Reply
 
Thread Tools Search this Thread
 
Old 23 January 2014, 19:06   #1
Member
 
Join Date: Jul 2011
Posts: 813
Need for an auxiliary engine on a SIB???

When the sea turns rough its always good to have a big engine to push against strong tides and big waves.
I had a Plastimo 3.3 with Johnson 2.5HP for three years prior to acquiring a Honwave 35ae three years ago. This set up never let me down. In rough strong tidal conditions it was slow returning to port, but I doubt I would have wanted to go much faster at times, nevertheless an extra bit of ooomph would not have gone amiss should it be required.
Last summer I foolishly ran out of petrol four hundred yards from port with my tohatsu 20 HP. Unfortunately for me and my old man there was a strong tide receeding out to sea. Coupled with a wind blowing from shore out to sea we were unable to row against the tide/wind for even 400yards.
Once we knew the oars were not working I got out the spare petrol can and began filling/priming the tank/engine. It took afew minutes or so to get the engine up and running. Despite the fact that my old boy was rowing furiously against the elements we drifted quarter of a mile out to sea!
I carry flares and a vhf radio and wear self righting life jackets etc etc.
This outlined to me that a set of oars is not a back up system of propulsion for all conditions.
In many instances the elements will not conspire against so much and you will be able to row ashore to safety without calling mayday!
I have used my 2.5HP Suzuki as the main engine on my Honwave 35ae and it really toiled on one occasion against a strong receeding tide at the Mull of Galloway. This area is renowned for strong tidal surges. Nevertheless it pushed through it and got me to port. Therefore I see thus as the minimum back up that I would be happy going to see with on my SIB.
This highlighted to me the need for an auxiliary engine regardless of how far from shore you are going!
Due to being unable to mount a 20hp and a 2.5hp on the transom of my honwave 35ae i am making a bracket to mount the 2.5hp outside the tube from the transom. It will of course be anchored to the transom and protrude over the tube. Once i have fabricated my auxiliary engine mount I will post pictures.
What are the thoughts on auxiliary SIB engines for sea use on here?????
__________________

__________________
kaman is offline   Reply With Quote
Old 24 January 2014, 03:35   #2
Member
 
Exe treme's Avatar
 
Country: UK - England
Town: Exeter
Make: Highfield
Length: 5m +
Engine: Honda BF90
Join Date: Mar 2013
Posts: 272
"Last summer I foolishly ran out of petrol four hundred yards from port with my tohatsu 20 HP"

There might be an alternative, simpler solution. Clue above...
__________________

__________________
Happy when wet!
Exe treme is offline   Reply With Quote
Old 24 January 2014, 06:44   #3
Member
 
Country: UK - England
Town: Gillingham
Boat name: Harrys Game
Make: Avon WB 450
Length: 4m +
Engine: Yamaha F50
Join Date: Jan 2014
Posts: 91
Engines do break down and I have been considering this particular scenario for a while. I have a block mounted behind the jockey set which appears to be suited to just this purpose.I am thinking about a good old seagull, little to go wrong and quite powerful for size.Also should the engine breakdown in choppier conditions I like the idea of an engine thats light enough to move around the boat. Regards Jim
__________________
Harrys Game is offline   Reply With Quote
Old 24 January 2014, 06:59   #4
Member
 
chris.moody's Avatar
 
Country: UK - England
Town: Daventry & Beaulieu
Boat name: Tigga2
Make: Ribcraft 4.8
Length: 4m +
Engine: Honda BF50
MMSI: 235900806
Join Date: Jun 2011
Posts: 984
RIBase
Quote:
Originally Posted by kaman View Post
It took afew minutes or so to get the engine up and running. Despite the fact that my old boy was rowing furiously against the elements we drifted quarter of a mile out to sea!
I carry flares and a vhf radio and wear self righting life jackets etc etc.
An anchor would have stopped you drifting. It's one of my favourite bits of safety kit.

Chris
__________________
--
Chris Moody
Rib Tigga2 a Ribcraft 4.8 with a Honda BF50
chris.moody is offline   Reply With Quote
Old 24 January 2014, 07:59   #5
Member
 
Festinghouse's Avatar
 
Country: UK - England
Town: Chorley / Holyhead
Boat name: Northwind Challenger
Make: Tornado
Length: 6m +
Engine: Mariner 115 efi CT
MMSI: 235080598
Join Date: Jun 2011
Posts: 1,398
RIBase
Send a message via Skype™ to Festinghouse
i agree with chris, when my engine decided to imitate a cuttlery tray, it was the anchor that stopped us from drifting straight back into the overfalls which we had just come through.
__________________
"Life may often suck, but the alternative is unacceptable"
MMSI Sticker

Member of S.A.B.S. (Lancashire Division)
Festinghouse is offline   Reply With Quote
Old 24 January 2014, 08:35   #6
Member
 
Join Date: Jul 2011
Posts: 813
Quote:
Originally Posted by chris.moody View Post
An anchor would have stopped you drifting. It's one of my favourite bits of safety kit.

