
Section 920
Airtow Hook
Page Date: 4. February 2011 920 - 3
Pilot´s Operating Handbook
EXTRA 330LX
920.1 GENERAL
The EXTRA 330LX can optionally be equipped with a "TOST" glider air-tow release Typ E 85.
The release mechanism is mounted at the tail spring end and actuated from the cockpit by a
yellow knob.
920.2 LIMITATIONS
The following combinations are certified:
Aircraft
Engine: AEIO-580-B1A
Propeller: MTV-9-B-C/C 198-25 or MTV-14-B-C/C190-130
Exhaust system: Typ Gomolzig EA 300-606000
Air-tow release system according to replacement instruction: UA-300-4-95
Air-tow release: "TOST, E 85"
Glider
MTOW of the glider: 765Kg (1687 lbs)
Max. air towing speed of the glider: 152 km/h or above
Air tow cable and breaking piece (weak links)
Length of the synthetic tow between 40 m (130 ft) and 60 m (195 ft)
Ultimate load of the air-tow max. 850 kp (1875 lbs)
If tows with higher ultimate load are used a breaking piece (weak links) of max. 850 kp
(1875 lbs) must be interconnected.
For a safe air towing the following points must be observed:
1.) Maximum air-towing speed = maximum permissible air-towing speed of the glider.
2.) The maximum permissible cylinder head temperature is 465° F (red line).
3.) Interior mirror mounted.
For the location of the yellow release knob the following placard has to be attached in the
near of the knob:
NOTE *
2-seats only in case of an instruction flight!
AIR TOW
1-seat 2-seats *
Max. Takeoff Weight 820 kg (1813 lbs) 870 kg (1924 lbs)
Max. Empty Weight 701 kg (1546 lbs) 665 kg (1466 lbs)
Min. Air-Towing Speed 69 KIAS (128 km/h) 72 KIAS (133 km/h)
Best Air-Towing Speed 76-80 KIAS
(141 - 148 km/h)
78-82 KIAS
(144 - 152 km/h)
Page Date: 5. September 2013
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