Copyright of RotorSport UK Ltd
Document number RSUK0060
Page 48 of 101 Page issue
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WARNING! FUEL MANAGEMENT!
ALWAYS plan your fuel loading to suit your flight, with headwinds and alternate airfields in
mind. ALWAYS make a safe precautionary landing to get more fuel, rather than wait for
an unsafe emergency landing because you have run out of fuel!
Check list after flight finish
1. Ensure master switch and electrics are off (prevents a flat battery)
2. Clean and check aircraft ready for next flight (better to find service issues now than
when you are eager to fly!).
3. Park in the proper area, chock wheels, and cover. Unless required for safety, it is
best to leave the aircraft unbraked when parked.
4. Complete logbooks.
5. Celebrate an excellent flight!
5. PERFORMANCE
5.1 PERFORMANCE DATA
The following operational parameters were confirmed as a result of flight testing. Note that
this assumes the engine and aircraft are in good condition, with an averagely capable
pilot. The parameters apply to standard conditions (sea level, normal pressure, 15°C, zero
wind, max take-off weight 500Kg or as noted, even field with short grass in good
condition). Airfield altitude, higher temperature and low air pressure will change
performance data.
SPEEDS
Minimum speed (Vmin) 30mph (914UL or lightly loaded 912ULS) 35mph for 912ULS
MTOW
Manoeuvre speed (VA) 80mph
Cruising speed up to 80 mph (with orange cap rotor system) or up to 110mph (with
RotorSystem II, red end caps
, or TOPP variant with blue end caps
)
Permissible maximum speed (VNE) 90mph (with orange cap rotor system) or 120mph
(with RotorSystem II, red end caps
, or TOPP variant with blue end caps
)
TAKE OFF DISTANCE (MTOW) with HTC ground adjustable propeller
Take-off run 20 - 170 m (66-560ft) (depending upon loading and wind force)
Take-off distance over 15m (49ft) obstacle 914UL - 460m (1495ft) 912ULS - 530m,
(1722ft) in still wind with the rotors at 250rpm on rough grass, 15deg C, aft CG conditions.
Note that take off distance is reduced by approximately 15% when the aircraft is fitted with
an in-flight adjustable Ivoprop DL3-68 propeller, set in fine pitch.
LANDING DISTANCE
Landing run 0 - 40 m (130ft) braked (although brakes are not normally required)
Landing distance over 15m (49ft) obstacle 200m (650ft) inclusive of ground roll. Note that
this is based on a normal landing configuration at maxTOW. Shorter landings can be
made with steep nose down engine at idle approaches, to the order of 100m. Practice is
required.
MINIMUM CLIMB RATE (with HTC propeller)
Light single-seat 1,200fpm (912ULS) or over 1,500fpm (914UL)
Two seat (500kg) 500fpm at MTOW (912ULS) or 700fpm (914UL)