This should light some people's fire.

stesta5074

stesta5074

Well-Known Member
My instructor showed me a new short field take-off technique!

Put full power and hold the brakes. Accelerate to just before the plane's short field liftoff speed (40 knots). Then pull (manual flaps) short field takeoff flaps down. This way you don't have the flap drag during acceleration. The plane just launches into the air; I'm going to keep using the technique from now forward.

This is a great takeoff edition to taking the flaps in during the flare!

This post isn't a joke either! It worked really well.



EDIT: This was a Piper Archer II with manual flaps.
 
Yes... just don't use it on a soggy wet field..

the performance gain for most planes is prob. Is slim to none though.
 
TUCKnTRUCK said:
Yes... just don't use it on a soggy wet field..

the performance gain for most planes is prob. Is slim to none though.
Click to expand...

Indeed, and by having the flaps down from the word go you're going to develop lift faster and thus, get the wheels out of the crap sooner.
 
Yes it works. Yes, it works well.

No, it shouldn't be used "every time", especially when you don't need it. If I were you I would keep that club in your bag for when you really need it and instead practice the technique outlined in the PTS.

Keep in mind I'm one of the dangerous types that raises the flaps in the flare when required.
 
I guess its fine as long as you do it on hard surfaced runways. Probably not a whole lot of drag caused by the airlerons at 10º. Keep in mind that they're also helping in easing some weight of the wheels as you build up airspeed, reducing friction with the ground (again, probably not a whole lot).

The short field takeoff procedure for the 152's and 172 calls for ELEVATOR CONTROL - "slightly tail down" during the takeoff roll. This might mean that its probably a good thing to trade a little bit of extra drag for less weight on the wheels.

I dont think theres any real advantage to using that technique. Though unlikely, you may miss the first notch, or find out at 100ft from the end of the runway that flaps wont lock into position.

My prefrence is to leave them in during the TO roll.
 
esa17 said:
Yes it works. Yes, it works well.
Click to expand...
Wouldn't have thought it'd be that effective in the 207, what with the slow pace of extension of the Cessna electric flaps. Or are you talking about other flying?
 
My instructor had shown me this as well. Works well when you just need to get your wheels off the runway now. He even had me do it all the way to full flaps just to show it could be done. Really makes the airplane jump off the runway. But practically there just isnt much use for it. Unless your running out of runway with no obstacles off the end then you could use it to jump in the air and then slowly climb out after that.
 
Roger said:
Wouldn't have thought it'd be that effective in the 207, what with the slow pace of extension of the Cessna electric flaps. Or are you talking about other flying?
Click to expand...
It doesn't work "as" well in a cessna but it works to some extent. Pprag would know more about that than I would.


Manual flaps make it the bees knees.
 
It works in a 747-200. We actually had that as part of our initial training due to a certain segment of our flying.

I don't know of anyone actually using it online though.
 
esa17 said:
Pprag would know more about that than I would.


Manual flaps make it the bees knees.
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Oh absolutely. Seen it in action many times riding with our company's pilots. Though, often times I got the impression they were doing it for the heck of it and not out of any necessity or convenience. The times I did see it used when it seemed to be useful were all strong, gusty wind situations where popping the flaps helped positively pop the plane off the runway and get clear of the pavement.
 
Yea, you might get off the ground 10' sooner. BFD.

I don't like doing it with electric flaps because they come down slower and you can make an error and go full flaps. In my plane that's really big flaps at 45*
 
stesta5074 said:
My instructor showed me a new short field take-off technique!

Put full power and hold the brakes. Accelerate to just before the plane's short field liftoff speed (40 knots). Then pull (manual flaps) short field takeoff flaps down. This way you don't have the flap drag during acceleration. The plane just launches into the air; I'm going to keep using the technique from now forward.

This is a great takeoff edition to taking the flaps in during the flare!

This post isn't a joke either! It worked really well.



EDIT: This was a Piper Archer II with manual flaps.
Click to expand...

maverick_iceman.jpg


Obligatory.
 
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