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

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

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

INCLUDES:
Servo w/Universal connector, in addition to complete set of horns, grommets,
    bushings and installing 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°

COMMENTS:
A retract servo is a really specialized servo. It is non-proportional,
    going 180 degrees, "lock to lock". They are particularly produced
    mechanical retracts to lock the equipment in the up and down positions.
    they DO NOT have any methods of end point adjustment and can not be
    changed by ATV on a transmitter. They are only able to go 180
    degrees and supply complete maximum available torque at the 2 end
    points. This is their whole function and deliberate style|style}, but if
    someone has a unique design circumstance where they require besides
    180 degrees available, then they must use a proportional servo,
    not a retract servo. They are particularly created to hold up against
    constant holding loads in the up and down positions, unique to the
    use of mechanical retracts.
    Pneumatic retracts do not require a retract servo. A proportional
    standard or small servo is utilized to move the air valve back and forth

    For Gear set, order HRCM6343