3 Blade Brunton Autoprop

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   This is our new Brunton 3 blade variable autoprop fitted to a 30hp Yanmar.

"Discovery" went back into the drink a month ago, and after 15 hours of motoring and sailing so far, all I can say about the prop is that it's all good, better than expected. 

PRO's

1. Greater speed with less revs.

2. Engine vibration and engine noise on full revs has            dramatically reduced to a peaceful purr.

3.  Motoring is much more comfortable and stable in moderate sea conditions.

4. Prop walk has virtually disapeared, reversing is much more responsive.

5.  No drag noticed while sailing.

CONS 

None as yet, maybe more maintenance in the future.

Edited by trist33 - 03 April 2011 at 22:35

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trist33 Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 19 September 2009 Status: Offline Points: 131	Post Options Post Reply Quote trist33 Report Post Thanks(0) Quote Reply Topic: 3 Blade Brunton Autoprop Posted: 03 April 2011 at 21:07
	This is our new Brunton 3 blade variable autoprop fitted to a 30hp Yanmar. "Discovery" went back into the drink a month ago, and after 15 hours of motoring and sailing so far, all I can say about the prop is that it's all good, better than expected. PRO's 1. Greater speed with less revs. 2. Engine vibration and engine noise on full revs has dramatically reduced to a peaceful purr. 3. Motoring is much more comfortable and stable in moderate sea conditions. 4. Prop walk has virtually disapeared, reversing is much more responsive. 5. No drag noticed while sailing. CONS None as yet, maybe more maintenance in the future. Edited by trist33 - 03 April 2011 at 22:35

Henrik84 Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 27 December 2009 Location: Sweden Status: Offline Points: 1458	Post Options Post Reply Quote Henrik84 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:23
	I am jealous. I also want one. /Henrik
	S/Y LaRey Hanse 320 #430 Gothenburg, Sweden

Henrik84 Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 27 December 2009 Location: Sweden Status: Offline Points: 1458	Post Options Post Reply Quote Henrik84 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:24
	Where did you buy it? /henrik
	S/Y LaRey Hanse 320 #430 Gothenburg, Sweden

trist33 Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 19 September 2009 Status: Offline Points: 131	Post Options Post Reply Quote trist33 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:33
	Hi Henrik We purchased the prop from Brunton Propellers at the London boatshow in feb this year, the guys we spoke to were very confident about this propeller, and now I know why! Brunton are based in the UK but will ship anywhere. I really do recommend this prop, I don't work for them! LOL! Edited by trist33 - 03 April 2011 at 21:35

Henrik84 Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 27 December 2009 Location: Sweden Status: Offline Points: 1458	Post Options Post Reply Quote Henrik84 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:36
	Thanks for the answer. What I can see is this not a folding prop. Is there much resistance in the water under sail. /Henrik
	S/Y LaRey Hanse 320 #430 Gothenburg, Sweden

trist33 Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 19 September 2009 Status: Offline Points: 131	Post Options Post Reply Quote trist33 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:38
	Variable pitch blades.

Henrik84 Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 27 December 2009 Location: Sweden Status: Offline Points: 1458	Post Options Post Reply Quote Henrik84 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:41
	Now I am thinking to buy one. I hate my fixed prop. What information do I need when i contact them to got a price. /Henrik
	S/Y LaRey Hanse 320 #430 Gothenburg, Sweden

trist33 Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 19 September 2009 Status: Offline Points: 131	Post Options Post Reply Quote trist33 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:43
	We didn't notice any resistance, we were getting our normal 6.2 knts in a southwesterly beam reaching with 17knt wind, it's not what u'd call a folding prop, but the auto variable pitch blades do the same job.

trist33 Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 19 September 2009 Status: Offline Points: 131	Post Options Post Reply Quote trist33 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 21:47
	All you need to tell them is make, model, type of drive (saildrive probably), size of engine. we do have the 30hp yanmar on our 320 so they recomended the 3 blade.

trist33 Members Profile Send Private Message Find Members Posts Add to Buddy List Commander Joined: 19 September 2009 Status: Offline Points: 131	Post Options Post Reply Quote trist33 Report Post Thanks(0) Quote Reply Posted: 03 April 2011 at 22:13



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