@TheMattys4 A Digital8 camcorder. It has an input jack for an external stereo mic. I made an adaptor which fed an external monaural mic to the left channel stereo mic input, and a resistive pad to connect an extra headset jack in the aircraft to the right channel stereo mic input. This allowed me to adjust the volume of ambient cockpit sound and ATC/intercom audio independently in post-flight editing. You can't hear it in this video because YouTube mixed the two channels into one.
This was realy a very light slip...: i use common this technic with a Skyranger UL (same dimentions as the C152) but to land on my very short grass strip, i think you need a bit practice to take it better...
The camera angle makes it impossible to see what the video is trying to show you how to do. Plus, 2 min of video, and 10 seconds of slip. Needs to be better edited.
Well, it depends on the aircraft. Most of the Cessna POH's do say to "avoid" doing slips with certain flap configurations, but does not prohibit you to do them.
A slip is a slip. Nothing is aerodynamically different from a forward slip to a side slip.
The controversy has been going on along time about whether to follow the manufacturer's recommendations. Their concern is that there will be a lose of elevator authority or airflow disturbance over the horizontal stabilizer.
I guess I should chime in on this "flaps with slips" issue.
First off, this video is in a C-152, which is *not* a C-172.
Second, I happen to have a POH for a 1981 C-172P which states the following under "Normal Procedures - Landing":
"Steep slips should be avoided with flap settings greater than 20 degrees due to a slight tendency for the elevator to oscillate under certain combinations of airspeed, sideslip angle, and center of gravity loadings."
If I were in a C-172P with full flaps already in and I found I was too high, I would *not* retract flaps so I could do the slip. Rather, I'd either go-around and try again, or do a forward slip of increasing steepness and see how it goes. If I start to get slight elevator oscillations, shallow the slip angle or go around. I'm not a CFI. YMMV. Be careful.
The camcorder has a stereo mic jack. A regular mic was wired to the left channel and the aircraft radio audio was wired to the right channel (through a resistive pad). YouTube didn't preserve the channels -- it merged them into a single mono channel -- but that's OK. With my local copy, however, I can adjust the levels of either channel independently to control how much ambient cockpit noise vs. radio chatter according to what I want.
Excellent forward slip and landing.. I'm currently on the verge of completing my commercial license (I already have my private with an instrument rating) and my instructor today had me do a power-out 180 in a C-152, which is the aircraft I have the most time in. I had to shake about 600 feet in a 1/2 mile so i did a forward slip and hit my mark on the dot.. i was really quite please with it.. lots of fun!
Thanks! I also got my instrument rating since posting the above video, and am weeks away (hopefully) from taking my commercial checkride. Good luck on yours!
for 'unkepthope' (posted a year ago) you're not making the plane heavier. it will remain the same weight throughout the flight except for fuel burn. what is really happening in a slip is you are forcing the airplane to be less aerodynamic yet still flying in a straight bath by the use of opposite rudder and aileron. the plane being less "able to fly" makes it descend much quicker and less aerodynamic which allows it from picking up airspeed during the descent.
great slip and landing, perfect situation for one, but it sounded like you used flaps. remember not to use too many degrees of flaps as you can disrupt airflow over the tail and lose complete control of both the rudder and elevator.
certified yes. but read the POH and flaps are "not recommended. i dont think the FAA gives anyone a pilots license if they dont know anything about flying, so i take it you dont have one.
be my guest to be another ntsb report. flaps are "not recommended" because of the effect it has on the rudder and elevator. if you dont think i'm making sense then look it up or ask a good pilot who knows his shit, obviously you dont.
Tango, please reference the section of the POH that states "flaps are not recommended". Im looking at the section on landings and it states. "Normal landing:Wing flaps-AS DESIRED(below 85 KIAS)" There is nothing in the Normal Procedures section or the Airplane and Systems Description section that says too many degrees of flaps are not recommeded. Also, could you explain why flaps would affect the rudder or elevator. Thank you.
KrOnOs13-I looked through a 1977 C-172 POH that i had right next to me and I as well did not find a section on slips but I have for a fact read that from a POH, whether it was a C-150/152/172. who knows what year it was but an instructor pointed it out to me one day. what i'm trying to get at is that we as pilots learn from others mistakes. i'm not saying flaps is PROHIBITED with slips but if you choose to do so, research and understand what the outcome could be. i'll find a link for everyone.
there's a placard right beneath the flap lever in the C-172 that states, "avoid slips with flaps extended". seriously i don't know the reason... but would be cool to find it.
