply With Quote
Old 16-12-2017, 09:15   #35
Senior Cruiser
 
newhaul's Avatar

Cruisers Forum Supporter

Join Date: Sep 2014
Location: puget sound washington
Boat: 1968 Islander bahama 24 hull 182, 1963 columbia 29 defender. hull # 60
Posts: 9,581
Re: 30ft powered cruiser with an extra outboard motor?

Quote:
Originally Posted by anacapaisland42 View Post
There are 3 conditions necessary to have a long living reliable outboard
1) Only use premium no ethanol gas
2) use premium 2 stroke oil (AMSOIL)
3) Buy a Yamaha
Bill
nope my Honda 4 stroke uses half the gas . My Suzuki 4 stroke same thing .
Best part no dealing with mixing oil and gas.
__________________
Non illigitamus carborundum
newhaul is offline   Reply With Quote
Old 16-12-2017, 10:44   #36
Registered User
 
anacapaisland42's Avatar

Join Date: Aug 2009
Location: Ontario, Canada
Boat: Challenger 32 1974
Posts: 503
Images: 3
Re: 30ft powered cruiser with an extra outboard motor?

My Yamaha is 33 years old, has powered our 32' sailboat thousands of miles in fresh and salt water. Spent 1 winter frozen in, total service..a couple of spark plugs, 2 impellers, ......you see why I'm attached to Yamahas
Bill

Quote:
Originally Posted by newhaul View Post
nope my Honda 4 stroke uses half the gas . My Suzuki 4 stroke same thing .
Best part no dealing with mixing oil and gas.
anacapaisland42 is offline   Reply With Quote
Old 16-12-2017, 10:48   #37
Senior Cruiser
 
newhaul's Avatar

Cruisers Forum Supporter

Join Date: Sep 2014
Location: puget sound washington
Boat: 1968 Islander bahama 24 hull 182, 1963 columbia 29 defender. hull # 60
Posts: 9,581
Re: 30ft powered cruiser with an extra outboard motor?

Quote:
Originally Posted by anacapaisland42 View Post
My Yamaha is 33 years old, has powered our 32' sailboat thousands of miles in fresh and salt water. Spent 1 winter frozen in, total service..a couple of spark plugs, 2 impellers, ......you see why I'm attached to Yamahas
Bill
oh I have an old tohatsu 8 horse 2 stroke from the early 70's still running strong.
My 10 horse Honda is similar aged runs great and uses about half the fuel as the tohatsu does.
__________________
Non illigitamus carborundum
newhaul is offline   Reply With Quote
Old 16-12-2017, 13:06   #38
Registered User
 
Scout 30's Avatar

Join Date: Oct 2014
Location: Florida
Boat: Scout 30
Posts: 3,107
Re: 30ft powered cruiser with an extra outboard motor?

Quote:
Originally Posted by anacapaisland42 View Post
There are 3 conditions necessary to have a long living reliable outboard
1) Only use premium no ethanol gas
2) use premium 2 stroke oil (AMSOIL)
3) Buy a Yamaha
Bill
I couldn't agree more & I put my money where my mouth is. My previous 25hp Honda was nothing but problems. I finally sold it & bought a 25 hp 2 stroke Yamaha & in almost 10 years it's been flawless. The Yamaha burns so little fuel that it's really not an issue.
Scout 30 is offline   Reply With Quote
Old 16-12-2017, 13:47   #39
Registered User
 
Cheechako's Avatar

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 23,678
Re: 30ft powered cruiser with an extra outboard motor?

Quote:
Originally Posted by Scout 30 View Post
This is just BS. I've got a 30' displacement hull trawler with a 43 hp diesel. 8hp will not get my boat anywhere close to hull speed. You seem to think that a planing hull as easily driven through the water as a displacement hull. The opposite would be true. As a planning hull approaches hull speed it is trying to climb over the wave it is creating which requires much more horsepower.
Well we will have to disagree then. This was about a V bottomed aluminum boat I was actually testing, it did occur, as it did on the smaller versions in testing. We tested every boat on the water before delivery.. A trawler has far more wetted area than most flat bottomed planing hulls. Try rowing a canoe sometime. Then add a heavy 4 ft keel and let us know how it goes. or try dragging a 2 x 8 thru the water, then tie a bucket to it, it's common sense.. Generally, The "climbing over the wave" part occurs at the very end of hull speed in order to plane a boat.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 22-12-2017, 16:46   #40
Registered User
 
Comix Bay's Avatar

Join Date: Feb 2016
Location: Comox, BC
Boat: Lazy-Boy, fold out
Posts: 116
Re: 30ft powered cruiser with an extra outboard motor?

My son has a 23.5 Bayliner Trophy. Main power is 5.7 Merc in/out, kicker 9.9 Merc. All electric rigged to main helm station. Kicker pushes at plenty over 4 knots when required at a substantial fuel saving. Hes a big fishing fan (nut)!!! There was a 31 Ranger Tug on market last spring in Nanoose Bay that had a 25 Merc mounted on port side as a kicker. Quite a different site
Comix Bay is offline   Reply With Quote
Reply

Tags
cruise, cruiser, motor, outboard

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Attaching extra solar panel to batt for a bit of extra humph simonpickard Electrical: Batteries, Generators & Solar 18 26-02-2015 23:28

Advertise Here


All times are GMT -7. The time now is 03:11.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.