Except when it kills people (though this accident didn't).
Except when it kills people (though this accident didn't).
No disrespect intended, but this is a disruption for the ISS, a loss (hopefully insured) for Planetary Resources, a real setback for Orbital... there's no point in sugar coating anything, it sucks. There's just no point in dwelling on it, either. RCA and move forward.
The unmanned missions have a higher failure rate, IIRC ~10%, but that number probably includes prototype and old models.
So a 2/80 failures is not so bad. It sucks when it explodes, but going to space is difficult.
For example, Soviet/Russian manned flight, "Soyuz", had 131 flights (123 Soyuz + 2 Voskhod + 6 Vostok) [1][2] and 2 accidents, resulted in death of 4 astronauts (1 + 3).[3]
However, both of these accidents occurred before 1972, and both were highly experimental flights. Komarov's was the VERY FIRST flight of Soyuz, and before Soyuz 11 accident, they were descending without space suits, as the space inside the cabin was so tiny.
So you can also say that there were 2 accidents in the first 10 Soyuz flights - they were still finalizing the technology - and no accidents in the remaining 113.
In addition, both of these accidents occurred during the landing, so there was NO accidents during manned-space take-off in Russian/Soviet flights.
[1] http://en.wikipedia.org/wiki/List_of_Russian_manned_space_mi... [2] http://en.wikipedia.org/wiki/List_of_Soviet_manned_space_mis...
[3] http://en.wikipedia.org/wiki/List_of_spaceflight-related_acc...
Soyuz T-10-1 burned on the launch pad, although the launch escape system saved the lives of the cosmonauts on board.
Still, it wouldn't be a "failure" under GP's original definition: "failure" as in "it explodes and everybody dies" :)
And in Soyuz they also had other pretty close calls. Diving into athmosphere hatch-forward because engine module didn't separate in Shatalov-Volynov-Eliseev-Khrunov group flight... Near premature separation of said engine module in the Intercosmos flight with Afghani cosmonaut... Several ballistic landings - with accelerations up to about 20 g's...
Still nobody died. Perhaps in no small part because of overbuilding the ship and also changing the ship design along its long history, learning on mistakes. Soyuz spacecraft is the real workhorse.
https://www.youtube.com/watch?v=AVvgpKt5uCA
Basically how cosomaunts train in Star City to how the rocket is built, take off and all the way till it is about to dock with the ISS, including how launch escape works etc.
The reliability and resilience of the system is just a marvel of engineering.
It remains to be seen if they will be able to complete the rest of their contract. The cause of the accident will need to be investigated, changes to future vehicles may be necessary, and right now it appears as though they damaged their launch pad severely.
From wikipedia:
> "COTS is related but separate from the Commercial Resupply Services (CRS) program.[3] COTS relates to the development of the vehicles, CRS to the actual deliveries. COTS involves a number of Space Act Agreements, with NASA providing milestone-based payments. COTS does not involve binding contracts. CRS on the other hand does involve legally binding contracts, which means the suppliers would be liable if they failed to perform. Commercial Crew Development (CCDev) is a related program, aimed specifically at developing crew rotation services. It is similar to COTS-D. All three programs are managed by NASA's Commercial Crew and Cargo Program Office (C3PO)."
Personally, I am worried about Orbital's ability to complete the remaining flights for CRS. This is a very unfortunate setback for them.
[1] http://www.nasa.gov/centers/kennedy/about/information/shuttl... [2] http://sciencepolicy.colorado.edu/admin/publication_files/re...