Forward slip in Cessna 172R

My instructor introduces forward slip to landing.

Category:

Sports

Tags:

• landing
• forward
• slip
• N996WW
• Cessna
• 172R

[spithakos]

That is side slip

[eugrtube]

@spithakos

Well, sideslip is when you are moving sideways, compensating for the crosswind. Forward slip is when your path remains the same, you just have an increased rate of descent - see "Airpane Flying Handbook" by FAA.

[spithakos]

@eugrtube No you don't move sideways when you sidesliping, you do compensate for crosswing (trying to eliminate the effect of crosswind pushing you out of the correct approach path) but you remain into the landing path. Of'course in sideslip which is one of the two methods for x-wind you do descend since you are approaching to land. Forward slip on the other hand is a technique used for loosing quickly alltitude not near the touch-down but during your appr. Siilar to the config. of sideslip.

[eugrtube]

@spithakos

We are talking about the same thing then ;-) Probably I wasn't that clear... In a sideslip, an airplane's longitudinal axis is aligned with the runway. A crosswind is pushing you sideways, and you use sideslip to stay on the path or to shift back to centerline. In a forward slip your main purpose is to create as much drag as possible, so you just apply full rudder and compensate for drift with ailerons.

So, what we did was a forward slip, just all the way to the landing.

[mytube1968]

Nice vid!

Not to spur the rant below, but why would you forward slip with your flaps up? If you are too high, you have some options before needing a forward slip.

First, if you are still in power, get out of it, since power is altitude.

Second, if your flaps are up, get them down, since that increases your decent angle.

THEN if you are still high you can forward slip, at minimum power, full flaps.

I'd say a strong crosswind is more of a flap argument than a slip is.

Just my 2 cents.

[eugrtube]

Well, I think slip without flaps still gives you steeper descent than full flaps without slip. However, in reality, your scenario is more appropriate. If I dump all flaps and this is not enough, I'll do a short slip with full flaps deployed. Actually, this is what I did on my exam. I told DPE that slips with full flaps are not recommended, but since we were practicing engine out in the pattern, and I was still high with full flaps, the slip was the only way to make a nice landing. I passed. :)

[DirectTech]

Your instructor needs to show you how to land on the center line. Sure, you were fine this time, but next time? If you accept 5 feet off is OK, down the line 6 feet off will be OK. Eventually, you'll have an issue like a gust of wind, or a flock of birds, and before you know it, you're landing on taxiway Bravo...

[LittleDrummer55]

@eugrtube or maybe the one guy is a 10 year old kid who thinks he knows everything about aviation because he can play flight simulator :P

[Sukhoi27K]

What happened to maintaining centerline?

[CA477544]

@FightingFalc0n I have never seen my instructor deviate from the center line, I got scolded when I deviate from the center line, it's dangerous.

[FightingFalc0n]

@dboy4ever what do you mean deviations. Lets see you land on the center line each time, while flying from the right, with your controls crossed. That was a great landing, showing the side slip method.

Hell, his left wheel would have been on the center line, thats not to bad. And anyway, the runways looks like its like 50m wide... plenty of room.

[dboy4ever]

Seriously, can't accept deviations from centerline like that

[yohan01]

Very smooth landing captain!

[mkortbek]

Next your instructor should introduce center-line landings hahahaha... excellent movie, really shows what it looks like from the cockpit when coming in to land~ Thumbs up!

[spithakos]

@eugrtube Exactly, yes we are talking about the same thing :))

Happy flying.

[spithakos]

@mytube1968 forward slip with full flaps must be avoided as described in te C172 manual.