1 minute ago, Auroralampinen said:

Yes on the jb spielwaren last photo there is blue pump wich is normaly found in motorized sets and those bottom cranks move the pump and on last photo you can see on the yellow sylinders top inlet a blue hose you have to zoom to see those

Yes you are right. Thanks, did not see it before. It shows also two pneumatic switches

4 minutes ago, Auroralampinen said:

Yes on the jb spielwaren last photo there is blue pump wich is normaly found in motorized sets and those bottom cranks move the pump and on last photo you can see on the yellow sylinders top inlet a blue hose you have to zoom to see those

Heureka i foundet the switch weirdly this has two switches on front   https://pin.it/7wMm49ggl

Edited July 1, 2024Jul 1 by Auroralampinen
Little bit more details

I love dark turquoise! I’m glad to see so many recolors and finally get the #4 connector in turquoise released officially. The set itself looks very interesting and I’m glad it’s not just another car.

10 minutes ago, Auroralampinen said:

Heureka i foundet the switch weirdly this has two switches on front   https://pin.it/7wMm49ggl

So this uses those 2 switches to controll Independently those fins thats amazing

Wouldn't expect to see working pneumatics, but it's a good surprise in my book!

 

How does this work

 

18 minutes ago, Ngoc Nguyen said:

How does this work

It could be that the yellow string make a turn around the (ballpin ?) at the edge of the gray lever and make a loop under the sail so you can operate the lever by making turns with the string on the 8t.

The page is up https://www.lego.com/en-us/product/emirates-team-new-zealand-ac75-yacht-42174

This set is basically the ultimate successor to 42074 and 42105.

 

I believed manual cycling pedal are acting as motorized motor pumping the blue pneumatic pump "19482"  and connected to that 2 yellow pneumatic cylinder. 
 

Lego description: 

• Pneumatic function – Use the pneumatic function to pump up the hydrofoil cant arms with this LEGO® Technic™ interpretation of the hydraulic method used for canting the arms on a real racing yacht

1 hour ago, Ngoc Nguyen said:

How does this work

I believe those cranks in the base automatically pump air to the valves, which appear to be automatically switched.

Well this looks better than expected! 

Not a bad little set, good functions and a good parts pack.

This looks like a really cool set! I have the previous two boats and they are the only two models I haven't disassembled or just bought for parts.

I really like how they have plenty of exposed functions as opposed to being hidden behind panels.

Happy this one didn't disappoint and includes a stand - that catamaran is still begging for one.

I might actually get it.

Edited July 1, 2024Jul 1 by Divitis

4 hours ago, LegoTT said:

It could be that the yellow string make a turn around the (ballpin ?) at the edge of the gray lever and make a loop under the sail so you can operate the lever by making turns with the string on the 8t.

Seems like it! The rubber band is tied arround the ballpin.

Spoiler

 

70 studs (56cm) long to 23m in reality is about 1:40, so it's pretty much minifig scale.  I don't see much sign of studs or bars for minifigs to attach though.

This is a lot better than I expected when I heard about the “water vehicle” rumors.  Quite a nice set, and pneumatics are a really nice touch. 
 

I don’t see any switch anywhere though.  I wonder if it’s connected to the sail, and moving the sail moves the valve?  

These features sound pretty cool.

This set is a nice successor to 42074 and 42105 in terms of size, functions, licensing, etc. I remember the visual size of 42105 being impressive for the low parts count, 42174 should look even bigger with the huge sails. The box will need to be pretty big to avoid bending them though.

I think this will be the first set to have the small pneumatic pump driven by a hand crank instead of a motor. I'm guessing this is due to the small volume of the small pneumatic cylinders. If the large hand pump was used, they would extend quickly in a single pump, rather than slowly and smoothly like the real hydraulics.

17 hours ago, dhc6twinotter said:

This is a lot better than I expected when I heard about the “water vehicle” rumors.  Quite a nice set, and pneumatics are a really nice touch. 
 

I don’t see any switch anywhere though.  I wonder if it’s connected to the sail, and moving the sail moves the valve?  

There are 2 valves, they are connected the red levers on the stand. 

Guy with the inappropriate facial expression strikes again!

Anyways, I am SHOCKED that LEGO actually made a boat with pneumatics, for the first time too! Last time we had anything even close to this was with the search sub in 1997. 

Also the way you pump air is with a hand crank operated pneumatic compressor. Basically the same setup as in any motorized pneumatic set, but with a crankshaft instead of a motor. I wonder why this is the case, instead of just having a manual pneumatic pump. Maybe there's official motor upgradability with instructions included? Just like the old power functions manual pneumatic sets, where you could upgrade it with the power functions motor set?

I am VERY excited for this, and to see just how well the manual pneumatic compressor works, and whether you will be able to upgrade it with a motor. Even if there are no official motor upgrade instructions, it should be very easy to just attach a motor to the crankshaft.

1 hour ago, Unbrickme said:

Also the way you pump air is with a hand crank operated pneumatic compressor. Basically the same setup as in any motorized pneumatic set, but with a crankshaft instead of a motor. I wonder why this is the case, instead of just having a manual pneumatic pump.

I think the answer is in the previous post by @lmdesigner42 . If you have ever operated a small cylinder with a manual pump, you should have noticed that one single push on the pump completely extends/rectacts the cylinder in a fraction of a second.

This system looks much more smoother and will give the correct amount of air to move the cylinders slowly.

2 hours ago, mpj said:

I think the answer is in the previous post by @lmdesigner42 . If you have ever operated a small cylinder with a manual pump, you should have noticed that one single push on the pump completely extends/rectacts the cylinder in a fraction of a second.

This system looks much more smoother and will give the correct amount of air to move the cylinders slowly.

Exactly this, it’s that simple, nothing to do with motorization I guess. Which I think is actually a nice mechanism / use of pneumatics, and probably also resembles how the real life counterpart works / is operated(?)

Probably gives it a softer touch as well, 42157 is a big sturdy tractor and using the manual pump flexes it quite a bit.  Would need to have been mounted on the base, which makes that less removable (if it's intended to be at all)

Edited July 2, 2024Jul 2 by Stereo

7 hours ago, Stereo said:

Probably gives it a softer touch as well, 42157 is a big sturdy tractor and using the manual pump flexes it quite a bit.  Would need to have been mounted on the base, which makes that less removable (if it's intended to be at all)

The feature to remove the boat could have been playing a role for TLG's decision against a pump whicht has to be pressed (besides the smoother motion, which could have been achieved by a small manual pump as well):

If there was a pump mounted on the stand, a pneumatic hose would be necessary to vonvey the air into the boat; this pneumatic hose had to be disconnected every time you take the boat from the stand. 

Whereas a clever axle connection (maybe by a pair of gears on at the bottom of the boat and the other at the top of the stand, respectively; or a dog pin/tappet mechanism (is this the correct term?)) will disconnect and reconnect in an elegant way...

 

Edited July 3, 2024Jul 3 by Timewhatistime