Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Alpine DPT


User Tag List

+ Reply to Thread
Results 1 to 11 of 11
Like Tree6Likes
  • 1 Post By southernman
  • 4 Post By Maca49
  • 1 Post By Tikka7mm08

Thread: What size HP outboard do I need?

  1. #1
    Member Tikka7mm08's Avatar
    Join Date
    Mar 2012
    Location
    North Loburn
    Posts
    4,442

    What size HP outboard do I need?

    Hi - I have a Takacat 3m inflatable (pontoon). It weighs about 32kg. I would like to have 2-3 free divers on board so say 300kg (probably only 2)? I'd love a little DF2.5 but any idea what size I need to run to get around at an ok pace (not flying off waves but not getting pushed backwards in a 5knot current/wind)??

  2. #2
    Member
    Join Date
    Mar 2013
    Location
    Bell Block NZ/Northern Alberta Canada
    Posts
    1,137
    Most boats have a max HP rating chart, should be something under boat specs, I would not put the miminum spec, outboard on any boat, you need to have enough grunt (hp) to get up on plane, if the outboard is too small, it may not be able to do so, and you will have a displacement hull, and thus slower with higher fuel consumption. a little bit more than minimum, has a bit of a safety advantage, allowing you to push against an strong outgoing current, or if coming in over a bar to maintain a speed, and come in sitting on the back of a wave,
    I am going to guess at 5-6hp or so, as its only a 10 foot hull, would be good.

  3. #3
    Member Tikka7mm08's Avatar
    Join Date
    Mar 2012
    Location
    North Loburn
    Posts
    4,442
    Cheers for that...yes max is 9HP from memory...problem is this is a pack it in the bag boat so looking for an outboard that can be picked up and carried...they really jump up in weight from 5hp or so. Seems just have to live with it.

  4. #4
    Member
    Join Date
    Mar 2013
    Location
    Bell Block NZ/Northern Alberta Canada
    Posts
    1,137
    ok, I didn't realize that, but makes sense now, why you were looking at a 2.5 hp, I likely go with mid of the range, 5 or so, two stroke will be lighter than a four, but they are getting closer in weight every year,
    A little electric may also work quite well, I have a 55lb thrust minkota on my old boat in Canada, a 17 foot lund, with a 115hp out board, and it pulls at along (Bow mount) at a very good clip. 10-15 km hr at a guess. runs for hours on a car battery.
    Tikka7mm08 likes this.

  5. #5
    Member
    Join Date
    Nov 2012
    Location
    BOP
    Posts
    21,166
    Geeze you need my 8 HP johnson
    Boom, cough,cough,cough

  6. #6
    Member
    Join Date
    May 2012
    Location
    Far North
    Posts
    4,881
    Iv got a little 5hp merc
    we went with that because it is the largest you can go with the incorperated tank in the top
    pushes my mac 270 ok but dosent plane
    planes the heck out of a 10footer

  7. #7
    Member Tikka7mm08's Avatar
    Join Date
    Mar 2012
    Location
    North Loburn
    Posts
    4,442
    Thanks Bill - yep it would be handy to have the tank on top of the motor, easy to have fuel cans to top up. I think 5HP is about tops for this set up.

  8. #8
    Member
    Join Date
    Nov 2012
    Location
    BOP
    Posts
    21,166
    I think your gonna be 3 short
    Boom, cough,cough,cough

  9. #9
    Member Tikka7mm08's Avatar
    Join Date
    Mar 2012
    Location
    North Loburn
    Posts
    4,442
    LOL - I see I can go to a 6HP 4 stroke at 26/27kg with the integrated tank...that should be plenty.
    Maca49 likes this.

  10. #10
    Member Tikka7mm08's Avatar
    Join Date
    Mar 2012
    Location
    North Loburn
    Posts
    4,442
    Suzuki 6hp 4 Stroke Outboard. | Trade Me

    What I need - great internal capacity at 1.5L vs 1.1L for others, and I think it is a better gear ratio at 1:under 2 others 1ver 2...??
    Now to find it for a $1000 cheaper.

  11. #11
    Member Tikka7mm08's Avatar
    Join Date
    Mar 2012
    Location
    North Loburn
    Posts
    4,442
    That face in the word "over" is a typo but I like it so much I am not going to edit it out.

 

 

Similar Threads

  1. what size aux outboard?
    By silentscope in forum Outdoor Transport
    Replies: 42
    Last Post: 13-09-2014, 08:07 PM
  2. Outboard jet motors
    By Toby in forum Outdoor Transport
    Replies: 12
    Last Post: 21-06-2014, 08:17 PM
  3. full size vs neck size
    By Dino in forum Reloading and Ballistics
    Replies: 50
    Last Post: 24-10-2013, 07:59 AM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!