What kind of prop is this with pointed ears?

Elrod74

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2012-09-28 07.09.59_1306x979.jpg2012-09-30 15.43.08_1306x979.jpg2012-09-30 15.43.27_1306x979.jpg

I recently obtained this nice Raker 13.5 x 24, but I am curious about the other prop pictured on the right and in the other photos. It is painted black, but it is heavy like a stainless steel prop. It is a 15 spline and has pointed ears.

A 476 65 C is stamped on the end of the hub and the side of the hub has 476 21. I assume the 21 is indicating the pitch. I have never seen pointed ears like this on a prop. I also haven't seen stainless painted...but maybe it is another form of steel. It weighs over 10 lbs and is smaller than the raker (albeit a wider, but stubbier hub).

Just curious. I'm looking to sell it, but really should know what it is. A quick google search didn't help. Any ideas? Thanks!
 

Frank Acampora

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Re: What kind of prop is this with pointed ears?

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That prop appears to be a Chrysler Cleaver Stainless Steel prop. Stock Chrysler made for racing. Made for Chrysler by Michigan. 12 1/2 diameter X 21 pitch. It can also be used on early single exhaust Force engines up to about 1989. After 1989, most Force engines came equipped with dual exhaust lower units and required an open hub prop like the first photo. The closed hub prop can be used, but performance will suffer a bit.

The blades are VERY thin and will be easily damaged by bottom contact. In fact, I have two and one was damaged by UPS in shipping.

It is the same blade design as these props (excluding the top on in the first photo) with the blades thinned, fully cupped, and blade area reduced. When used as a fully submerged prop, its full potential is not realized as newer stainless designs will deliver more speed at the same RPM.

Too bad I don't need another. If you sell it, go over to the Chrysler Crew forum and ask at least 125. Be certain to pack it VERY WELL as those pointed blades will perforate through a number of layers of packaging. Fedex and UPS will use your package as a football and claim inadequate packing as blame for the damage.
 

Elrod74

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Re: What kind of prop is this with pointed ears?

Wow! Great info Frank. Thank you! That is more than I expected. The blades don't seem so thin but perhaps they are. One tip was slightly bent. The pointed design puts a lot of stress on the tips. This info is very helpful. Thanks.
 

Frank Acampora

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Re: What kind of prop is this with pointed ears?

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I neglected to mention that that prop is used with the Chrysler one-piece lower unit 1979 and later, up to Force 1989. It is 15 spline and will not fit on earlier Chrysler engines. If you list it on ebay, put a high reserve on it-- you really don't want to take less than 125 and probably could ask 200.

These props were designed to perform best at higher RPM than normal recreational and painted black.

My damaged prop was packed in the original Chrysler box and then in another outer box with packing in between. UPS managed to perforate all layers and the blade was dented on something. They claimed inadequate packing--go figure.

Here I am using it on a 1989 Force 90 at 50 MPH
 

Elrod74

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Re: What kind of prop is this with pointed ears?

Thanks again Frank. Based on your photos, it looks like your props are a bit different. It may be hard to tell in my photo, but the fin ears come to more of a point than yours. Yours may be from a different manufacturer because mine does not have the same style stamping. You certainly know more than I about this style prop...I'm just curious because they look a bit different.
Thanks!
 

Frank Acampora

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Re: What kind of prop is this with pointed ears?

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No, you misunderstand me! Those photos were just to show the same general design that the cleaver was taken from. I have two cleavers and they compare exactly if you cut off the front or leading edges and reduce the diameter. The comparison aluminum prop in the center was the first one that came to hand. It has already been repaired by a prop shop and the blades are a bit different than when it was new. The photos I posted were simply ones in my gallery on iboats. I did not have any photos of the cleaver props so I ran out now and took a couple.

The first photo shows the "Chrysler Stainless" tag. This will come off with almost any running and may not necessarily be on the cleaver. The second two show the props compared to an aluminum round-eared Chrysler prop. The only real difference between the props is that the stainless had slots in the perimeterof the hub to save weight while the aluminum is a completely solid hub.

In the last photo, you can clearly see the difference between my used prop on the left and the almost unused one on the right.
 
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