Auxiliary engine
Auxiliary engine
Hi, is there a recommended size/make of aux engine. For My 570 . Just in case of main engine failure .. Many thanks Trev. And is it short OR Long shaft. 
Re: Auxiliary engine
I have used a 2hp and 2.3hp on my Shetland 535, which is a little smaller and lighter than your 570. I wouldn't want to go any lower than that for my 535, so I'd guess you'd want to go a little higher as a bare minimum for a 570.
There are many 570 owners on here, so somebody else may pop by soon to give you some better advice.
As for make/type of engine, it may come down to what you want to use it for. I have mine as a backup for when I'm on the sea, but I also use it on canals and rivers quite often, as it doesn't make sense running the big engine all the time at such slow speeds. So for that reason I have a new-ish 4 stoke auxiliary. If it is literally just to get you out of trouble if the big engine dies, then you might find an older 2-stoke is fine (as long as it's reliable!).
There are many 570 owners on here, so somebody else may pop by soon to give you some better advice.
As for make/type of engine, it may come down to what you want to use it for. I have mine as a backup for when I'm on the sea, but I also use it on canals and rivers quite often, as it doesn't make sense running the big engine all the time at such slow speeds. So for that reason I have a new-ish 4 stoke auxiliary. If it is literally just to get you out of trouble if the big engine dies, then you might find an older 2-stoke is fine (as long as it's reliable!).
Re: Auxiliary engine
Many thanks for Your help, info logged, and I will wait awhile to see if any of the 570 crew have any input. Again thanks Shipmate !!
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Re: Auxiliary engine
we had a 5hp on the back of our 570. Bear in mind we are coastal and sea going and needed a bit of ump
There is NOTHING--absolutely nothing--half so much worth doing as simply messing about in boats.
Kenneth Grahame
Kenneth Grahame
Re: Auxiliary engine
Thankyou for Your help !! Was it Short OR Long shaft ?? 
Re: Auxiliary engine
Thankyou for Your help !! Was it Short OR Long shaft ?? 
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wizzardbob21
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Re: Auxiliary engine
Hi I have a marina 4hp as an auxiliary on my shetland black hawk use it rather than the 90hp marina sometimes to poodle round poole harbour saves loads of petrol! 
Re: Auxiliary engine
Many thanks Me hearties !! I decided on a Honda 5hp. great little engine , and all I had to do was to sing for it !!

Re: Auxiliary engine
Many thanks Me hearties !! I decided on a Honda 5hp. great little engine , and all I had to do was to sing for it !!

Re: Auxiliary engine
I have a 9.9hp as an auxiliary on the back of a 535 good for around 8 mph. Great for fishing and saving fuel and a lot quiter than the big two stroke.