I tried setting my aiming point 300 feet before my touchdown point to account for the lower approach speed but I kept floating right past the touchdown point. I tried progressively reducing power and slowing down to 55 knots when about 100 feet above the runway but then it felt like I technically wasn't stabilized in the approach.
We tend to overemphasize stable approaches. I tell people you will recognize an unstable approach when you see it. You probably don't even need to be a pilot to recognize it. As long as you "smoothly" reduce the power and transition to 55 kt this is fine. The only, and good, reason not to approach at 55kts to begin with is to give you more protection from wind shear and turbulence on the approach.
What should my power setting be on approach? The less power I have the steeper my glide path will be which probably impacts float distance as well. Would a power setting of 1500 on final be ok? Should I try to do these with power at idle?
I tell my student 1500 should be the maximum RPM to start with, for short field it probably shouldn't normally be idle either just give you some room to adjust either up or down as needed.
1. On final, full flaps and pitch for 65 knots approach speed.
2. Pitch to maintain 65 knots and adjust power to maintain a glide path down to an aiming point.
3. Hold this aiming point at a fixed spot on your windshield.
4. When about 20 feet above the runway (in ground effect) and on glide path to your aiming point, reduce power to idle and pitch the nose up to a level attitude to roundout.
5. While floating down the runway in ground effect, progressively pitch to nose up more so as to hold the plane off the runway (the flare).
6. You should eventually touch down in a nose high attitude, near stalling speed, with the power fully out.
I normally float about 500 feet before I touch down, so if I wanted to touch down at the 1000 foot markers I would set my aiming point at the 500 foot markers.
What is the procedure for a short-field?
As I posted earlier if you are doing full flap approaches your normal approach is very close to a short field approach. differences are
. #1 You said 55 worked well at short final, when the airplane is light, plan on the 61 in the book if near gross. As I mentioned above I recommend transitioning to the slowest approach speed on short to very short final just do it "smoothly". Most pilots are flying attitude at this point instead of the Airspeed indicator anyway i.e. not looking at the Airspeed indicator any once below 100 to 50 feet and the begin the round out.
You didn't say what you use for power on a normal approach, I usually teach <1500RPM and 1/2 flaps, at full flaps you might be using more power for a normal approach. This is about the same angle and distance approach as the guys using full flaps and more power, but is less risky if wind shear, turbulence is encountered, or a go around is required. Also easier to raise the nose for flare. Also getting the nose up higher for the touchdown often results in an equal or slower touchdown speed and as short or shorter than the guy doing full flap landings but not getting the nose up (Yoke all the way back) before touch down. Short field of course is going to be full flaps, <1500RPM
#5 if you slow enough (nose pitched high enough) when you get to your spot you won't float much or any. It likely won't be a soft field landing as you sort of drop onto the runway.
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funny story, only because I didn't damage anything.
When I did my 182 checkout I came in really high on one of my approaches. Full flaps, power off didn't look like it was going to get me down, My CFI told me to slow down until the Stall warning squeaked and hold that airspeed. OF course there was a short pull up as slowed down, but then the decent angle really increased as I had a very low forward speed and a high descent rate. This works even better with a bit of a headwind. At about 200 feet he told me push the nose down, I looked him like why, and then did what he said. I obvious pulled up as we were then diving at the ground. I pulled back flared and did the nicest landing I did all day. Unfortunately I wasn't smart enough to ask more about that procedure.
So a couple days later while solo in the 152 is was thinking that was kind a cool procedure but didn't really understand the dive at the end of the approach. So I tried the same approach with the 152 but didn't lower the nose. At about 20 feet I realized I was coming down really fast and rotated/flared all the way back on the yoke. The plane barely slowed it's descent as we impacted the ground. It was one of maybe only 3 landings I have ever done where after rolling out I am looking around to make sure the wings and tail are still attached to the airplane. The lesson I learned that you need some energy to stop the descent (Airspeed (diving) or power)
Brian
CFIIG/ASEL