Short field takeoff
Thread Starter
Joined: Mar 2009
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From: Slovenija
Short field takeoff
Hi!
I was reading the Piloting Basic Handbook the other dayand I came across an interesting statement: it says in the book, that you shouldn't hold your brakes and rev up the engine when you perform a short field takeoff as it doesn't make a difference in rwy used in a piston engine acft. Is this true?
Thank you!
I was reading the Piloting Basic Handbook the other dayand I came across an interesting statement: it says in the book, that you shouldn't hold your brakes and rev up the engine when you perform a short field takeoff as it doesn't make a difference in rwy used in a piston engine acft. Is this true?
Thank you!
Joined: Mar 2005
Posts: 299
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From: THE NORTH
POH/flight manual.
The only book you should use regarding the piloting of your aircraft is the APPROVED flight manual.
If the POH tells me to use full power against the brakes I do it!
JL.
From the Cessna 150 approved flight manual.
Maximum performance take-off.
(1) Wing flaps -- up.
(2) Carb. heat -- cold.
(3) Brakes -- Hold.
(4) Throttle -- Full "OPEN"
(5) Brakes -- Release
(6) Elevator Control -- Slightly tail low.
(7) Climb speed -- 68mph (with obstacles ahead)
The Piper Warrior is similar but gives much more detail and the option to use different flap settings and speeds.
If the POH tells me to use full power against the brakes I do it!
JL.
From the Cessna 150 approved flight manual.
Maximum performance take-off.
(1) Wing flaps -- up.
(2) Carb. heat -- cold.
(3) Brakes -- Hold.
(4) Throttle -- Full "OPEN"
(5) Brakes -- Release
(6) Elevator Control -- Slightly tail low.
(7) Climb speed -- 68mph (with obstacles ahead)
The Piper Warrior is similar but gives much more detail and the option to use different flap settings and speeds.
Last edited by JUST-local; 7th July 2010 at 08:55. Reason: detail added!
Joined: Aug 2007
Posts: 10
Likes: 0
From: Ho Chi Minh City
Check power output.
One of the reasons that you should run up the power against the brakes is to check that the engine is operating correctly and providing sufficient RPM before commencing the take off run as once you have started hurtling down the runway and realise that the RPM is too low it's too late! This may or may not of course concur with the POH.
Joined: Feb 2006
Posts: 376
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From: A long way from home
Holding on the brakes in a piston aircraft only saves a small ammount of runway (the time it takes for the prop to spin up is just a couple of seconds). If your TODR / TODA are so critical that this is an issue, maybe you should rethink the departure.
Using the brakes will save you some runway, and could (as has been pointed out above) give you extra time to check Ts&Ps etc.
Using the brakes will save you some runway, and could (as has been pointed out above) give you extra time to check Ts&Ps etc.
