Robinson R66 - D301 Ballast Installation; F003-19 Seat Removal; F014-5 Landing Gear Installation; F036-3 Battery Installation

90-90 D301 Ballast Installation
CAUTION
Altering fixed ballast can appreciably affect helicopter center of
gravity (CG).
CAUTION
Maximum allowable empennage ballast is 21.00 lb on Police
Versions. One upper and one lower weight are required.
Available combinations provide total weight of 3, 6, 9, 12, 15,
& 21 lb.
Refer to Chapter 8-00 for weight and balance information.
90-100 F003-19 Seat Removal
A. Description
Police version helicopters have no aft center seat installed. The following equipment
is omitted: F628-4 connector assembly, center F628-6 buckle assembly, F931-1 seat
assembly, A752-3 angle, and associated hardware.
90-110 F014-5 Landing Gear Installation
Refer to Figure 90-1. The F014-5 (extended) landing gear installation provides clearance
for the F081 searchlight installation. F239-5 and -6 forward struts (extended gear) are
approximately 2 inches taller than F239-3 and -4 forward struts (standard gear).
Refer to Chapter 32 for landing gear maintenance procedures, and for extended gear
minimum tail skid height.
90-120 F036-3 Battery Installation
Refer to Figure 90-1. The F036-3 (aft) battery installation was the only approved battery
configuration for earlier Police Version helicopters, for weight and balance purposes.
Additional installation configurations are permissible on later Police Version helicopters.
Refer to § 96-10 for battery maintenance procedures.
Page 90.10 Chapter 90 Police Version JUL 2020