Author Topic: ESA - Vega Updates  (Read 164609 times)

Offline SciNews

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Re: ESA - Vega Updates
« Reply #240 on: 08/10/2018 10:08 AM »
But can it reach Mach 10 in 5 seconds after launch? The Sprint ABM had 3.0 MN of thrust and only massed 3.4 tonnes, a liftoff TWR of 88.
The article was about satellite-launch market, not weapons.

Offline envy887

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Re: ESA - Vega Updates
« Reply #241 on: 08/10/2018 11:43 AM »
But can it reach Mach 10 in 5 seconds after launch? The Sprint ABM had 3.0 MN of thrust and only massed 3.4 tonnes, a liftoff TWR of 88.
The article was about satellite-launch market, not weapons.
It's an inaccurate clickbait headline. The fastest rocket in the world is the 3-stage Delta IV that is launching PSP tomorrow morning.

Offline edkyle99

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Re: ESA - Vega Updates
« Reply #242 on: 08/10/2018 02:38 PM »
Yes, except that by the time Delta 4H/Star 48 is going that fast, it is no longer "in the world", is it?!

In terms of flat out "zero to 60" acceleration for an orbital launch vehicle, what about Japan's SS-520?  18 tonnes of liftoff thrust for a 2.6 tonne launch vehicle, but no future plans to launch perhaps.

I think a valid comparison of this type might be time to orbital velocity - "zero to orbit".

 - Ed Kyle
« Last Edit: 08/10/2018 02:43 PM by edkyle99 »

Offline SciNews

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Re: ESA - Vega Updates
« Reply #243 on: 08/10/2018 03:00 PM »
It's an inaccurate clickbait headline. The fastest rocket in the world is the 3-stage Delta IV that is launching PSP tomorrow morning.
Just move past the title, it's an interesting article.
The Solar Probe will be the fastest, not the rocket launching it
In terms of flat out "zero to 60" acceleration for an orbital launch vehicle, what about Japan's SS-520?  18 tonnes of liftoff thrust for a 2.6 tonne launch vehicle, but no future plans to launch perhaps.
Unfortunately, the SS-520 launch didn't have visual indication of altitude
For an accurate comparison, it must be taken into account that at the same altitude the distance traveled may differ.


Offline SciNews

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Re: ESA - Vega Updates
« Reply #245 on: 09/18/2018 12:34 PM »
ESA: Preparing for Vega-C

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At the end of 2019 Vega-C will be launched from Europe’s Spaceport in French Guiana increasing performance from Vega’s current 1.5 t to about 2.2 t in its reference 700 km polar orbit, with no increase in launch costs.
Vega-C's first stage is based on the P120, the largest single segment carbon fibre solid-propellant rocket motor ever built. It was successfully tested in July 2018. Its development relies on new technologies derived from Vega’s current first stage P80 motor. Two or four P120C motors will also be used for the liftoff boosters on Ariane 6.
Vega-C’s 3.3 m diameter fairing will accommodate larger payloads such as Earth observation satellites of more than two tonnes, and ESA’s Space Rider reentry vehicle.
The Vega launch pad and mobile gantry are being modified to accommodate Vega-C leading into a period when launch facilities will accommodate both vehicles.

Offline gosnold

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Re: ESA - Vega Updates
« Reply #246 on: 10/17/2018 07:32 PM »
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Stéphane Israël @arianespaceceo

Launch contract signed with #OHBItalia for the National Advanced Optical System (NOAS), an earth observation mission at the benefice of  #Luxembourg’s 🇱🇺 Directorate of Defence. Liftoff in 2022 on a #Vega or #VegaC. #MissiontoSuccess 🚀

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