[AR] Re: DARPA responsive launch challenge

  • From: Henry Vanderbilt <hvanderbilt@xxxxxxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Mon, 23 Apr 2018 20:35:01 -0700

On 4/23/2018 5:47 PM, Paul Mueller wrote:

It does seem like the solicitation is written for the one company (that I'm aware of) that has a road-trailerable orbital rocket concept, Vector. Are there others? Would air-launched rockets such as Virgin Orbit's fit DARPA's requirements?


If it's written for one company, why have three substantial prizes in the final round? Honestly, I've lost track of all the smallsat-launch startups, but I'm pretty sure this contest is aimed at as many of them as possible. Rocket Lab? The revived Firefly? Who else is out there...

I'd tend to assume that any company not developing its vehicle right alongside its sole launch site already must be to some extent mobile. At that point the development vector delta to meet the DARPA contest rules may not be that large.

As for air launch outfits also being eligible, I'd think so, at least by the spirit of the thing. (The letter of the rules of course being up to DARPA.)

But given that the obvious purpose of this prize is (well, seems to me) DARPA trying to influence smallsat launch companies in general to put more emphasis on the flexibly-based launch aspect of their operations, I'd be amazed if DARPA sets things up to exclude the air-launch outfits. There's Launcher One, Generation Orbit, Stratolaunch, and..?

An air-launch suitable licensed spaceport would of course need an adequate runway. The carrier aircraft can then fly the launcher there. Then if I'm reading the contest outline right, the company or companies would need to be set up to do payload integration, propellant loading and range support as a road show at any such site.

Again, the business decision to take part would depend on how far that is from what a given company plans to do anyway, I would think.

Henry




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