Comments by "Fred Bloggs" (@fredbloggs5902) on "SpaceX: BUSTED!! (Part 1)" video.
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@shazmosushi - if the price for a previously used launch of 22,800 kg to LEO is $50m, how can they possibly charge the same for only 15,600 kg?
Just to reiterate, the $50 million is the discount to the customer for a previously used booster to be a throwaway and getting 22,800 kg to LEO
It’s NOT for a to-be-reused booster which only gets 15,600kg to LEO.
If I’m wrong, please provide a reputable source for your claim that getting 15,600 kg to LEO costs $50 million ($3,205 per kg.).
(Bearing in mind that SpaceX‘s own website quotes $62 for a brand new rocket to take 22,800kg to LEO = $2,719 per kg.).
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@bluesrockfan36
$1,500,000,000 / 27,000 = $55,555 per kg.
($1.5b / 27 Tons = $56k per kg).
There are 1,000 millions in a billion and 1,000 kg in a metric ton.
If we’re really generous and write off the r&d and take the additional cost of a launch in a year then we get $252,000,000 per launch of 27,500 kg.
This is equal to $9,164 per kg.
A new F9 to LEO throwaway price is $62,000,000 for 22,800kg which is $2,719 per kg.
That’s around 1/3 of the price per kg of the shuttle.
A used F9 to LEO throwaway price is $50,000,000 for 22,800kg which is $2,193 per kg.
That’s around 1/4 of the price per kg of the shuttle.
Just for comparison, the claimed MARGINAL COST of a used F9 to LEO of 15,600 kg (thereby allowing further reuse) is $15,000,000 which is $962 per kg. This is around 1/10 the cost of the shuttle but note this is the internal cost to SpaceX ie. the cost of a StarLink launch.
With 60 Starlink satellites per launch that’s a cost of $250,000 per sat of which 12,000 are needed so a total launch cost of around $3 billion which fits nicely with the estimated total cost of Starlink at $10 billion allowing each satellite to cost around $500,000 to build.
Note that a total of 200 launches are needed which at 50 per year will only take 4 years!
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