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4JH3DTE or 4LHA DTP for my boat

T

tomi

Guest
"Hi,

I am considering in bu


"Hi,

I am considering in buying a 9.5m (31 feet) planing boat, 4500 kgs of weigth. You can see the boat at:
http://www.sas-vektor.hr/prod03.htm
It has direct shaft drive.
Tests for 2x Yanmar 4JH3-DTE show the following speed at RPMs:
800rpm: 3kts, 2000:7.4, 2600:12.5 (planing limit), 3500:18.8 (cruising speed), 3900:23.
Manufacturer also offers 2x Yanmar 4LHA-DTP for additional 10k$.
Which engine package should I take? Do you think 4JH3s are proper for planing boat? Are they too small for this particular boat? I am not interested in speed so much, but wouldn't want to push the smaller engines all the time.

Thnx.
Tomi"
 
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