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rockiedog2
Joined: 03 Mar 2010
Posts: 19
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 Posted: Thu Sep 15, 2011 2:10 am Post subject: What is your short takeoff technique ( pavement |
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The most efficient way to get the shortest takeoff is flaps extended one notch, stick neutral til approaching minimum liftoff speed, then smoothly but aggressively rotate to lift off just above(one or two mph) stall speed...the stick anywhere but neutral during the takeoff roll does nothing but produce drag and increase the takeoff distance. In practical application on the 701 this amounts to full power and shortly thereafter rotate to climb attitude. As to the "clean and jerk" technique mentioned...a "jerk" would be considered bad form for any maneuver, even a snap roll. All control movements should be smooth, and in this case aggressive for the rotation. And to wait til 40 mph to rotate will lengthen the takeoff roll simply because it's so far above stall speed. As to the flaps...one notch will shorten the takeoff roll but reduce the angle of climb, so as soon as you have sufficient airspeed retract the flaps.
Have fun
Joe
[quote][b]
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dashwood
Joined: 24 Jan 2009
Posts: 73
Location: sw ontario canada
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| Posted: Thu Sep 15, 2011 4:38 am Post subject: Re: What is your short takeoff technique ( pavement |
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Quote others
For me it is 1/2 flaps, holding stick back till the nose wheel gets light then relax the stick and fly off
Ross
This gets me off the ground very quick too. But often have to fly ground effect till airspeed builds. If engine were to fail in high nose up configuration the rotation back would be very difficult.
Quote joe”
one notch will shorten the takeoff roll but reduce the angle of climb,
Ross
so if you are trying to clear 50ft obstacle as soon as possible . i find it may be better to start without flaps. no drag to start = faster accel =sooner airspeed liftoff=faster climb. if short field with obstacles is the problem i find a rolling start at some other angle including the opposite direction if there is room to turn. not long as the acceleration is quick but it can add a few feet.
this method seems to be better than a standing start with brakes applied. I find you have to put rudder imputes in very soon after nose up and toes on the brakes hinders this.
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_________________
Ross Alexander: CH701 driver 912ul 788tt
It only takes two things to fly, airspeed and money |
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craig(at)craigandjean.com
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| Posted: Thu Sep 15, 2011 1:24 pm Post subject: What is your short takeoff technique ( pavement |
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Umm, the stock flap lever on my 701 only has two positions - in and out.
Can't do "one notch" or half. The 750 is electric like the 601/650.
-- Craig
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NYTerminat(at)aol.com
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| Posted: Thu Sep 15, 2011 6:52 pm Post subject: What is your short takeoff technique ( pavement |
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That's because I built mine with electric flaps
Bob Spudis
In a message dated 9/15/2011 5:24:45 P.M. Eastern Daylight Time, craig(at)craigandjean.com writes:
| Quote: | --> Zenith701801-List message posted by: "Craig Payne" <craig(at)craigandjean.com>
Umm, the stock flap lever on my 701 only has two positions - in and out.
Can't do "one notch" or half. The 750 is electric like the 601/650.
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