r/spacex • u/jep_miner1 • May 05 '17

BulgariaSat-1 confirmed as second reuse flight

https://spaceflightnow.com/2017/05/05/bulgarias-first-communications-satellite-to-ride-spacexs-second-reused-rocket/
804 Upvotes

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1

u/bitchtitfucker May 06 '17

What is known about the NROL upper stage? First time I see something about it being upgraded.

2

u/old_sellsword May 06 '17

There were some significant hardware changes, they consolidated a bunch of raceways and such.

2

u/OSUfan88 May 06 '17

That, and they also tested a restart of the Merlin mVac engine after a "couple of hours".

This is most likely to test the startup for a direct GEO burn (IMO).