contactflying wrote:Very good. Also, why not make touchdown and bounce the same as rejected takeoff? Bouncing down again is not as hurtful as stall at a hundred feet. Or teach all takeoff or late go around as basic low ground effect takeoff? Or just teach power/pitch to touchdown on the numbers slowly and softly with power as default landing. Landing short of the deer sometimes works as well. Things going bad at 40 is a lot different than things going bad at 80.
Dog is my Copilot wrote:Due to the stall spin awareness emphasis being taught many students start their base and final turns by lowering the nose. Usually this pitch change is too steep and results in too high of an approach speed. Mild unloading of the wing is all that is needed and makes these turns safe and slow. This sets up a nice stabilized approach and reduces the need for a go-around. Also - current ACS PPL suggests doing slow flight demonstrations at well above where it was taught in the past. I was taught to ride the horn or buffet while maintaining altitude. I feel this is a great exercise. It teaches a better awareness of the progression to a stall. From mushy controls, to the stall horn signalling (mild to loud), to buffeting, and then breaking. It makes one comfortable flying slow. Today, students demonstrate slow flight with this ACS recommendation, "Establish and maintain an airspeed at which any further increase in angle of attack, increase in load factor, or reduction in power, would result in a stall warning (e.g., airplane buffet, stall horn, etc.)." Consequently, many people were trained in a way that makes them fearful flying at slower speeds.
I agree go-arounds need to be practiced - especially in airplanes with big bore engines. My airplane like many Cessnas has a very forward cg and during an approach with full flaps and little to no power the trim is set in the max up position. Application of full power will result in an abrupt nose up pitch requiring a serious workout nose down exercise. I have heard some people suggest using a less power during the go around but there are situations where this is not safe or practical. My practice is to apply full power, muscle the nose down (to safe pitch attitude), retract flaps to 20, adjust trim, and the slowly retract the flaps. Right rudder is required but pushing the nose down immediately is what will prevent the stall. I have to admit this procedure caught me off guard a few years ago because it had been a long time that I actually had to do a legitimate go around. The amount of nose down pressure was scary - I think mostly because it was unexpected. It is something I practice and teach now. It might make sense to use less nose up trim during landing in case there is a need for a go around.
Josh
contactflying wrote:Josh, using takeoff trim (checklist) rather than cruise trim (on my pipeline 172 I think it rusted there) and doing a basic low ground effect takeoff will result in the same pitch up. It you have students practice dynamic proactive elevator movement, same as getting the fuse level on a TW airplane, they find that it need not be so scary to push the nose down. Push it down, pull back up a bit, push it down a bit lower, back a bit...etc. It is a more comfortable way to find level in low ground effect.
Anyway the technique works on go around as well. They get a little more excited on go around, so the push to level the fuse and the push to stay in low ground effect practice will be triple dip with go around. Yes, they need to be in low ground effect on go around if they have waited way too long (really slow now) to initiate. They can zoom over the problem causing the go around with the outcome of the maneuver less in doubt. If they start way back and high, as they should, the have lots of vertical space available to push the nose down into. We got to get them thinking more about roller coasters and not depend on the engine so much.
A1Skinner wrote:contactflying wrote:Josh, using takeoff trim (checklist) rather than cruise trim (on my pipeline 172 I think it rusted there) and doing a basic low ground effect takeoff will result in the same pitch up. It you have students practice dynamic proactive elevator movement, same as getting the fuse level on a TW airplane, they find that it need not be so scary to push the nose down. Push it down, pull back up a bit, push it down a bit lower, back a bit...etc. It is a more comfortable way to find level in low ground effect.
Anyway the technique works on go around as well. They get a little more excited on go around, so the push to level the fuse and the push to stay in low ground effect practice will be triple dip with go around. Yes, they need to be in low ground effect on go around if they have waited way too long (really slow now) to initiate. They can zoom over the problem causing the go around with the outcome of the maneuver less in doubt. If they start way back and high, as they should, the have lots of vertical space available to push the nose down into. We got to get them thinking more about roller coasters and not depend on the engine so much.
Trim on a 172 doesn't pitch up like full nose up trim on a 180/185. Flying a 172 out of trim isn't really a big deal because it's not hard to fight. A early 182, 180s and 185s are much heavier to fly out of trim, and the pitch up that happens with full nose up trim and full power is not simple something you can work out with dynamic control movements. It's a very not dynamic HARD push forward until you get the trim set nose down a bit. It's not that it's scary to push it down, it's that you HAVE to push it down and it's a lot of work to do that.
I agree that things should not wait that long to make the decision, but sometimes it happens. And practicing for that experience is excellent. But I don't think comparing it to a C172 being out of trim is fair.
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