File Name & Location
07/04/2015, Page 1
STATUS OF F/A - 18 E/F NLG RIG
TESTING
File Name & Location
07/04/2015, Page 2
EXAMPLE
• F/A 18 E/F NLG FOR HCAT.
File Name & Location
07/04/2015, Page 3
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
File Name & Location
07/04/2015, Page 4
EXAMPLE
• F/A 18 E/F NLG DRAG BRACE (74A430804)
File Name & Location
07/04/2015, Page 5
EXAMPLE
F/A 18 E/F PISTON HEAD DRAG BRACE ( P/N 74A430809)
File Name & Location
07/04/2015, Page 6
STATUS OF OF F/A-18E/F NLG RIG TESTING
ID
1
Task Name
CHCAT F/A-18E/F NLG Test Program
2
F/A-18E/F Drag Brace Testing
3
Duration
805 days
Start
% Complete
Fri 5/12/00
60%
2000
2001
2002
Finish
Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3
Thu 6/12/03
691 days
Fri 5/12/00
58%
Fri 1/3/03
Receive T est Article
0 days
Mon 12/18/00
0%
Mon 12/18/00
4
T est Procedures
0 days
Fri 8/11/00
100%
Fri 8/11/00
5
Purchase & Install Control System
16 wks
Fri 5/12/00
100%
T hu 8/31/00
6
T est Set Up for Fatigue Axial Load
3 wks
T ue 12/12/00
100%
Mon 1/1/01
7
Calibration of Instrumentation
12 days
T ue 1/2/01
100%
Wed 1/17/01
8
Instrumentation Setup
3 wks
T hu 1/18/01
100%
Wed 2/7/01
9
Perform 20% Fatigue
3 wks
T hu 2/8/01
100%
Wed 2/28/01
10
Strip, Inspect, ATP
2 wks
T hu 3/1/01
100%
Wed 3/14/01
11
Perform 20% Endurance
3 wks
T hu 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
T hu 4/19/01
10%
Fri 11/8/02
16
T est Report
8 wks
Mon 11/11/02
0%
Fri 1/3/03
File Name & Location
07/04/2015, Page 7
STATUS OF F/A - 18 E/F NLG RIG TESTING
ID
17
Task Name
F-18 E/F Full Scale Fatigue Test
Duration
739 days
Start
% Complete
Finish
Mon 8/14/00
62%
Thu 6/12/03
18
Tes t Procedures
0 day s
Wed 8/30/00
100%
Wed 8/30/00
19
Purc hase & Ins tall Control Sy stem
16 wks
Mon 8/14/00
100%
Fri 12/1/00
20
Purc hase Loading Ac tuators
12 wks
Fri 12/15/00
100%
Thu 3/8/01
21
Purc hase Serv o Valv es
12 wks
Fri 12/15/00
100%
Thu 3/8/01
22
Purc hase Load Cells
12 wks
Fri 12/15/00
100%
Thu 3/8/01
23
Design Tes t Rig Frame As sembly
7 wk s
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
100%
Wed 2/21/01
26
Design Tes t Rig Dummy Wheels
27
Manufacture of Dummy Wheels
28
Receiv e Test Article
29
Tes t Rig Set-Up
30
31
6 wk s
Thu 11/30/00
Mon 1/1/01
100%
Fri 2/9/01
13.8 wks
Mon 2/12/01
100%
Thu 5/17/01
0 day s
Wed 8/15/01
100%
Wed 8/15/01
12 days
Fri 12/21/01
90%
Mon 1/7/02
Control Sys tem Set U p
3 wk s
Fri 1/11/02
80%
Thu 1/31/02
Ins trumentation and C alibrations
3 wk s
Fri 2/1/02
100%
Thu 2/21/02
32
Fatigue Tes ting 20%
8 wk s
Fri 2/22/02
0%
Thu 4/18/02
33
Ins pection
4 wk s
Fri 4/19/02
0%
Thu 5/16/02
34
Fatigue Tes ting 40%
8 wk s
Fri 5/17/02
0%
Thu 7/11/02
35
Ins pection
4 wk s
Fri 7/12/02
0%
Thu 8/8/02
36
Fatigue Tes ting 60%
8 wk s
Fri 8/9/02
0%
Thu 10/3/02
37
Ins pection
4 wk s
Fri 10/4/02
0%
Thu 10/31/02
38
Fatigue Tes ting 80%
8 wk s
Fri 11/1/02
0%
Thu 12/26/02
39
Ins pection
4 wk s
Fri 12/27/02
0%
Thu 1/23/03
40
Fatigue Tes ting 100%
8 wk s
Fri 1/24/03
0%
Thu 3/20/03
41
Ins pection
4 wk s
Fri 3/21/03
0%
Thu 4/17/03
42
Report
8 wk s
Fri 4/18/03
0%
Thu 6/12/03
0
Qtr 3 Qtr 4 Qtr 1
2001
2002
Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3 Qtr 4
File Name & Location
07/04/2015, Page 8
Drag Brace Assembly Test
• Retract - Extend Endurance
• Ground Load Fatigue
Drag Brace Assembly Test
File Name & Location
07/04/2015, Page 9
Retract - Extend Endurance
30000
25000
20000
15000
10000
5000
0
Accumulated no
of cycles 14950
Required no of
cycles 29880
Drag Brace Assembly Test
Ground Load Fatigue
File Name & Location
07/04/2015, Page 10
12000
10000
8000
6000
4000
2000
0
Accumulated no of
cycles 6000
Required no of
cycles 12000
File Name & Location
07/04/2015, Page 11
NLG Fatigue Test
• test frame installation ongoing
• test gear assembly completed
File Name & Location
07/04/2015, Page 12
FLIGHT TRIALS IN EXISTING DESIGN
File Name & Location
07/04/2015, Page 13
EXAMPLE
• CL601 MLG SHOCK STRUT PISTON (17114) AND
ATTACHMENT PINS(P/N17207)
File Name & Location
07/04/2015, Page 14
EXAMPLE
• BOMBARDIER CL601RJ MAIN LANDING GEAR PISTON
P/N 17114
BEFORE INSTALLATION
File Name & Location
EXAMPLE
07/04/2015, Page 15
• BOMBARDIER CL601RJ MAIN LANDING GEAR PISTON
P/N 17114 AFTER 1764 CYCLES / 2203 HRS
File Name & Location
07/04/2015, Page 16
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)
File Name & Location
07/04/2015, Page 17
Attachment pin chrome plated
P/N 17207-1
File Name & Location
07/04/2015, Page 18
Attachment pin after first “A”check 500hrs
P/N 17207-1 HVOF coated
File Name & Location
07/04/2015, Page 19
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
File Name & Location
07/04/2015, Page 20
Attachment pin after 1764 cycles and 2203 hrs
P/N 17207-1 HVOF coated
File Name & Location
07/04/2015, Page 21
Visual inspection of attachment pin after
1764 cycles and 2203 hrs
P/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
File Name & Location
07/04/2015, Page 22
CF-18A/B MLG AXLE LEVER ASSEMBLY
new applications
File Name & Location
07/04/2015, Page 23
CF-18A/B MLG AXLE LEVER ASSEMBLY
P/N 74A410509-2004 - new application
File Name & Location
07/04/2015, Page 24
CF-18A/B MLG AXLE LEVER ASSEMBLY
P/N 74A410509-2004 - new application