Hi, I'm a student pilot, just turned 15 yesterday. I must say this foward slip is a good refresher! Great job. If that was me I would of done a balked landing but hey, you lost altitude quick. Also, when you land you keep your yoke out all the way, i always do that. especially w/ touch and goes. I just completely 5 touch and goes in a 172 on sun. It was excitin. I cant wait to solo at 16, get my ppl at 17!
Generally you do it the same way -- so that the pilot, who is normally seated on the left side, has good visibility to the runway. If you tip the wings to the right and use rudder to kick the nose to the left, you end up with the nose of the airplane blocking your view a bit if you're seated in the left seat. You don't do the forward slip until you are already established on final approach, so the direction of your traffic pattern doesn't matter.
The Direction of the slip is usually based on the direction of the cross wind... The more side area you expose to the cross wind, the more form drag you create, allowing the airplane to descend at a greater rate...
It's kinda hard to see in the video, but it's a cross-controlled maneuver: ailerons (yoke or wheel) to the left -- to bank the wings to the left -- and opposite rudder which kicks the nose to the right. You must also push in on the yoke to get the nose down a bit more and maintain airspeed. The maneuver can be dangerous in some airplanes/configurations or if done incorrectly. Done correctly and appropriately, it's a perfectly legitimate way to come in for a landing.
Yes it is. In fact every private pilot must have practiced this manuever with his instructor cause its a great way of loosing altitude fast without gaining airspeed. What everyone has to understand about this, is that you are making the plane heavier (since a plane banking is heavier) and you are getting less and less coordinated...basically you are not letting the plane be as aerodinamical and at its best for lift. And if you dont put your nose down...you will stall for sure.
How did you get to record the atc audio?
TheMattys4 1 month ago
@TheMattys4 A Digital8 camcorder. It has an input jack for an external stereo mic. I made an adaptor which fed an external monaural mic to the left channel stereo mic input, and a resistive pad to connect an extra headset jack in the aircraft to the right channel stereo mic input. This allowed me to adjust the volume of ambient cockpit sound and ATC/intercom audio independently in post-flight editing. You can't hear it in this video because YouTube mixed the two channels into one.
apebiz 1 month ago
This was realy a very light slip...: i use common this technic with a Skyranger UL (same dimentions as the C152) but to land on my very short grass strip, i think you need a bit practice to take it better...
oiseautempete 8 months ago
The camera angle makes it impossible to see what the video is trying to show you how to do. Plus, 2 min of video, and 10 seconds of slip. Needs to be better edited.
shadowmastertx 1 year ago
good
MrSpykumar 1 year ago
good
MrSpykumar 1 year ago
Worked out real nice.
b26maurader 2 years ago
i thought it was not safe to do a forward slip with flaps...
zorro051969 2 years ago
Well, it depends on the aircraft. Most of the Cessna POH's do say to "avoid" doing slips with certain flap configurations, but does not prohibit you to do them.
A slip is a slip. Nothing is aerodynamically different from a forward slip to a side slip.
The controversy has been going on along time about whether to follow the manufacturer's recommendations. Their concern is that there will be a lose of elevator authority or airflow disturbance over the horizontal stabilizer.
Ask a CFI!
BB10Pilot 2 years ago
Did you apply power right after coming out of the slip?
chanrobi 3 years ago
haha, no we just talked on facebook. Instrument
zseartcc25 3 years ago
Shannon, so tight man!!!
zseartcc25 3 years ago
Ha! Thanks!
Where you at in your certificates these days anyway? CFI? CFII? MEI?
apebiz 3 years ago
@apebiz Hey great video! just wondering how you connected the airplane radio into the camera?
caseyboy1123 1 year ago
How do you record the radio audio?
avdrummerboy 3 years ago
Very, very nice!
BmsClassic716 3 years ago
I hate the dispute of doing a forward slip with full flaps, It is safe
cmgriffi 3 years ago
TangoYankee is right...I own a Cessna 172 and using flaps with slips are not recomended. You can do it, but its not very wise
rdelaney9984 3 years ago
I guess I should chime in on this "flaps with slips" issue.
First off, this video is in a C-152, which is *not* a C-172.
