Beechcraft Bonanza

Bonanza
A Belgian owned F33A Bonanza taking off at Kemble Airfield, Gloucestershire, England
Role Civil utility aircraft
Manufacturer Beechcraft
First flight 22 December 1945
Introduction 1947 [1]
Status Active service
Produced 1947–present
Number built >17,000
Unit cost US$700,000 (2006)
Variants Beechcraft Baron
Bay Super V Bonanza
Beechcraft T-34 Mentor

The Beechcraft Bonanza is an American general aviation aircraft introduced in 1947 by The Beech Aircraft Corporation of Wichita, Kansas. As of 2010, it is still being produced by Hawker Beechcraft, and has been in continuous production longer than any other airplane in history. More than 17,000 Bonanzas of all variants have been built.[2]

Contents

Design and development

At the end of World War II, two all-metal aircraft emerged, the Model 35 Bonanza and the Cessna 195, that represented very different approaches to the premium-end of the postwar civil aviation market. With its high wing, seven-cylinder radial engine, fixed tailwheel undercarriage and roll-down side windows, the Cessna 195 was little more than a continuation of prewar technology; the 35 Bonanza, however, was more like the fighters developed during the war, featuring an easier-to-manage horizontally-opposed six cylinder engine, a rakishly streamlined shape, retractable nosewheel undercarriage (although the nosewheel initially was not steerable, or castering)[3] and low-wing configuration.

Designed by a team led by Ralph Harmon, the model 35 Bonanza was a relatively fast, low-wing monoplane at a time when most light aircraft were still made of wood and fabric. The Model 35 featured retractable landing gear, and its signature V-tail (equipped with a combination elevator-rudder called a ruddervator), which made it both efficient and the most distinctive private aircraft in the sky. The prototype 35 Bonanza made its first flight on 22 December 1945, with the first production aircraft debuting as 1947 models. The first 30–40 Bonanzas produced had fabric-covered flaps and ailerons, after which, those surfaces were covered with magnesium alloy sheet.[4]

In 1982 the production of the V-tail Bonanza stopped but the conventional-tail Model 33 continued in production until 1995.  Still built today is the Model 36 Bonanza, a longer-bodied, straight-tail variant of the original design, introduced in 1968.

All Bonanzas share an unusual feature: The yoke and rudder pedals are interconnected by a system of bungee cords that assist in keeping the airplane in coordinated flight during turns. The bungee system allows the pilot to make coordinated turns using the yoke alone, or with minimal rudder input, during cruise flight. Increased right-rudder pressure is still required on takeoff to overcome torque and P-factor. In the landing phase, the bungee system must be overridden by the pilot when making crosswind landings, which require cross-controlled inputs to keep the nose of the airplane aligned with the runway center line without drifting left or right. This feature started with the V-tail and persists on the current production model.

The twin-engine variant of the Bonanza is called the Baron, whereas the Twin Bonanza is a different design and not based on the original single-engine Bonanza fuselage.

QU-22 Pave Eagle

The QU-22 was a Beech 36/A36 Bonanza modified during the Vietnam War to be an electronic monitoring signal relay aircraft, developed under the project name "Pave Eagle" for the United States Air Force. A reduction geared Continental IO-520 engine was used to reduce its noise signature, much like the later Army-Lockheed YO-3A. These aircraft were intended to be used as unmanned drones to monitor sensors along the Ho Chi Minh Trail in Laos and report troop and supply movements. When the project was put into operation in 1968, however, the drones were all flown by pilots of the 554th Reconnaissance Squadron.

Six YQU-22A prototypes (modifications of the Beech 33 Debonair) were combat-tested in 1968, and two were lost during operations, with a civilian test pilot killed. Twenty-seven QU-22Bs were modified, 13 in 1969 and 14 in 1970, with 6 lost in combat. Two Air Force pilots were killed in action. All of the losses were due to engine failures or effects of turbulence.[5]

Variants

Model 33 Debonair/Bonanza (BE33)

35-33 Debonair
(1959) An M35 Bonanza with conventional fin and tailplane, one 225hp Continental IO-470-J, 233 built
35-A33 Debonair
(1961) Model 33 with rear side windows and improved interior trim, 154 built
35-B33 Debonair
(1962-1964) A33 with contoured fin leading edge, N35 fuel tank modifications and P35 instrument panel, 426 built
35-C33 Debonair
(1965-1967) B33 with teardrop rear side windows, enlarged fin fairing and improved seats, 305 built
35-C33A Debonair
(1966-1967) C33 with a 285hp Continental IO-520-B engine and optional fifth seat, 179 built
D33 Debonair
One S35 modified as a military close-support prototype
E33 Bonanza
(1968-1969) C33 with improved Bonanza trim, 116 built
E33A Bonanza
(1968) E33 with a 285hp Continental IO-520-B engine, 85 built
E33B Bonanza
E33 with strengthened airframe and certified for aerobatics
E33C Bonanza
(1968-1969) E33B with a 285hp Continental IO-520-B engine, 25 built
F33 Bonanza
(1970) E33 with deeper rear side windows and minor improvements, 20 built
F33A Bonanza
(1970-1994) F33 with a 285hp Continental IO-520-B engine, later aircraft have a longer S35/V35 cabin and extra seats, 821 built
F33C Bonanza
(1970) F33A certified for aerobatics, 118 built
G33 Bonanza
(1972-1980) F33 with a 260hp Continental IO-470-N engine and V35B trim, 50 built

