Reply
 
Thread Tools Search this Thread
 
Old 24 April 2007, 08:59   #1
Member
 
Country: France
Town: caen
Boat name: labrax II
Make: HUMBER 600 DESTROYER
Length: 6m +
Engine: DF 140 SUZUKI
Join Date: Nov 2006
Posts: 83
Humber 600 df 140 prop size

Hello,

I tried my new rib last monday, and the propeller is too short.

The prop is a 14X19.

Max speed 36knt with 6300 rpm.

If someone with the same boat can help a poor french ribman...

I think a 14X21, or perhaps a 14X23 could be a better choice.

Thanks

Antoine
__________________
antoine is offline   Reply With Quote
Old 24 April 2007, 09:11   #2
Member
 
Tim M's Avatar
 
Country: France
Town: Côte d'Azur
Boat name: Beaver Patrol
Make: Avon Searider SR4
Length: 4m +
Join Date: Jan 2004
Posts: 5,934
6250 is the max revs for that engine so it sounds like its reving about right at wot....
__________________
Tim M is offline   Reply With Quote
Old 24 April 2007, 09:14   #3
Member
 
Country: France
Town: caen
Boat name: labrax II
Make: HUMBER 600 DESTROYER
Length: 6m +
Engine: DF 140 SUZUKI
Join Date: Nov 2006
Posts: 83
The problem is that i can push more the engine...
__________________
antoine is offline   Reply With Quote
Old 24 April 2007, 18:08   #4
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,726
Quote:
Originally Posted by antoine View Post
I tried my new rib last monday, and the propeller is too short.
It isn't supposed to reach the bottom though

Sorry I could not resist that obvious and extremely poor joke
__________________
A Boat is a hole in the water, surrounded by fibreglass, into which you throw money...

Sent from my Computer, using a keyboard and mouse
BogMonster is offline   Reply With Quote
Old 24 April 2007, 18:46   #5
Member
 
Country: UK - England
Town: Newcastle Staffs
Boat name: blue it
Make: ribcraft 7.5
Length: 7m +
Engine: suzuki df225
Join Date: Dec 2005
Posts: 507
Send a message via AIM to Top banana
I run with a 14x21 ally on my 6.2 which carries some weight, 37knts at 6,000 revs WOT. you dont sound to far off the mark considering that mine is a sports hull,
__________________
Top banana
Top banana is offline   Reply With Quote
Old 24 April 2007, 21:20   #6
Member
 
Erin's Avatar
 
Country: UK - Channel Islands
Town: A large rock
Boat name: La Frette
Make: Osprey Vipermax
Length: 6m +
Engine: 200 Suzzy
Join Date: May 2004
Posts: 2,893
Bonjour,

I changed from a 14x19 on my suzuki df 90 to a 14x21 and it reduced the revs by about 600. Combien coute le propulseur 14x21 en France (et le 14x22 inox)?

Keith
__________________
Erin is offline   Reply With Quote
Old 24 April 2007, 21:53   #7
Member
 
Country: UK - Scotland
Town: ayr
Boat name: withanee iii
Make: humber
Length: 5m +
Engine: outboard 115
Join Date: Feb 2007
Posts: 19
prop

hi i have same new humber with a yamaha 115 four first trip last week and am getting identical performance
let me know how you get on if you do change prop
__________________
tamsrib is offline   Reply With Quote
Old 27 April 2007, 20:33   #8
Member
 
Country: France
Town: rambouillet
Boat name: Quark II
Make: arimar
Length: 7m +
Engine: 225 suzuki
Join Date: Apr 2007
Posts: 3
if your boat is not able to exceed 36 knots sell it my friend or buy an Italian boat

sorry

A+ Adonf
__________________
adonf is offline   Reply With Quote
Old 28 April 2007, 08:48   #9
Member
 
Country: France
Town: caen
Boat name: labrax II
Make: HUMBER 600 DESTROYER
Length: 6m +
Engine: DF 140 SUZUKI
Join Date: Nov 2006
Posts: 83
My dear Adonf,

I hoppe that you will never say one more time that you don't speak english...

For our trip, you will speak and i will drink.

Antoine
__________________
antoine is offline   Reply With Quote
Old 28 April 2007, 09:36   #10
Member
 
Country: France
Town: rambouillet
Boat name: Quark II
Make: arimar
Length: 7m +
Engine: 225 suzuki
Join Date: Apr 2007
Posts: 3
I used my friend google ;

For our trip, you will speak, it's better your boat is too slow but it is beautiful

A+ Adonf
__________________
adonf is offline   Reply With Quote
Old 30 April 2007, 08:25   #11
Member
 
Country: France
Town: caen
Boat name: labrax II
Make: HUMBER 600 DESTROYER
Length: 6m +
Engine: DF 140 SUZUKI
Join Date: Nov 2006
Posts: 83
I tried yesterday a 14X21 prop.

It was better, but...

With five persons on board, 37,7 knt, but still 6200 (at least) rpm.

It's too much, and i will try a 14X23 next week.

Antoine
__________________
antoine is offline   Reply With Quote
Old 30 April 2007, 08:37   #12
Member
 
Country: Italy
Town: Ravenna
Boat name: isla II
Make: sessamarine
Length: 6m +
Engine: otboard yamaha f 150
Join Date: Apr 2007
Posts: 7
Send a message via Skype™ to isla
Quote:
Originally Posted by antoine View Post
Hello,

I tried my new rib last monday, and the propeller is too short.

The prop is a 14X19.

Max speed 36knt with 6300 rpm.

If someone with the same boat can help a poor french ribman...

I think a 14X21, or perhaps a 14X23 could be a better choice.

Thanks

Antoine
in theory to pass from 19 " to 23 ", the motor would have to come down of 800 turns the average e' 200 turns to inch
__________________
isla is offline   Reply With Quote
Old 21 May 2007, 13:03   #13
Member
 
Country: France
Town: caen
Boat name: labrax II
Make: HUMBER 600 DESTROYER
Length: 6m +
Engine: DF 140 SUZUKI
Join Date: Nov 2006
Posts: 83
Hello,

I tried a 14X23 prop last WE and it seems to be better:

42 knts and 6100-6200 rpm.

Two persons on board, about 85 L...

Antoine
__________________
antoine is offline   Reply With Quote
Old 21 May 2007, 13:15   #14
Member
 
Country: Other
Town: Oakley
Boat name: Zerstörer
Make: Ribcraft
Length: 5m +
Engine: Suzuki DF 140
MMSI: 235050131
Join Date: Jun 2003
Posts: 3,931
A + Adonf,

I have doen some research on my Suzuki DF 140.

Below is the link.

http://rib.net/forum/showthread.php?...uzuki+140+prop

Basically I ended up with a custom 22" prop. Far better than the Suzuki job. Just waiting for a new one as I've bent my old one but thats another story.

Regards Nick.
__________________
https://www.xfire.com/download/
Biggles is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 12:55.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.