Directory of U.S. Military Rockets and Missiles Appendix 4: Undesignated Vehicles 
5Inch Rockets 

Copyright © 20032006 Andreas Parsch 
The first airlaunched 5inch rocket of the U.S. Navy was a derivative of an earlier 3.5inch FFAR, which was developed by the Navy from June 1943 as an aircraftlaunched ASW (AntiSubmarine Warfare) rocket. The 3.5inch FFAR was considered accurate enough for use against surface ships and land targets, but needed an explosive warhead for these missions. A 5inch antiaircraft shell was modified as a warhead for the 3.5inch rocket motor. The resulting rocket was the 5Inch FFAR, which entered service in December 1943. Because of the increased weight, the speed of the 5inch FFAR was only 780 km/h (485 mph).
Image: via ORDATA Website 
5Inch FFAR 
The 5inch FFAR was also used from LSM(R) (Medium Landing Ship, Rocket) type vessels as an interim 5inch beach bombardment rocket before the bettersuited spinstabilized 5Inch HVSR (HighVelocity Spinner Rocket) became available.
The 5inch FFAR suffered from insufficient speed because of its small motor. Therefore the development of a larger rocket motor with 5inch diameter was begun, and the first test firings occurred in December 1943. When fitted with the warhead of the 5inch FFAR, the rocket achieved a velocity of 1530 km/h (950 mph), making it a very powerful weapon for its time. It was officially designated as 5Inch HVAR (HighVelocity Aircraft Rocket), but often called Holy Moses. It became operational in July 1944, and was used by Army Air Force and Navy aircraft.
Photo: U.S. Navy 
Holy Moses 
During World War II, two versions of Holy Moses were built, one generalpurpose with base and nose fuzes, and one with a semiarmourpiercing warhead and a nose fuze only. Postwar developments added a shapedcharge antitank warhead, and a new general purpose type with a proximity fuze. More than one million Holy Moses HVARs were built until production ended in 1955.
In the early 1950s, the NOTS (Naval Ordnance Test Station) China Lake began to develop a new 5inch rocket to replace the Holy Moses HVAR. The new rocket used folding fins to allow efficient carriage in streamlined multitube launch pods. The rocket, known as Zuni 5inch FFAR (FoldingFin Aircraft Rocket), was designed as a modular system, and allowed the use of different types of warhead and fuze. Options included generalpurpose and shapedcharged warheads, pointdetonation, delayedaction and proximity fuzes. The latter option was intended for airtoair application, but Zuni was almost exclusively used as an airtoground weapon. For a list of current warheads, see section on the MK 71 motor below. The Zuni FFAR was approved for production in 1957 and quickly replaced the earlier HVARs. Although a number of different launchers were tested with Zuni, the rocket was eventually deployed primarily in fourtube pods of the LAU10/A series. The exact length and weight of the Zuni depends on the warhead, but typical values are 2.79 m (110 in) and 48.5 kg (107 lb), respectively.
Photo: via Ordway/Wakeford 
Zuni MK 16 
Designation Note: No formal designations are allocated to allup 5inch Zuni rockets. Instead, the rocket type is generally identified by the designation of the motor assembly, which is the main body of the rocket and includes nozzle and fins. The original production Zuni motor is designated MK 16, and the ultimate variant is the MK 16 MOD 3. The various warheads are typically usable with all available motors, and are presumably often fitted to the rockets in the field only briefly before actual use. Therefore it was apparently deemed unnecessary to assign MK/MOD designations to every specific combination of rocket and payload. In fact, the original edition of the current designation system for rockets and missiles explicitly excluded unguided lineofsight rockets from the system.
Photo: McDonnell Douglas 
Zuni MK 16 
The Zuni was widely used by U.S. Navy and Marine Corps aircraft in Vietnam. However, the rocket was also the cause of the worst accident on a modern USN aircraft carrier, when a Zuni motor was inadvertently ignited on deck of USS Forrestal in July 1967.
The current 5inch Zuni rockets use the MK 71 motor. It uses a smokeless propellant and has a completely new nozzle/fin assembly. The latter has four wraparound type fins, and therefore the MK 71 is sometimes called a WAFAR (WrapAround Fin Aerial Rocket) instead of an FFAR. The actual diameter of the MK 71 is quoted as 130 mm (5.12 in). The MK 71 MOD 0 began to replace the MK 16 in June 1971, but was soon superseded by the MK 71 MOD 1, which entered full production in September 1973. The MK 71 MOD 1 is the only Zuni motor currently in use, and is a HERO (Hazards of Electromagnetic Radiation to Ordnance) safe modification of the MOD 0. The MK 71 rockets are fired from LAU10C/A and LAU10D/A 4tube pods, the earlier launcher versions (through LAU10B/A) being incompatible with the new motor. The LAU10C/A is for shorebased use only, because it lacks the thermal protection coating of the 10D/A.
