2008, october, 17
5-10 : Descent-Landing
To descend, reduce power for 90km/h (49 kts) at full load.
to use the flaps on landing allows:
-on first position, reduction of minimum speed of 5 km/h (2,7 kts)
(do not exceed 120 km/h (65 kts) with flaps on first position)
-on second position, a reduction of minimum speed of 7 km/h (3,8 kts)
(do not exceed 110 km/h (59 kts) with flaps on second position)
-on third position, a reduction of minimum speed of 14 km/h (7,5 kts)
(do not exceed 90 km/h with flaps on third position)
Keep in mind that speed is controlled with the stick and angle of descent with the throttle. Keep a
safe margin and end your approach with a power off (idle) descent, then flare off.
In off-field landings, this procedure will allow you to retain enough altitude until the last moment
to avoid a hidden object, such as a fence or large rock....
A flat approach, airplane style, should be reserved to airfields with a well cleared, open approach.
The flare-out itself is straightforward. Keep some power on for comfort, and keep the aircraft
tracking straight.
Remember: on an ultralight, the rudder remains effective down to very low speeds.
Once the main wheels are on the ground, keep pulling back on the stick until the nosewheel
touches down also.
This will slow down the aircraft faster and will keep the nosewheel from hitting a bump too hard.
If your landing seems a bit chancy, never hesitate to add full power and go around.
The following is the easiest method to calculate best approach speed (V.A) for short field
landings:
V.A = (Vmin x 1,3) + 1/2 win(Vgusts - Vwindspeed)
Vmin
is indicated in the specs sheet.
For example, at full load : WIND : 25 km/h (15 mph) ; GUSTS : 35km/h (22 mph)
V. A
= (63x1,3) + 12,5 + (35-25)
V.A = 104,4 km/h
Check before landing
No aircraft on approach or ready to take-off
Brakes free
Iddle RPM, givrage, carb heat (if installed)
Fuel pump (if installed)
5-11 : Crosswind
Never take off with a 90° crosswind higher than indicated in the specs sheet: 25km/h
unless you are thoroughly experienced on your aircraft.
In crosswind landings, lower your wing into the wind, and add enough opposite rudder to keep
your aircraft straight down the strip (side slip).
Keep heading straight, touchdown with the upwind wheel first, then decrease your angle of bank
and lower the other wheel slowly.
This maneuver can be used with a minimal amount of practice.
Summary of Contents for X-AIR HANUMAN 602T AP
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