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06-17-2014, 08:08 PM
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#1
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Senior Member
City: Florida
Vessel Name: Lady Di
Vessel Model: 2012 Beneteau Swift Trawler 44
Join Date: Mar 2014
Posts: 450
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Newbies Buying New Dinghy
Newbie here.
We are going to buy a dinghy for our ST 44 and need some help, please.
Here are some ideas and other motivations:
The electric boom on the fly can hoist, so the dealer states, about 264 lbs.
The total length of the fly space where the dinghy goes is about 10 1/2 feet.
A 2 occupant model will work for us.
We'll be more likely tying up at marinas but would like a dinghy for those occasions where we anchor out, and other usage like traversing areas of minimal depths.
We'd like to buy quality (Hypalon?) for longevity and service. Boat buddy has suggested an aluminum floor on the RIB.
Really like the propane engine to avoid carrying gasoline.
Will we need any customized rigging for attaching to the davit and lifting? If so, does the supplier usually handle this?
Any suggestions are greatly appreciated.
__________________
"we have no schedule and we're sticking to it!"
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06-17-2014, 08:33 PM
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#2
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Guru
City: Sarasota/Ft. Lauderdale
Join Date: Apr 2014
Posts: 5,438
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I'd go with either a hypalon RIB with a fiberglass hull on perhaps an aluminum skiff that you add a thick, soft rub rail to. I'd stick with a gas engine to get more HP.
170# isn't much of a davit. A ten foot RIB weighs around 150# with out an engine.
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06-17-2014, 08:34 PM
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#3
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Guru
City: Longboat Key, FL
Vessel Name: Bucky
Vessel Model: Krogen Manatee 36 North Sea
Join Date: Oct 2009
Posts: 5,196
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My 9 ft. Caribe with 9.9 HP 2 cycle Merc. is just under that weight. An alum. bottom would save a bit more, but the 4 stroke engines are heavier. Hopcar, right here on the Forum can help you with the weight and cost of the Lehr propane units. My guess is that most aluminum bottom inflatable dinghies with a 9.9 Lehr would still be under 200, with a 5 HP Lehr, close to your 170 lbs.
__________________
Larry
"When life gets hard, eat marshmallows”.
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06-17-2014, 08:39 PM
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#4
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Guru
City: Georgia
Join Date: Jul 2012
Posts: 951
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You'll need at least a three point sling, supplied by the manufacturer for a price I'm sure. Go with what they suggest or supply with the dinghy. A homemade sling is probably not worth the potential. Also a cradle to stow and secure the dinghy on, tie downs, cover, oars.....the price tag keeps growing. I've seen rod holders and a bimini top on some.
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06-17-2014, 09:45 PM
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#5
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Senior Member
City: Florida
Vessel Name: Lady Di
Vessel Model: 2012 Beneteau Swift Trawler 44
Join Date: Mar 2014
Posts: 450
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Correction which I just edited to original post: Davit can handle 264 lbs.
Sorry for the error.
Any recommendations on specific makes / models will help.
__________________
"we have no schedule and we're sticking to it!"
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06-17-2014, 10:04 PM
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#6
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Guru
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 5,307
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Larry, Thanks for the plug.
RC, I think you need to decide how fast you want to go. A 5 hp. engine might plane a 10 foot rib but it's marginal. If you want to go faster than displacement speeds, look at 10 hp. engines or bigger.
You'll find that the propane engines weigh about the same as four cycle gasoline engines.
The Lehr 5.0 weighs just under fifty pounds and the 9.9 just under 90 pounds.
I just had a customer trade in a 5.0 because it didn't plane his 12 ft. fabric bottom inflatable. He's very happy with the 9.9.
I have an 8 foot fabric bottom dinghy that I power with a Lehr 2.5 because I have to lift the engine on and off the dinghy each time I use it. Needless to say, I don't go very fast but it gets me back and forth to shore.
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06-17-2014, 10:10 PM
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#7
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Senior Member
City: Florida
Vessel Name: Lady Di
Vessel Model: 2012 Beneteau Swift Trawler 44
Join Date: Mar 2014
Posts: 450
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I don't think we'll need speed. The 5 HP will probably be fine. Who's in a hurry in a dinghy?
Where should I buy the engine?
__________________
"we have no schedule and we're sticking to it!"
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06-17-2014, 10:16 PM
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#8
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Guru
City: Santa Cruz, CA
Vessel Name: Concerto
Vessel Model: 1980 Cheoy Lee
Join Date: May 2013
Posts: 1,531
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How is propane a lot safer than gasoline?
I would think that one tank of gas in a small outboard would last quite a while between fillups. I have a 2.5 hp Honda that is still on its first tank. We have used it about a half dozen times.
