[Public-list] Prop Size

[Jonathan Whittingham]

Jonathan Whittingham wrote:

> Dear listers,
>                  Just have to throw my ten cents worth in here. I 
> replaced my Atomic4 with a Sole Mini26 Diesel this last winter. I have 
> nothing but good things to say about this little workhorse. Three 
> cylinder, 26 HP output, maximum revs 3600. The prop was sized to a 
> twoblade Mickey Mouse ears 12" x 9.5 pitch. This gives a hull speed of 
> 6.5 knots at around 2700, which is plenty for me. She got a real test 
> at Dodd narrows when I forgot to allow for Daylight savings and "went 
> for it" an hour early against  the current which was flowing at around 
> 6 knots. Got through at 1.2 knots at 3000 revs. Slightly shaken but 
> absolutely delighted! At cruising speed ( 2150revs- about 5knots plus) 
> she is burning 2 to 3 litres per hour. She has very smooth running and 
> makes less noise than the old ABomb. Highly recommended. Regards 
> Jonathan Whittingham    Alberg 30 "Emmy"


Sorry forgot to mention Gearbox reduction of 2.25:1

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