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Mil Mi-4 (Hound)


Multi-Mission / Utility Helicopter


Soviet Union | 1953



"The Mi-4 Hound utility helicopter was a direct Soviet response to the successful American H-19 Chickasaw series - of which it clearly shares outward similarities with."



Authored By: Staff Writer | Last Edited: 02/20/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
In keeping pace with developments emerging in the West following the close of World War 2 (1939-1945), the Soviet Union invested heavily in the field of rotorcraft, resulting in the Mil Moscow Helicopter Plant becoming instrumental in bringing about capable helicopters for the various military and civilian market services of the Empire. This line of products went on to include the "Mi-4" which saw its first-flight on June 3rd, 1952, was introduced for service the following year, and saw production reach over 4,000 units include those completed as Z-5s by Harbin of China during the Cold War period. The Mi-4 is out of active, frontline service today (2020).

To the West, the Mi-4 was designated "Hound" and known to the United States Air Force (USAF) as the "Type 36". For the Soviet Army, it proved instrumental in laying down the groundwork for an effective future rotorcraft fleet, eventually being succeeded by such types in same roles as the more capable Mi-8 ("Hip").

Roots of the Mi-4 go back to the dark days of the Korean War (1950-1953) which proved, beyond doubt, that there was a place for helicopters on the modern battlefield. For the USAF, this resulted in a myriad of programs enacted during the post-World War 2 period bringing online such classic designs as the globally successful Sikorsky H-19 "Chickasaw" - a multi-mission performer which went on to see 1,728 units completed (and evolved to become the "H-34") with use worldwide.

In true Soviet style, the Mi-4 certainly borrowed the appearance and general configuration of the American design complete with elevated, side-by-side cockpit set atop a very deep fuselage and aft of a rounded, short nosecone. Overhead sat a three-bladed main rotor atop a short mast while a three-bladed tail rotor was positioned at the tail facing to the starboard side. Internally, beyond the crew of two, the helicopter could ferry sixteen combat-ready troops or up to 3,530lb of cargo. Empty weight reached 11,245lb with an MTOW rated at 16,645lb. The vehicle sat atop a distinct wheeled, four-legged undercarriage arrangement (again, similar to that of the H-19).

As in the American H-19, power was from a single air-cooled, radial piston engine coming in the form of the Shvetsov ASh-82V 14-cylinder developing 1,680 horsepower and used to drive both the main rotor and tail rotor. Maximum speed reached 115 miles-per-hour while range was out to 310 miles and its service ceiling maxed at 18,000 feet. Faster and flying higher than its American counterpart, the Mi-4 was limited in its operational range.

Like the H-19, the Mi-4 found success on the world stage through a plethora of operators from Afghanistan and Albania to Vietnam and Yugoslavia. The Indian Air Force relied on it heavily during the 1960s and 1970s, particularly in its actions against neighboring Pakistan. The inherent flexibility of the machine was notable for it could be used in the transport and gunship roles as needed. The last frontline units served with Albania into the mid-2000s and variants of the line proved plenty.

The prototype was marked as the V-12 and initial production models became Mi-4 ("Hound-A" to NATO). The Mi-4A was a specially configured assault transport model followed by the Mi-4AV armed platforms that included support for rockets, bombs, and incendiaries. Some 185 examples were converted to this standard - see the variants listing for a complete showcase.

Notable designs include Anti-Submarine Warfare (ASW), VIP, Search & Rescue (SAR), MEDical EVACuation (MEDEVAC), fire-fighting, and agricultural role types.

Chinese industry produced the Z-5 form and also developed the abandoned Z-6 with its proposed turbine engine powerplant. In civilian market service the Z-5 became the "Xuanfeng".

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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Mil Mi-4A Multi-Mission / Utility Helicopter.
1 x Shvetsov ASh-82V radial engine developing 1,675 horsepower and driving a three-bladed main rotor and three-blade tail rotor (facing starboard).
Propulsion
115 mph
185 kph | 100 kts
Max Speed
18,045 ft
5,500 m | 3 miles
Service Ceiling
311 miles
500 km | 270 nm
Operational Range
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Mil Mi-4A Multi-Mission / Utility Helicopter.
2
(MANNED)
Crew
87.9 ft
26.80 m
O/A Length
14.4 ft
(4.40 m)
O/A Height
11,244 lb
(5,100 kg)
Empty Weight
15,763 lb
(7,150 kg)
MTOW
Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.
RANGE
ALT
SPEED
Armament
Available supported armament and special-mission equipment featured in the design of the Mil Mi-4 (Hound) Multi-Mission / Utility Helicopter .
OPTIONAL:
4 x Rocket Pods or conventional drop bombs.
Variants
Notable series variants as part of the Mil Mi-4 (Hound) family line.
Mi-4 ("Hound") - Base Series Designation.
V-12 - Prototype Designation.
Mi-4 (Hound-A) - Initial production models.
Mi-4A - Armed Assault Transport.
Mi-4L - VIP Transport; seating for up to six passengers.
Mi-4M ("Hound-C") - Close-Support Combat Helicopter
Mi-4P - Civilian Transport Variant; seating for up to 11 passengers.
Mi-4PL ("Hound-B") - Anti-Submarine Warfare (ASW) Variant.
Mi-4S "Salon" - VIP transport variant.
Mi-4Skh - Chemical Dispensing Variant for agricultural use.
Type-36 - USAF designation.
Harbin Z-5 - Chinese license-production model based on the military transport Mi-4 model.
Harbin Z-6 - Proposed development of Z-5 with turbine engine.
"Xuanfeng" - Chinese license-production model based on the Mi-4 civilian transport model.
Operators
Global customers who have evaluated and/or operated the Mil Mi-4 (Hound). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 4,500 Units

Contractor(s): Mil Moscow Helicopter Plant - Soviet Union
National flag of Afghanistan National flag of Albania National flag of Algeria National flag of Angola National flag of Bulgaria National flag of China National flag of Cuba National flag of Czechia National flag of Egypt National flag of Finland National flag of modern Germany National flag of Guinea National flag of Hungary National flag of India National flag of Indonesia National flag of Iraq National flag of Mongolia National flag of North Korea National flag of Poland National flag of Romania National flag of the Soviet Union National flag of Sudan National flag of Somalia National flag of Syria National flag of Vietnam National flag of Yemen National flag of Yugoslavia

[ Afghanistan; Albania; Algeria; Angola; Bulgaria; Cambodia; China; Cuba; Czechoslovakia; Germany (East); Egypt; Finland; Guinea-Bissau; Hungary; India; Indonesia; Iraq; Mali; Mongolia; North Korea; North Vietnam; Poland; Romania; Somalia; South Yemen; Soviet Union; Syria; Sudan; Vietnam; Yemen; Yugoslavia ]
Relative Max Speed
Hi: 120mph
Lo: 60mph
Aircraft Max Listed Speed (115mph).

Graph Average of 90 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
4500
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
EarlyYrs
WWI
Interwar
WWII
ColdWar
Postwar
Modern
Future
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Image of the Mil Mi-4 (Hound)
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Image of the Mil Mi-4 (Hound)
3 / 3
Image of the Mil Mi-4 (Hound)

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
GROUND ATTACK
CLOSE-AIR SUPPORT
ANTI-SUBMARINE WARFARE
ANTI-SHIP
MEDEVAC
SEARCH & RESCUE
TRANSPORT
COMMERCIAL AVIATION
VIP SERVICE
SPECIAL FORCES
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Mil Mi-4 (Hound) Multi-Mission / Utility Helicopter appears in the following collections:
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