Concept design 13.5 m Explorer River Motor Yacht

How about compliance to ISO standards where means of re-boarding from water are required?

 

i don`t think about this but i think about ladder on transom

 

I like it ! .... the chunky, tall shape, with high bulwarks.

It will make a secure deck , river cruiser, for a family with small kids.

I dont really know the ergonomics and use of a canal, river boat. I would imagine that cruising in rivers, canals, with a family means lots of " junk " on deck and stopping each night alongside a dock. . Pushbikes, shopping trolley, garden hoses, kids toys, fenders, dock lines..... might be nice to design attractive junk storage... for instance port starboard deck boxs for seating, storage on top of the deckhouse cabin with a pair of pushbikes in between .

Also not sure about a minibar outside. Id rather have a combo folding dinner table built in drinks cooler with seating for six. Fixed Seats aft, in the transom corners make handling docklines a pain.

And since a river cruiser will be coming alongside the dock often, why not design her with big chunky wrap around fendering ....a cross between Wally Tender and a Tug boat. .

 

re-designed topside

 

What everyone has been trying to say politely is, your pictures are pretty (to some) but essentially meaningless, without basic physical dimensions and reasonable hydrostatics.

 

River boats don't usually have these - you're always close to land, and it's easier to climb up the banks and re-board at a mooring. (In my experience!). If you're crossing larger areas of water, then it may be necessary.

I completely agree with this, especially if the boat will be going through locks. If you share a lock with a commercial barge, you can't avoid being pushed against the side or gates by its wash.

This is normal for river boats - more displacement means more tank capacity and living space. You just need to put enough ballast to keep it low enough in the water.

 

Nonsense!
Read the standard...

 

the hull will be made from steel - weight about 10 tons - heavy boat

 

How did you arrive at the 10 ton figure, Micspoko?

 

OK, I just read it. It seems you don't need a permanent boarding ladder, and may not need a temporary boarding ladder, depending on the free board at the lowest point.

I still maintain that most small river craft don't need them. If you fall in and the boat is underway, you will swim to the bank. If the boat is on its moorings, you will also swim to the bank.

 

I like the multi panel wheelhouse window setup...wrap arounds never work well.

Also to make the boat user friendly you need user friendly details.

Imagine bringing a high sided boat alongside a low floating dock at night with the wife and kids as crew..... one of them is going to break a leg climbing over the lifeline and jumping two meters to fasten docklines. Why not cut and recess a flush permanent ladder into the steel topsides in the same area that you will fit the amidships lifeline gate. Ladders built into the topsides really make dingy landings and general low dock living easy. recessed Left foot ,right foot steps look good and work well.
Also consider adding a short tabernacled mast. All boats need a general purpose lifting crane ...bikes, dingies, passerelle hoist.. Another advantage to a mast is the ability to hoist awnings on a rainy day , keep hatches open and make life on a small boat civilized. The deck lighting hung from the mast also makes night docking safe and easy.

 

OK, now You got it.

I would never do it! Good practice say: always stay with boat, never try to swim to the bank/shore as one can easily overestimate his power (current, hypothermia, etc.). It is always easier to pick up person from boat.

 

Let you see a design company, pay some money and take all design drawing

 

new picture

 

OK, making same mistakes... Before one starts drawing, should study standards. There should be a coming of certain height on the entrance.

There are plenty of such pictures in gallery; people really belive they can design boats?
One guy from China 'designed' a sailing cat, but forgot steering station and put engines in bedroom. This is understandable - he never sailed one