• Thumbnail for Retrorocket
    A retrorocket (short for retrograde rocket) is a rocket engine providing thrust opposing the motion of a vehicle, thereby causing it to decelerate. They...
    8 KB (1,048 words) - 12:16, 7 August 2024
  • Thumbnail for Voskhod (spacecraft)
    spacecraft was, essentially, a Vostok spacecraft that had a backup solid fuel retrorocket added to the top of the descent module. The ejection seat was removed...
    10 KB (1,216 words) - 19:35, 7 August 2024
  • Thumbnail for Luna 8
    the objective of achieving a soft landing on the Moon; however, its retrorocket firing occurred too late, and suffered a hard impact on the lunar surface...
    4 KB (292 words) - 12:39, 28 May 2024
  • Thumbnail for Voskhod programme
    spacecraft was basically a Vostok spacecraft that had a backup, solid-fueled retrorocket added to the top of the descent module. As it was much heavier, the launch...
    6 KB (682 words) - 02:59, 12 August 2024
  • Thumbnail for Mercury-Redstone 3
    blunt heat shield forward for atmospheric re-entry. He also tested the retrorockets which would return later missions from orbit, though the capsule did...
    32 KB (3,890 words) - 21:15, 6 May 2024
  • Thumbnail for Moon landing
    Soviet, U.S., Chinese and Indian spacecraft have used braking rockets (retrorockets) to make soft landings and perform scientific operations on the lunar...
    116 KB (10,931 words) - 22:40, 18 August 2024
  • Thumbnail for Fractional Orbital Bombardment System
    the missile's retrorocket, the RD-854 engine, causing the warhead to take on a ballistic path towards its target. The warhead, retrorocket, and guidance...
    47 KB (5,830 words) - 00:33, 5 May 2024
  • For spacecraft, see Retrorocket Retro Rocket is the follow-up studio album by Pat Travers to Can Do (2013). The album was released on Cleopatra Records...
    2 KB (40 words) - 14:31, 4 October 2023
  • Thumbnail for Acceleration
    pushing them forward. Such negative accelerations are often achieved by retrorocket burning in spacecraft. Both acceleration and deceleration are treated...
    24 KB (2,864 words) - 08:46, 25 July 2024
  • Australia Retrograde analysis, a type of problem in games, especially chess Retrorocket, a rocket engine Retrospective, a look back at events that took place...
    1 KB (177 words) - 23:09, 14 May 2024
  • Thumbnail for Project Gemini
    essentially an enlarged version of the Mercury capsule. Unlike Mercury, the retrorockets, electrical power, propulsion systems, oxygen, and water were located...
    69 KB (6,789 words) - 20:58, 12 July 2024
  • Thumbnail for Water on Mars
    considerably lower the water freezing point. When Phoenix landed, the retrorockets splashed soil and melted ice onto the vehicle. Photographs showed the...
    285 KB (30,121 words) - 03:17, 19 August 2024
  • Thumbnail for Luna 7
    landing on the Moon. However, due to premature retrofire and cutoff of the retrorockets, the spacecraft impacted the lunar surface in Oceanus Procellarum. Unlike...
    5 KB (298 words) - 12:38, 28 May 2024
  • Thumbnail for Vostok 1
    backup retrorocket engine. The spacecraft carried 13 days of provisions to allow for survival and natural orbital decay in the event the retrorockets failed...
    53 KB (6,149 words) - 23:02, 16 August 2024
  • first spacecraft to achieve a soft landing on the Moon, however its retrorockets failed, and the spacecraft impacted the lunar surface. Luna 5 was launched...
    5 KB (432 words) - 12:38, 28 May 2024
  • Thumbnail for Luna 15
    Aldrin had already set foot on the Moon when Luna 15 fired its main retrorocket engine to initiate descent to the surface at 15:47 UT on 21 July 1969...
    8 KB (650 words) - 23:40, 17 July 2024
  • Thumbnail for BMD-2
    which hang beneath the pallet. As soon as the rods touch the ground a retrorocket fires, slowing the BMD to a descending speed between 6 m/s and 7 m/s...
    16 KB (1,725 words) - 18:11, 27 April 2024
  • Thumbnail for Rocket
    to soften a hard parachute landing immediately before touchdown (see retrorocket). Rockets were used to propel a line to a stricken ship so that a Breeches...
    107 KB (11,386 words) - 20:33, 31 May 2024
  • Thumbnail for Surveyor 4
    never reestablished, and the mission was unsuccessful. The solid-fuel retrorocket may have exploded near the end of its scheduled burn. Wikimedia Commons...
    4 KB (285 words) - 12:30, 28 May 2024
  • Thumbnail for Luna 9
    200 mi) from the Moon, the spacecraft was oriented for the firing of its retrorockets and its spin was stopped in preparation for landing. From this moment...
    14 KB (1,256 words) - 07:08, 11 July 2024
  • Thumbnail for Soft landing
    achieved by Parachute—often this is into water. Vertical rocket power using retrorockets, often referred to as VTVL (vertical landing referred to as VTOL, is...
    2 KB (199 words) - 15:07, 12 February 2024
  • Thumbnail for Soyuz 1
    director decided to abort the mission. After 18 orbits, Soyuz 1 fired its retrorockets and reentered the Earth's atmosphere. Despite the technical difficulties...
    16 KB (1,694 words) - 16:18, 12 June 2024
  • Thumbnail for Surveyor program
    impact trajectory, from 2.6 km/s relative to the Moon before firing retrorockets to a soft landing about 3 minutes 10 seconds later. Each craft was planned...
    10 KB (1,037 words) - 17:02, 21 August 2024
  • Thumbnail for Mercury-Atlas 6
    undecided on the course of action to take. Some controllers thought the retrorocket pack should be jettisoned after retrofire, while other controllers thought...
    43 KB (5,031 words) - 04:33, 23 August 2024
  • Thumbnail for Christopher C. Kraft Jr.
    overruled Kraft, telling him to instruct Glenn to leave the capsule's retrorocket package on during re-entry. The reasoning was that the package, which...
    59 KB (7,120 words) - 09:42, 8 May 2024
  • Thumbnail for Space Race
    re-entry. The reentry involved two more challenges: an improperly timed retrorocket firing caused the Voskhod 2 to land 386 kilometers (240 mi) off its designated...
    147 KB (18,197 words) - 18:07, 20 August 2024
  • Thumbnail for John Glenn
    deal with this problem, ground controllers decided that leaving the retrorocket pack in place might help keep the loose heat shield in place. They relayed...
    167 KB (16,483 words) - 04:59, 20 August 2024
  • Thumbnail for Mars Exploration Rover
    Descent is halted by retrorockets and lander is dropped 10 m (33 ft) to the surface in this computer generated impression....
    80 KB (9,727 words) - 19:25, 3 August 2024
  • Thumbnail for List of Apollo missions
    fueled Service Module, which would have required building a lightweight retrorocket module for deorbit. These plans were eventually scrapped, in favor of...
    52 KB (2,840 words) - 03:58, 24 July 2024
  • Thumbnail for S-IC
    retrorockets were located inside each of the four conical engine fairings. At separation of the S-IC from the flight vehicle, the eight retrorockets fired...
    13 KB (1,166 words) - 17:25, 12 July 2024