Cessna 152/172 airspeeds
- Thread starter PGT
- Start date
clayfenderstrat
Well-Known Member
It's been awhile, but for the 172 I believe 2100 RPM at the numbers. 70 for downwind, 65 for base, then 60 for final. Somebody correct me if I am wrong, but this is what I remember...........
SpiraMirabilis
Possible Subversive
On a 152 I would do 60-65kts on final with 20' flaps, I don't really remember the power setting.
Cessnaflyer
Wooooooooooooooooooooooooooooooo
For both aircraft on a standard landing I use carb heat about 1000' before numbers 1500 RPM at the numbers, flaps 10 and 80 knots at this point.
Turn base power still 1500 now pitch for 70 and flaps 20.
Final is pitch for 60 and flaps 30 or if it is an older aircraft 40 if you are high and need to get down.
Yeah, 2000 and 80kts has worked for SW, 15-1600 and 65-70 for base, power as required and 60-ish for final.
CN94559
New Member
I didnt normally drop the flaps that much in my 152 unless I was fast/high, but other than that, I agree with the speeds.
jspeed87
Well-Known Member
+20 knots your final approach abeam the numbers, then 10 knots less for base, and 10 knots less for final. This is something I figured out on my own and works for the Cessna and the Dutchess and maybe for most training airplanes. For C172: abeam 80, base 70, and final 60. Dutchess: abeam 95, base 85, final 76.
Both 152/172 set up:
A beam the landing mark:
Base:
Final:
For newer 172s this is spot on, even shocked the heck out of a 10k airline captain that did a checkout with me with this procedure. A slight forward pressure on the nose with each introduction of flaps to avoid heavy oscillations, other than that, hands off and let the puppy fly herself. The 152 can be slightly more finicky, but still fairly on mark.
- Takeoff, trim for Vy.
- Pattern at Vy trim is typically between 1800-2000 RPM.
- 152 yielded airspeed ~90 knots
- 172 yielded airspeed ~100 knots
- Power for level flight, leave the trim at Vy setting
A beam the landing mark:
- Power 1500
- Pitch till within safe flap range
- Flaps to 10
- Yielded airspeed for both aircraft ~75 knots
- No trim change needed
Base:
- Flaps 20
- Yielded airspeed for both ~70 knots
- No trim change needed
Final:
- Flaps 30 (I am unsure for the 172s that have 40 degrees)
- Yielded airspeed for both ~65 knots
- No trim change needed
For newer 172s this is spot on, even shocked the heck out of a 10k airline captain that did a checkout with me with this procedure. A slight forward pressure on the nose with each introduction of flaps to avoid heavy oscillations, other than that, hands off and let the puppy fly herself. The 152 can be slightly more finicky, but still fairly on mark.
aviategw
Well-Known Member
I would instruct my students to keep the airspeed above 70 KIAS until established on final, after the base turn is complete. A 152/172 isn't going to run over much of anything in the pattern, so downwind speeds are situation specific.
To be sure, you can stall at any airspeed. However, it's quite a bit more difficult to get a 172, or especially a 150/152, into a stall at 70 KIAS. No stall means no base to final spin, the most dangerous part of the pattern for the student.
My .02$ worth.
To be sure, you can stall at any airspeed. However, it's quite a bit more difficult to get a 172, or especially a 150/152, into a stall at 70 KIAS. No stall means no base to final spin, the most dangerous part of the pattern for the student.
My .02$ worth.
R
Roger, Roger
Guest
2200 downwind, 100 KIAS.
Abeam the landing point, throttle 1500, flaps 10, slow to and descend at 85.
Turning base, flaps 20, hold pitch attitude the same to slow to 75.
Turning final, flaps 30, hold pitch attitude the same, slow to 65.
Final at 65 until roundout and flare. Haven't played around with the 40 degree flap 172s enough to have a consistent system on them, but whatever works to end up on final with flaps full (oh yes, I really do use full flaps! Oh teh noez!) at 65 Kts/70Mph.
Abeam the landing point, throttle 1500, flaps 10, slow to and descend at 85.
Turning base, flaps 20, hold pitch attitude the same to slow to 75.
Turning final, flaps 30, hold pitch attitude the same, slow to 65.
Final at 65 until roundout and flare. Haven't played around with the 40 degree flap 172s enough to have a consistent system on them, but whatever works to end up on final with flaps full (oh yes, I really do use full flaps! Oh teh noez!) at 65 Kts/70Mph.
TXTBOOK
Well-Known Member
You have notches on your flap control device (what is that thing called?)? On our 172M you just hold it down until you get the desired flap degree. Not a set-and forget thing, you have to hold it down until it gets to 20 degreees, etc.
wjmiller3
Well-Known Member
Sounds like everyone pretty much does whatever they want
Yep! I come in 10kts faster than everybody listed here (75kts), slowing on VERY short final to 65kts, I hate going slow.. And I land 172's with only 20 degrees. Granted I am landing on a 7000ft runway
OMG, your going to kill yourself. You know closing the throttle at that speed is going to shock cool the engine!
You will burst into flames and die. It's almost as bad as running oversquare!Say it like this "Downwind abeam carb heat and 15" Flaps 10. Turn base, flaps 20, turn final flaps 30.
Pitch for your airspeeds and done correctly (i.e. turns at the right times, proper pitch att. for air speed), and you will only have to close the throttle over the fence. Air speed is not quite irrevelent, but it is important to keep the airplanes enegry up so you have enough left for the flare, and stay far enough away from a stall in the pattern.
150's I use 21-2300 in the down wind at altitude when I fly, and use that as a suggestion for my students (I let them find something that works for them). In the 172's the same. Just maintain altitude with power, and leave the damn trim alone. I see to many people over using the trim, constantly ajdusting trim and power and mucking everything up! Just hold the damn airplane where you need it with a little pressure on final, and use your power to stay at altitude in the downwind.
Slugger
Well-Known Member
No, haha, I just hold it down for like 3 seconds.