The RS-27 (Rocket System-27) was a liquid-propellant rocket engine developed in 1974 by Rocketdyne to replace the aging MB-3 in the Delta. Incorporating components of the venerable MB-3 and the H-1 designs, the RS-27 was a modernized version of …

RS-27 液体火箭发动机是美国“ 德尔塔2000系列 ”运载火箭的第一级发动机。 由美国 洛克达因公司 于1971年～1973 年研制。 推进剂为液氧和煤油。 采用燃气发生器循环，泵压式供应系统。 发动机由一台主发动机和两台LR101-NA-11游动发动机组成。

The ALCO RS-27 (specification DL-640) was a diesel-electric locomotive built by ALCO between December 1959 and October 1962. Only 27 examples were manufactured. [1] With ALCO's introduction of the Century Series line in 1963, the C-424 (specification DL-640A) replaced the RS-27 in the builder's catalog.

RS-27是一种修改后的 Rocketdyne H-1 ，用于为 土星I 和 土星IB 的第一阶段提供动力，并取代了Delta Launcher先前版本上使用的MB-3发动机。 1970年代初期，随着阿波罗计划的结束，NASA在1970年代初提供了大量剩余的H-1发动机。 除了主要发动机外，RS-27还包括两台 Vernier 发动机，可在飞行过程中提供车辆控制。 RS-27随后被发展为 RS-27A 和 RS-56 。 RS-27是Rocketdyne于1974年开发的液体螺旋桨火箭发动机，以取代三角洲的老化MB-3 。 RS-27结 …

它虽然是同循环方式的真空发动机中性能的佼佼者，但由于芯一级使用的RS-27 (A)性能较差,再加上二级相对整箭来讲"过小”，导致Delta 2的运力并不算高。

Specific impulse sea level: 255 s. Burn time: 274 s. Height: 3.78 m (12.40 ft). Diameter: 1.07 m (3.51 ft). The RS - 27A powerplant comprises an RS2701B main engine, and twin LR101 - NA - 11 verniers. Introduced in 1990 on the McDonnell Douglas' Delta 7000 series launcher it replaced the RS-27 as the main system for that launcher.

Sold to UP 677 & 678 > 678 to Erie Mining as a parts source.

Dec 27, 2024 · The RS27 was a late model of the Road Switcher (RS) series that produced more than 2,000 horsepower. However, the model was unsuccessful, a common theme of Alco production during this time. The RS27 looked very much like Alco's later models and was the first to receive the builder's new styling.

Alco's RS27 (specification DL640) was designed to handle high-speed freights; it was not intended to be a general purpose locomotive. As such,it was powered by the 16-cylinder version of the 251B engine, rated at 2400 horsepower.

Oct 24, 2018 · RS-27发动机是洛克达因公司于1974年在土星IB火箭一子级主动力H-1发动机基础上改进研发而来，采用液氧-煤油推进剂和燃气发生器循环方式，用以替代德尔塔系列的MB-3发动机，海平面推力为971kN，海平面比冲为264s，RS-27发动机及其改进型RS-27A发动机广泛用于德尔 …