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2. LIMITATIONS
2.1 General
The limitations section of this Manual outlines the various operating limitations, instrument function and
placards necessary for the safe operation of the ANT-70 with engine and standard equipment.
2.2 Airspeed Limitations
SPEED
km/h
mph
COMMENTS
Vne (never exceed
speed)
90
56
Do not exceed this speed in any
operation
Va (maximum
maneuvering speed)
70
44
Do not make full or abrupt control
movements above this speed
2.3 Power Plant Limitations
2.3.1 Engine
The ANT-70 trike is equipped with Octagon 190 (2 stroke, 27 hp) air cooled engine with manually
actuated starter.
The trike may be equipped with other engines with similar characteristics.
WARNING:
THIS IS A NON-CERTIFIED AIRCRAFT ENGINE, THE POSSIBILITY OF ENGINE FAILURE EXISTS AT ALL
TIME. DO NOT OPERATE THIS ENGINE OVER DENSELY POPULATED AREAS. DO NOT OPERATE THIS
ENGINE OVER TERRAIN WHERE A SAFE, POWER OFF LANDING CAN NOT BE PERFORMED.
2.3.2 Fuel
Two-stroke engine in your trike requires using oil-petrol mixture in 1:40 ratio during regular usage and
1:33 when you run it in.
Premium petrol 95 (Ron) octane unleaded. Synthetic top-quality oil for 2-strokes engines.
2.4 Operational Limits
2.4.1 Centre of Gravity limits
Centre of gravity limits are not critical on the trike of a flex wing ultralight. Having the trike unit attached
to the wing with a hang bracket, variations of cockpit loading and fuel loading cannot influence the
ultralight’s balance. The ANT-70 is therefore not critical in regards to centre of gravity although the
distribution of load in the trike has an affect on the in-flight attitude of the ultralight.
2.4.2 Maneuvering Limits
All aerobatic maneuvers including spinning are prohibited.
Aerobatic maneuvers including stalls, stalled spiral descents and negative G maneuvers are not
permitted. These maneuvers put the ultralight outside the pilot control and put both the ultralight and its
occupant in extreme danger.
Do not pitch nose up or nose down more than 30 degrees from the horizontal.
Do not make high speed abrupt turns.
2.4.3 Bank Angle
Do not exceed 60 degrees of bank angle. In roll there is no stop for the control movement. When
performing the pre flight procedure check that the wing moves freely by lowering each wing to within
10 cm off the ground (on ground level).
ENGINE PERFORMANCE & LIMITATIONS
Engine Type
Octagon 190
Take off RPM (Max 5 minutes), rpm
7500
Take off power, hp
27
Summary of Contents for ANT-70
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