Project Description

This Plane is ON LOAN to the Mid America Flight Museum

MPH

355

SEATS

6

On Mark A-26

Class:  Six Seat, Twin Engine Executive Transport

National Origin: United States

Manufacturer: On Mark Engineering

First Flight: 1961

Primary User: Executive Operators

Number Built: 8

After WWII Douglas A-26 Invaders were sought after airframes for their speed. Dianna Converse Cyrus purchased Invader 44-34766 from surplus aircraft dealer Charles Babb for the purpose of racing and record setting. She raced NX67807 in the 1947 Bendix race as “Huntress.” The airplane was later sold and was converted to a high speed corporate transport. On Mark Engineering Company in Van Nuys, California converted A-26s to Marketeer and Marksman configuration. This aircraft became an On Mark Marketeer, N1243, and flew with the Superior Oil Company. In 1995 it was restored as a Marketeer and came to the Mid America Flight Museum in the Fall of 2019.

General characteristics

  • Crew: Two
  • Capacity: five passengers
  • Length: 53 ft 10 in (16.41 m)
  • Wingspan: 71 ft 6 in (21.79 m)
  • Height: 18 ft 16 in (5.64 m)
  • Wing area: 540 ft² (50 m²)
  • Empty weight: 25,200 lb (11,429 kg)
  • Max. takeoff weight: 35,000lb (15,876 kg)
  • Powerplant: 2 × Pratt & Whitney R-2800-CB16/17 “Double Wasp” radials, 2,500 hp (1,500 kW) each

Performance

  • Maximum speed: 365 mph (317 knots, 587 km/h)
  • Range: 2,600 miles (2,260 nmi, 4,183 km)
  • Service ceiling: 12,000 ft (3,657.6 m)
  • Rate of climb: 1,700 ft/min (8.3 m/s)
  • Wing loading: 64.8 lb/ft² (316.55 kg/m²)
  • Power/mass: 0.143 hp/lb (106.5 W/kg)