Soloy Pathfinder 21

The Soloy Pathfinder 21 is a twin-engined, single-propeller, turboprop aircraft. It is a modification by Soloy Aviation Solutions of a Cessna 208 Caravan airframe. The aircraft is essentially a stock Cessna 208 airframe that has been stretched by 72 inches (1.83 m) with structural reinforcement, powered by twin Pratt & Whitney Canada PT6D-114A engines in a side-by-side Dual Pac configuration in place of the original single engine.

Soloy Pathfinder 21
Role Utility aircraft
Manufacturer Cessna/Soloy
Status Uncertified test bed
Number built 1
Developed from Cessna 208 Caravan

Design and development

Soloy modified a Cessna 208 to construct a prototype Pathfinder 21, with its first flight in 1995. The Dual Pac PT6D-114A engine used in the Pathfinder 21 gained its FAA Supplemental Type Certificate in 1997.[1] Soloy was attempting to obtain FAA certification for the aircraft conversion, but after completing over 80% of the certification work, Soloy announced that it was halting the entire program. The CEO explained that the FAA requires aircraft with more than nine passengers to have the airframe meet tougher restrictions required by Federal Aviation Regulation (FAR) Part 25, which is a practical impossibility, since the Cessna 208 does not meet those requirements. This requirement makes marketing the airplane unfeasible, as the expanded passenger cabin is a major reason for the stretch to begin with.[2] The prototype has not flown since 1999.

Specifications

Data from Soloy[3]

General characteristics

  • Crew: 1-2
  • Capacity: 15-19 passengers
  • Length: 46 ft 11 in (14.3 m)
  • Wingspan: 52 ft 1 in (15.88 m)
  • Height: 16 ft 6 in (5.02 m)
  • Wing area: 279.4 sq ft (25.96 m2)
  • Empty weight: 7,300 lb (3,311 kg)
  • Gross weight: 12,000 lb (5,443 kg)
  • Max takeoff weight: 12,410 lb (5,629 kg)
  • Powerplant: 2 × Pratt & Whitney Canada PT6D-114A in a Soloy Dual Pac Combined output twin turboprop, 664.5 hp (495.5 kW) each

Performance

  • Cruise speed: 180 kn (210 mph, 340 km/h)
  • Stall speed: 66 kn (76 mph, 122 km/h)
  • Range: 467.4 nmi (537.9 mi, 865.6 km)
  • Service ceiling: 27,400 ft (8,350 m)
  • Rate of climb: 1,500 ft/min (7.6 m/s)
gollark: Boooooooooring.
gollark: Lispbutmodified is quite a boring esolang.
gollark: Not mathematical "research" though.
gollark: I guess so, ish.
gollark: Examples:* cryptography (CAs can be stepped forward easily but not easily reversed)* procedural generation of stuff (i.e. the cave generation CA I've seen)

See also
  • Cessna 208

References
  1. STC No. SE00482SE
  2. Mike Vines Cessna Caravan Story (Part Two) Archived 2006-12-23 at the Wayback Machine AvBuyer (last accessed April 12, 2007)
  3. "Pathfinder Specs". Soloy Corporation. Retrieved 2006-07-19.
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