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Topic: Propeller Clearances for the 80' Eldo |
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Andy Small
MASTER
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Posted on: Oct 19, 2019 - 2:05pm
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Andy Small
MASTER
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Posted on: Oct 19, 2019 - 2:30pm
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And here is the stuff when they increased the wheels to 29 on PT-613 class (direct drive boats). Includes comparison chart with older 28 wheels.
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Andy Small
MASTER
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Posted on: Oct 19, 2019 - 2:50pm
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And here is the prop info from the Nov 43 Miami Trials. Both Elcos with 28 inch wheels.
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Jeff D
Moderator
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Posted on: Oct 20, 2019 - 5:08am
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Excellent, thank you Andy. I'm going to correct my page.
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Jeff D
Moderator
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Posted on: Oct 20, 2019 - 6:19am
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In the first letter I see the early 80' boats were supplied with a 30" for center and 28" on the wings? Was this order before they had a chance to test thoroughly and conclude straight 28's were the best?
Any idea of how the boats ran with the Elco Duchess D props? Another interesting bit...
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Andy Small
MASTER
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Posted on: Oct 20, 2019 - 11:25am
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Sorry for the poor resolution on the first letter. Here you go, all 28 inch wheels.
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Jeff D
Moderator
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Posted on: Oct 20, 2019 - 12:37pm
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Hah that's funny, the 28s looked just like 30s. Thanks again Andy!
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Drew Cook
TOP BOSS
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Posted on: Oct 21, 2019 - 10:32am
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Jeff,
So, you're saying the wing (outboard) prop shaft struts on the 80' Elcos kicked out to the sides, and weren't straight up-and-down?
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Gerry McGovern
Advanced Member
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Posted on: Oct 21, 2019 - 10:55am
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The outboard struts on the ex-PT-486 were canted and matched the angle of the hull. The center strut was straight (although removed in these pictures). Here is a shot from 1984 with the newly installed 4 blade props (smoother than 3 blade).
This shot from 2017 shows the angle of the strut:
The shafts were off set from the rudders:
Former crew member of the Big Blue Sightseer ex-PT 486 |
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Jeff D
Moderator
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Posted on: Oct 21, 2019 - 1:10pm
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Yep Drew, from Dick's DVD:
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