MDM MDM-1 FOX, Руководство по эксплуатации самолета

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MDM-1 „FOX” FLIGHT MANUAL
Appr. 4.6
Issue III
3. Aerotowed take-off - ON NOSE HOOK ONLY!

When tensioning the tow cable, brake on the wheel. This prevents rolling the wheel over the cable.
In case of surge and slackening of the tow cable, release it immediately.

The ground run up with stick pushed forward is recommended, to lift the tail as soon as possible.

Should the wing touch the ground, release the cable immediately.
4.5.2 Take-off and climb (aerotowed take-off).

After establishing the aerotow airspeed, neutralise control stick forces with elevator trim.

The low-tow position behind the aeroplane not recommended due to cable rubbing against
fuselage surface.
4.5.3 Flight.
The glider controllability in free flight is correct, the deflections of control surfaces are proportional,
low control forces.
The stall warning, in the form of perceptible vibration, appears approx. 4÷5 [km/h] (2.2÷2.7 [kt]) before
the stall.
The air brake can be operated up to V
NE
. At the speed above 200 [km/h] (108 [kt]), extend the air brake
gently, as pilot may be subjected to the forward surge (braking effect).Extending the air brake results in
strong buffeting at tailplane, increasing in line with a speed. This, however, does not present a problem
for piloting the glider.
In acquainting flights on this type, the attention is to be paid to large forces of air brake retraction, at
airspeeds exceeding 200 [km/h] (108 [kt]), and strong braking effect.
In thermal and soaring flights, due to a small margin between the warning and stalling speed, the careful
piloting and attention are necessary.
Flight in thunder conditions should be avoided.
4.5.4 Approach.
Approach at 115 [km/h] (62 [kt]) airspeed. In rough air, or in rain, at 125 [km/h] (67.5 [kt]). Extending
the air brake incurs a nose-down pitching, which requires compensation with aft stick input.
The efficiency of air brake allows for precise adjustment of approach path angle.
The operation force on air brake lever is moderate.
4.5.5 Landing.
Due to the lack of shock absorber, land on the selected smooth airfield part.
Touch ground simultaneously with main and tail wheels. Due to coupling between air brake, and wheel
brake actuation, avoid touching ground with fully extended air brake.
Avoid hard wheel braking. In ground run hold the control stick completely aft. The glider tends to nose-
down pitch.