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Old 13 May 2013, 12:38   #11
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Country: UK - England
Boat name: ShaarkBait
Make: Zodiac 3.6 FR
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Thanks. That's really helpful.

Just two questions...

What is 'hole shot'
What is 'perfect hole shot'
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Old 13 May 2013, 12:43   #12
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Town: Lima-Peru
Boat name: Nautile
Make: Sea Rider Boats
Length: 4m +
Engine: Tohatsu 18 /30 HP
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Problem : Excessive Prop Aireation at turns & choppy seas
Boat : Sea Rider 420 Rib/Tohatsu 18 S.
Tech Issues : Transom being 45 cm height when needing to be 40 cm.
Correction : Chopped transom down 5 cm to find sweet engine/transom height match.
Performance : Engine runing at near it's max wot rpm parameters, excellent hole shot, perfect close turns at any speed and water condition, better fuel economy needing to throtle less to maintain perfect boat ballance & plane.

Happy Boating
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Old 13 May 2013, 12:52   #13
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Quote:
Originally Posted by IanH View Post
Thanks. That's really helpful.

Just two questions...

What is 'hole shot'
What is 'perfect hole shot'
Hole shot :
When boat goes from a steady floating position trying to pull out of water, be on it's way, when at least medium to full throttle is applied.

Perfect hole shot;
Would be trying to get out the fastest as possible to instant plane.

A perefect engine/transom height match achieves fast hole shots including the use of portable & medium HP engines delivered with standard props mounted on light sibs/ribs.

Happy Boating
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Old 14 May 2013, 11:34   #14
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Hole shot is the boat climbing up onto plane. Takes more power to get itup on plane than to keep it there.

jky
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Old 14 May 2013, 11:47   #15
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Just one wee observation -

If I'm reading those pics right, is that engine only held on by the clamp screws? (i.e not through bolted between clamps & transom?)

If so, keep a good close eye on it while testing if you lift it! - at least your clamp plate has a ridge. The rest you can probably work out!
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Old 14 May 2013, 12:01   #16
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Country: UK - England
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Its not even got wet yet! The wheels and engine had been fitted about 5 minutes when pictures were taken.

Planning to start using it over half term week so just a bit of forward planning for then whilst I have time to ask. With running in and probably sticking to river, Im not even expecting to try and get it on the plane until I get the conditions and confidence to run the gauntlet of the harbour mouth.
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Old 14 May 2013, 12:09   #17
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Ian - stick a bit of 2"x1" in there and try it out. Works for me.
Always worked for me on my Futura, make the adjustment you will get a feel for when it is correct.

Steve
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Old 14 May 2013, 17:29   #18
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Bolt engine to transom if you like after ideal engine/transom heigh has been reached, not before. If raising engine will need to raise both rear & front engine plates accordingly to itos new position.

If possible glue a piece of pvc, haypalon, tire blader inside metal plate. Adjust both clamps tight against. If eye clamps matches facing each other, tie a small rope between them, so engine is secure. I've seen boaters droping to sea their portable engines that were only clamp tight which came lose due to engine vibration issues while cruising.

Happy Boating
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Old 25 May 2013, 09:50   #19
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Thanks to photos posted on here and most excellent performance that I witnessed today, I don't think that I will be experimenting with engine height. No/minimal splash back, water level just below upper plate combined with ease of plane and ability to maintain plane whilst throttling right back.

Thanks to all that contributed especially locozodiac for his photos and indepth descriptions.

NB... Engine was tied on!
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Old 25 May 2013, 11:03   #20
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IanH,

You are welcome, nice to read that pics info worked for you. If slight under or bit under small upper plate, that's perfect. The big bummer is when having over transom water splashes, Tohatsu leg shape issues.

Happy Boating
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