Jabiru Aircraft
Pilot Operating Handbook
Model J170-D
JP-FM-13
Revision:
0
1
2
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4
28 Feb 2020
Page 4-47
NOTE
Soft field take-offs are potentially high risk manoeuvres with reduced safety margins, especially in
a cross wind, wind gust or if the engine fails. Where possible, they should only be attempted in
good conditions. If students are being taught soft field take-offs the weather conditions must be
appropriate and a long runway used.
WARNING
It is possible to over-rotate the aircraft in ground effect to a dangerously nose-high pitch, resulting
in a stall once clear of ground effect. Allow pitch angle & airspeed to stabilise out of ground effect
before applying aggressive pitch inputs.
WARNING
If high power is applied when the propeller is over loose gravel, grass etc propeller damage will
result.
4.7.4
Soft Field Landing
Crew ........................................................ HARNESS SECURE / BRACE
Surface Test:
Wing Flaps .............................................. TAKE-OFF (1
st
Stage)
Approach ................................................. FLAT. Aim for wheels to touch as near to the
target point as possible. Approach under
power.
Power ...................................................... APPROX 1500 RPM
Airspeed .................................................. 5 KIAS ABOVE STALL
Main Wheels ............................................ TOUCH.
Go-Around ............................................... EXECUTE
Landing:
Wing Flaps .............................................. FULL
Approach ................................................. FLAT. Aim for wheels to touch as near to the
target point as possible. Approach under
power.
Power ...................................................... APPROX 1500 RPM
Touch Down ............................................ MINIMUM / STALL SPEED
Go-Around ............................................... APPLY IF NEEDED
Power ...................................................... IDLE
Brakes ..................................................... AS REQUIRED
NOTE
Soft field landings are high risk manoeuvres with potential for the aircraft to flip or become un-
controllable due to the soft surface. Where possible, they should only be attempted on a known
runway in good conditions. If students are being taught soft field landings the weather conditions
must be appropriate and a long runway used.
NOTE
Soft field approaches require great precision in airspeed and height control. Pilots must be
prepared to go-around early.
