Beechcraft Bonanza V35B

Beech introduced the Model 35 Bonanza in 1947 with the V-tail configuration that would define the airplane for 35 years. The original Bonanza used Continental E-185 engines through various sub-variants and gradually evolved through Models A35 (1949), B35 (1950), and onward through the alphabet. The Continental IO-470 replaced the early E-series engines in 1956. The IO-520 family arrived in the late 1960s.

The V35B specifically was introduced in 1970 with the IO-520-BA at 285 hp. Production iterated through model years with refinements to interior, instrument panel, and equipment. Beech sold both the V35B and the straight-tail F33A in parallel through the 1970s and into 1982. Mooney's V-tail Bonanza AD compliance history is a meaningful ownership consideration: the airplane had documented in-flight structural failures in the 1980s that resulted in AD-mandated cuff installation on the ruddervators.

Beech ended V35B production in 1982 as the V-tail design lost favor relative to the straight-tail F33A and the larger A36. The V-tail's combination of complex AD compliance, ruddervator inspection requirements, and slightly degraded cross-country handling led most buyers to prefer the straight-tail variants. The V35B remains in fleet operation with active enthusiast support through American Bonanza Society.

The V35B cruises at about 175 KTAS at 75% power, burning 14 gph of 100LL. At long-range cruise (65%), the airplane drops to about 160 KTAS on 12 gph. The V35B is the fastest Bonanza variant in its era due to the slightly less drag of the V-tail compared to the F33A's conventional tail. The performance advantage is modest (about 3 to 5 knots) and is offset by the V-tail's more complex handling and inspection requirements.

Useful load on a V35B is about 1,100 to 1,200 pounds. Full fuel (74 gallons usable) leaves about 660 to 760 pounds for people and bags. Four adults of typical weight plus moderate luggage fit within gross with reasonable loading. The V35B cabin is comparable to other Bonanzas but the V-tail provides slightly less luggage room behind the rear seats. Range with reserves is about 850 nm at long-range cruise.

The Continental IO-520-BA is the engine on every V35B. Six-cylinder, horizontally opposed, fuel-injected, direct-drive piston rated at 285 hp at 2,700 RPM. Continental's published TBO is 1,700 hours (1,900 hours for serial number 1006000 and later) per Continental Service Information Letter SIL 98-9E. The IO-520-BA shares the light-crankcase history of other IO-520 variants.

Field overhauls at Western Skyways, Gann Aviation, or other reputable Continental shops run $48,000 to $62,000 in 2026 prices. The IO-520 family case-crack history makes pre-buy case inspection essential. Many V35Bs have had case repair or upgrade work as part of overhauls. Modern IO-550 STC conversions add about $15,000 to $25,000 over a straight IO-520 overhaul and deliver 15 additional horsepower with improved engine economics.

Oil consumption on a healthy IO-520-BA runs about 0.4 to 0.6 quarts per hour. The engine reaches TBO routinely when operated regularly. Cylinder work at top-overhaul intervals (around 1,100 to 1,400 hours on hard-flown engines) runs $4,000 to $5,500 per cylinder. The Hartzell three-blade or McCauley three-blade constant-speed propeller requires overhaul concurrent with the engine at $3,500 to $5,500.

Plan on $230 to $320 per flight hour at 100 hours a year of utilization, all-in. The V35B's operating cost reflects the 285 hp Continental and the Beech build quality. Fuel and oil run about $80 to $100 per hour at 14 gph and $5.50 to $7 for 100LL. Engine overhaul reserve is $25 to $33 per hour. Prop overhaul reserve adds $2.00 to $3.00 per hour. Airframe maintenance reserve is $35 to $55 per hour due to gear-system maintenance, V-tail AD compliance, and Beech parts pricing.

Annual fixed costs (hangar, insurance, annual inspection) add another $70 to $130 per hour at 100 hours a year of utilization. Insurance on the V35B is moderate. First-time Bonanza owners pay $3,500 to $6,500 a year typically. Established Bonanza pilots with 200+ hours in type pay $2,500 to $4,500.

Acquisition cost in mid-2026: A V35B with mid-time engine and steam-gauge panel runs $115,000 to $165,000. A V35B with fresh engine and modern Garmin panel runs $165,000 to $230,000. IO-550 STC-converted aircraft trade at $20,000 to $40,000 premiums over comparable original-engine examples.

American Bonanza Society membership is essential. Annual dues run about $80. ABS provides type-specific pre-buy guidance, AD compliance tracking (V-tail ruddervator cuff AD specifically), engine overhaul shop recommendations, and the Bonanza/Baron Pilot Proficiency Programs (BPPP) often required by insurance underwriters.