8-30 Fixed Ballast
8-31 Nose Ballast
Refer to R66 Illustrated Parts Catalog (IPC) Figure 8-1.
NOTE
Maximum allowable nose ballast is 15.00 lb.
CAUTION
Altering fixed ballast can appreciably affect helicopter center of
gravity (CG). If fixed ballast information is unknown, reweigh
helicopter per Section 8-22.
1. Refer to Figure 8-4. Remove screws securing B050-22 or -23 upper console assembly to
F033-1 lower console assembly and hinge upper console assembly aft. Protect instrument
face with foam support or equivalent.
2. Remove hardware securing A941-5 or -6 ballast plate(s), if installed, to F361-1 panel.
3. Remove or install ballast plates per calculations performed in Section 8-22. Select NAS6603
bolt length to meet torque requirements per Section 20-30. Install hardware, torque bolts
per Section 20-32, and torque stripe per Figure 5-1.
4. Hinge upper console assembly forward and install screws securing upper and lower
console assemblies. Verify security.
5. Reweigh and/or calculate basic empty weight and CG per Section 8-22.
6. Revise Weight and Balance Record in R66 Pilot's Operating Handbook (POH) Section 6
to reflect ballast removal or installation using the following data:
Weight Longitudinal
Arm
Longitudinal
Moment
Lateral Arm Lateral
Moment
Nose ballast 0-15.00 lb 5.15 in. Variable 0.00 in. 0.00 in.-lb
25 OCT 2010 R66 Maintenance Manual Chapter 8 Weight and Balance Page 8.11
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