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PY-RTY 'Eurynome'

9,652 EnderWiggin  7.4 years ago

The Eurynome is a concept twin engine flying boat powered by GE36 inspired propfans (also known as an open rotor engine) which supplies more than enough thrust to blow your hair back. It took me a very long time to get the shape and balance just right, so I hope you enjoy this build. BTW, the power to weight ratio is an impressive 24.35:1, so ease on the power slowly for takeoff (10-14%).

A General Electric F404 military turbofan was used as the basis for the GE36. The F404 mixed exhaust stream discharged through a turbine which drove two counter rotating stages of 10 and 8 fan blades each (originally 8 and 8). The scimitar shape of the fan rotor blades can operate at speeds up to Mach .75, about 575 mph at sea level. The power turbine was a seven-stage (initially 6-stage) turbine plus inlet and outlet guide vanes. The fourteen turbine blade rows rotated alternate rows in opposite directions. Each stage was a pair of rotors (there were no stators). The counter-rotating turbine ran at half the rpm of a conventional turbine so did not require a reduction gearbox to drive the fan.

General Characteristics

  • Created On Android
  • Wingspan 39.1ft (11.9m)
  • Length 60.4ft (18.4m)
  • Height 12.6ft (3.9m)
  • Empty Weight 4,419lbs (2,004kg)
  • Loaded Weight 5,537lbs (2,511kg)

Performance

  • Power/Weight Ratio 24.35
  • Horse Power/Weight Ratio 0.361
  • Wing Loading 14.1lbs/ft2 (68.7kg/m2)
  • Wing Area 393.7ft2 (36.6m2)
  • Drag Points 7711

Parts

  • Number of Parts 59
  • Control Surfaces 4
  • Performance Cost 355