1972 Beechcraft V35B Bonanza – A GAMI-Equipped Classic That Still Leads the Pack

Few aircraft combine legacy, performance, and modern efficiency as effectively as the 1972 Beechcraft V35B Bonanza. With its signature V-tail design, powerful Continental engine, upgraded Garmin avionics, and the inclusion of GAMIjector™ technology, this V35B offers a compelling balance of speed, handling, and long-range capability. Registered as N1628W and serial number D-9366, this aircraft represents a strong example of the enduring value of Beechcraft engineering combined with targeted modern upgrades for precision and efficiency.

As this Bonanza heads to auction from August 27 to September 3, 2025, pilots looking for a dependable, IFR-certified cross-country platform with enhanced engine performance would be hard-pressed to find a better option. Below, we explore the aircraft’s storied history, performance specs, unique features like GAMI injectors, and detailed auction information.

A Brief History of the Beechcraft Bonanza

When Beech Aircraft Corporation launched the Bonanza in 1947, it introduced an entirely new era in general aviation. The Bonanza was not just another single-engine piston—it was the most technologically advanced GA aircraft of its time. With its distinctive V-tail design, all-metal construction, and high-performance engine, the original Bonanza combined speed and luxury in a way that had not been done before.

Over the decades, the Bonanza line continued to evolve. By the time the V35B was introduced in the early 1970s, Beech had refined the airframe to accommodate more weight, improve control harmony, and boost comfort. The V35B represents the final evolution of the V-tail line before production ceased in 1982.

More than 17,000 Bonanzas of all types have been built, making it one of the longest-running and most respected models in general aviation history. Whether used for business, family travel, or training, the Bonanza’s reputation for reliability, comfort, and performance is well established.

The Role of the V35B in General Aviation

The Bonanza V35B is more than a recreational flyer—it is a serious cross-country machine that comfortably seats four, cruises at over 160 knots, and offers extended range. Pilots often choose the Bonanza for its:

• High-performance cross-country flying
  
• IFR training and utility
  
• Business and personal travel
  
• Owner-operator missions requiring range and load flexibility
  

Known as a “doctor killer” in myth more than reality, the Bonanza rewards precision and discipline. For seasoned aviators or technically inclined professionals, this aircraft offers unmatched control feel, responsiveness, and efficiency in its class.

Spotlight on GAMI Injectors: Efficiency Meets Engineering

Among the standout upgrades on N1628W is the installation of GAMIjector fuel injectors—a significant improvement for those who value engine smoothness, fuel efficiency, and balanced operations. Designed by General Aviation Modifications Inc. (GAMI), these injectors are engineered to balance the fuel/air mixture across all cylinders of the Continental IO-520 engine.

Why GAMI Injectors Matter:

• Better Lean-of-Peak Operation: GAMI injectors allow precise lean-of-peak operation, reducing fuel burn without compromising power.
  
• Smoother Engine Performance: Balanced cylinder performance reduces vibration and extends engine longevity.
  
• Reduced Operating Costs: Lower fuel consumption and improved engine health make GAMI-equipped aircraft more economical to operate.
  
• Enhanced Safety: Smooth, predictable engine operation gives the pilot greater confidence in all phases of flight.
  

When pilots hear “GAMI-equipped,” they understand this aircraft was flown by an owner who paid attention to performance and engine management. It’s not just an upgrade—it’s a sign of stewardship.

Airframe Overview

This 1972 Beechcraft V35B Bonanza, N1628W, is a well-cared-for aircraft with 2,945 hours total time on the airframe. With an annual inspection completed in March 2025, it is current, airworthy, and ready for dispatch.

The airframe specs speak for themselves:

• Fuel Capacity: 50 gallons total, 44 usable
  
• Cruise Speed: 163 knots
  
• Range: 750 nautical miles
  
• Stall Speed: 53 knots with flaps, 64 knots without
  
• Useful Load: 1,196.28 pounds
  

This airframe delivers strong utility, ideal for medium-range IFR missions with passengers and baggage. The V-tail Bonanza’s smooth handling and aerodynamic efficiency make it a joy to hand-fly, while the upgraded avionics enhance capability in controlled airspace.

Engine: Continental IO-520-BA23

Powering the Bonanza V35B is a Continental IO-520-BA23, a six-cylinder, fuel-injected engine producing 285 horsepower. This powerplant, paired with GAMI injectors, delivers reliable performance with precision fuel management.

• Serial Number: 822839-R
  
• Time Since Factory Rebuild: 887 hours
  
• Overhauled By: Teledyne Continental Motors (April 21, 2003)
  

The IO-520 is a workhorse engine known for its longevity, smooth power delivery, and strong support ecosystem. It provides excellent climb rates and consistent cruise performance, especially when paired with GAMI injectors for optimized fuel flow.

