On Sun, 06 Mar 2022 13:47:11 -0800, john firth wrote:

> Burning the H2 for propulsion; so how is lift maintained/?
> JMF

Oversized gasbag, of course!

There are loads of great daft ideas in SF novels.

One of my favourites is a coal-powered house-keeping robot in one of
Harry Harrison's 'Stainless Steel Rat' novels, on a planet too poor to
import more than the robot's brain and so technologically backward to
make anything more advanced than steam powered machines.

The horse-drawn Zeppelin and its more advanced, and bigger, railway
locomotive-drawn version are just more of the same.

On 3/3/22 21:37, kinsell wrote:
> On 3/3/22 16:41, Bob Faris wrote:
>> On Thursday, March 3, 2022 at 9:25:22 AM UTC-7, kinsell wrote:
>>> https://sustainableskies.org/the-aos-h2-hydrogen-powered-motor-glider/
>> I'm not sure which is worse, the 143 pounds of lithium ion batteries
>> in front of you waiting to burn, or the two 4300 psi hydrogen bombs
>> behind you waiting to explode.
>> Bob Faris
>
> After adding the batteries, the inverter, hydrogen tanks, fuel cells,
> motor, propeller, and mast, I wonder how much useful load capacity is
> left for a pilot?
>
> It's not just Airbus pushing hydrogen, Toyota actually has a car in
> production:
>
> https://www.youtube.com/watch?v=lgIj2XTSBuQ
>
> It's hard to imagine infrastructure being developed to support these
> things.
>
> -Dave

What price virtue signaling?

https://www.canarymedia.com/articles/hydrogen/why-is-california-wasting-millions-on-hydrogen-fuel-pumps

On Thu, 3 Mar 2022 09:58:13 -0800, Eric Greenwell
<owner@thegreenwells.netto> wrote:

>It seems hydrogen

How The Martin B-57B Made Hydrogen-Powered Flights In The 1950s

PUBLISHED MAR 05, 2022

In February 1957, a Martin B-57B of the NACA flew on hydrogen for 20
minutes over Lake Erie.
....
....
At its Lewis, Flight Propulsion Laboratory engineers found that the
absolute ceiling for a plane could be as high as 90,000 ft when using
hydrogen as fuel.
....
....
.... Back in the 1950s, the United States and the Soviet Union were
already locked in a Cold War. The Americans regularly used Lockheed
U-2 spy planes for missions but wanted an aircraft that could fly at
altitudes beyond the range of Soviet ground-to-air missiles. Using
standard JP-4 jet fuel, the U-2 had an absolute ceiling of around
60,000 ft to 65,600 ft.

<https://simpleflying.com/martin-b-57b-hydrogen-powered-flights-1950s/>