I have a 22 foot fibreglass cruiser with a Mercruiser sterndrive. I want to fit an auxiliary motor and was considering a 7.5 HP.Is this sufficient? I need to fit a mounting bracket and need to know the correct location . How far should the propellor sit in the water. I would imagine the same level as the main prop?
2007-07-07 18:13:22 · 2 answers · asked by geoff 33 1 in Cars & Transportation ➔ Boats & Boating
there are a lot of things that have to be taken into account.
1)The type of boating that you do,and where are you boating,eg.A)big water/great lakes or ocean.How far from shore will you be etc.
2)The amount of free board or the depth of your transom.
3)What do you want the engine forA)for emergency propulsion)trolling/fishing etc.
4)Two or four stroke?I suggest four stroke,you can run the engine from the main fuel tank.
These are just a few of the things you should consider before you worry about the installation.Professional help from a responsible dealer will be time and money well spent.
Good luck and happy boating
2007-07-08 01:17:16 · answer #1 · answered by singer 3 · 0⤊ 0⤋
The 7.5 will maybe work in ideal weather. no current or wind. Best to have a 15hp or 25hp with the longest lower unit you can get 20"or 25" If the propeller is not low enough in the water as soon as the the boat make way it will cavity.
.
2007-07-08 12:47:03 · answer #2 · answered by 45 auto 7 · 0⤊ 0⤋