Hitec Hs-75Bb Retract Servo, .34Sec/114Oz @ 6.0V

This is a 75BBS Retract Servo used for R/C Aircraft Mechanical Retracts
with a Universal Futaba J, Hitec S, JR and Airtronics Z connector.

FEATURES:
High torque
Journeys 180° - full-lock to full-lock - to hold your gear in position
    safely. Not proportional. Perfect for mechanical retract
    installation.
Water resistant
Ball bearings

CONSISTS OF:
Servo w/Universal adapter, in addition to complete set of horns, grommets,
    bushings and mounting screws.

SPECS:
Length: 44mm (1.7") Weight: 35g (1.23 oz.)
Width: 23mm (0.9") Torque: 6.6 kg-cm (92 oz-in)
Height: 25mm (1.0") Speed: 0.5 sec/60°

REMARKS:
A retract servo is a really specialized servo. It is non-proportional,
    going 180 degrees, "lock to lock". They are particularly made for
    mechanical retracts to lock the gear in the up and down positions.
    they DO NOT have any ways of end point adjustment and can not be
    adjusted by ATV on a transmitter. They are just able to go 180
    degrees and supply complete optimum available torque at the 2 end
    points. This is their entire function and deliberate style|style}, but if
    someone has a unique design scenario where they need other than
    180 degrees available, then they must utilize a proportional servo,
    not a retract servo. They are particularly designed to endure
    constant holding loads in the up and down positions, distinct to the
    use of mechanical retracts.
    Pneumatic retracts do not need a retract servo. A proportional
    basic or small servo is used to move the air valve backward and forward

    For Gear set, order HRCM6343