Flight Testing the ATF Prototypes. YF-23 Paul Metz (F) YF-22 Mark Shackelford (M)

Transcription

1 DRAFT 15 Oct 13

2 Refle tions Flight Testing the ATF Prototypes YF-23 Paul Metz (F) YF-22 Mark Shackelford (M)

3 Not Your Typical Competition Risk Reduction for Signature, Avionics, Aero Design, and Propulsion Contractors had lead; Air Force provided safety oversight and test resources Core team cross-briefed; Most of test team detailed to contractor Five pilots: three contractor, one AF test pilot, one AF OT pilot No head-to-head competition Submitted sealed envelope performance predictions before flight test started Flight test results compared to predictions Used by AF To Judge Credibility Of Predictive Processes Overall Objective: Find the Best Team to Build the Best Advanced Tactical Fighter

4 YF-22 DEM/VAL FLIGHT TEST

5 EVOLUTION OF STEALTH

6 DEM VAL TEST OBJECTIVES Ship One Ship Two Supercruise Agility Weapons Bay Environment Missile Launches High Angle of Attack Loads Operational Factors

7 FLIGHT CONTROL SURFACES LEADING EDGE FLAPS SPEED BRAKE RUDDERS HORIZONTAL STABILATORS AILERONS THRUST VECTORING NOZZLES FLAPERONS

8 THRUST VECTORING IN ACTION

9 COCKPIT FEATURES Color Liquid Crystal Displays Finger-on-Glass (FOG) Controls Side Stick Articulating Ejection Seat Tactical Life Support System (TLSS)

10 TACTICAL LIFE SUPPORT SYSTEM (TLSS)

11 Our Cheerful Staff Is Ready To Fly For You! Jon Beesley Tom Morgenfeld Maj Mark Shackelford Dave Ferguson Lt Col Willie Naigle

12 YF-22 FLIGHT HISTORY

13 YF-22 FLIGHT STATISTICS YF-22A No. 1 GE YF120 Engines Total Flights 43 Total Flight Hours 52.8 Maximum AOA/Minimum Airspeed 60 deg/82kcas Maximum Mach >2.00 Maximum Altitude 50,000 ft. YF-22A No. 2 P&W YF119 Engines Total Flights 31 Total Flight Hours 38.8 Maximum AOA/Minimum Airspeed 20 deg/135 KCAS Maximum Mach Number 1.81 Maximum Altitude 45,000 ft.

14 FAMILY PORTRAIT

15

16 SLEEPING WITH THE ENEMY

17 YF-23 DEM/VAL FLIGHT TEST Paul Metz NAD Jim Sandberg NAD Bill Lowe MACAIR MAJ Ron Taco Johnston AFFTC MAJ Con Thueson AFOTEC

18

19

20 Flight Control Surfaces LEADING EDGE FLAPS RUDDERVATORONS HORIZONTAL STABILATORS AILERONS + FLAPERONS = SPEED BRAKE

21 Picture Window Effect Flush Ports (No FT Boom) Gausian Shape Bread Loaves

22

23 YF-23 Planform-Profile

24 Tandem Wing

25 Flight Controls Laws Alpha/G-Command Low/High Speeds Pitch,Yaw and Roll Hold Feet-on-floor Engine Out No Pilot Input = Hold Attitude Integrated Engine Mode (IEM)

26

27

28 YF-23 FLIGHT STATISTICS YF-23A No. 1 P&W YF119 Engines (YF-22) (GE YF120) Total Flights 34 (43) Total Flight Hours 44.3 (52.8) Maximum AOA/Minimum Airspeed 25 deg (60 deg) Maximum Mach 1.8 (>2.00) Maximum Altitude 50,050 ft. (50,000 ft.) YF-23A No. 2 GE YF120 Engines (P&W YF119) Total Flights 16 (31) Total Flight Hours 21.6 (38.8) Maximum AOA/Minimum Airspeed 20 deg (20 deg) Maximum Mach Number 1.72 (1.81) Maximum Altitude 50,000 ft. (45,000 ft.)

29 YF-23 Flight History

30 Overall Results GREAT Flight Control Laws Subcutaneous Autopilot No Surprises Level Accels and Turn Perf Formation and AAR Engines Superb but..

31 Lesson Learned Be Prepared For the Unexplainable (Apollo 13 Phenomenon) Monitor All Data ALL THE TIME If It Isn t Making Sense--STOP IMMEDIATELY

32 Gausian The Shaping Apollo 13 Phenomenon

33

34 How it Went Outstanding performance by two tremendous teams Both teams demonstrated they could design, build and safely fly LO configured aircraft and deliver outstanding performance and handling qualities Two new designs, and two new engines flew without incident hours in 3 months Both teams brought outstanding teams and aircraft design to make the ATF a success

35

36

37 Dedicated to the Memory of Dave Ferguson (F) YF-22 Chief Test Pilot

38 Conventional Control Actuators Low Speed Requirement: LARGE Throws + Small Forces = Long, Skinny Actuator

39 Conventional Control Actuators High Speed Requirement: Small Throws + Large Forces = Short, Fat Actuator

40 The VAVR Actuators High Speed Requirement: Small Throws + Large Forces = 2 Chambers Pressurized Low Speed Requirement: Large Throws + Small Forces = 1 Chamber Pressurized

41 Supercruise Performance YF-22s PAV-2 PAV-1 I****************I YF-23s PAV-1 PAV-2 l****************i Mach Number