HP42 Shaft measurements/propeller

Scallywagger

Scallywagger

.
Feb 21, 2014
137
Hunter Passage 42 St Andrews Scotland
Hello everyone. I wish to fit a folding propeller to Casper but, Casper is in Scotland & I am in Saudi! I am trying to give information to the propeller supplier.
I am wondering if any owner would know if the shaft diameter is 30mm with a 1:10 taper and 8mm key way? Would the shaft thread be M20? These are the questions I have been asked.

Happy sailing everyone. Bill
 
Terry Cox

Terry Cox

.
Dec 25, 2000
5,946
Hunter Passage 42 Shelter Bay, WA
Only help here is that our American made P42 has a SS shaft that is 1-1/4" diameter. No info on taper, or key way. Sorry.
 
Scallywagger

Scallywagger

.
Feb 21, 2014
137
Hunter Passage 42 St Andrews Scotland
Thanks Terry. I read a lot of your comments and suggestions and learn a lot. Thanks. Bill
 
Terry Cox

Terry Cox

.
Dec 25, 2000
5,946
Hunter Passage 42 Shelter Bay, WA
You are most welcome, Bill. Our boat remains in the water year around. Next year will be time to haul and redo the bottom paint. That would be the next time I could check those dimensions for you, but a bit of a wait.
 
Scallywagger

Scallywagger

.
Feb 21, 2014
137
Hunter Passage 42 St Andrews Scotland
Have a nice summer. France And Belgium for me this year. Bye for now. Bill
 
S

senang

.
Oct 21, 2009
316
hunter 38 Monaco
If you know what type your existing propellor is, you could ask the manufacturer. Mine has a Michigan Wheel Marine propellor installed. You could also ask Hunter Marine when you give them your hull number. Both are quite helpfull.
 
Scallywagger

Scallywagger

.
Feb 21, 2014
137
Hunter Passage 42 St Andrews Scotland
Okay. Thank you. I will take the shaft out when home and take the second hand but new propeller to an engineering work shop and see if they can machine to fit. The shaft appears to be slightly larger than the propeller entry for it.

Thank you. Bill S
 
Z

Zaya

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Jul 22, 2014
35
Hunter Passage 42 Providence, RI
I also confirm the shaft is 1-1/4" in diameter. Hey where's your new "Nice boat" videos?
 
Scallywagger

Scallywagger

.
Feb 21, 2014
137
Hunter Passage 42 St Andrews Scotland
Hello Zaya. Thanks for confirming 1 1/4. I took Casper to Denmark Sweden & Germany last July. I put a film on YouTube. I am today just departed Arbroath in Scotland for a 5-6 weeks trip to Belgium and France, London then back to Scotland
 
M

MitchM

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Jan 20, 2005
1,031
Nauticat 321 pilothouse 32 Erie PA
i'm just a cautious old retired engineer. but there used to be 2.54 cm per one inch and 10 mm in one centimeter. so a 1 inch shaft diameter is 25.4 mm. and a 1.25 inch shaft diameter is 1.25 inches times 25.4 mm/inch , or 31. 7 mm. most tock thats on european boats (check VETUS) are in mm not inches. a 30 mm shaft is 1.18 inches. i'd get your boat manufacturer to confirm your official p-shaft diameter for your hull number , and the thread and taper , keyway length depth and key design. specify diameter and other specs are in mm not in inches for most manufacturers. you need this before you order a custom - fit folding prop.
 
Scallywagger

Scallywagger

.
Feb 21, 2014
137
Hunter Passage 42 St Andrews Scotland
Thank you Mitch. I have an engineer now who will ajust the shaft to the hub. Thanks for your info. Bill
 
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