Рет қаралды 13,473
This video demonstration acts as a brief guide to the short take-off performance of the Vixxen - this video should not be taken as a lesson, rather than a showcase of the aircraft performance.
The Vixxen POH quote a stall speed, at its maximum takeoff weight of 27 knots. When flying single pilot and half fuel, the stall speed would be reduced even farther.
Based on the Vixxen POH, - the aircraft will take off within 100m at MTOW. With practice and assisted with the correct technique, this distance can be significantly reduced.
On this particular day, The DA altitude was calculated as 1,780ft which provided by the Dynon D10A Display installed on the aircraft.
The purpose of this video is to demonstrate how to safely get airborne using the shortest distance possible.
Our method is to use minimum drag on the initial takeoff roll, then achieve maximum lift by applying full flap to get us airborne.
At the point when we reach flying speed, By applying the A32 Vixxen unique large full span flaperon - we can get airborne at minimum speed and minimum distance.
If we apply the full flap too early, This will most likely result in a longer takeoff run due to the increase in drag.
On the other hand, If we apply the flap to late into the takeoff roll - we have wasted crucial runway. - It's, therefore, important to practice in your own aircraft and on the day specific weather conditions and aircraft weights how to achieve best results.
The technique:
1. After performing all pre-take-off checks and performing radio calls. Line-up on the runway centreline.
2. Apply the brakes.
3. Over 3-4 second, smoothly apply full power.
4. When the RPM reach 3000-3500rpm release the brakes
5. Move your hand from the throttle to the flap handle
6. Increase the angle of attack by raising the nose wheel off the ground (roughly speaking - the nose wheel should be 10cm above the runway) this will give you the correct attitude for takeoff and climb out and there will be no need to farther increase the nose attitude with back pressure.
7. When a speed of 25 knots is reached, lower the flap to 20 degrees in a smooth, but positive action. The aircraft will quickly get airborne.
8. Once airborne wait for a speed of 40 knots before starting to climb away. When a speed of 50 knots is reached slowly retract the flap and accelerate to either best rate Vx of 54 knots or Best climb Vy of 65 Knots.
We recommend you should try this with an experienced instructor first.