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Old 14-08-2009, 09:00   #1
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Boat: Ranger 28
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Prop Size - Ranger 28

Hello all,

I did it!! I finally lost my prop!! I found out last wednesday how many friends I had when my prop fell off and we started to get blown into the dock at the marina...turns out, just enough!

Before we haul the boat out of the water does anybody out there know what size (folding or fixed) prop would fit on a 1978 Ranger 28 with a Universal Atomic 4? I've been struggling with this for 2 days now and cannot find an answer. And there are no Ranger 28's close by either. Any help would be greatly appreciated! Thanks!
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Old 14-08-2009, 09:12   #2
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If you are planning on buying a new prop, any manufacturer will be able to give you the proper specs for a prop for your boat. For that matter, any prop shop worth their salt will be able to do the same thing. You'll need to be able to provide the boat's displacement, engine horsepower, tranny gear ratio, shaft diameter etc. Further, there is no need to haul the boat to intall a new prop. A knowledgable hull cleaner will likely be able to do it for you in your slip for less than a haul-out. You save time and money and you don't even have to be there.
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Old 16-09-2009, 22:05   #3
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Hi there,
this is Madeline Marie
does any body know what is the gear ratio for 5o HP perkins 4.108?

i have a two bladed prop and am thinking to change it to three bladed prop to get more speed and maneuverability?

thanks CB
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Old 04-06-2010, 11:57   #4
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Perkins 50 hp

According to these literatures Hurth HDW 10 was installed.

http://www.engine-cemberci.com/engine/PERKINS/1.pdf Perkins 4.108 M

http://www.engine-cemberci.com/engine/PERKINS/4.pdf Perama 50

Oktay Çemberci
www.engine-cemberci.com
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Old 04-06-2010, 22:43   #5
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Quote:
Originally Posted by madeline marie View Post
Hi there,
this is Madeline Marie
does any body know what is the gear ratio for 5o HP perkins 4.108?

i have a two bladed prop and am thinking to change it to three bladed prop to get more speed and maneuverability?

thanks CB
If indeed your tranny is a Hurth (or ZF) 10, I believe that they come in several different gear ratios. But, there should be a manufacturers plate somewhere on the outside of the case with this info stamped into it.

Have a look!

Cheers,

Jim
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