
1965 S35 V-Tailed Bonanza
The
Beechcraft Bonanza is an American general aviation aircraft introduced in
1947 by The Beech Aircraft Corporation of
Wichita,
Kansas
. 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.
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 non-steerable, or castering) and low-wing
configuration.
Designed by a team led by
Ralph Harmon,
the model 35 Bonanza was the first truly modern high-performance
personal aircraft. It was a very 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).
A series of fatal accidents caused many to suspect flaws in the
V-tail structural design. A study by Beech concluded that the cause
was primarily use of the Bonanza for long-distance travel in all
types of weather, and that the inflight breakups were mainly the
result of excursions into extreme turbulence (as might be found in
thunderstorms), not any inherent flaw in the design. Other types
that were similarly employed, such as the Cessna 210, did not have
the same breakup rate as the Bonanza and a more likely explanation
was that the leading edges of the stabilizers were cantilevered too
far ahead of the main spars. The FAA issued two
Airworthiness Directives covering
the V-tail. The first (AD 2002-21-13) applied only to the earliest
35, A35, and B35 models built in 1947 to 1950, and mandated a
detailed inspection and repair procedure. The second (AD 94-20-04
R2) required a one-time inspection of the empennage structure,
reinforced the need for correct balancing of the control surfaces
and tensioning of the cables, and included the installation of a
cuff securing the leading edge of the stabilizers to the fuselage
skins.
In 1982 the V-tail Bonanza was dropped from production, though more
than 6,000 V-tail models are still flying today. In general
aviation circles, the epithet "fork-tailed doctor killer" became a
familiar denigration of the V-tail model. Many V-tailed Model 35
Bonanzas are still flying, and they command a premium price on the
used aircraft market.
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 flexible bungees which 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. On takeoff increased right-rudder
pressure is still required to overcome
torque
and
P-factor. In the landing phase the
bungee system must be over-ridden by the pilot when making
crosswind landings, which require
cross-controlled inputs to keep the nose
of the airplane aligned with the runway centerline 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. However when the project was put
into operation in 1968, 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. 27 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.
Variants
Model 33 Debonair/Bonanza (BE33)

Rear view of V-tail variant, showing
tail design
- 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)

1965 Model V35
- 35
(1947-1948), main production with 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)

Beechcraft A36 Bonanza modified with
the Tradewind Turbine's turboprop conversion
- 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
re-designed instrument panel and controls, 2128 built.
- A36TC
- (1979-1981) Model 36 with a 3-bladed propeller and a 300hp
turbo-charged 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,
re-designed instrument panel and controls, higher take-off weight,
116 built.
- G36
- (2006-present) - glass cockpit
update of the A36 with the Garmin G1000
system.
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).
- 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 lbs. 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 lbs.
MTOW.
Unlicensed version
- Parastu
- This
is the standard F33 (1970) variant of the Bonanza that Iran
has reverse
engineered and is manufacturing without a license.
Military operators
- Argentina
, Bolivia
, Brazil
, Haiti
, Iran
, Israel
, Indonesia
, Ivory
Coast
, Mexico, Netherlands, Nicaragua
, Paraguay
, Spain, Thailand
, United States
Notable events and incidents
- In
January 1949 the fourth Bonanza to come off the production line was
piloted by Captain William Odom from Honolulu, Hawaii
to the continental United States (2,900 statute
miles), the first light airplane to do so.. The airplane was
called Waikiki Beach, and its 40-gallon fuel capacity was
increased (using fuselage and wing tanks) to 268 gallons, which
gave a still-air range of nearly 5,000 statute miles.
- In
March 1949 Captain Odom piloted Waikiki
Beech a distance of from Honolulu to Teterboro, New
Jersey
, setting a nonstop record. Flight time was
36:01 hrs. After that flight the airplane was donated to
the Smithsonian
Institution
's National Air Museum
, as the National Air and Space Museum was then
called.
- On 7
October 1951 an American congressman from Illinois
, Peter F.
Mack, Jr. began an
around-the-world trip in Waikiki Beach, on loan from the
Museum and reconditioned at the Beech factory and re-christened
Friendship Flame. He spent 15 weeks traveling through 30
countries (223 hrs flight time). The plane was again refurbished in
1975 and returned to the National Air and Space Museum. It is still
on display there, with both names painted on its sides.
- On 3
February 1959, Buddy Holly, Ritchie Valens, The
Big Bopper, as well as the pilot Roger Peterson died when their
Beechcraft B35 Bonanza, registration N3794N, crashed
shortly after takeoff, at night and in bad
weather.
- In
February 1981, Apple
Computer
co-founder
Steve Wozniak crashed his Beechcraft
Bonanza while taking off from Santa Cruz Sky Park. The NTSB
investigation revealed that Wozniak did not have a "high
performance" endorsement (making him legally unqualified to operate
the airplane), and had a "lack of familiarity with [the] aircraft."
The cause of the crash was determined to be a premature liftoff,
followed by a stall and "mush" into a 12-foot embankment. Wozniak
later made a full recovery, albeit with a case of temporary
Retrograde amnesia.
- On 19 March 1982, Ozzy Osbourne
guitarist Randy Rhoads was killed while
flying in a Beechcraft Bonanza with pilot Andrew Aycock and hairdresser Rachel Youngblood.
- On 7 April 1982, former Formula One
driver Harald Ertl and other members of
his family died in a crash of a Model 36 Bonanza (BE36), due to
engine failure, that was flown by his brother in law, Dr. Jörg
Becker-Hohensee.
- On 31 March 1984, Robert J.
Moriarty flew the Beechcraft V-35 Bonanza,
N111MS through the arches under the Eiffel Tower
in Paris.
- Former Baltimore Orioles,
New York Yankees and Atlanta Braves pitcher Jim Hardin died in a crash of his Beech 35-C33A
on 9 March 1991.
- On 13 March 2006, game show host Peter Tomarken crashed his Bonanza A36 into
Santa Monica Bay during climb-out from the Santa Monica Airport in
California. He was en route to San Diego to pick up a cancer
patient who needed transportation to UCLA Medical Center for
treatment. Tomarken and his wife were killed in the crash.
Specifications (1953 model D35)
Specifications (2009 model G36)
See also
References
- Beechcraft Bonanza G36. Product Analysis. Hawker
Beechcraft Corporation.
- Flying magazine, ibid.
- FLYING Magazine, Vol. 134, No. 8, August
2007, p. 62 "60 Years of Continuous Bonanza Production
- USAF Qu-22
Pave Eagle
- Tradewind Turbines
- GlobalSecurity.org - Parastu
- Payvand - Iranian Air Force Highly Equipped
- Air
& Space Vol. 22, No. 3, August 2007, "A Bonanza
Anniversary", p. 14
- Air & Space, V 22, N 3, p. 14
- Air & Space, V 22, N 3, p. 15
- Air & Space Magazine
- video
- NTSB preliminary report
External links