The following testimonials to our products and service are true to the original writer. They are not edited in any way beyond correcting the occasional spelling mistake and removing private addresses.
Dear Ben Hawke,
Thank you for your email of 24 December last year.
You probably know that I have, in fact, bought 17" Autostream 3 blade feathering propeller through Steel Developments, and I write to say that I am very pleased with its performance.
During a sea trial, in nearly flat calm conditions, I achieved 7.9knots at an engine speed of 3500rpm. This implies that the engine, boat and propeller match very well. At a cruising engine speed of 2500rpm boat speed was 7knots. In reverse, the prop walk is still there but now of easily manageable proportions.
With the Gori propeller, I only achieved 7.4 knots at 3200 rpm. In "overdrive" I achieved 7knots at 2500rpm. And the prop walk was vicious.
Overall, the performance with the Autostream propeller is "chalk and cheese" better than with the Gori.
When Nutmeg was lifted in January, I found another problem with the Gori prop. The sacrificial anodes had been eaten away entirely with just their fastenings remaining, this in one season. Before, with the old Volvo engine and a Whisko propeller, I usually managed to do 2 seasons on one shaft anode. The Gori propeller really does seem to have a corrosion problem and, particularly, because I fitted a galvanic isolator to the shore power system at the same time as I fitted the propeller.
On a technical matter, please will you let me know what pitch you specified that my propeller should be set at for both ahead and astern. I really would like to know this.
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