Photo: U.S. Navy 
LAU10C/B or 10D/B (exact model unknown) 
A wide variety of warheads is available for the MK 71 rocket. The following table lists the basic characteristics (length, weight) of MK 71 Zuni rockets with the warhead/fuze combinations currently used by the U.S. Navy:
Warhead  Warhead Type  Fuze  Length  Weight 
MK 24 MOD 0/1  General Purpose  MK 93 MOD 0  249.4 cm (98.18 in)  56.8 kg (125.2 lb) 
MK 188 MOD 0  240.0 cm (94.48 in)  
MK 352 MOD 2  
FMU90/B  
MK 32 MOD 0  AntiTank/AntiPersonnel  MK 93 MOD 0  277.9 cm (109.41 in)  56.3 kg (124.13 lb) 
MK 188 MOD 0  268.5 cm (105.71 in)  
MK 352 MOD 2  
FMU90/B  
MK 33 MOD 1  Illumination Flare  MK 193 MOD 0  274.6 cm (108.12 in)  56.9 kg (125.4 lb) 
MK 34 MOD 0  Smoke (White Phosphorus)  MK 93 MOD 0  247.1 cm (97.28 in)  58.2 kg (128.33 lb) 
MK 188 MOD 0  237.7 cm (93.58 in)  
MK 352 MOD 2  
FMU90/B  
MK 34 MOD 2  Smoke (Red Phosphorus)  MK 188 MOD 0  
MK 352 MOD 2  
MK 63 MOD 0  Fragmentation  MK 93 MOD 0  287.5 cm (113.19 in)  62.7 kg (138.3 lb) 
MK 352 MOD 2  278.1 cm (109.49 in)  
FMU90/B  
MK 84 MOD 4  Chaff/Countermeasures  FMU136/B  240.0 cm (94.48 in)  56.8 kg (125.2 lb) 
RR182/AL  
MK 6 MOD 7  Practice  n/a (nose plug)  237.7 cm (93.58 in)  58.2 kg (128.33 lb) 
MK 24 MOD 0  n/a (ogive)  241.9 cm (95.25 in)  58.0 kg (127.84 lb)  
WTU11/B  inert MK 93 MOD 0  268.5 cm (105.71 in)  56.3 kg (124.13 lb) 
Note: Data given by several sources show slight variations. Figures given below may therefore be inaccurate!
Data for 5inch FFAR, 5inch HVAR, Zuni MK 16, Zuni MK 71:
5" FFAR  5" HVAR  Zuni MK 16  Zuni MK 71  
Length  1.65 m (5 ft 5 in)  1.83 m (6 ft)  1.95 m (77 in) (motor only)*  1.94 m (76.3 in) (motor only)* 
Weight  36 kg (80 lb)  64 kg (140 lb)  26.7 kg (58.9 lb) (motor only)*  36.1 kg (79.5 lb) (motor only)* 
Diameter  Warhead: 12.7 cm (5 in) Motor: 8.9 cm (3.5 in)  12.7 cm (5 in)  12.7 cm (5 in)  13 cm (5.12 in) 
Speed  780 km/h (485 mph)  1530 km/h (950 mph)  2600 km/h (1615 mph)  
Range  < 1.6 km (1 mile)  5 km (3 miles)  8 km (5 miles)  
Propulsion  Caltech 3.5in. rocket  Solidfueled rocket  Solidfueled rocket; 3.6 kN (800 lb) for 1.3 s  Solidfueled rocket 
Warhead  20 kg (45 lb) HE warhead (& others)  (various) 
[1] Navy Training System Plan for the
Consolidated Rocket Systems (N88NTSPA509801/A), August 2000
(formerly public, but access now restricted to authorized persons only)
[2] Norman Friedman: "World Naval Weapons Systems, 1997/98", Naval Institute Press, 1997
[3] Norman Friedman: "US Naval Weapons", Conway Maritime Press, 1983
[4] Norman J. Bowman: "The Handbook of Rockets and Guided Missiles", Perastadion Press, 1963
[5] Frederick I. Ordway III, Ronald C. Wakeford: "International Missile and Spacecraft Guide", McGrawHill, 1960
Back to Directory of U.S. Military Rockets and Missiles, Appendix 4