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The Boeing CC-137 was a transport and tanker aircraft which served with the Canadian Forces from 1970 to 1997. The Boeing 707-347C aircraft provided long range passenger transport for the military, VIP transport for government and air-to-air refueling for fighters such as the CF-116 Freedom Fighter and CF-18 Hornet. It was replaced by the Airbus CC-150 Polaris in the transport role and much later in the tanker role.

CC-137
A Canadian Armed Forces Boeing 707 (CC-137)
Role	Military transport aircraft Type of aircraft
Manufacturer	Boeing
First flight	1970
Introduction	1972
Retired	1997
Primary user	Canadian Forces
Number built	5
Developed from	Boeing 707

Design and development

During the 1960s, the Royal Canadian Air Force set out a requirement to replace the aging fleet of Canadair CC-106 Yukons and Canadair CC-109 Cosmopolitan transports. Initially, the Boeing KC-135 was being considered because the versatile design could also fulfill a yet-unspecified aerial refuelling role.[1] Although a "purpose-built" aircraft would have suited the RCAF requirements better, an opportunity to acquire Boeing 707s as an alternative, soon presented itself.[2]

Operational history

Canada purchased five Boeing 707s in 1970–71 to replace the RCAF's CC-106 Yukons in the long range transport role and the CC-109 Cosmopolitan as an executive or short-range transport.[3] The first four aircraft had been built for Western Airlines, but that order was subsequently cancelled; the fifth was bought separately a year later. To fulfil Canada's requirements for aerial refueling, two aircraft were fitted with Beechcraft made probe and drogue refueling pods in 1972.[4] The two sets of refuelling equipment were moved from aircraft to aircraft to keep fleet utilization even between the airframes.

The CC-137 fleet had a combined total of 191,154 hours, remaining in service in the transport role until 1995, with two aircraft continuing in use as tankers until 1997.[4][5]

Most of the fleet ended up with the Northrop Grumman E-8 Joint STARS programme either for spare parts or conversion to E-8C standard for the United States Air Force.[6]

Operators

 Canada

• Canadian Forces Air Command
  • No. 437 "Husky" Squadron RCAF based at CFB Trenton, Ontario

Specifications (CC-137)

Data from Boeing CC137 (707-347C)[7]

General characteristics

• Crew: 3
• Capacity: 170 passengers and 90,000 lb (41,000 kg) payload
• Length: 152 ft 11 in (46.61 m)
• Wingspan: 145 ft 9 in (44.42 m)
• Height: 42 ft 5 in (12.93 m)
• Wing area: 3,010 sq ft (280 m²)
• Empty weight: 140,000 lb (63,569 kg)
• Max takeoff weight: 327,000 lb (148,000 kg)
• Powerplant: 4 × Pratt & Whitney JT3D-7 turbofans, 19,700 lbf (88 kN) thrust each

Performance

• Cruise speed: 618 mph (994 km/h, 537 kn)
• Range: 7,638 mi (12,290 km, 6,636 nmi)
• Service ceiling: 39,000 ft (12,000 m)

See also

Related development

• Boeing 707
• Boeing C-137 Stratoliner
• Boeing KC-135 Stratotanker

Related lists

• List of aircraft of Canada's air forces

References

Notes

Bibliography

External links

• Canadian Forces Historical Aircraft – Boeing 707 (CC-137)
• Boeing CC-137 B707-320 at rcaf.com

На других языках

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- [en] Boeing CC-137

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[fr] Boeing CC-137

Le CC-137 désigne 5 avions de transport Boeing 707-347C qui ont servi dans les Forces canadiennes de 1970 à 1997. L'avion assure le transport de passagers à longue distance pour les militaires, le transport de VIP pour le gouvernement et d'avion ravitailleur pour les avions de chasse CF-116 Freedom Fighter et CF-18 Hornet. Il est remplacé par le Airbus CC-150 Polaris dans le rôle de transport. Présentement, l'avion de transport Lockheed C-130 Hercules fourni une plate-forme de compromis pour le ravitaillement en vol, mais les futures conversions du CC-150 Polaris permettront de ravitailler les autres appareils à plus grande vitesse.

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