[AT] OT Gripen E

[Dean Vinson]

Ralph, yes, that was the sound of the pilot breathing--and straining against the high "G-forces" induced by sharp turns and sudden steep climbs.   Some of the exertion is just the physical effort needed to control the airplane while the high-G turn is making his arms and legs feel really heavy.   But I think most of it is the pilot deliberately flexing and straining the muscles in his legs and abdomen to push blood back up towards his brain, because the high-G maneuvers tend to push everything--including blood flow--down.   

Pilots of high-performance aircraft wear pressurized flight suits and practice that deliberate muscle straining to maintain the flow of oxygenated blood to their brains.   Various YouTube videos about "g-induced loss of consciousness" show how rapidly it can occur.  Blacking out isn't physically harmful in itself, but it's not hard to imagine why it would be a bad thing to happen while flying a plane like that.

Meanwhile, I'm going to use my Super M today to spread some manure on the hayfield.  I don't have a G-suit so I'll be careful not to turn too sharp, too fast.

Dean Vinson
Saint Paris, Ohio


-----Original Message-----
From: at-bounces at lists.antique-tractor.com [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Ralph Goff
Sent: Friday, December 1, 2017 10:22 PM
To: at at lists.antique-tractor.com
Subject: Re: [AT] OT Gripen E

On 12/1/2017 7:38 AM, Mattias Kessén wrote:
> The new Gripen E flying over my old hometown Linköping. They and all 
> other swedish fighter jets are developed and built there so I'm used 
> to hear the thunder. Where I live now I mostly hear the old version 
> passing att maximum speed when someone (mostly russians) gets to close to the border.
>
> https://youtu.be/jDre5G6eGWM
> Med vänlig hälsning
>
> Mattias Kessén
That is some amazing video Mattias. I would not want to fly that close to the ground. Was that the sound of the pilot breathing? Sounds like it j was quite a workout for him.

Ralph in Sask.