Bell OH-58A - Page 87

TM 55-1520-22 8-BD
Table 4-5. Damage Limits Forward Fuse lage — Condition II (Cont)
DAMAGE LIMITS
LOCATION
CAP / FLANGE SKIN / WEB
COMPONENT /
MEMBER
FS WL BL
ELEMENT
CD’ CL’ N WL’ N
NOTES / CAUTIONS
(D’=N x CL) (D’=N x WL)Cabin Roof Beam
120.90
67.92-
71.96
3.00L-
3.00R
Bulkhead Skin and
Doublers
2.75 5
80.46-
130.00 67.92
3.00L-
3.00R
Bottom Skin and Access
Cover
1.00 5
Lower Cabin Shell 73.18-
113.00
20.00-
25.25
18.40L&R-
Outboard
Radius and Edge of
Honeycomb Panel
1.50 5
73.18-
113.00 20.00
18.40L
18.40R
Honeycomb Panel
10.00 5
No Damage Within 3”
Radius of Inserts
113.00-
130.00
20.00-
54.65
Honeycomb Panel
10.00 5
No Damage Within 3”
Radius of Inserts
96.44 20.00 Splice
1.50 3.00 5
36.00-
130.00
20.00-
54.65
Frames, Angles Stiffeners
0.75 1.50 5
Upper Cabin Roof
Shell
54.48-
82.86
Top Skin
4.50 5
82.86-
125.00
Honeycomb Panels
4.50 5
120.40-
130.00
14.12L&R-
Outboard
Honeycomb Panels
3.00 5
125.00-
130.00
14.12L-
14.12R
Titanium Panel
3.00 5
54.48-
130.00
Flanges, Formers,
Stiffeners, Supports
0.75 1.50 5
Landing Gear 73.00&
130.00
18.30&
20.75
13.30L&R &
10.25L&R
Support Fitting Flanges
Damage Allowed on Two Diagonal Tabs
130.00 20.75
10.25L&R Cross Tube Aft Strap
0.63 1.26 5
73.00 18.30
13.30L&R Cross Tube Forward Strap
0.35 0.70 5
73.00&
130.00
18.30&
20.75
13.30L&R &
10.25L&R
Back-Up Support
No Damage Allowed
4-43
AIRFRAME