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06-17-2014, 10:33 PM
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#9
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Guru
City: South FL
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,607
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Quote:
Originally Posted by rclarke246
I don't think we'll need speed. The 5 HP will probably be fine. Who's in a hurry in a dinghy?
Where should I buy the engine?
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http://www.hopkins-carter.com/le50prou.html
__________________
Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
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06-17-2014, 10:34 PM
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#10
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Guru
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 5,307
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RC, the forum rules prevent me from telling you where you should buy a Lehr engine.
Bligh is correct, propane needs to be stored and handled like gasoline. It is less messy to handle but you need to be just as careful with it.
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06-17-2014, 10:35 PM
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#11
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Guru
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 5,307
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Thanks Oliver! When are you coming down for a visit?
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06-17-2014, 11:00 PM
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#12
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Guru
City: South FL
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,607
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Quote:
Originally Posted by HopCar
Thanks Oliver! When are you coming down for a visit?
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Honestly don't know,
Hoping soon!
__________________
Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
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06-18-2014, 06:53 AM
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#13
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Senior Member
City: Florida
Vessel Name: Lady Di
Vessel Model: 2012 Beneteau Swift Trawler 44
Join Date: Mar 2014
Posts: 450
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Thank you all. Which shaft length will work best, assuming a 8-9' RIB?
Also, we already have propane on board so I didn't want to introduce a 3rd fuel.
Those small grill bottles look pretty safe to me.
Any argument against the Lehr 5?
__________________
"we have no schedule and we're sticking to it!"
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06-18-2014, 07:00 AM
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#14
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Senior Member
City: Florida
Vessel Name: Lady Di
Vessel Model: 2012 Beneteau Swift Trawler 44
Join Date: Mar 2014
Posts: 450
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Quote:
Originally Posted by Capt.Bill11
I'd go with either a hypalon RIB with a fiberglass hull on perhaps an aluminum skiff that you add a thick, soft rub rail to.
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Please pardon me for my possible misunderstanding, but did you mean "or an aluminum skiff"?
__________________
"we have no schedule and we're sticking to it!"
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06-18-2014, 07:01 AM
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#15
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Guru
City: Annapolis
Vessel Name: Ranger
Vessel Model: 58' Sedan Bridge
Join Date: Aug 2013
Posts: 7,088
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Quote:
Originally Posted by rclarke246
Correction which I just edited to original post: Davit can handle 264 lbs.
Sorry for the error.
Any recommendations on specific makes / models will help.
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Our 10'2" RIB weighs 135-lbs dry, and the 15-hp electric-start outboard weighs 106-lbs. Consider additional weight of fuel, "stuff," and maybe a battery if you want electric-start.
Usually it's good to want considerable reserve capacity in your lift system; often 10% is the minimum recommendation (I've read).
You'll also want to take into account the effect of that much weight that high on the boat... in beam seas, for example.
Given your location, you may find the guys at Inflatable Experts/Maritime Solutions (something like that) in Eastport to be very helpful. Nic Stark helped me...
-Chris
__________________
Chesapeake Bay, USA
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06-18-2014, 07:10 AM
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#16
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Guru
City: Beaverton, Ontario
Vessel Name: Looking Glass
Vessel Model: Carver 370 Voyager
Join Date: Nov 2012
Posts: 1,240
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I have a 10ft rib with a 6hp 4 stroke and it is even hard to plane with one person but we are usually in no hurry. You will definitely need a short shaft motor.
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Allan
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06-18-2014, 07:31 AM
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#17
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Moderator Emeritus
City: St. Marks, Florida
Vessel Name: Morgan
Vessel Model: Gulfstar 36
Join Date: Sep 2012
Posts: 3,673
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Quote:
Originally Posted by HopCar
RC, the forum rules prevent me from telling you where you should buy a Lehr engine.
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But it seems that you have friends. :-)
__________________
John
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06-18-2014, 08:13 AM
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#18
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Guru
City: South FL
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,607
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Speed is always a nice option to have .
__________________
Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
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06-18-2014, 08:26 AM
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#19
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Veteran Member
City: Burke, VA
Vessel Name: Tranquility
Vessel Model: Krogen 42-023
Join Date: Nov 2013
Posts: 43
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Maritime Solutions Inflatable Experts
306 Second Street
Annapolis, MD
888-230-7583
msi-1.com
Great people with whom to do business. Helpful and not pushy. Lots of inventory to choose from. Just bought aluminum hull RIB from them.
__________________
Greg Hales
Tranquility
KK 42-023
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06-18-2014, 09:25 AM
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#20
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Guru
City: Walnut Grove Ca
Vessel Name: Cary'D Away
Vessel Model: Hatteras 48 LRC
Join Date: Apr 2012
Posts: 887
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Speed is really nice, it opens up a lot of uses you may not have thought of. We use ours for exploring, sometimes 10 to 20 miles from the boat. Much faster to run at 20 mph than 7knts.
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