The Biggest was a Sunseeker Tomahawk 37 Mk1 with twin 7.4l Petrols..........and it nearly yanked my arms out. The biggest boat I kneeboarded behind was a sunnseeker Mohawk 29....and I got serious air crossing the wakes!
In the day I would try skiing behind any boat....but not quite fit enough anymore!
Ski-ed and knee boarded form a 28' bayliner. Huge wake when knee baording...........twas fun. Think the prob you would have much bigger than 28' would obviously be the size / depth of wake and thats assuming you have the acceleration to get the ski-er up fairly quick. Would be fun to try though, let me know were and when /forums/images/graemlins/grin.gif
No problem with torque with what you have .... I have done it behind a Fairline Phantom 32 (1977 ish) with 2 x VP AQD40's (130 hp each).
No problem getting up and staying up .... crossing the stern wake was a bit scary at first, but OK after a while ... you may wish to use longer rope than std..... and do look out for those who may try to cross behind you...
I tow my son on his wakeboard regularly behind my Princess V45 he gets out of the wake easily but doesn't like crossing back (Wimp). It looks quite a sight up the Conwy River.
You can ski behind any planing mobo, but if it accelerates slowly you need a fairly proficient skier to stay on whilst it builds up speed, and the main problem is that if they fall off its a bind to turn round, deliver the rope back to them, and set up to start them off again, so a big boat is really not suitable for learning to ski. The other factor is you normally want a protected area to ski, so the waters a bit flatter, and there aren't many protected waters where the other water users would welcome a big mobo whizzing around.
It's perfectly feasible though, we skied behind our S37, and I used a wakesurfer behind the T46.
There was a photo in one of the IPC mags a couple of years ago, of about 10 people ski-ing behind one of the bigger Windys (I think possibly a Typhoon, therefore 43 ft).
Looked an absolute hoot! /forums/images/graemlins/cool.gif
Some years ago they did a record attempt over here of pulling 120 skiers behind one of these canal Towing vessels, and they succeeded !!
so you don't even need a planing boat,
further agree with houghn, the recovery of the skier and handing the rope is a problem with a bigger boat. Besides the other sport boaters who don't like you to be manouvring with your big cruiser in their water.
Skiing behind a ferry should work, but make sure the rope is long enough ;-)
Done it with our Targa. No problem at all. From the helm you cannot even feel anything any different to normal. You do need someone on permanent watch. The rope needs to be longer than norm, so skier(s) is clear of the "hump" I was amazed as to how quick the skiers actually got up.
I knew a bloke years back with a Dell Quay Ranger 27 (still my dream boat) "Romey V" if it still exists, and he pulled five skiers simultaneously behind it. An amazing site.
Also, we did see someone skiing while crossing the channel once, behind a large flybridge jobbie.