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On the water Help User Group - Join to Help or post @HELP when you are in urgent need

JDFester

Active Member
Messages
26
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Location
Loganville, GA
Boat Make
Yamaha
Year
2013
Boat Model
AR
Boat Length
19
Using a bungee sectioned tube rope to hopefully absorb small shocks; my tow point to his bow eye. Going about 8mph at 6900 rpm... not getting more speed for more throttle, so this seems to be about the optimum. Gone about 4 mi, likely about that to go.
 

JDFester

Active Member
Messages
26
Reaction score
18
Points
27
Location
Loganville, GA
Boat Make
Yamaha
Year
2013
Boat Model
AR
Boat Length
19
Got him home and loaded on the trailer. Thank you all!
 

swatski

Jetboaters Fleet Admiral
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Location
Saint Louis, MO
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
Got him home and loaded on the trailer. Thank you all!
Sorry I'm late to the party! Glad it worked out!
The beauty of jet propulsion is that you can develop full thrust at any speed, so as long as you are not cavitating excessively - you can push the engine as hard as you want and will not damage anything.
The two things to watch and avoid is excessive cavitation and overheating the engines (caused by cavitation - inadequate cooling water supply) - keep an eye and touch the pisser streams - water should be hot but not scalding.

--
 

JDFester

Active Member
Messages
26
Reaction score
18
Points
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Location
Loganville, GA
Boat Make
Yamaha
Year
2013
Boat Model
AR
Boat Length
19
I did check the water stream several times and it was always within the usual range. Just wasn’t used to seeing the exhaust. I’d done a few shot tows at no-wake speeds before, but this one was around 8 miles with a hungry and increasingly iritable first mate aboard (we were supposed to be meeting them for dinner and had just docked at the restaurant when my brother called and said he’d blown the belt on his water pump/alternator a quarter mile out), hence the interest in getting her to some food as quickly as reasonable.

I played around with the towing speed and found 6-8mph to be as fast as I could go without excessive cavitation; the boat in tow sits pretty deep in the water, so there was quite a bit of drag; actually looked like a decent surf wave coming off his boat at times.

upload_2018-10-13_23-21-30.jpeg
 
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