5. Performance
5.1 The following data was obtained in the original UK prototype, G-CBIV.
Changes from this data for your particular aircraft will be at Annex A. When
using the data for planning purposes, apply sensible safety factors, such as
are contained in CAA Safety Sense leaflet 7B (aircraft performance), part of
which is reproduced here by kind permission of the CAA.
5.2
The best climb speed
is 53kn CAS [
IAS]. When selecting a climb
speed, always remember that should anything go wrong, more speed gives
you more time to sort your problems out. Although climb performance may
change between aircraft, the best climb speed should not. Specific
performance figures for your aircraft will be in Annex A.
5.3
The best glide speed
is 60kn CAS [
IAS], at which a glide ratio of
around 9 to 1 may be expected. Flying a little slower at 50kn CAS
[ IAS] will give the minimum descent rate (min sink) of around 550FPM.
5.4
Cruise performance
Because microlight aircraft are very strongly affected
by weight, engine condition, propeller matching, wind and air temperature, it
is very hard to give any reliable information concerning the cruise
performance of the Skyranger. The captain is encouraged to plan very
conservatively until sufficient experience is gained of the fuel consumption and
cruising speeds at the conditions in which he or she normally fly the aircraft.
5.5
Takeoff performance
Take-off performance for short dry grass for your
aircraft is contained in Annex A.
Skyranger Operators Manual, Issue 1, AL0, June 2002
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