Was any first stage recovery system tested on SpaceX Falcon 9 flight seven?

November 9, 2017 – 08:55 am

Immediately after stage separationNow I am sure they use the thrusters to make sure they DO not repeat the stage collision from flight 3 of the Falcon 1 launch, but these firings were already after the stage was pretty clear of the second stage.

I am happy to see them using the thrusters, since it means they are doing 'something' with it, even if full recovery testing is not an option due to lack of reserve propellant. (SpaceX said they would not test recovery per se, on flight 2 and 3 of the F9 1.1, since they had booked full reserves to the customers).

I am curious if we know what they were testing. I would be happy to see that they are just exercising the thrusters to determine limits of control at different altitude densities. Every bit of data helps, and the ability to test on each launch means they learn faster.

Lousy screen grabs from said video:

Third firing from first stageImmediately after stage separation, (The right side of the split screen showed the M1-D Vac being exposed to space as the stages separated.) Oddly, looking at just the picture, the second stage is actually the object at the bottom in this view.

A second or two later, you can see the stages separate from each other.

Then we have a visible thruster firing from the first stage.

And another firing off to the right.

And another this time, sort of down and to the left.

This one was hard to capture, but it pulsed its firing 3-4 times. The same direction as the previous one. Down and to the left.

The CASSIOPE mission also involved the first “boost back” test of the first stage, while sources note there was also a boost back test during the SES-8 mission, or at least the restart of the first stage post staging.


Source: space.stackexchange.com

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