If you need helicoptered to hospital from the boat it will take longer now…

[[70521]]

wait till they introduced the 'clean green zero emmission' electric helicopters....
oh how i laughed at the idea!

You might be surprised in a few years.

What is your take on electric motorcycles or the 2022 speed record of 222 knots (256 mph 411 kmh) for an eclectic car?

https://www.topgear.com/car-news/el...top-speed-becomes-worlds-fastest-electric-car.

 

[Romeo]

"Landing sites at Raigmore Hospital in Inverness, Glasgow's Queen Elizabeth and Gilbert Bain in Lerwick have been cleared for use"

The QEUH one is on the roof, so no car parks to worry about, but I think they clear the children from the rooftop playground. If something goes real bad on your west coast boat, you are probably going to be going to Glasgow QEUH, so no change.

 

[[70521]]

The QEUH one is on the roof, so no car parks to worry about, but I think they clear the children from the rooftop playground. If something goes real bad on your west coast boat, you are probably going to be going to Glasgow QEUH, so no change.

Certainly when my late mother was a nursing sister in the Belford, Fort William the choice of hospital, Glasgow or Edinburgh, for injured climbers really depended on head injuries.

 

[trapper guy]

You might be surprised in a few years.

What is your take on electric motorcycles or the 2022 speed record of 222 knots (256 mph 411 kmh) for an eclectic car?

https://www.topgear.com/car-news/el...top-speed-becomes-worlds-fastest-electric-car.

when you get down to energy density, batteries will never win over gasoline.

 

[RunAgroundHard]

Whatever drives the helicopter blades in the future, the downwash impact will still have the same risks as this thread is discussing and has caused the shortage of landing spaces at hospitals. Hence, power type is moot point, in that context.

 

[[70521]]

when you get down to energy density, batteries will never win over gasoline.

Currently....

 

[boomerangben]

There are two issues at play here…… 1) modern helicopters are designed for speed rather than their hovering characteristics (not to say modern helicopters are less capable in the hover but aerodynamically they are optimised for fast forward flight, whereas the Seaking was designed as an anti submarine pinger platform and as a result had a less enthusiastic downwash but was slow)
2) space around hospitals is becoming increasingly congested meaning helicopter landing sites and the routes in and out are tighter/ non existent. If you want hospitals to be easily accessible by land, with walkways, cycle paths, roads and car parks, not to mention bigger hospitals in built up areas, HLS big enough for large SAR aircraft are going to be a thing of the past.

 

[trapper guy]

Currently....

not ever

 

[westernman]

when you get down to energy density, batteries will never win over gasoline.

Of course in terms of energy per kg, which is an important criteria for airplanes, the best by far is hydrogen.

To do better than hydrogen, you need a nuclear reactor.

 

[penberth3]

Of course in terms of energy per kg, which is an important criteria for airplanes, the best by far is hydrogen.

Does that include the weight of the storage cylinders? I'll guess liquid fuel in a thin metal tank is the winner.

 

[westernman]

Does that include the weight of the storage cylinders? I'll guess liquid fuel in a thin metal tank is the winner.

Yes. See some of the stuff presented by Airbus.

 

[AntarcticPilot]

Yes. See some of the stuff presented by Airbus.

Short-term storage isn't a big problem; storage for the length of a flight, for example, or from fuelling a rocket to launching it. But storage for much longer than that starts to run into problems; hydrogen leaks through pretty much anything. Rockets whose countdown is paused more than a certain length of time have to be defuelled, for example. I