Beech 58 Baron • wp.archivoaereo.com

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Development of the Base Model

In parallel with the short-fuselage Beech Model 55, work progressed on a larger modification featuring a six-seat “club” type cabin, similar to the single-engine Model 36 Bonanza, and incorporating the wing and powerplant from the E55. The Beech Model 58 Baron performed its maiden flight on June 23, 1969. This variant is easily distinguishable from other Baron models by its four windows on each side of the passenger cabin and a large double door on the right side. The Model 58 Baron’s maximum takeoff weight is 2449 kg, with a cruising speed of 370 km/h at an altitude of 2134 m.

Production and Continuous Improvements

The variant entered series production in 1970 and has been continuously improved and manufactured ever since. During serial production, the Model 58 began to be equipped with 300-horsepower Teledyne Continental IO-550-C engines, and fuel tank capacity was increased to 734 liters. By the beginning of 2000, over 2700 Model 58 Baron aircraft had been built.

Variants: Pressurized and Turbocharged Baron

The Model 58’s evolution led to the 58P Pressurized Baron, which made its first flight on August 16, 1973, with sales commencing in 1974. Externally, the Model 58P differed from the “58” by having its large double door relocated to the left side. The Pressurized Baron was fitted with two Continental TSIO-520-LB1C turbosupercharged engines, each producing 310 hp. It was also equipped with an automatic cabin pressurization system, capable of maintaining sea-level pressure up to an altitude of 2377 m, and 2438 m pressure up to 5486 m.

In 1977, the Pressurized Baron underwent modernization, featuring an improved cabin pressurization system and the installation of 325 hp TSIO-520-WB engines. This upgrade increased its maximum speed to 483 km/h and its cruising speed to 446 km/h. Production of the Pressurized Baron ceased in 1988, with 495 aircraft built. The 58TC variant, equipped with turbosupercharged engines but without a pressurized cabin, made its first flight on October 31, 1975; 151 units were built before production ended in 1984.

Technical Specifications

Modification	Model 58Р
Wingspan, m	11.53
Aircraft length, m	9.12
Aircraft height, m	2.79
Wing area, m2	18.51
Empty weight	1822
Maximum takeoff weight	2812
Fuel, l	538
Engine type	2 Piston engines Continental TSIO-520-WB
Power, kW	2 x 325
Maximum speed, km/h	483
Cruising speed, km/h	426
Economical speed, km/h	375
Practical range, km	2277
Maximum rate of climb, m/min	540
Practical ceiling, m	7620
Crew	1
Payload	3-5 passengers