Propeller: Hartzell PHC-C3YF-1R

This Bonanza is equipped with a Hartzell three-blade, constant-speed aluminum propeller, providing smoother operation and better climb performance compared to its two-blade counterparts.

• Design Number: F8468A6R
  
• Hub Serial Number: EE1210
  
• Blades: Serial Numbers C8201, C9718, C9733
  
• Time Since Overhaul: 1,583 hours
  
• Overhaul Date: July 8, 1988
  

Though it has been some time since the last overhaul, the propeller remains serviceable and effective in its current configuration, giving prospective buyers an opportunity for a mid-cycle refresh based on their usage and mission profile.

Avionics: Garmin IFR Suite + More

This Bonanza has been upgraded to modern IFR standards with a suite of Garmin avionics that make it ready for today’s demanding airspace and navigation requirements.

Installed Avionics:

• Garmin GTN 750 (GPS/Nav/Com touchscreen)
  
• Garmin GNS 430
  
• Garmin GMA 340 Audio Panel
  
• Garmin GTX 345 Transponder (ADS-B Out)
  
• Century III Autopilot (Does not capture GPS)
  
• AuRACLE CRM2100 Engine Analyzer
  
• 3M WX-10A Stormscope
  
• Dynon Backup Instrument
  

Additional Instruments:

• Dual CDIs
  
• Thermometer, Chronometer
  
• Full six-pack: Airspeed, Turn Coordinator, Artificial Horizon, Altimeter, VSI
  
• LRS Digital Fuel Gauge
  
• RAM Mount
  
• Compass, OBS
  

This setup offers an excellent mix of legacy and digital tech, with dual GPS navigation, weather, traffic, and complete engine monitoring. While the Century III autopilot doesn’t track GPS, it remains a dependable lateral-control system.

Exterior: Classic Bonanza Style

The aircraft features a light blue base paint with white and dark blue accent striping—a timeless Bonanza scheme that still turns heads on the ramp. The paint is in overall good condition, with minor clear coat peeling on the right wing leading edge, which is cosmetic and easily addressed.

For a 1972 airframe, the paint presents well and reflects pride of ownership.

Interior: Functionally Refined

Inside, the cabin is both comfortable and practical:

• Seats: Tan and black vinyl
  
• Side Panels: Tan with black accents
  
• Carpet: Blue
  
• Seatbelts: Blue
  

The interior offers seating for four and is in good shape overall. The only noted flaw is a small upholstery issue on the entry door’s bottom edge, which is cosmetic. The presence of shoulder harnesses adds a layer of safety often missing in vintage aircraft.

Additional Features

The Bonanza comes with several enhancements beyond the standard:

• GAMI Injectors (highlighted feature)
  
• Rosen Sun Visors
  
• Shoulder Harness Kit
  
• IFR Certified
  
• No Known Corrosion
  
• No Known Incidents
  

These extras show that the aircraft was upgraded with both performance and safety in mind—factors that reflect directly on its value and long-term appeal.

Auction Information: Airspace Auctions

This aircraft will be available through Airspace Auctions during the following window:

• Auction Dates: August 27 to September 3, 2025
  
• Starting Bid: $85,000
  
• Buyer Premium: 6%
  
• Deposit Required: $4,000
  
• Location: Greenup, Kentucky
  

Prospective buyers can inspect the aircraft ahead of the auction, with documentation and bidding available online. Given its avionics, GAMI upgrade, IFR cert, and solid condition, this Bonanza represents excellent value in its category.

Final Thoughts: Why This V35B Bonanza Stands Out

In the world of legacy general aviation aircraft, not all Bonanzas are created equal. N1628W distinguishes itself with the following:

• GAMI Injectors: A key performance and efficiency upgrade
  
• Garmin IFR Suite: Modern situational awareness
  
• Strong Engine and Airframe Hours: Ready to fly with confidence
  
• No Known Corrosion or Incidents: Clean history matters
  
• Practical and Comfortable Interior: Four-seat utility with thoughtful safety upgrades
  

Whether you’re an owner-operator looking for a reliable cross-country IFR platform, or a Bonanza enthusiast hunting for a well-equipped V-tail example, this aircraft checks all the right boxes. The addition of GAMI injectors puts it over the top—adding performance, economy, and engine longevity to a design that was already ahead of its time.

Don’t Miss Your Chance

This GAMI-injected 1972 Beechcraft Bonanza V35B is a smart buy for pilots who want a balance of classic character and modern capability. Backed by Garmin avionics, strong mechanicals, and a clean interior, it’s ready to fly today—and priced to move.

🔗 Register to bid or learn more at Airspace Auctions
📅 Auction runs August 27–September 3, 2025
💰 Starting bid: $85,000 | Deposit: $4,000 | Buyer Premium: 6%

Specifications and/or descriptions are provided as introductory information only and do not constitute representations or warranties. Verification of specifications remains the sole responsibility of the purchaser.