file name & location 12/05/2015, page 1 status of f/a - 18 e/f nlg rig testing

File Name & Location

18/04/23,

STATUS OF F/A - 18 E/F NLG RIG TESTING


18/04/23,

EXAMPLE

• F/A 18 E/F NLG FOR HCAT.


18/04/23,

List of WC-Co-Cr coated parts in NLG F/A-18E/F

• Drag Brace Assembly• 74A430503-2001 Pin Drag Brace, Shock Strut• 74A430802-2003 Pin Trunnion, Drag Brace• 74A430804-2007 Piston Drag Brace• 74A430809-2007 Piston Head Drag Brace• NLG Assembly• 74A430601-2003 Cylinder Assembly Shock Strut• 74A430602-2003 Piston Shock Strut• 74A430603-2001 Pin, Torque Arm Apex Shock Strut• 74A430607-2005 Pin, Torque Arm• 74A430609-2001 Pin-Trunion, Shock Strut


18/04/23,

EXAMPLE

• F/A 18 E/F NLG DRAG BRACE (74A430804)


18/04/23, EXAMPLE

F/A 18 E/F PISTON HEAD DRAG BRACE ( P/N 74A430809)


18/04/23,

STATUS OF OF F/A-18E/F NLG RIG TESTING

ID Task Name Duration Start % Complete Finish

1 CHCAT F/A-18E/F NLG Test Program 805 days Fri 5/12/00 60% Thu 6/12/03

2 F/A-18E/F Drag Brace Testing 691 days Fri 5/12/00 58% Fri 1/3/03

3 Receive Test Article 0 days Mon 12/18/00 0% Mon 12/18/00

4 Test Procedures 0 days Fri 8/11/00 100% Fri 8/11/00

5 Purchase & Install Control System 16 wks Fri 5/12/00 100% Thu 8/31/00

6 Test Set Up for Fatigue Axial Load 3 wks Tue 12/12/00 100% Mon 1/1/01

7 Calibration of Instrumentation 12 days Tue 1/2/01 100% Wed 1/17/01

8 Instrumentation Setup 3 wks Thu 1/18/01 100% Wed 2/7/01

9 Perform 20% Fatigue 3 wks Thu 2/8/01 100% Wed 2/28/01

10 Strip, Inspect, ATP 2 wks Thu 3/1/01 100% Wed 3/14/01

11 Perform 20% Endurance 3 wks Thu 3/15/01 100% Wed 4/4/01

12 Strip, Inspect, ATP 2 wks Mon 5/28/01 100% Fri 6/8/01

13 First Life Completion 32 wks Mon 6/11/01 100% Fri 1/18/02

14 Strip inspection 6 wks Mon 1/21/02 0% Fri 3/1/02

15 Second Life Completion 40 wks Thu 4/19/01 10% Fri 11/8/02

16 Test Report 8 wks Mon 11/11/02 0% Fri 1/3/03

Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 32000 2001 2002


18/04/23,

STATUS OF F/A - 18 E/F NLG RIG TESTING

ID Task Name Duration Start % Complete Finish

17 F-18 E/F Full Scale Fatigue Test 739 days Mon 8/14/00 62% Thu 6/12/03

18 Test Procedures 0 days Wed 8/30/00 100% Wed 8/30/00

19 Purchase & Install Control System 16 wks Mon 8/14/00 100% Fri 12/1/00

20 Purchase Loading Actuators 12 wks Fri 12/15/00 100% Thu 3/8/01

21 Purchase Servo Valves 12 wks Fri 12/15/00 100% Thu 3/8/01

22 Purchase Load Cells 12 wks Fri 12/15/00 100% Thu 3/8/01

23 Design Test Rig Frame Assembly 7 wks Mon 11/13/00 100% Fri 12/29/00

24 Manufacture of Test Frame 12 wks Mon 1/1/01 100% Fri 3/23/01

25 Manufacture of Bed Plate 12 wks Thu 11/30/00 100% Wed 2/21/01

26 Design Test Rig Dummy Wheels 6 wks Mon 1/1/01 100% Fri 2/9/01

27 Manufacture of Dummy Wheels 13.8 wks Mon 2/12/01 100% Thu 5/17/01

28 Receive Test Article 0 days Wed 8/15/01 100% Wed 8/15/01

29 Test Rig Set-Up 12 days Fri 12/21/01 90% Mon 1/7/02

30 Control System Set Up 3 wks Fri 1/11/02 80% Thu 1/31/02

31 Instrumentation and Calibrations 3 wks Fri 2/1/02 100% Thu 2/21/02

32 Fatigue Testing 20% 8 wks Fri 2/22/02 0% Thu 4/18/02

33 Inspection 4 wks Fri 4/19/02 0% Thu 5/16/02









42 Report 8 wks Fri 4/18/03 0% Thu 6/12/03

Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3 Qtr 4

0 2001 2002


18/04/23,

Drag Brace Assembly Test

• Retract - Extend Endurance

• Ground Load Fatigue


18/04/23, Drag Brace Assembly Test

Retract - Extend Endurance

0

5000

10000

15000

20000

25000

30000

Accumulated noof cycles 14950

Required no ofcycles 29880


18/04/23, Drag Brace Assembly TestGround Load Fatigue

0

2000

4000

6000

8000

10000

12000

Accumulated no ofcycles 6000

Required no ofcycles 12000


18/04/23,

NLG Fatigue Test

• test frame installation ongoing

• test gear assembly completed


18/04/23, FLIGHT TRIALS IN EXISTING DESIGN


18/04/23,

EXAMPLE

• CL601 MLG SHOCK STRUT PISTON (17114) AND ATTACHMENT PINS(P/N17207)


18/04/23, EXAMPLE

• BOMBARDIER CL601RJ MAIN LANDING GEAR PISTON P/N 17114 BEFORE INSTALLATION


18/04/23, EXAMPLE

• BOMBARDIER CL601RJ MAIN LANDING GEAR PISTON P/N 17114 AFTER 1764 CYCLES / 2203 HRS


18/04/23,

VISUAL INSPECTION RESULTS

• No evidence of seal leakage• HVOF coating in good condition with slight

discoloration at wow static sealing circumference• There was no abnormal bearing wear• Rod seal indicates some wear (TBD)


18/04/23,

Attachment pin chrome plated P/N 17207-1


18/04/23,

Attachment pin after first “A”check 500hrsP/N 17207-1 HVOF coated


18/04/23, Visual inspection of attachment pin after first “A”check 500hrs

P/N 17207-1 HVOF coated

• Some evidence of material transfer from mating bushing (Be-Cu)

• Dry film lube worn off indicating lack of lubrication

• There was no indication of coating wear or distress


18/04/23,

Attachment pin after 1764 cycles and 2203 hrsP/N 17207-1 HVOF coated


18/04/23, Visual inspection of attachment pin after 1764 cycles and 2203 hrsP/N 17207-1 HVOF coated

• Coating shows slight wear marks which can be cleaned up within drawing requirements

• There was some material transfer from mating spherical bushing (Be-Cu)

• Dry film lubricant partially worn off• No evidence of corrosion or pitting


18/04/23, CF-18A/B MLG AXLE LEVER ASSEMBLYnew applications


18/04/23,

CF-18A/B MLG AXLE LEVER ASSEMBLYP/N 74A410509-2004 - new application

file name & location 12/05/2015, page 1 status of f/a - 18 e/f nlg rig testing

Documents

hrs slide

installation slide

endurance slide

distress slide

pitting slide

shock strut slide

brace 74a430804 slide

brace pn 74a430809 slide