Model 35 Bonanza (BE35)

35 

(1947–1948), main production with 165 hp (123 kW) Continental E-185-1 engine, 1500 built

A35
(1949) Model 35 with higher take-off weight, and minor internal changes, 701 built
B35
(1950) A35 with a 165hp Continental E-185-8 engine and other minor changes, 480 built
C35
(1951-1952) B35 with a 185hp Continental E-185-11 engine, metal propeller, larger tail surfaces and higher take-off weight, 719 built
D35
(1953) C35 with increased take-off weight and minor changes, 298 built
E35
(1954) D35 with optional E-225-8 engine and minor changes, 301 built
F35
(1955) E35 with extra rear window each side, 392 built
G35
(1956) F35 with a Continental E-225-8 engine, 476 built
H35
(1957) G35 with a Continental O-470-G engine, strengthened structure and internal trim changes, 464 built
J35
(1958) H35 with a fuel injected Continental IO-470-C engine, optional autopilot and improved instruments, 396 built
K35
(1959) J35 with fuel load increase, optional fifth seat and increased take-off weight, 436 built
M35
(1960) K35 with cambered wingtips and minor changes, 400 built
N35
(1961) M35 with a 260hp Continental IO-470-N engine, increased fuel capacity, increased take-off weight and teardrop rear side windows, 280 built
035
(1961) Experimental version, an N35 fitted with laminar flow airfoil and redesigned landing gear; only one built
P35
(1962-1963) N35 with new instrument panel and improved seating, 467 built
S35
(1964-1965) P35 with a Continental IO-520-B engine, higher take-off weight, longer cabin interior, optional fifth and sixth seat, 667 built
V35
(1966-1967) S35 with higher take-off weight, single-piece windshield, optional turbocharged TSIO-520-D engine (as V35-TC), 873 built
V35A
(1968-1969) V35 with a streamlined windshield and minor changes, optional turbocharged TSIO-520-D engine (as V35A-TC), 470 built
V35B
(1970-1982) V35A with minor improvements to systems and trim, optional turbocharged TSIO-520-D engine (as V35B-TC), 873 built

Model 36 Bonanza (BE36)

36
(1968-1969) E33A with a ten-inch fuselage stretch, four cabin windows each side, starboard rear double doors and seats for six, one 285hp Continental IO-520-B engine, 184 built
A36
(1970-2005) Model 36 with improved deluxe interior, a new fuel system, higher take-off weight, from 1984 fitted with a Continental IO-550-BB engine and redesigned instrument panel and controls, 2128 built
A36TC
(1979-1981) Model 36 with a 3-bladed propeller and a 300hp turbocharged Continental TSIO-520-UB engine, 280 built
T36TC
(1979) A36 fitted with T-tail and a 325hp Continental TSIO-520 engine, one built
B36TC
(1982-2002) A36TC with longer span wing, increased range, redesigned instrument panel and controls, higher take-off weight, 116 built
G36
(2006-present) – glass cockpit update of the A36 with the Garmin G1000 system.[2]

QU-22

YQU-22A (Model P.1079)
USAF military designation for a prototype intelligence-gathering drone version of the Bonanza 36, six built
YAU-22A (Model PD.249)
Prototype low-cost close-support version using Bonanza A36 fuselage and Baron B55 wings, one built
QU-22B
Production drone model for the USAF operation Pave Eagle, 27 built

Modifications

Propjet Bonanza (A36)
standard aircraft modified by Tradewind Turbines with an Allison 250-B17F/2 turboprop engine (Original STC by Soloy).[6]
Turbine Air Bonanza
B36TC modified by West Pacific Air, LLC and Rocket Engineering with a Pratt & Whitney PT6A-21 turboprop engine
Whirlwind System II Turbonormalized Bonanza (36, A36, G36)
standard aircraft modified by Tornado Alley Turbo with a Tornado Alley Turbonormalizing system and approved for a 4000 lb MTOW
Whirlwind TCP Bonanza (A36TC or B36TC)
standard aircraft modified by Tornado Alley Turbo with a TCM IO-550B engine and Tornado Alley Turbonormalizing system, this airframe is approved for a 4042 lb MTOW.
Bay Super V
A multiengine conversion of the C35 Bonanza

Model 40

The Beechcraft Model 40A was an experimental twin-engined aircraft based on the Bonanza. Only one prototype was built in 1948. It featured a unique over/under arrangement of two 180 hp Franklin engines mounted on top of each other and driving a single propeller. The plane had a different engine cowl from a standard Bonanza, and the nose gear could not fully retract, but otherwise it greatly resembled the production Bonanzas of the time. Certification rules demanded a firewall be fitted between the two engines, however, thus stopping development.[7] The status of the prototype is unknown.

Parastu

This is the standard F33 (1970) variant of the Bonanza Iran has reverse engineered, and is manufacturing without a license.[8][9]

Operators

Civil

The Bonanza is popular with air charter companies, and is operated by private individuals and companies.

Military

 Argentina
 Bolivia
 Brazil
 Haiti
 Iran
 Israel
 Indonesia
 Ivory Coast
 Mexico
 Netherlands
 Nicaragua
 Paraguay
 Saudi Arabia
 Spain
 Thailand
 United States

Notable flights

Accidents and incidents

Specifications (2011 model G36)

Data from Hawker Beechcraft[17][18]

General characteristics

Performance

Avionics

See also

Related development
Aircraft of comparable role, configuration and era

Related lists

References

Notes
Bibliography

External links