Bell OH-58A - Damage Limits Forward Fuselage - Condition I

TM 55-1520-22 8-BD
Table 4-2. Damage Limits Forwar d Fuselage — C ondition I (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)Upper Cabin Roof
Shell
54.48-
130.00
Flanges, Formers,
Stiffeners, Supports
0.60 1.20 10
Landing Gear 73.00&
130.00
18.30&
20.75
13.30L&R
&
10.25L&R
Support Fitting
Flanges Damage Allowed on One Flange
130.00 20.75 10.25L&R Cross Tube Aft Strap 0.31 0.62
-
73.00 18.30 13.30L&R Cross Tube Forward
Strap
0.10 0.20
-
73.00&
130.00
18.30&
20.75
13.30L&R
&
10.25L&R
Back-Up Supports
No Damage Allowed
73.00&
130.00
18.30&
20.75
13.30L&R
&
10.25L&R
Attachment
Fasteners and Inserts
Damage Allowed On
One Fastener & Insert
Per Fitting
Jacking &
Tiedown Fittings
Fitting Damage Limited By
Jacking Tiedown
Requirements
Anti-Torque
Support 35.66 21.00
5.04L-
3.04R
Fitting
No Damage Allowed
Collective
Jackshaft Bearing
Support 73.12 28.62 1.50L
Fitting
No Damage Allowed
Anti-Torque
Support Fitting 78.95 23.83 3.06L
Fitting
No Damage Allowed
4-35
AIRFRAME