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      11-30-2020, 10:35 AM   #206
MKSixer
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Quote:
Originally Posted by ///M Power-Belgium View Post
"Negative" my friend .

1- First pic shows the remains of the fuel tank (bag-cell) "See my red circle"
The fuel tank is completely gone and melted, all the fuel is burned in the flames or it was the cause of the huge explosion ..
That's why the fire extinguishers "initially" made the fire and flames even "WORSE"
By the compressed air in the fire extinguishers , they sprayed more air into the fire !
Why was that ?
*They sprayed too far away from the flames* because they were afraid of the fire .
This was a "HUGE MISTAKE" ! They could have "KILLED" Romain !
But understandable at that moment in front of hell's fire .


2- The telemetry showed the impact was 50+ G !
Romain's speed was 221 km/h during the puncturing of the barrier.
The HALO and cockpit (monocoque survival cell) "SEEM" to be intact .
But both are cracked ..
I thought as much myself, but here are the maths...

The initial plume/fireball seemed about 10 meter tall?

Gasoline vapour density is about 3.9 kg/m3.

Combining these two with the experimental approximate scaling law, we get:

Z = 12.73 m * (V / 1 m3)^ (1/3)

=>

V = 1 m * (Z / 12.73 m)^3 ~ 0.5 m3 ~ 1.95 kg fuel ~ 2 kg

The math seems to add about up. With 110 kg, the plume due to the initial fireball would have been about four times larger in height.

We will never know until the investigation is done, my friend. I'm just glad that Romain "The Phoenix" Grojean is safe.

Cheers-mk
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