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The Raytheon Beechcraft Baron

Country of origin  
United States of America

Photos  

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Powerplants  
B55 - Two 140kW (260hp) Continental IO470L fuel injected horizontally opposed flat six piston engines driving two blade constant speed propellers. 58 - Two 225kW (300hp) Teledyne Continental IO550C engines driving three blade constant speed McCauley propellers.

Performance  
B55 - Max speed 373km/h (201kt), max cruising speed 348km/h (188kt), long range cruising speed 320km/h (173kt). Initial rate of climb 1693ft/min. Range with reserves 1836km (990nm). 58 - Max speed 386km/h (208kt), cruising speed 367km/h (198kt). Initial rate of climb 1735ft/min. Range with reserves 2920km (1575nm).

Weights  
B55 - Empty 1468kg (3236lb), max takeoff 2313kg (5100lb). 58 - Empty 1619kg (3570lb), max takeoff 2495kg (5500lb).

Dimensions  
B55 - Wing span 11.53m (37ft 10in), length 8.53m (28ft 0in), height 2.92m (9ft 7in). Wing area 18.5m2 (199.2sq ft). 58 - Wing span 11.53m (37ft 10in), length 9.09m (29ft 10in), height 2.97m (9ft 9in). Wing area 18.5m2 (199.2sq ft).

Capacity  
Models 55 and 56 had standard seating for four, with some models offering an optional fifth seat. Model 58 has optional fifth and sixth seats.

Production  
Production of the Model 58 Baron continues, with more than 2500 of all variants built by late 1998.

Type  
Four or six place business, utility & advanced pilot training twin

History  

The successful and long running Baron line is widely regarded as the most successful of its class, and has comfortably outlasted its main rivals from Piper and Cessna in production.

Development of the Baron began in the late 1950s, the first to fly, the Model 9555 on February 29 1960, essentially being a reengined development of the Model 95 Travel Air (Beech's first light twin, which first flew in August 1956). As a result the Baron can lay claim to Bonanza and T34 Mentor lineage, as the Travel Air combined the fuselage of the former with the tail of the latter, plus twin engines, a new wing and other new features. Some 720 Travel Airs were built from the late 1950s to the late 1960s.

The first Barons were delivered during early 1961, although these early production examples were soon followed off the line in 1962 by the improved A55. The subsequent B55 of 1965 is a definitive Baron model and remained in production until 1982, during which time it was continually refined. During the B55's model life other variants entered production, these included the more powerful C55, D55 and E55. In the meantime the turbocharged Baron 56TC appeared in 1967 and the A56TC in 1970, although these were produced only in limited numbers.

The Model 58 is a stretched version of the 55, and first entered production in 1970. It remains in production today, having evolved somewhat in production during that time. Versions include the pressurised 58P and the turbocharged 58TC. Both are powered by 240kW (325hp) Teledyne Continental TSIO520s. Current production (now under the Raytheon Aircraft Company banner) runs at around 40 per year.

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The backbone of this section is from the The International Directory of Civil Aircraft by Gerard Frawley and used with permission. To get your own copy of the book click here.