2-40
Glider Tow
64.
Complete the tow to altitude as follows:
a.
maintain a climb speed of 70 MPH;
NOTE
When operating in high temperatures, if CHT or oil
temperature may exceed limitations, a tow speed of
75 MPH may be used. If necessary, reduce throttle
while maintaining a safe rate of climb.
b.
expect rudder and elevator trim changes during the tow as the glider moves
around. Counter these changes by manually maintaining co-ordinated flight and
trimming off elevator pressure if required;
WARNING
Rapid movement of the glider to an extreme tow
position may result in tow ship upset. When a glider
on tow diverges to a tow position producing forces on
the tail that cannot be countered with elevator and / or
rudder, release the glider.
c.
strive to use a maximum of 15-20 degrees of bank in the turns. Enter and exit
each turn smoothly, maintaining rudder co-ordination throughout; and
d.
plan your pattern to arrive at the designated release point at the same time you
reach release altitude.
Glider Release
65.
Glider release is performed using the following procedure:
a.
approaching the planned release altitude, gradually reduce MAP to approximately
16” while maintaining 70 MPH. This will result in the tow aircraft levelling off or
maintaining a gentle climb;
b.
close cowl flaps;
c.
await glider release. As the glider prepares to release it will climb and then dive
slightly to ease the tension on the tow rope. This will be felt in the tow aircraft
through pitch changes which are manually controlled. Care must be taken to
ensure these pre-release actions by the glider are not mistaken for an actual
release; and
d.
visually confirm glider release using the two mirrors. Visually observe the tow rope
drop and the glider commence a climbing right turn before initiating descent
procedures. If in doubt the glider has released, continue flying straight and level
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