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Old 05-03-2020, 10:29 AM
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blackshire blackshire is offline
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Join Date: Jan 2009
Location: Fairbanks, Alaska
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Default RS1 SLV, and new GA launch site!

Hello All,

I came across a new small launch vehicle provider--ABL Space Systems (see: https://www.ablspacesystems.com/ ), whose RS1 two-stage, kerolox-powered rocket is to fly for the first time in the fourth quarter of 2020. Here is their Payload User's Guide (see: https://s3-us-west-2.amazonaws.com/...rs_guide_v1.pdf ), which contains many dimensioned drawings of the RS1 vehicle and its components. Also:

The 88' tall, 72" diameter, mobile TEL (Transporter-Erector-Launcher)-launched RS1 is an interesting combination of old and new concepts. It is all-metal (no composites) and uses three 42,000 lbf (126,000 lbf in total) turbopump, gas generator cycle E1 first stage rocket engines arranged in a triangular layout, and a single (with a vacuum-optimized nozzle), re-startable, 13,000 lbf turbopump gas generator cycle E2 second stage engine. The RS1 can inject 1,200 kg payloads into LEO, 875 kg into 500 km heliosynchronous orbit, 400 kg into GTO, and slightly heavier (than to GTO) payloads to the Moon or escape velocity, and:

The vehicle uses a proprietary isogrid integral tankage stiffening pattern. It also--likely uniquely, at present--has provision for the late addition of CubeSat "hitch-hiker" spacecraft *after* payload fairing encapsulation of the main payload(s), and ^without^ having to re-open the payload fairing in order to add them. Below the main payload/payloads section is a CubeSat deck, which is isolated from the rest of the payload fairing volume by a circular environmental seal. The CubeSats are inserted into--and are ejected from, once in the desired orbit--radially-arranged CubeSat dispensers (ones for 3U and 6U CubeSats are standard), whose outer openings are covered by aerodynamically-faired doors. In addition:

ABL Space Systems intends to use--in addition to the usual U.S. launch sites--a new one. As well as Cape Canaveral, Wallops Island, Vandenberg Air Force Base, and Kodiak Island, they also plan to launch from Camden County, Georgia (near the Florida/Georgia border, located at 30° 55' 39" North Latitude and 81° 30' 53" West Longitude [see: https://www.google.com/search?sxsrf...&sclient=psy-ab ], from which orbits with inclinations from 31° to 58° can be reached). The Camden County site was once considered as the Apollo-Saturn launch site, but MILA--the Merritt Island Launch Area, just north of Cape Canaveral--was selected instead. However:

Some rocket testing was conducted at the Georgia site during the Apollo era. To date (in 2017), a single suborbital test vehicle (a Vector Space Systems Vector-R rocket carrying two payloads, see: https://cdn.satellitetoday.com/wp-c.../untitled-1.png ) has been launched from Spaceport Camden https://en.wikipedia.org/wiki/Spaceport_Camden , as it is called (its website is: https://spaceportcamden.us/ ).

I hope this information will be useful.
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