Lots of replies. I should have done this before!
Now that the interest has been aroused I will have to back-track slightly as my new engine is not yet run in. I'd like to get that done first unless you fancy progressively increasing speed from around 15 knots to 20 knots and back again all the way across. There are restrictions up to 20 hours and I've so far done less than 9! But if anyone is free in September or October, we could do something!?
The Mercruiser 1.7 comes with an Alpha 1 leg... which I hear less bad things about than the Bravo 3! Time will tell!
It is obviously a little down at the back but rides much flatter and softer than my Ribcraft 5.85 did with twin 60hp Mariners hanging on the outside. The weight of the diesel engine is obviously spread further IN the boat. The fuel tank is towards the front, starting just behind the anchor locker and helps to balance. As for capacity......? Yes interesting one this! The capacity quoted by Humber is 150 litres. When I picked up the boat the gauge was reading just above empty as they had just put in enough fuel to test it. I then poured in 40 litres from cans, which made the gauge read getting on for a half. I then did a three-hour trip, which dropped the gauge to around a quarter. Hence my 30 L guestimate (Are you following this?). I then added another 40 litres, which brought the gauge to just over half. After another two hour trip it was down to something over a quarter. So a guestimate would say there was about 20-30 litres in the tank when I decided to fill up to the top on Sunday. It's a 150 Litre tank so I expected to put in about 120 -130 litres max....... It frothed out at 154 Litres!
So, either it's nearly a 200L tank, or the fuel barge shortchanged me or I totally wasted my money on a fuel gauge and was lucky I didn't run out!! GPS has been set and engine hours noted so watch this space! It will take several trips to get a true fuel consumption figure!
And the last question, I trail. I have it on a Rapide single axel trailer with a 1400 Kilo capacity. Just about the biggest single axel they do, but much more manageable than two (I am told!)
Hope that helps,