Have you driven backwards? - Page 2 - SailNet Community
Reply
 
LinkBack Thread Tools
post #11 of 18 Old 10-05-2007
Galley Goddess
 
Join Date: Feb 2007
Location: Oregon
Posts: 91
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
Yes, I have backed up. I actually have backed my boat out between a double row of docked boats. The trick is to have 'way' meaning speed. If you can get your guy to sit down and be still, you can practice out on the water. My hubby doesn't like to wait to get the sails up... so I have to demand to get practice time.

If you can work on it in nice conditions it helps. You just never know when you may need to do that.

I stand backwards when I back up...but I bring her into the slip bow first. Yes, boys...I bring her in...almost always eat your hearts out! LOL
sailhagg is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #12 of 18 Old 10-05-2007
Senior Member
 
Join Date: Jun 2005
Location: New Orleans
Posts: 2,011
Thanks: 8
Thanked 38 Times in 35 Posts
Rep Power: 11
 
I used to have to back a Catalina Capri 37 into a slip. Much easier to do standing forward of the (huge) wheel and pedestal, facing backwards.

First, you're looking where you're going. Second, you can move the throttle and shift levers without reaching through the spokes while you're turning the wheel.
nolatom is offline  
Quote Quick Reply Share with Facebook
post #13 of 18 Old 10-05-2007
Wandering Aimlessly
 
PBzeer's Avatar
 
Join Date: Nov 2002
Location: Cruising
Posts: 21,244
Thanks: 0
Thanked 94 Times in 91 Posts
Rep Power: 15
     
I face forward, behind the wheel, when backing in. I find it puts me in a better position to get off the boat as I come into the slip solo.

John
Ontario 32 - Aria

Free, is the heart, that lives not, in fear.
Full, is the spirit, that thinks not, of falling.
True, is the soul, that hesitates not, to give.
Alive, is the one, that believes, in love.
JCP


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- Website & Blog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PBzeer is online now  
Quote Quick Reply Share with Facebook
post #14 of 18 Old 10-05-2007
Senior Moment
 
SailorMitch's Avatar
 
Join Date: Nov 2005
Location: MD
Posts: 1,931
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
I look over my shoulder also, but you need to know VERY well how your boat handles in reverse. I find the best approach is to get some speed up then shift to neutral. The boat steers quite well then without having to fight or worry about prop walk. You can always shift back into reverse for a burst of speed if needed.

And if your boat does have noticeable prop walk, learn to use it to your advantage. My current boat doesn't have near the prop walk as my prior boat and I have come to realize how much I relied on the pronounced prop walk of my other boat.

SailorMitch
Sailing winged keels since 1989.
1.20.09 Bush's last day the end of an error !! Hopefully we still have a constitution and economy left by then.


"Compassion and tolerance are not a sign of weakness, but a sign of strength." The Dalai Lama


good planets are hard to find-- a song by steve forbert


I have but one lamp by which my feet are guided, and that is the lamp of experience. I know no way of judging the future but by the past.-- Patrick Henry.

Last edited by SailorMitch; 10-05-2007 at 10:53 PM.
SailorMitch is offline  
Quote Quick Reply Share with Facebook
post #15 of 18 Old 10-05-2007
Senior Member
 
teshannon's Avatar
 
Join Date: Aug 2006
Location: Philadelphia
Posts: 2,713
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
     
SailorMitch,
Now that you mention it I'm curious. Why does one boat have more or less prop walk than another? Is it the shape of the hull below the waterline, keel configuration etc? I have a noticeable prop walk to port and I can't imagine how I'd back into the slip without it.
teshannon is offline  
Quote Quick Reply Share with Facebook
post #16 of 18 Old 10-05-2007
Owner, Green Bay Packers
 
Join Date: Sep 2006
Location: SW Michigan
Posts: 10,318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
       
I stand out on the bridge wing and give my commands to the helmsman and mate in the wheelhouse. Oops...actually i sit thwartships on my small boat and look in the most relevant direction, relieing on perripheral vision to catch the bow swing.

teshannon,
Underwater hull configuration as well as prop location dictate the amount of prop walk along with propeller pitch. With a right hand screw or wheel, the wheel throws water out and forward, against the starboard side of the hull while going astern. This, combined with the semi-vacuume of water the wheel has caused to port, by pulling the water into itself, causes the stern to walk. The shallower the water and the slower the boat is moving, the greater the prop walk.

When going ahead or turning the wheel clockwise, the prop throws the water out to port and aft, where-there is no hull to strike, as well as a rudder to flow over providing directional stability to the prop wash.

The obvious solution that minimizes the effect is an adjustable pitch propeller. By varying the pitch of the propeller, instead of propeller shaft speed, one can go ahead or astern slowly while minimizing the walking of the wheel. This set-up is fairly common on your gas turbine equipped sea-going vessels,usually upwards of 50,000 tons displacement, where the addition of a half million dollar wheel and attendant hydraulic control system is not felt to be an onerous expense.

The only really practical thing one can do to minimize prop walk on a really crabby boat is to reduce the pitch of the prop, which also will reduce the overall speed of the vessel under power, a tough trade-off. Some boats have the propeller shaft offset from the center line of the vessel, that is, not running directly fore and aft, to minimize the effect. I'm not sure that this is an area that has reached an exact science or effectiveness.

On the other hand, the vast majority of us would have the devil's own time docking without prop walk. Once one knows one's boat, and how much she walks, it can be an indispensable manoeuvering aid, at speeds where it has much more effect than the rudder alone.

“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.
sailaway21 is offline  
Quote Quick Reply Share with Facebook
post #17 of 18 Old 10-05-2007
Senior Member
 
teshannon's Avatar
 
Join Date: Aug 2006
Location: Philadelphia
Posts: 2,713
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
     
Sailaway21,
Thanks for the info, much appreciated. I love my prop walk. Without it I could not back into my slip with the very narrow fairway I have.
teshannon is offline  
Quote Quick Reply Share with Facebook
post #18 of 18 Old 10-06-2007
Senior Member
 
Sasha_V's Avatar
 
Join Date: Feb 2004
Posts: 459
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
 
Over the shoulder for 99% of the time. I was crewing on a boat that ran into a semi-submerged cable and put a slice just above waterline into the bow....So we reversed "home" for close to 30 minutes under engine. For that one I turned around and faced the stern!

Sasha
Sasha_V is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Sailing: Around the world (backwards) in 178 days (Independent) NewsReader News Feeds 0 05-20-2006 08:15 PM
Spade anchor comes up backwards bmcald Gear & Maintenance 5 06-18-2005 02:51 PM
ENGINE driven Watermaker tjkassen Gear & Maintenance 2 02-07-2005 01:03 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome