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degree of deradrise
Posted: Nov 21st, '23, 08:56
by lobo
Hello all , does anyone know the degree of deadrise on our 31 bertrams ? I'm trying to purchase a transducer for a new unit . I think it's 21 degrees but not sure . Thank you in advance. Russ- Rascal
Re: degree of deradrise
Posted: Nov 21st, '23, 20:15
by HotSpot
https://www.bertram31.com/specs/index.html
This shows 24deg at the transom. I think it’s rather consistent through the entire length.
Re: degree of deradrise
Posted: Nov 21st, '23, 22:38
by Tony Meola
If you are going flush mount by Airmar, the 20-degree unit works. Mine is just off the center line in the area under the companion way. Actually, it is near the starboard engine stringer. If I measured it I bet it would be lined up with the midpoint of the engine.
Re: degree of deradrise
Posted: Nov 23rd, '23, 07:49
by lobo
Thank you, this helps greatly ! Happy Thanksgiving to all