 |
05-29-2017, 08:31 PM
|
#1
|
|
Newbie
City: lynn ma
Join Date: May 2017
Posts: 1
|
1981 ocean alexander 43
Brand new to this site. Also new to trawlers. Have been a power boater for over 50 years. Currently own a 1973 Post 40 convertible as well as the new purchase of the Ocean Alexander. Need to find original specs on prop size, etc. She is a 43' aft cabin with a single Lehman 120 hp. Current prop(when purchased) is a 28x20 three blade. I have not launched yet so I have no idea of the cruise speed, etc. Any and all info regarding the right propeller would would be appreciated. :  Thanks.
Advertisement
|
|
|
|
05-29-2017, 08:36 PM
|
#2
|
|
Guru
City: Beaverton, Ontario
Vessel Name: Looking Glass
Vessel Model: Carver 370 Voyager
Join Date: Nov 2012
Posts: 1,240
|
No information on your Ocean but welcome to the forum
__________________
Allan
|
|
|
|
|
05-29-2017, 08:55 PM
|
#3
|
|
TF Site Team
City: Au Gres, MI
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 11,181
|
Welcome also, someone will chime in with some info.
|
|
|
|
06-01-2017, 12:28 AM
|
#4
|
|
Senior Member
City: Carrollton, Va
Join Date: Sep 2014
Posts: 457
|
Quote:
Originally Posted by rteichelII
... the new purchase of the Ocean Alexander. Need to find original specs on prop size, etc. She is a 43' aft cabin with a single Lehman 120 hp. Current prop(when purchased) is a 28x20 three blade. I have not launched yet so I have no idea of the cruise speed, etc. Any and all info regarding the right propeller would would be appreciated. : Thanks. |
Said boat would not be in Chesapeake, Va. would it?
|
|
|
|
|
06-01-2017, 05:14 AM
|
#5
|
|
Guru
City: Carefree, Arizona
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 9,207
|
For prop size, go to the calculator at boatdiesel.com - weight is important to know. Can your yard weigh the vessel on the slings? With a single Lehman on your (how) heavy vessel you don't want it over propped.
Does previous owner have any speed vs RPM data? During sea trial was a max RPM test done, both in neutral and while underway? Any over heating show up? Last but not least, verify RPM accuracy with a photo tach.
|
|
|
|
|
06-01-2017, 05:31 AM
|
#6
|
|
Enigma
City: Slicker?
Join Date: Oct 2007
Posts: 15,332
|
Greetings,
Welcome abaad.
__________________
__________________
RTF
|
|
|
|
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Trawler Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
All times are GMT -5. The time now is 06:01 PM.
