Re: Why a Delta-4H for DSP?
Thomas Womack wrote:
The DSP-23 satellite, from all the sources I've read, weighs about 2.5
tonnes. Why did it need a Delta-4 Heavy to launch it to GEO, when
something like the Skynet 5 satellite, of twice the weight, was
happily launched into GEO on an Ariane 5 with space for a commercial
payload to go along?
It was a direct insertion of a payload without an apogee kick stage.
Plus, they needed to demonstrate that capability.
That's why they built it, remember?
Can you imagine the Air Force asking the ESA for launch capability?
The AF is always interested in new and innovative rockets. Got any?
.
Relevant Pages
- Re: Why a Delta-4H for DSP?
... something like the Skynet 5 satellite, of twice the weight, was ... happily launched into GEO on an Ariane 5 with space for a commercial ... After the first little anomaly in the first flight, they didn't want to commit a more expensive bird to this second launch, and the DSP was the perfect fit. ... deal more than 2.5 tonnes: ...
(sci.space.policy) - Re: New heavy lifter?
... >> comsats that can be refueled during their lifetime than to launch them ... > Is this such a consideration for GEO based sats? ... Quite a bit of the overall mass of a comsat is fuel meant to cover its ... One solution to making "bigger" comsats is to reduce the amount of fuel ...
(sci.space.policy) - Re: Shuttle Replacement Needs to Become a National Priority!!!
... Three tons in GEO. ... > I was talking about launch to *LEO*, not GEO, though. ... > I was describing involved modules that would be deployed in LEO, ... launch cost, today, in terms of cost not price vide GWH's figures. ...
(sci.space.policy) - Re: Shuttle Replacement Needs to Become a National Priority!!!
... :> million) if the Russians paid French wages to their assembly and launch ... Three tons in GEO. ... I was talking about launch to *LEO*, not GEO, though. ... I was describing involved modules that would be deployed in LEO, ...
(sci.space.policy) - Why a Delta-4H for DSP?
... The DSP-23 satellite, from all the sources I've read, weighs about 2.5 ... Why did it need a Delta-4 Heavy to launch it to GEO, ... happily launched into GEO on an Ariane 5 with space for a commercial ...
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