Photo credit: ESA-J.Huart
An automobile-sized antecedent space qualification is prepared for an around-the-world exam moody to denote technologies to fly on a destiny orbital space plane, reusable rocket stages, and interplanetary representation lapse probes.
The $170 million Intermediate Experimental Vehicle is set for launch aboard a Vega rocket from a Guiana Space Center, a European-run space bottom on a northern seashore of South America.
Its moody will final 102 mins from takeoff to splashdown. The lifting physique upholder will strech a limit altitude of about 260 miles on an arcing suborbital arena before slamming behind into Earth’s atmosphere during 7.5 kilometers per second, or about 16,800 mph.
The IXV will use dual electrically-actuated flaps and rocket thrusters control a descent. GPS navigation will assistance beam a malcontent toward a parachute-assisted splashdown in a equatorial Pacific Ocean scarcely 3,000 miles west of Colombia.
The timeline next highlights vital events during a mission.
Date source: ESA/Arianespace
The Vega rocket’s initial theatre P80 plain rocket engine ignites and powers a 98-foot-tall upholder off a launch pad 0.3 seconds later. The P80 initial theatre engine generates a limit of 683,000 pounds of thrust.
T+0:00:31: Mach 1
The Vega rocket surpasses a speed of sound as it soars on an eastward arena from French Guiana.
T+0:00:53: Maximum Dynamic Pressure
Flying during an altitude of some-more than 40,000 feet, a rocket passes by a proviso of limit aerodynamic pressure.
T+0:01:52: First Stage Separation
Having consumed a 194,000 pounds of plain propellant, a 9.8-foot-diameter P80 initial theatre engine is jettisoned during an altitude of about 33 miles. One second later, Vega’s Zefiro 23 second theatre engine fires to start a 102-second burn.
T+0:03:35: Second Stage Separation
The Zefiro 23 engine browns out and jettisons.
T+0:03:50: Third Stage Ignition
The Vega rocket’s Zefiro 9 engine ignites for a third theatre burn.
T+0:04:02: Fairing Jettison
The Vega’s 8.5-foot-diameter cargo fairing is expelled as a rocket ascends into space.
T+0:06:37: Third Stage Separation
The Zefiro 9 third theatre shuts down and separates.
T+0:08:00: AVUM Ignition
The Vega rocket’s Attitude and Vernier Module, or fourth stage, ignites for a initial time. The AVUM browns hydrazine fuel with an RD-869 engine supposing by Yuzhnoye of Ukraine.
T+0:13:49: AVUM Shutdown
The Vega’s AVUM fourth theatre is incited off after a 5-minute, 49-second bake to place a IXV on a correct suborbital arena before separation. Two some-more AVUM maneuvers start after IXV subdivision to de-orbit a stage.
T+0:17:49: IXV Separation
The IXV re-entry malcontent separates from a Vega rocket’s AVUM fourth stage.
T+0:20:34: Thrusters Primed
The IXV’s 4 400 Newton (90-pound-thrust) thrusters are primed to scheme a upholder into a correct course for re-entry. The miracle occurs while a IXV passes over Africa in operation of belligerent stations in Libreville, Gabon, and Malindi, Kenya.
T+0:31:00: Maximum Altitude
The IXV reaches a limit altitude of about 412 kilometers (256 miles).
The IXV re-enters a atmosphere during an altitude of 120 kilometers (74 miles) and a quickness of 7.5 kilometers per second (16,777 mph) while 7,300 kilometers (4,536 miles) uprange from a alighting site. The qualification uses 4 thrusters and dual flaps mounted on a back of a IXV to govern a array of S-turn banking maneuvers.
T+1:22:00: AOS of IXV
A tracking receiver on a Nos Aries liberation boat acquires a vigilance from IXV after a re-entry communications blackout. The IXV starts downlinking information available by on-board sensors.
T+1:29:00: Main Parachute Deployment
The IXV’s categorical parachute deploys to delayed a spacecraft’s skirmish to a Pacific Ocean to about 6 meters per second (13 mph).
The IXV splashes down in a Pacific Ocean during approximately 3 degrees north latitude, 123 degrees west longitude. The Nos Aries liberation boat staffed by ESA and Thales Alenia Space crew will be on standby scarcely 30 kilometers (18 miles) divided to pierce in and collect a spaceship.
Follow Stephen Clark on Twitter: @StephenClark1.
Article source: http://spaceflightnow.com/2015/02/11/flight-timeline-for-esas-re-entry-demonstrator/