Sadler 26 paddlewheel transducer

[radarman]

I recently tried to replace the old (Shark) paddlewheel transducer with a new NASA one only to find that the old hull fitting is too long and the supplied hull fitting would be to short to directly fit in the same place.

Rather than start to drill holes in the hope of finding a thinner area of the hull. Does anyone know where the best place to fit the new beast. Alternatively do NASA supply a longer transducer?

Regards

 

[colvic]

Hi
We once had a NASA paddle wheel transducer which was fitted into the very bottom of the hull of our Colvic motor sailer where the thickness was over 25mm and that had plenty of length still.
Be very careful when fitting not to overtighten the nut as to do so will put too much pressure on the fitting and it will eventually fail. We have experienced such a failure!
There after have stuck with the GPS for a speed over water indication and no longer have to bother about the paddle clogging up, barnacle growth, or as once happened one of the two magnets in the wheel fell out and that led to some very interesting readings!

 

[morgandlm]

I have a Sadler 26 (Bonsella) with a NASA paddle wheel transducer fitted on the centre line about 10 cm forward of the transverse bulkhead beneath the forecabin. The transducer is in a slight well but I do not not if this is part of the original moulding or was machined to accommodate the transducer.
Morgan

 

[Kwik Decision]

Hi,

I had the same problem on our Sadler 29, when replacing a Navman log with NASA this winter. It is as a result of the double skin construction of these types of Sadlers, giving a very thick hull. I overcame the problem by creating a well, as mentioned above, to reduced the thickness of the hull in that area. It was quite easy to do, with a drill and sharp chisle, and the NASA log is now fitted, and working well. Have a look on the Sadler forum at Mike Lucas Yachting (I'm sure google will find it) for more info.

Cheers,

Andy B
Sadler 29 "Kwik Decision"