Bell OH-58A - Damage Limits Aft Fuselage - Condition II

TM 55-1520-22 8-BD
Table 4-6. Damage Limits Aft 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)Aft Fuselage 130.00-
206.25
Longeron
Upward
Stiffeners
0.75 1.50 5
130.00-
206.25
Lower
Longeron
to Upper
Longeron
Skin
3.75 5
130.00-
206.35
Lower
Longeron
Upward
Doublers
3.75 5
130.00-
206.35
Lower
Longeron
Upward
Clips
Same Limits as Attaching Structure
Tail Boom Access 192.84-
205.76
73.34-
61.76
Skin
11.0 5
Deck 179.92-
205.76 72.00
8.33L-
8.33R
Skin
3.75
5
Oil Cooler 167.00-
179.92 72.00
10.18L-
10.18R
Honeycomb Support
Panel
3.00 5
No Damage Within
2” of Inserts
171.50 72.00 0
Pan & Drain No Damage Allowed
Anti-Torque Support
179.92-
181.62
58.27-
73.37
0.88R
Support & Fittings
No Damage Allowed
Engine Pan 130.00-
167.00 71.74
14.12L
14.12R
Horizontal Stiffeners
1.20 2.40 5
130.00-
167.00 71.74
14.12L
14.12R
Web & Drain
No Damage Allowed
130.00-
167.00 71.74
14.12L-
14.12R
Spot Weld Damage
1/2 of Welds May Be Damaged
130.00-
167.00 71.74
14.12L-
14.12R
Doublers, Splices
Vertical Stiffener
0.85 1.70 5
Canted Web
130.00-
192.84
51.67-
59.98
25.00-
7.00L&R
Stiffeners
1.50 3.00 5
130.00-
192.84
51.67-
59.98
25.00-
7.00L&R
Web
5.40 5
4-45
AIRFRAME