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Bell Model 412

Twin-Engine Utility / Transport Helicopter

Bell Model 412

Twin-Engine Utility / Transport Helicopter

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
IMAGES
Overview



Bell has produced hundreds of its Model 412 twin-engine utility helicopters for various air services of the world.
National Flag Graphic
ORIGIN: United States
YEAR: 1981
STATUS: Active, In-Service
MANUFACTURER(S): Bell Helicopter - USA
PRODUCTION: 870
OPERATORS: Algeria; Argentina; Australia; Botswana; Brazil; Cameroon; Canada; Chile; China; Colombia; Czech Republic; Dominican Republic; El Salvador; Eritrea; Finland; Ghana; Guatemala; Guyana; Honduras; Indonesia; Italy; Jamaica; Japan; Lesotho; Mexico; Netherlands; Nigeria; Norway; Pakistan; Panama; Peru; Philippines; Saudi Arabia; Slovenia; South Korea; Sri Lanka; Thailand; Turkey; United Arab Emirates; United Kingdom; Venezuela; Zimbabwe
National flag of Algeria
ALG
National flag of Argentina
ARG
National flag of Australia
AUS
National flag of Botswana
BOT
National flag of Brazil
BRA
National flag of Cameroon
CMR
National flag of Canada
CAN
National flag of Chile
CHI
National flag of China
CHN
National flag of Colombia
COL
National flag of Czech Republic
CZ
National flag of Dominican Republic
DOM
National flag of El Salvador
ELS
National flag of Eritrea
ERI
National flag of Finland
FIN
National flag of Ghana
GHA
National flag of Guatemala
GUA
National flag of Guyana
GUY
National flag of Honduras
HON
National flag of Indonesia
IDO
National flag of Italy
ITA
National flag of Jamaica
JAM
National flag of Japan
JPN
National flag of Lesotho
LES
National flag of Mexico
MEX
National flag of Netherlands
NED
National flag of Niger
NGR
National flag of Nigeria
NGA
National flag of Norway
NOR
National flag of Pakistan
PAK
National flag of Panama
PAN
National flag of Peru
PER
National flag of Philippines
PHI
National flag of Saudi Arabia
SAU
National flag of Slovenia
SLN
National flag of South Korea
SKO
National flag of Sri Lanka
SRI
National flag of Thailand
THL
National flag of Turkey
TUR
National flag of United Arab Emirates
UAE
National flag of United Kingdom
UK
National flag of Venezuela
VEN
National flag of Zimbabwe
ZIM
Technical Specifications



Unless otherwise noted the presented statistics below pertain to the Bell Model 412 model. Common measurements, and their respective conversions, are shown when possible.
CREW: 2
POWER: 1 x Pratt & Whitney Canada PT6T-3D OR PT6T-3DF "Twin-Pac" turboshaft engines developing 1,250 horsepower each and driving a four-bladed main rotor and two-bladed tail rotor.
ADVERTISEMENTS
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Variants / Models



• Model 412 - Base Series Designationl initial production model; fitted with PT6T-3B engines.
• Model 412SP - Special performance model with PT6T-3BF engines.
• Model 412HP - High-performance model with PT6T-3BG OR PT6T-3D engines.
• Model 412EP - Enhanced performance model with PT6T-3DF engines.
• Model 412EPI - Enhanced performance version with modernized, all-glass cockpit and digitally-controlled engines (PT6T-9 series); increased mast torque; increased maximum gross weight; run-dry transmission system.
• Model 412CF - Canadian Army transport helicopter based on Model 412EP.
• CH-146 Griffon - Royal Canadian Air Force (RCAAF) designation of the Model 412CF.
• Griffin HT1 - RCAF training helicopter
• Griffin HAR2 - RCAF Search and Rescue (SAR) model.
• AB412 - Civilian market transport model by Agusta of Italy.
• AB412EP - Enhanced Performance model by Agusta.
• AB412 Grifone - Military model by Agusta.
• AB412 CRESO - Model with ground search radar fitted by Agusta.
• Nbell 412 - Indonesian local-production model by Indonesia Aerospace (IAe).
• Panha 412EP - unlicensed Iranian military version of the Model 412EP model.


History



Detailing the development and operational history of the Bell Model 412 Twin-Engine Utility / Transport Helicopter.  Entry last updated on 1/10/2019. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
in 1968, Bell Helicopter introduced the Bell Model 212 as a twin-engine variant of its Model 204/205 series. The new model became a notable commercial success for the company. In 1981, the line was evolved to produce the Bell 412 which retained the twin-engine configuration but brought about support for a four-bladed main rotor. The type went on to see widespread adoption by civilian and military forces of the world and over 870 have been produced since. The Canadian CH-146 Griffon (detailed elsewhere on this site) is an offshoot of the Bell 412 line.

