Another pre-burner test this morning & possibly another but unclear on the second one. No static fire today & testing complete.
 
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Starhopper for moment is equip with Cameras and loudspeakers
why loudspeakers ?
There two logical conclusion
one to Warn everyone nearby of engine Testing or liftoff
Second noise suppression with active noise control

EW5TdBgXkAEdq7F

To Broadcast a kick-a** sound track? Every great event needs a good theme song.. to paraphrase a movie :)

Randy
 
SpaceX conducted another Static fire test
There is some news by Musk on Superheavy
Modification from 37 engines down to 31 raptors, the Fins disappear for a similar configuration of landing legs on Starship
according Musk it's biggest problem is Tankdome & Thrust section of for engines

and Testing the Vacuum Raptors beginn next week

 
From NSF:

Meanwhile, at SpaceX Boca Chica - following two successful Static Fire tests, Raptor SN18 was removed from Starship SN4 and enjoyed a forklift ride!

Testing will continue on Starship before the Raptor is reinstalled for the Hop campaign. SN5 and SN6 wait in the wings to follow up on what will hopefully be a successful SN4 test series.

Video and Photos from Mary (@BocaChicaGal) and "Nomadd" for NSF. Edited by Jack Beyer (@thejackbeyer).


 
Source: https://www.spacex.com/news/2020/04/28/starlink-update
The first unit is flying on the next launch, and by flight 9 in June all future Starlink satellites will have sun visors.
As previously noted, the first VisorSat prototype will launch in May and we will have these black, specular visors on all satellites by June.

Good news for all astronomers concerned with the Starlink being too bright in the night sky. Don't know why the first Starlink satellites did not come with sun visors in the first place.
 
Source: https://www.spacex.com/news/2020/04/28/starlink-update
The first unit is flying on the next launch, and by flight 9 in June all future Starlink satellites will have sun visors.
As previously noted, the first VisorSat prototype will launch in May and we will have these black, specular visors on all satellites by June.

Good news for all astronomers concerned with the Starlink being too bright in the night sky. Don't know why the first Starlink satellites did not come with sun visors in the first place.

Probably for the same reason the F-16 wasn't sporting AIM-120 and LANTIRN right out of the box.
 
seems they testing each engine single under SN4

progress update on Boca Chica site
 

 
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link to simulator

progress on site
new assembly hangar is build
and Teststand get a umbilical(?) tower
 

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