47 Meters Down: The Next Chapter

[virtualRuben]

The spgs in the new movie are even better -- they have an added feature to make things simpler for the audience. I won't spoil it completely -- but I wonder if such spgs even exist.

Like an spg that displays comments based on the amount of air left? For example, in order from high to low:
You're fine - You're still fine - Time to turn back - Surface please - Maybe you should start worrying - You're still breathing? - Shark bait

 

[MrVegas]

WARNING: minor spoiler alert.

Okay -- as it difficult to truly "spoil" this movie -- I'll reveal this one. The spgs in "47 Meters Down Uncaged" display air remaining in terms of "percent." In other words, "60" on the spg indicates 60% of air remaining.

 

[Jcp2]

I wonder why no fins?

 

[MrVegas]

I wonder why no fins?

I wondered this too. (Although there is a brief explanation in the film.) I think the real reason is that fins block the camera too much. Depending on what angle you were shooting from, the fins could take up a lot of screen space. Or maybe the fins stir up stuff more than just feet.

 

[Chavodel8en]

Since this is scubaboard,

Or maybe the fins stir up stuff more than just feet.

They need to learn to frog kick, and to stay in horizontal trim.

 

[Jcp2]

I was thinking about the spg, and maybe with an AI computer, you could develop a “time to empty” metric similar my car’s range and miles remaining calculation. It would change according to depth and breathing rate, but we already have indicators that are state conditional like NDL time and car mileage already.

 

[Manatee Diver]

I was thinking about the spg, and maybe with an AI computer, you could develop a “time to empty” metric similar my car’s range and miles remaining calculation. It would change according to depth and breathing rate, but we already have indicators that are state conditional like NDL time and car mileage already.

They already have that, most AI computers provide air time remaining.

 

[MrVegas]

They already have that, most AI computers provide air time remaining.

Interesting -- do you have to input the tank size into the computer before you start? (And what would happen if you forgot to switch the size from, say, an HP120 to an LP72?)

 

[GreggS]

Interesting -- do you have to input the tank size into the computer before you start? (And what would happen if you forgot to switch the size from, say, an HP120 to an LP72?)

You do not. Mine takes the pressure reading at the beginning if the dive regardleas of the tank size and calculates the remaining air time down to the minimum air pressure I have set. I have my minimum set at 500 psi so my DC will tell me how much air time I have left until I reach that setting.

The air time will fluctuate depending on depth and air used. For example, I could be at 95 ft showing 10 minutes left but if I ascend to 50 ft it would change and show a longer time. Heavier breathing due to exertion is also a factor. All this is done automatically.

I use a Suunto Vyper Novo.

 

[cerich]

Interesting -- do you have to input the tank size into the computer before you start? (And what would happen if you forgot to switch the size from, say, an HP120 to an LP72?)

why would you?

The computer has the pressure starting , pressure drop with respiration in real time and depth, easy calculations after a few mins of baseline gathering. It doesn't need to know cylinder size for more than "good enough".