design? Towing a 12 ton power boat hull
takes a lot more energy than towing a sailboat hull of the same length/weight. Tip: Remove the propeller(s) and clean the hull before towing to reduce drag.
Tow on the hip to and from the slip. Observe inland and international towing regs wrt lights, dayshapes, sounds, vhf
No tow post? No problem.
1. Be sure the bridle legs at both ends of the hawser are equal length.
2. Use 600' of 1" 3 strand nylon tow line to minimize shock on your RIBs stern cleats
AND to make steering
straighter. Be sure to use chafe protection on both bridles. That's a long tow and 1" chafes through quickly.
3. Make sure the rudder
on the tow is centered and properly lit so traffic knows what you are at night.
4. Light your towboat properly for night ops and keep your VHF
turned on loud.
Steering by hand, your 200 mile trip will be at least 10 to 20% longer due to steering error. A little RIB wanders; just doesn't tow very straight. So, make sure you carry sufficient fuel
to go 300 miles.
Figure your towing speed will be about 5 knots per hour in calm weather. 240 miles / 5kts = 48 hours.
If you burn 4 gph that's 192 gallons of gas. Add the Rule
of thirds for fuel
management and that's 255 gallons you should have on board for a safe margin.