Model Boat Mayhem

Mess Deck: General Section => Chit-Chat => Topic started by: Dave Cook on June 02, 2014, 01:07:41 pm

Title: Prop shaft angle
Post by: Dave Cook on June 02, 2014, 01:07:41 pm

Hi All , I am about to set my prop shafts into the hull on mt 1/24 scale perkasa , Can anyone tell me is there a prefered angle to set them to or set just to near center of the rudder as pos.
Thanks Dave

Title: Re: Prop shaft angle
Post by: deadbeat on June 02, 2014, 01:19:27 pm

Just make sure the shaft alignment is correct from motor and coupling through the boat so its all in a straight line and make sure the propeller doesn't foul the hull or the rudder. I like to keep my shaft angle as shallow as possible, ie only a small clearance between hull and prop.

Title: Re: Prop shaft angle
Post by: Dave Cook on June 02, 2014, 03:03:04 pm

Thanks  :-)) :-)) :-)) :-)) :-)) :-))

Title: Re: Prop shaft angle
Post by: theboatcrew on June 02, 2014, 03:33:27 pm

Hi Dave

http://www.akcaymarin.com/Products/%C3%B6zelklavuzlar/Volvo%20Penta%20prevane%20klavuzu.pdf (http://www.akcaymarin.com/Products/%C3%B6zelklavuzlar/Volvo%20Penta%20prevane%20klavuzu.pdf)

Graham

Title: Re: Prop shaft angle
Post by: theboatcrew on June 02, 2014, 03:36:26 pm

Hi
Sorry Dave, I noticed the link only takes the first part.  Try 'copy and pasting' the whole link into your browser.
Graham

Link fixed! - Admin

Title: Re: Prop shaft angle
Post by: Dave Cook on June 03, 2014, 08:55:18 am

Thanks the boat crew interesting link.
Cookie  :-)) :-)) :-)) :-)) :-))

Title: Re: Prop shaft angle
Post by: theboatcrew on June 03, 2014, 08:05:42 pm

Admin
Thanks for fixing the link :-))
Graham

Title: Re: Prop shaft angle
Post by: cdsc123 on June 03, 2014, 09:30:05 pm

According to Vosper drawings the KD Perkasa shaft angle is 10 degrees. As Deadbeat stated the trick is to get it as shallow as possible, one thing to add is to leave a little extra space between the hull for a slightly larger diameter propeller than the one you have as you may want to do prop changes later.  Also, fit a rigid tube over the flex coupling as that will help determine the motor mount position and keep everything dead straight whilst doing the job.