[AR] Re: SpaceX pad post launch

From: roxanna Mason <rocketmaster.ken@xxxxxxxxx>
To: arocket@xxxxxxxxxxxxx
Date: Fri, 21 Apr 2023 02:25:31 -0700

Being throtlable they may have made up for the lost thrust by throttling up
the remaining good engines though I'm not familiar with the throttle
ability above 100% if any.

Ken

On Thu, Apr 20, 2023 at 10:24 PM Troy Prideaux <troy@xxxxxxxxxxxxxxxxxxxxx>
wrote:

What also didn’t help was the take-off acceleration. Looked pretty
marginal on 1st glance with the 3 lost engines, although that may’ve been
more illusionary with the shear size of the rocket and everything else
there.

Troy

*From:* arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> *On
Behalf Of *roxanna Mason
*Sent:* Friday, April 21, 2023 3:10 PM
*To:* arocket@xxxxxxxxxxxxx
*Subject:* [AR] SpaceX pad post launch

Here's a pic of the SpeceX launch pad after today's launch, sorry for the
poor quality but it's enough to see how destructive the rocket exhausts
were on a flat concrete pad regardless of how good the quality was.
Remember when a supersonic rocket plume hits a flat plate it stagnates at a
good percentage of the chamber pressure and temperature,i.e. 4000 psi at
6000F, take it around 50 to 90% of those figures.

References:
- [AR] SpaceX pad post launch
  - From: roxanna Mason
- [AR] Re: SpaceX pad post launch
  - From: Troy Prideaux

[AR] Re: SpaceX pad post launch

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