Vertical Take Off - PowerPoint PPT Presentation

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Vertical Take Off

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Conversion (Limited Corridor) Rotating Component RCS. Increased Empty ... Conversion (Limited Corridor) High Empty Weight. Complexity (3 Vectored Thrusters) ... – PowerPoint PPT presentation

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Title: Vertical Take Off


1
Vertical Take Off Landing (VTOL) Aircraft -- A
Comparison
2
Lift / Propulsion / Control Approaches For VTOL
Aircraft (General)
For Shaft-Driven VTOL Aircraft, Need At Least Two
Thrusters

gt One Main, One Anti-Torque


gt Two Equal Size (Opposite Rotation)

gt Thruster Tilting

gt Exhaust Deflection
3
Methods of Transition for Various V/STOL Concepts
4
VTOL Concepts
5
PURE HELICOPTER
6
THERE ARE MAJOR PROBLEMS WITH ADDING A WING
7
COMPOUND HELICOPTER (Fixed Thruster)
8
COMPOUND HELICOPTER (Advancing Blade Concept)
9
COMPOUND HELICOPTER (Vectored Thruster - Open
Prop)
10
COMPOUND HELICOPTER (Vectored Thruster - Ducted
Prop)
11
CANARD ROTOR WING
12
TILT ROTOR
13
TILT WING
14
TILTING DUCTED FANS
15
FAN-IN-WING
16
VECTORED JET LIFT
17
Summary
  • VTOL Aircraft Are Inherently More Complex Than
    Conventional Take-Off and Landing (CTOL) Aircraft
  • Mechanization Required to Change Direction of
    Thrust With Respect to Aircraft
  • Additional Controllers (e.g., Collective Stick,
    Conversion)
  • Best VTOL Concept Only Has Meaning in the
    Context of the Mission to be Performed
  • What Do You Need Most? Hover Time, Fast Cruise,
    Long Range, . . . ?
  • What Do You Have Available? Runway, . . . ?

18
Comparison of Different Types of V/STOL Platforms
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