Hydra 70 rockets are known mainly by either their warhead type or by the rocket motor designation, Mk 66 in US military service. In the U.S. Army, Hydra 70 rockets are fired from the AH-64 Apache and AH-64D Apache Longbow helicopter variants using M261 19-tube rocket launchers, and the OH-58D Kiowa Warrior using seven-tube M260 rocket launchers.

Objective: make a good rocket motor even better. Requirements. 300 lbf aerodynamic drag force and while crushing undetectably under the fuze-target impact. Technologies exist that can meet the requirements of both guided and unguided rocket motors. Questions.

Sep 18, 2020 · The Hydra-70 rocket system is a family of 2.75in unguided air-to-surface rockets derived from the Mk 4/Mk 40 folding-fin aerial rocket (FFAR) developed in the 1940s. The rockets are used for anti-material, anti-personnel, air-to-ground suppression and illumination.

在M260和M261上的九頭蛇70航空火箭彈彈族均採用Mk 66系列火箭發動機，以取代過去的Mk 40系列火箭發動機。 Mk 66具有降低系統的重量，並且提供遠程引信的設置界面的優點。

The MK 66 Mod 1 and Mod 2 Rocket Motors are intended to propel a wide assortment of warheads at ranges exceeding 6500 meters. They may be fired from either Army rotary-wing aircraft or Navy fixed-wing and rotary-wing aircraft.

1 day ago · 經陸軍向美增購射程300公里的M142海馬斯（HIMARS）高機動性多管火箭系統，總數已達全兵力所需的29套，陸軍在重層火力打擊區隔上，「雷昇專案」的MK-66雷霆2000增程型火箭彈，射程設定在70公里到100公里之間，火箭彈內的彈種區分為鋼珠高爆彈與子母彈，鋼珠高爆彈是大面積的破壞與殺傷力，但子母彈則須在導控裝置對海上目標進行精確打擊。 打100km主力！ 30套雷昇增程將聯乘海馬斯火箭系統. 據指出，雷昇增程火箭彈研發完成達標後，陸軍重層火 …

The rocket motor used for demonstration tests was the MK 66, which burns for approximately one second. It contains a double-base, non-aluminized propellant. The visible signature is primarily smokeless, consisting mainly of a bright orange flame resulting from afterburning of …

The MK66 Mod 1 motor is a nozzle modification of the Mod 0 to increase the spin rate from 4 - 5.5 rps to 9 - 10 rps (at launch) for increased accuracy and provide interface with existing and improved launchers. A detent groove has been added forward of the wrap-around fins.

The rocket system contains three components: the MK66 MOD 4 rocket motor, one of the nine warheads, and the associated point-detonating, or remote-set fuze(s). When these components are combined, they provide a tailor-made solution to the warfighter’s situational requirements.

Hydra 70 is the name associated with the new family of 2.75 inch (70mm) rockets. Basically, Hydra 70 refers to the MK66 rocket motor with any warhead / fuze combination. The MK66 rocket motor was designed to provide a common 2.75 inch …