I always understood that prop walk was a result of gyroscopic effect just like on an airplane with a centerline propeller. I understood that it was much less pronounced going forward because of the location of the propeller in relationship to the rest of the boat. In backing up, the rudder is less effective at controlling the yaw until sufficient water flow is established.
When backing into a slip, we take the line from the piling that will hole the port bowline, take it to the port aft clear and back up hinging on the piling (slip on the port side of the boat). The line configuration keeps the stern from walking to starboard as my C&C32 tends to do. Once we are moving backward with sufficient water flow over the rudder, we move the line forward to the port side bow cleat and complete the docking as usual with boathook/friendly slip neighbors. Neil 1982 C&C32 FoxFire -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Gary Nylander via CnC-List Sent: Saturday, October 22, 2016 11:49 AM To: cnc-list@cnc-list.com Cc: Gary Nylander Subject: Re: Stus-List Slip Choice, backing in The 30-1's have a shaft which is offset to port. I assume that was for one or two reasons. First, to minimize prop walk in forward? And for ease of getting the shaft out without dropping the (rather heavy) rudder. No fun to back the boat. I start way early and drive it backward slowly and then pull it out of gear and drive with the rudder. As was mentioned on an earlier post, it looks funny but is effective. My old slip was down a narrow channel with the slips on one side and a bulkhead on the other - on the bulkhead was a major pedestrian path toward our museum. After many back and forth near mishaps and a lot of tourist entertainment, I switched to the long backward drive down the channel. Gary -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew Burton via CnC-List Sent: Saturday, October 22, 2016 11:18 AM To: cnc-list@cnc-list.com Cc: Andrew Burton <a.burton.sai...@gmail.com> Subject: Re: Stus-List Slip Choice, backing in I'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C&C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 > _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
