Aviation / Aerospace

de Havilland Canada DHC-2 Beaver

Utility Transport Aircraft [ 1948 ]

Over 1,600 examples of the de Havilland Canada DHC-2 Beaver were produced over a two-decade span.

Authored By: Dan Alex | Last Edited: 08/24/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

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Introduced in 1948, the de Havilland Canada DHC-2 "Beaver" went on to achieve global popularity with over 35 operators using the type and production reaching an impressive post-World War 2 total of 1,657 units. Manufacture of the aircraft spanned from 1947 until 1967 and the successful DHC-2 also went on to form the basis for the similar DHC-3 "Otter" series detailed elsewhere on this site. While production of the DHC-2 has since closed, the aircraft line is still in active service throughout the world today (2016) with no sign of its end coming soon.

The DHC-2 was developed along the lines of a utility-minded platform with inherent Short Take-Off and Landing (STOL) capabilities. This meant a lightweight overall design with good power stemming from a single engine and a shoulder-mounted wing structure to maximize lift and agility. First flight of a prototype was on August 16th, 1947 with service introduction arriving in 1948.

Origins of the DHC-2 lay in the years immediately following the close of World War 2 (1945). The world aircraft market saw a dramatic shift away from military platforms to civilian-market types and de Havilland - makers of the famous wartime twin-engined DH.98 "Mosquito" series - followed suit. Research centered on delivering a new aircraft to "bush" pilots - one of rugged, sound and reliable design. Due to the variable environments that the new aircraft could operate across, a floatplane and wheeled undercarriage was developed to suit customer needs. Large side doors, placed along both fuselage sides, was another of the notable requirements bush pilots made. The engine of choice became the Pratt & Whitney Canada "Wasp Junior" radial of 450 horsepower - these left over from the Canadian war effort. Design work began in 1946.

The DHC-2 was not an outright commercial success. However slowly-but-surely its capabilities became known within certain flight circles. It was not until its major endorsement arrived through the United States Army selection as its next general purpose utility transport that raised the export profile of the DHC-2 considerably. The U.S. Army used the aircraft to replace an aging stock of Cessna aircraft in the same utility transport role.

As completed, the DHC-2 needed only a single pilot to operate her. The passenger section carried up to six persons or 2,100 lb of cargo as needed. The primary engine fit became the Pratt & Whitney R-985 "Wasp Junior" radial of 450 horsepower which helped to provide speeds nearing 160 miles per hour (cruising was closer to 145 mph). Its range was out to 455 miles and the listed service ceiling was 18,000 feet. Rate-of-climb was a usable 1,020 feet per minute.

Since its inception, the DHC-2 has seen a plethora of variants emerge - the "Beaver I" was the original transport model and accepted into service with the British Army as the "Beaver AL Mk 1". The U.S. Army operated them under the "C-127" designation initially and then as the "L-20". These were tested as "YL-20". Another U.S. Army variant to emerge was the L-20A "Beaver" which then became the "U-6A" after the 1962 reorganization. About 968 of these were procured and followed by the "L-20B" - which became six "U-6B" systems after 1962.

The "Beaver II" was a form outfitted with the Alvis "Leonides" radial piston engine. The Wipaire "Super Beaver" were surplus U.S. Army and USAF types modified for post-military roles. The Wipaire "Boss Turbo Beaver" - as its name suggests - was given a turbo modification. The "Turbo-Beaver III" carried a Pratt & Whitney PT6A-6 or -20 series turboprop engine of 578 horsepower. Another post-military conversion model became the Airtech Canada DHC-2 which were given PZL-3S radial piston engines outputting 600 horsepower. The Volpar Model 4000 fitted an AiResearch TPE331-2U-203 turboprop engine driving a three-bladed propeller and was given an all-new tail fin. The Viking DHC-2T "Turbo Beaver" was a model completed by Viking Air with changes to include a Pratt & Whitney PT6A-34 series turboprop engine developing 680 horsepower.

The DHC-2 series has seen operational service with both military and civilian parties worldwide - from Argentina and Australia to Yugoslavia and Zambia.©MilitaryFactory.com

Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.

Specifications

Service Year

1948

Origin

Canada

Status

ACTIVE
In Active Service.

Crew

1

Production

1,657
UNITS

de Havilland Canada - Canada

(View other Aviaton-Related Manufacturers)

Argentina; Austria; Burma; Cambodia; Chile; Colombia; Cuba; Dominican Republic; Finland; France; Ghana; Greece; Haiti; Indonesia; Iran; Kenya; Laos; Netherlands; New Zealand; Oman; Panama; Paraguay; Peru; Philippines; South Vietnam; South Yemen; Thailand; Turkey; Uganda; United Kingdom; United States; Uruguay; Yugoslavia; Zambia

(OPERATORS list includes past, present, and future operators when applicable)

✓ Transport
General transport functionality to move supplies/cargo or personnel (including wounded and VIP) over range.

✓ Commercial Aviation
Used in roles serving the commercial aviation market, ferrying both passengers and goods over range.

✓ VIP Service
Used in the Very-Important-Person (VIP) passenger transport role, typically with above-average amenities and luxuries as standard.

Length

30.2 ft
(9.22 m)

Width/Span

48.0 ft
(14.63 m)

Height

9.0 ft
(2.74 m)

Empty Wgt

3,000 lb
(1,361 kg)

MTOW

5,099 lb
(2,313 kg)

Wgt Diff

+2,099 lb
(+952 kg)

(Showcased structural values pertain to the base de Havilland Canada DHC-2 Beaver production variant)

Installed: 1 x Pratt & Whitney R-985 Wasp Junior radial piston engine developing 450 horsepower.

Max Speed

158 mph
(255 kph | 138 kts)

Ceiling

15,046 ft
(4,586 m | 3 mi)

Range

455 mi
(732 km | 1,356 nm)

Rate-of-Climb

1,020 ft/min
(311 m/min)

♦ MACH Regime (Sonic)

Sub

Trans

Super

Hyper

HiHyper

ReEntry

♦

(Showcased performance specifications pertain to the base de Havilland Canada DHC-2 Beaver production variant. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)

None.

Supported Types

(Not all ordnance types may be represented in the showcase above)

DHC-2 "Beaver" - Base Series Name

Beaver Mk I - Initial utility model

Beaver AL Mk I - British Army designation of the Mk I

Beaver C-127 - U.S. Army designation until 1962

Beaver YL-20 - U.S. Army designation of evaluation models.

L-20A Beaver (U-6A) - U.S. Army model; 968 units completed.

L-20B Beaver (U-6B) - U.S. Army model with slight changes from A-model forms; six total units.

Beaver Mk II - One-off form with Alvis Leonides radial piston engine fitted.

Wipaire "Boss Turbo-Beaver" - Post-military L-20 models

Turbo-Beaver Mk III - Fitted with PW PT6A-6/-20 turboprop engines.

Airtech Canada DHC-2 (PZL-3S) - Post-military model with Ivchenko PZL-3S radial engine of 600 horsepower.

Volpar "Model 4000" - Model of 1972; AiResearch turboprop engine driving three-bladed propeller; all-new tail unit.

Viking DHC-2T "Turbo Beaver" - Fitted with PWC PT6A-34 turboprop engine of 680 horsepower.

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Images Gallery

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Image from the United States Department of Defense DIVDS image network.

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Image from the National Museum of the United States Air Force, Dayton, Ohio.

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Image from the National Museum of the United States Air Force, Dayton, Ohio.

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