Two motors or One?

[Hugz]

I'm thinking two long shaft motors as she has a fairly deep transom. The second motor mainly for reliability and at the times when there is a bit of a windage problem.

Going to have to raise the bridge a tad if going upstream.

Taken from the Opera house. She is rather large. Apparently contains a shopping centre!

[THCL500J8]

Mate i had a look at her when she was in Brisbane, your going to need a couple of 102plus long shafts, and a couple of extra long range tanks.
Yes there is a shopping center, and yes the Misses did buy something.

[Hugz]

She is leaving Sydney at 9pm tonight heading for Brisso. Probably best to keep the Missus at home this weekend..... What did she buy? I'm guessing they don't have a Seagull spares shop onboard.

[skyetoyman]

Bit of a bugger to change a prop shaft spring though.

[Hugz]

Yep, that it would be, probably get a sore back starting them too.

She is in Brisbane now and then at Yorkey's Knob. Thats got be in Queensland

[THCL500J8]

Yep, its a suburb just north of Cairns. its were the P&O terminal is. 10 or 15 km North.

[Robin Anderson]

Two engines definitely the way to go for reliability but I would recommend just one longshaft centrally mounted with the other engine being a short shaft mounted slightly off the centre line on a swing down bracket. The fact is that you would not need to run both engines at the same time - ample thrust from just one, providing it has the large 5 bladed 11""diameter Hydrofan. Running both engines at the same time would just cause too much noise (passengers may complain) and double running costs. The swing down bracket is the one to use when operating the craft in shallow water because it will lift up should you hit the bottom with the skeg, thus avoiding potentially expensive damage to a fixed transom mount. Should be able to reach hull speed in a few years, given a fair wind and tide
Robin.

[Hugz]

Indeed! Some care might be needed with some rubber dampening on the swing down bracket. I would have no wish to subject the passengers to any vibrational discomfort. Stirred but not shaken should be the motto here.

[1650bullet]

Don't forget the 10-1 fuel--oil ratio. I would go for a F N R as well for something that big

[Hugz]

Yep, 10 to 1 it is, bio-degradable of course. I note there are a lot of ports either side so plenty of room for pairs of sweeps for stopping and reverse. They do have a galley class I presume?

[Rob Ripley]

I was fascinated watching a cruise liner spin (bow and stern thrusters and twin drive pods) in its own length in Milford Sound, all the while showing the forward view on the wide screen.

[CatiGull]

Don't forget the 10-1 fuel--oil ratio. I would go for a F N R as well for something that big

R is made redundant by efficient boat handling, surely.

[Robin Anderson]

Don't forget the 10-1 fuel--oil ratio. I would go for a F N R as well for something that big

R is made redundant by efficient boat handling, surely.

Exactly Catigull, it would also confuse the passengers if the vessel started going astern, they would all be facing the wrong way, some of em might be quite elderly and the scenery rushing past backwards could unsettle them.
Robin

[Rob Ripley]

I suppose it was a bit confusing for a few, but after a Piña Colada (or two) who could tell where anything was going !

[Rob Ripley]

One plus of putting a Seagull together from a box of parts is that the tiller can now turn almost 90 degrees to the transom - my boat can now spin in her own length .... works well with a 40+, the C100 just cavitates !