Trusting electronics and back-up.

[Rum_Pirate]

Given the other thread on my TV.

We all(?) have electronics aboard.

EG I have a VHF, an outboard., lights etc.

There is no back-up plan if for some reason the battery for the electric start outboard dies. i.e. there is no manual pull start.

As to VHF, well we do have the phone for coastal use.

Can use the Navionics App on the iPhone with 'paper' charts for back up..

What back-ups do you have and recommend?

 

[Stemar]

A spare engine in the other hull

 

[Rum_Pirate]

What is the likely reasoning behind not providing a manual pull start system on an electric start engine?

 

[AngusMcDoon]

What is the likely reasoning behind not providing a manual pull start system on an electric start engine?

As in the other thread, if your Yam 9.9 is like mine was, it does have a pull start capability, just not a recoil pull start. It takes 20 seconds to remove the cowl and the flywheel cover to access it and wrap the cord round the flywheel. Have you checked yours yet? If it has the capability you will need one of these...

 

[Rum_Pirate]

As in the other thread, if your Yam 9.9 is like mine was, it does have a pull start capability, just not a recoil pull start. It takes 20 seconds to remove the cowl and the flywheel cover to access it and wrap the cord round the flywheel. Have you checked yours yet? If it has the capability you will need one of these...

Mine is a May 2011 model. Will investigate. Thanks.

 

[AngusMcDoon]

This is the flywheel/generator assembly from the 2011 model year F9.9. It is different from the 2000 model that I had. It's not clear from this diagram, but part number 1 may be able to take a pull cord around it after removing cover 13. The rim shape on the top looks the same but the notches where the rope knot went in to are different from what I had.

 

[dune16]

A spare engine in the other hull

Beat me to it

 

[Rum_Pirate]

A spare engine in the other hull

Beat me to it

Unfortunately it is a C-27 trimaran.
No space in the folding areas.

Engine is squeezed into that 'blue' space in the stern of the main hull.
It is not accessible from the berth either.

 

[bitbaltic]

Given the other thread on my TV.

We all(?) have electronics aboard.

EG I have a VHF, an outboard., lights etc.

There is no back-up plan if for some reason the battery for the electric start outboard dies. i.e. there is no manual pull start.

As to VHF, well we do have the phone for coastal use.

Can use the Navionics App on the iPhone with 'paper' charts for back up..

What back-ups do you have and recommend?

First thing is a battery monitor on the house battery so you can see if a low power issue develops. Don’t need a monitor on the start battery if you can start from the house and monitor it to ensure you never get to a level where you couldn’t start the engine from it in an emergency.

second thing is a hh vhf as backup. Our HH can run off AA batteries if needed so a triple redundancy.

Carry spare AA batteries.

Electronic charts, there’s raster (imray) and vector (navionics) on an onboard Pc, navionics on a cockpit chart plotter, then navionics on iPhone.

if power were limited there’s 2x Garmin 128 GPS which draw very little as a backup and paper charts from Imray.

if power completely fails there’s a Garmin HH GPS which runs off AA batteries.

Carry spare AA batteries.

hopefully that would be enough to sail somewhere safe, drop the hook and break out the rum whilst contemplating the next step.

carry spare rum.

simples!

 

[AngusMcDoon]

First thing is a battery monitor on the house battery so you can see if a low power issue develops. Don’t need a monitor on the start battery if you can start from the house and monitor it to ensure you never get to a level where you couldn’t start the engine from it in an emergency.

If it's anything like my former outboard powered trimaran, there is not a separate start battery.

 

[Buck Turgidson]

Given the other thread on my TV.

We all(?) have electronics aboard.

EG I have a VHF, an outboard., lights etc.

There is no back-up plan if for some reason the battery for the electric start outboard dies. i.e. there is no manual pull start.

As to VHF, well we do have the phone for coastal use.

Can use the Navionics App on the iPhone with 'paper' charts for back up..

What back-ups do you have and recommend?

Can manual start my 2qm15.
Have handheld VHF as backup,
Have solar panel (Voltaic Fuse 10W) with battery for charging stuff,
Have Garmin in reach for nav and long range coms
Have several sails,
Have enough non structural plywood to fashion a rudder

Only thing I don't have is a spare hull!

 

[bitbaltic]

If it's anything like my former outboard powered trimaran, there is not a separate start battery.

My apologies for deriving a generality hopefully useful to the forum. The OP seemed to open it up to generalities as, let’s face it, most owners here are not sailing trailerable/small trimarans.

 

[Sandy]

What back-ups do you have and recommend?

Charts, 2b pencils, a compass and the knowledge to use them. for propulsion sails.

 

[Concerto]

Agree with Sandy, your primary motive power on any sail boat are your sails. An engine is an auxiliary, or backup for your sails. A trimaran should out sail most cruising boats up to abot 35ft, so what is your problem. My boat has a diesel engine and if anything goes wrong with it I have no backup, so stop worrying about what might happen - just go sailing.

 

[Buck Turgidson]

Charts, 2b pencils, a compass and the knowledge to use them. for propulsion sails.

This is primary. The electronics are backup surely ;-)

 

[Chiara’s slave]

F27s have just one battery. I’m sure that 9.9 will have the pull start cord in a wallet inside the hood. My Mercury 75s on my RIB do, and they work. Solar panels are a good backup too, especially where our rum drinking friend sails. Ipad and phone nav, the other backup is a lithium USB battery. Your tablet or phone could run for 3 or 4 days on that. However, you’ve got to draw a line on backups somewhere. I know if it can go wrong it will, but just know where you are,

 

[boomerangben]

No battery, pull start outboard, phone with power bank, mk1 eyeball, chart and a good weather forecast

 

[LadyInBed]

There is no back-up plan if for some reason the battery for the electric start outboard dies.

Sails?
PS some smaller / lighter weight boats used to / still carry a long whore

 

[AngusMcDoon]

If pull starting is not possible on the OP's engine the cheapest simplest solution would be something like this...

Halfords Advanced Lithium Jump Starter - Up to 3L | Halfords UK..

Small petrol engines don't need much battery oomph to get them started. Another possibility would be to wire in a small motorcycle battery and a VSR as a separate engine starting battery. It wouldn't have to be big, I reckon 10Ah would do it.

 

[Commercial Dave]

Good to have a second battery with some sort of automatic charging system and a manual changeover switch.

Being commercial we have to have backups so we have twin outboards, with their own battery, fuel tank, throttle etc. The only thing common to them is the steering but we can attach a manual tiller pretty quickly if necessary. All of the electronics are powered by the starboard battery but there's a battery link switch to connect them together if the starboard engine should fail. Also have twin identical plotters on the console. Plus we carry a handheld GPS and everyone onboard always has a smartphone. Even the handheld VHF has basic navigation functions, at least good enough to get you to a waypoint. Of course we still have to carry a paper chart and dividers...

I'm pretty sure I read in the manual that our engines can be recoil started although they obviously aren't fitted one as standard. You have to pop the cowling off and then another cover I think. Then you can just put a rope around and pull start it. Not sure I'd fancy that on a DF90 though