KAMD 44 advice

[Greg2]

Sealine F36

Thanks. I wonder whether there will be a difference between a planing and a semi- displacement hull

 

[Whopper]

Thanks. I wonder whether there will be a difference between a planing and a semi- displacement hull

Personally I find the 38cl digs in at the rear even before 7knots (paddle wheel) with twin 200hp volvos. It might be to do with its beam relative to length but I always thought our old Crown had a faster full displacement speed before the back started to bog down. Similiar comments by friends one with an old ocean 37 and another with a 42ft linssen; they reckoned the 38 had "big wash" at displacement speeds.

 

[Somerset Jim]

Thanks. I wonder whether there will be a difference between a planing and a semi- displacement hull

I would imagine that it will be dependent upon
i) whether the engines can sustain the same revs without the help of the super charger and,
ii) if you can gradually increase the revs without the engines feeling the need to use the superchargers.

I suspect that they will kick in unless you have lots of patience each time you accelerate. Really the only way to find out would be to take it out for a sea trial. Either way, best of luck.

 

[Greg2]

Yep, think you might be right, Thanks.

 

[Greg2]

Personally I find the 38cl digs in at the rear even before 7knots (paddle wheel) with twin 200hp volvos. It might be to do with its beam relative to length but I always thought our old Crown had a faster full displacement speed before the back started to bog down. Similiar comments by friends one with an old ocean 37 and another with a 42ft linssen; they reckoned the 38 had "big wash" at displacement speeds.

Interesting. Thing is that Broom didn’t fit tabs on the 38, 39kl or 42cl as standard as far as I know. Have wondered whatever we should just go for one with the TAMD41 enginess - 200 hp so never going to fly but maybe all that we need in the long term.

 

[oldgit]

My Transocean 36, basically a Broom 37 hull with modified top sides and around the the same weight, would give on good day,15/16 knots flat out with pair of Perkins M135 (Non turbo) engines.
It was fitted with those funny Volvo trim tabs to not much affect, to be honest
At anything over displacement speeds the wash was impressive to behold.
The most obvious difference between the hull of the Broom and of my present Princess 35 was the tendancy of the Broom to roll in any decent sort of sea.
The downside of the P35 is the constant slap of the waves on the bow when moored.
Normally most infuriating around 3AM in the morning as the ebb reaches full flow .
When staying aboard on our pontoon mooring, boat has to be turned round if a nights sleep is required.
....and you can forget all the prevention devices, none of em work.

 

[volvopaul]

I'll give you an answer Greg , wrong motor for a Broom

 

[rustybarge]

I'll give you an answer Greg , wrong motor for a Broom

+1

Both Volvo and Yanmar are high performance diesel engines.

 

[Greg2]

I'll give you an answer Greg , wrong motor for a Broom

Thought you might say that Paul. Cheers

 

[Greg2]

My Transocean 36, basically a Broom 37 hull with modified top sides and around the the same weight, would give on good day,15/16 knots flat out with pair of Perkins M135 (Non turbo) engines.
It was fitted with those funny Volvo trim tabs to not much affect, to be honest
At anything over displacement speeds the wash was impressive to behold.
The most obvious difference between the hull of the Broom and of my present Princess 35 was the tendancy of the Broom to roll in any decent sort of sea.
The downside of the P35 is the constant slap of the waves on the bow when moored.
Normally most infuriating around 3AM in the morning as the ebb reaches full flow .
When staying aboard on our pontoon mooring, boat has to be turned round if a nights sleep is required.
....and you can forget all the prevention devices, none of em work.

That sounds like a reasonable turn of speed for 135hp engines.

 

[oldgit]

"That sounds like a reasonable turn of speed for 135hp engines"
.



Not when the rest of your companions on the cruise quickly disappearing over the horizon and the next time you spot them they are staggering out of the pub at your choosen destination, as you struggle to find your way into the same port hours later in the dark.

 

[Rapaz]

I've worked on the one in Horning , starboard engine blew up some years back

I am looking at a Broom 38 in Horning with KADM 44s! Do you know what happened to the engine and when? What was done to put it right?Any input appreciated.