31 Day Safer Pilot Challenge - Day 1 Engine Failure on Takeoff

[Lochnil]

Anyway, this is just an academic approach to Cessna C152 and not in anyway a generalized concept…and the academic approach is most surely the most theoretical approach to a planned emergency. We all get different trainings, hopefully on a real emergency we'll have the right decision skills in accordance to the moment

[Lochnil]

Ok, so I've been consulting the C152 manual (realize that this is the original manual from 79') it actually recommends flaps 30º on a assured field

[LetsFlyWa]

@Lochnil "On assured field" I assume means during something like a power off 180 or similar. With a power failure over the runway this really doesn't apply.. IMHO. As far as avoiding a stall when climbing at Vx, the rapid pitch down is what keeps you from stalling while the flaps would, most likely, cause you to balloon for a moment. I don't have any of my Cessna POHs handy but the one I have for the Warrior simply states "If sufficient runway remains for a normal landing, land straight ahead".

[Lochnil]

@LetsFlyWa The assure is not a manual word, it actual is a literal translation from portuguese, it just means that you have enough speed/time to reach it.Looking for flight manuals I've found onFlight Prep for C152 stating:"8.Full Flap for minimum touch-down speed and then master switch off."The difference might be just the runway available I believe, cause the lesser the speed the lesser the energy to dissipate on field. On my short experience the pitch down is effective enough to bring it down

[LetsFlyWa]

@Lochnil I understand what you are saying and I agree that less speed = less energy and that is a good thing in an emergency landing. The difference is that "8.Full Flap for minimum touch-down speed and then master switch off." if for an engine failure in flight type of emergency. When talking about an engine failure on takeoff, the speeds are much lower already and the time that you have to react is much less. Here I think that a configuration change is unnecessary and even a distraction.

[LetsFlyWa]

@Lochnil What is really important is that you have a plan to deal with an emergency and if you should ever need to use that plan and it gets you through the emergency in one piece, who is to argue that you did something wrong.

[LetsFlyWa]

@Lochnil Thank you for having this discussion, its nice to hear what others have learned and to debate or talk about the reasons behind it.

[Scote1992]

@lochnil are flaps necessary? At that speed I think I'd just be focused on not stalling, most planes can land safely with no flaps, why add in that extra drag that's gonna quickly take your speed away?

[Lochnil]

@Scote1992 I realize that of course, but I think with the amount of extra pitch down, stall speed isn't a factor, it just makes it a lower stalling speed… thinking about it now, when I flare without flaps it takes a bit more runway, and with the pitch up I loose sight of runway ahead, stalling speed becomes higher.Truth of the matter is I've been doing with full flaps and I've been making a safe land speed and stop distance, it is a matter to discuss with my instructors none the less

[Scote1992]

@Lochnil oh ok. I was always taught, that even though we were practicing, you have a better reaction time, because you're sort of expecting it. Taking away that, in a real situation your reaction time will be slightly less, add in that you may be climbing at Vx isntead of Vy, and by the time you pitch down you'll already be near stall speed

[Lochnil]

@Scote1992 You are right, the vx can be a bitch by then, you can only account with so much on a real situation…hopefully the best decision at the time…

[Lochnil]

On my flight school: "Pitch down, flaps full land the aircraft (safely :) )

[LetsFlyWa]

@Lochnil I've always trained to pitch down and go down. Adding flaps at that time could be a distraction in a real emergency as well as adding lift that very well could cause you to float beyond the end of the runway. The amount of drag added by light GA flaps is minimal when compared to the lift produced.

[Lochnil]

@LetsFlyWa I can relate to that, because in fact, when we simulate it, it becomes a problem to me just to bring it down… to much lift for the time we have to bring the aircraft asap to the ground, I believe it might be because of fear to stall the aircraft too early, to high… the runway where I train is quite long, and it is a "as required" feature in aircraft manual "engine failure immediately after take off emergency checklist"

[jeddah55]

Great Vid thanks.

[coleblocker]

First viewer!! Great videos! I really enjoy watching these videos as I am about to start training for my PPL. Very professionally done!