EricJ
Active member
what a mess….
Mooring a Mangusta with surface drives…
- Thread starter EricJ
- Start date
SC35
Well-known member
So many questions.
Why does the boat on the LHS not drop fenders to match the incoming boat a lot earlier?
Why does the boat on the RHS have only two fenders attached plus crew fenders roving?
Why does the skipper keep backing off when almost home?
Then doesn’t just shut down the engines when there?
A boat with those drives needs a stern thruster and a decent bow thruster too.
Why does the boat on the LHS not drop fenders to match the incoming boat a lot earlier?
Why does the boat on the RHS have only two fenders attached plus crew fenders roving?
Why does the skipper keep backing off when almost home?
Then doesn’t just shut down the engines when there?
A boat with those drives needs a stern thruster and a decent bow thruster too.
Parabolica
Active member
Definitely the wrong name for that boat. It should have been called, “Clueless”
Bouba
Well-known member
It’s hard to park with a 28 knot cross wind
EricJ
Active member
Indeed. also the marineros on the starboard side seem to make it worse around 5:00. The boat moves rapidly to port.
MapisM
Well-known member
Not really.
She's propelled by waterjets (NOT surface drives!), which means that you can move her wherever you like even with gale force winds - particularly astern.
If you know how to handle them, that is!
EricJ
Active member
Thanks. Did not know they made these with waterjets.
Parabolica
Active member
The flags on the boat aren’t blowing about. Jet drives are not ideal, especially if no thrusters to support it (surely there must be), but there are so many mistakes happening during that berthing, that you’d have to think they are complete novices.
MapisM
Well-known member
Why "surely", have you ever seen a waterjet powered boat with a stern thruster?
Aside possibly from triple engines boats, with external engines on shafts and the (non-steerable) central waterjet working only as a booster.
But that's not the case here.
Portofino
Well-known member
Wonder if there’s a problem with the buckets ? The port one looks higher when reversing .Skewing the thing .
Helm is unaware of this bucket issue and perplexed .
Helm is unaware of this bucket issue and perplexed .
penfold
Well-known member
Have you ever driven a jet drive? It's like having an azimuthing stern thruster. Total horlicks though, might have been less fraught with a little less throttle.
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jointventureII
Active member
Glad at least one person has alluded to the fact that this might not be totally due to the skipper. It's so easy for joe public to stand on the sidelines and comment.
Could be the sensors (the best guy I've ever seen driving jets was made to look a total fool due to some dodgy sensor feedback), could be a load of other issues. One of the jets seems to be permanently engaged, might be stuck, might have a problem declutching...
There are 3 marina tenders out for a boat that is about 30m long, something clearly isn't right. It might even be that the skipper, wisely, has called ahead to say "listen I've never berthed a twin jet boat before, can you get a couple of guys to help me" - the boat got into the berth with no damage albeit a bit slowly.
A few years ago, a 30-odd metre twin shaft boat came alongside us in Capri. It took ages, for a relatively simple procedure, other boats had fenders out, people screaming. Everyone on the quay, the other boats, were all laughing and making fun. I saw the skipper a few mins after - he didn't say anything so I just asked how his day had been. He was only young, no more than 21....
"Well this morning I was the deckhand, then the boss fired the captain when we were out at anchor and took him to shore on the tender. When he came back to the boat, he expected me to moor it, I've never been at the helm of one of these" - poor kid was still shaking.
Parabolica
Active member
Just my Williams 325 and so i’d certainly want them supported with a bow and stern thruster as by comparison to a pair of shafts i’d say they are not so proportional.
Bandit
Well-known member
The boat has twin Rolls Royce KAMEWA waterjets. They appear to be operating independently ie steered independently.
Waterjets are excellent for manoeuvring if you have enough distance between them. Also if you have a joystick with a steering computer.
On a Wavepiercing catamaran such as Condor 10 which I was involved with where you had two engines and jets in each hull each with a bucket for steering and reverse and 22m between the centrelines and a good joystick/computer the steering was excellent never requiring a tug.
On this boat they are about 2m apart giving you little leverage, whether the boat has a bow thruster I don't know. Whether the boat has a joystick/computer I don't know.
It could be because the skipper is not used to waterjets or that there is a problem?
Waterjets are excellent for manoeuvring if you have enough distance between them. Also if you have a joystick with a steering computer.
On a Wavepiercing catamaran such as Condor 10 which I was involved with where you had two engines and jets in each hull each with a bucket for steering and reverse and 22m between the centrelines and a good joystick/computer the steering was excellent never requiring a tug.
On this boat they are about 2m apart giving you little leverage, whether the boat has a bow thruster I don't know. Whether the boat has a joystick/computer I don't know.
It could be because the skipper is not used to waterjets or that there is a problem?