Category Archives: Space

Space Force HQ

Greg Abbott wants it in Houston.

Of course he does. Let’s put the HQ of one of the services in a place that gets slammed by hurricanes and floods on a semi-regular basis.

Vandenberg would be a good location, other than earthquakes, but Colorado Springs, the current home of Space Command, is probably best, both in terms of centrality and low risk of natural disasters (other than fire). It could even share the service academy with the Air Force.

The 737 Max 8 Crashes

They may have been caused by “safety” “features.”

Gee, someone should write a book about that sort of thing.

Oh, wait.

[Update a while later]

[Mid-morning update]

[Afternoon update]

An interesting perspective.

Aircraft Safety Comparisons

[Update a while later]

The Real Pucker Factor

For Dragon, it will be early tomorrow morning, when it enters and is recovered.

[Friday-morning update]

Mission success.

[Noon update]

What SpaceX’s success means for America.

Roscosmos

is acting left behind.

It’s not really acting. They have been left behind.

But, while I like Sandy, this kind of thing continues to drive me crazy.

EXOS Aerospace

It looks like they had a successful suborbital test of SARGE today at Spaceport America (after the earlier successful launch of Crew Dragon early this morning).

[Tuesday noon update]

Russ Blink just posted an explanation of the wobble at Arocket:

The wind picked up as we approached launch and the torque due to the fins at liftoff was getting pretty high, that caused the initial pitch angle and the control PID is pretty close to critically damped, which of course needs to be addressed, however it settled down nicely until we hit a high wind shear which it damped out slowly again after passing through. Still she was heavily influenced by the wind which we are addressing.

The fins on this flight were actually hurting us because of weather-cocking. We intend to remove or reduce them in the future when we have good aero data or modeling to tune the control part of our gnc for that condition.

For those curious in comments…

[Bumped]