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Comment by nixos

His biggest (current) problem regarding SpaceX is that satellites aren't mass-produced.

If it was, buying a spot on a Falcon or on a Delta would be simple:

TCOFalcon = cost of launch + self-insurance-markup.

TCODelta = cost of launch + self-insurance-markup.

Falcon costs $1233/lb

Delta IV costs $8694/lb.

To compare apples to apples, to launch 50,000 lbs (a full Falcon FT 50,000 lb), a Falcon would cost 61,650,000, and a Delta IV would cost 434,700,000).

A Delta IV failed once out of 33, and the Falcon 9 failed three out of 29.

Therefore, TotalCostOfLaunch = CostOfLaunch+costOfSatellite * failureRate.

For TCODelta = TCOFalcon

CostOfLaunchDelta+costOfSatellitefailureRateDelta = CostOfLaunchFalcon+costOfSatellitefailureRateFalcon.

Plugging in Numbers,

434,700,000+c * (1/33) = 61,650,000+c * 3/29

c/33-2 * c/28 = 61,650,000 - 434,700,000

c = 5,100,126,428

Any satellite worth less than five billion (!! That's an _insanely_ expensive single mission) would be cheaper to launch on a Falcon, despite its failure rate

The only problem is that you have to wait for a new satellite

parent nixos 10 years ago

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