In the mid-1970s, Bell Helicopter realized the market need for a modernized version of its critical Model 212 product. This spurred the company to revisit the Model 212 and explore various aspects of its design to help improve its performance - namely range and straight-line speed. It was decided to mate a new four-bladed main rotor to the existing twin-engine design. The rotor used composite construction and was of a smaller diameter which both improved function of the spinning blades when compared to the earlier two-bladed main rotor unit. With this major change in place, a prototype Model 412 was first-flown during August of 1979. Market introduction then followed in 1981 and production has since spanned from 1979 to today (2017). In 1989, the line was moved to Canada where manufactured has continued.

The original model was simply known as the Bell 412 and this version carried 2 x Pratt & Whitney Canada PT6T-3B turboshaft engines driving the rotor blades. The Bell 212SP followed as a "special performance" model with PT6T-3BF engines instead. A higher-performance variant became the Bell 412HP with its PT6T-3BG or PT6T-3D engines.

The Bell 412 EP was an enhanced performance form powered by 2 x PT6T-3DF engines, providing a maximum speed of 160 miles per hour, a cruising speed around 140 mph, a range out to 610 miles and a service ceiling of 20,000 feet. Rate-of-climb became 1,350 feet-per-minute.

In the Bell 412EPI, an all-glass cockpit was introduced along with electronically-controlled engines (PT6T-9 series). The Bell 412CF became the basis for the aforementioned Canadian CH-146 and this was based on the Bell 412EP model. Its flight training form was the HT1 and the Search and Rescue (SAR) platform became the HAR2.

In Italy, Agusta took on license-production of the Bell 412 for the civilian market under the designation of Agusta-Bell AB412. The EP-model was the AB412EP. The military transport derivative became the AB412 "Grifone" and a special ground radar-equipped model was the AB412 CRESO. Indonesian Aerospace (IAe) produced the Model 412 as the NBell 412. An little-known unlicensed Iranian-build version of the Model 412 is the Panha 412EP, debuting in 2016.

The Bell Model 412 has proven a popular mount across the world with operators from Algeria and Argentina to Venezuela and Zimbabwe. Beyond its stated military and civilian market value, the helicopter has proven equally-successful as a governmental-level VIP/staff transport for many nations as well. Some police and fire-fighting services make use of the type - such is its versatility.




Program Updates

July 2018 - The Model 412EPX was unveiled by Bell and its joint-venture partner Subaru for the commercial marketplace. The model represents an upgraded form of the Model 412EPI and, itself, forms the basis of the upcoming militarized UH-X helicopter for the Japanese military. Deliveries of the first EPX will be in 2022 with assembly handled at the Bell Mirabel, Canada location.

January 2019 - The Indonesian Defense Ministry has contracted for eight Airbus Helicopters H225M and nine Bell Model 412EPI helicopters to be acquired through Indonesian Aerospace. The deal includes support, training, logistics, and an H225M simulator as well as weapons and ammunition for the Model 412EPI.
Media





General Assessment
Firepower  
Performance  
Survivability  
Versatility  
Impact  


Values are derrived from a variety of categories related to the design, overall function, and historical influence of this aircraft in aviation history.
MF Power Rating
32
The MF Power Rating takes into account over 60 individual factors related to this aircraft entry. The rating is out of 100 total possible points.
Relative Maximum Speed
Hi: 200mph
Lo: 100mph
This entry's maximum listed speed (162mph).

Graph average of 150 miles-per-hour.
City-to-City Ranges
NYC
 
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LDN
 
  PAR
PAR
 
  BER
BER
 
  MSK
MSK
 
  TKY
TKY
 
  SYD
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  LAX
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  NYC
Graph showcases the Bell Model 412's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production (870)
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
870
870

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


Altitude Visualization
Small airplane graphic
Supported Roles
A2A
Interception
UAV
Ground Attack
CAS
Training
ASW
Anti-Ship
AEW
MEDEVAC
EW
Maritime/Navy
SAR
Aerial Tanker
Utility/Transport
VIP
Passenger
Business
Recon
SPECOPS
X-Plane/Development
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
Commitments / Honors
Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur War
Military lapel ribbon for experimental x-plane aircraft
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.


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