Chris
Cheers Chris
I do carry an anchor, 6ft of heavy chain and 200ft of rope.
In the conditions I described above I didn't fancy dropping anchor with two 6ft 4 inch 18 stone men plus loads of gear aboard.
I thought it better just to let my old man steer the sib with the oars in the chop.
Anchoring at the mercy of sporadically breaking waves I feared that the waves could easily have broke over the low SIB tubes, risking swamping us.
I only ever anchor the SIB when conditions are fair otherwise you get dizzy with the damn thing being battered around with the waves/wind/tide.
Until this point I always thought that the oars would be sufficient to steer me out of harms way......... obviously not in these conditions.
This incident made me aware that all, even the biggest vessels are completely at the mercy of the sea.
In a SIB you are more at her mercy.
I am very safety conscious and take all the safety precautions before going to sea.
This incident has unsettled my confidence going to sea as it was a flat calm sea on leaving in the morning and forecast predicted conditions going from wavelets to slight in the afternoon.
I think tide and wind conspired at this point to make conditions worse than forecast predicted upon my afternoon return to port.
Maybe old age but I am now of the opinion that you can't be careful enough when out at sea.
Conditions do deteriorate suddenly engines do break down.
It is damn near impossible fix a break down in a sib if you are alone being battered about at the mercy of the elements.
I fish near sheer cliff in my SIB a place larger vessels do not dare go.
A mechanical break down on certain conditions would see me up against the ragged rocks and capsized being battered off the cliffs.
I have two well maintained engines one 20hp and the other 2.5hp.
From now on both engines will get accompanying me on my excursions as the surplus engine ain't going to be any use to me in the garage if things go wrong.
I know that others on here use their sibs for other ventures and Auxiliary engines won't be needed by all.
I have made the decision that when going to my usual fishing grounds mentioned above I will be mounting my 2.5hp auxiliary.
__________________
kaman is offline   Reply With Quote
Old 24 January 2014, 09:00   #7
Member
 
Festinghouse's Avatar
 
Country: UK - England
Town: Chorley / Holyhead
Boat name: Northwind Challenger
Make: Tornado
Length: 6m +
Engine: Mariner 115 efi CT
MMSI: 235080598
Join Date: Jun 2011
Posts: 1,398
RIBase
Send a message via Skype™ to Festinghouse
well you seem to be able and happy to get the best use out of your sib, and if i was you then i would definately be carrying the spare with me. welcome to ribnet by the way
__________________
"Life may often suck, but the alternative is unacceptable"
MMSI Sticker

Member of S.A.B.S. (Lancashire Division)
Festinghouse is offline   Reply With Quote
Old 24 January 2014, 09:12   #8
RIBnet supporter
 
bartiny's Avatar
 
Country: UK - England
Town: Accrington
Length: no boat
Join Date: Oct 2012
Posts: 451
Also a sea anchor would have been handy to help against the wind element of your drift, if you get my drift
__________________
bartiny is offline   Reply With Quote
Old 25 January 2014, 13:32   #9
Member
 
Country: USA
Town: Seattle, Washington, USA
Make: Zodiac Futura Mk IIC
Length: 3m +
Engine: Honda 20hp 4-stroke
Join Date: Aug 2013
Posts: 50
Quote:
Originally Posted by kaman View Post
What are the thoughts on auxiliary SIB engines for sea use on here?????
I think it's a great idea! I recently purchased a saltwater electric trolling motor as a backup to my Honda 20hp. It would absolutely kill my pride in being a self-sufficient guy to make a call for help, so I do whatever I can to prepare for contingencies.

My SIB doesn't have room for two motors on the transom, so I'll keep the trolling motor lashed to the deck until it's needed. I'll pull up the gas motor if something happens to it and put it in the boat and then drop the electric motor in place and go. I've been wanting to get a battery for lights and cell-phone charging anyway.
__________________
Wild_Bill is offline   Reply With Quote
Old 25 January 2014, 13:59   #10
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
I'm not convinced that a tiny aux on a boat this size doesn't lead you into a false sense of security.

Close proximity to cliffs with a Lee shore, conditions where it is apparently too choppy to anchor - 2.5hp on an infrequently used engine, that you will have to get in position and started (having probably wasted a minute doing the obvious checks on the main engine) when things go wrong on a small boat it happens quickly.
__________________
Poly is online now   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 19:04.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.