Second, I happen to have a POH for a 1981 C-172P which states the following under "Normal Procedures - Landing":
"Steep slips should be avoided with flap settings greater than 20 degrees due to a slight tendency for the elevator to oscillate under certain combinations of airspeed, sideslip angle, and center of gravity loadings."
apebiz 3 years ago
If I were in a C-172P with full flaps already in and I found I was too high, I would *not* retract flaps so I could do the slip. Rather, I'd either go-around and try again, or do a forward slip of increasing steepness and see how it goes. If I start to get slight elevator oscillations, shallow the slip angle or go around. I'm not a CFI. YMMV. Be careful.
apebiz 3 years ago
It is still safe to do a forward slip with full flaps extended! But, yes, when in doubt, go around!
cmgriffi 3 years ago
Lest we forget that in some aircraft also gravity feed can be halted by doing full flap slips.
avdrummerboy 3 years ago
@apebiz
I fly the 172S equipped with a Garmin G1000. I believe that for that model the limitation of 20-degrees flaps has been eliminated.
AVIATIO 1 year ago
Cool video.
What did you do to pick up the ATC that well??
It sounds very nice and clear.
TangoDelta29 3 years ago
The camcorder has a stereo mic jack. A regular mic was wired to the left channel and the aircraft radio audio was wired to the right channel (through a resistive pad). YouTube didn't preserve the channels -- it merged them into a single mono channel -- but that's OK. With my local copy, however, I can adjust the levels of either channel independently to control how much ambient cockpit noise vs. radio chatter according to what I want.
apebiz 3 years ago
Excellent forward slip and landing.. I'm currently on the verge of completing my commercial license (I already have my private with an instrument rating) and my instructor today had me do a power-out 180 in a C-152, which is the aircraft I have the most time in. I had to shake about 600 feet in a 1/2 mile so i did a forward slip and hit my mark on the dot.. i was really quite please with it.. lots of fun!
great video. ;-)
X6insane6X 3 years ago
Thanks! I also got my instrument rating since posting the above video, and am weeks away (hopefully) from taking my commercial checkride. Good luck on yours!
apebiz 3 years ago
Side Slip.
mithat87 4 years ago
for 'unkepthope' (posted a year ago) you're not making the plane heavier. it will remain the same weight throughout the flight except for fuel burn. what is really happening in a slip is you are forcing the airplane to be less aerodynamic yet still flying in a straight bath by the use of opposite rudder and aileron. the plane being less "able to fly" makes it descend much quicker and less aerodynamic which allows it from picking up airspeed during the descent.
tangoyankee28 4 years ago
great slip and landing, perfect situation for one, but it sounded like you used flaps. remember not to use too many degrees of flaps as you can disrupt airflow over the tail and lose complete control of both the rudder and elevator.
tangoyankee28 4 years ago
You sure don't know anything about flying... Airplanes are certified to use any flap settings available.
TheFlyDude 4 years ago
shooo we still have stalls and spins for PPL.
Most clubs I think are happy not to have it anymore as this puts strain on a/c. Esp that poor AH.
ml8ml8 4 years ago
certified yes. but read the POH and flaps are "not recommended. i dont think the FAA gives anyone a pilots license if they dont know anything about flying, so i take it you dont have one.
tangoyankee28 4 years ago
Remember not to use to many degrees of words or you might loose control of making sense.
danetrain0101 4 years ago
be my guest to be another ntsb report. flaps are "not recommended" because of the effect it has on the rudder and elevator. if you dont think i'm making sense then look it up or ask a good pilot who knows his shit, obviously you dont.
tangoyankee28 4 years ago
Tango, please reference the section of the POH that states "flaps are not recommended". Im looking at the section on landings and it states. "Normal landing:Wing flaps-AS DESIRED(below 85 KIAS)" There is nothing in the Normal Procedures section or the Airplane and Systems Description section that says too many degrees of flaps are not recommeded. Also, could you explain why flaps would affect the rudder or elevator. Thank you.
Kr0n0s13 4 years ago
KrOnOs13-I looked through a 1977 C-172 POH that i had right next to me and I as well did not find a section on slips but I have for a fact read that from a POH, whether it was a C-150/152/172. who knows what year it was but an instructor pointed it out to me one day. what i'm trying to get at is that we as pilots learn from others mistakes. i'm not saying flaps is PROHIBITED with slips but if you choose to do so, research and understand what the outcome could be. i'll find a link for everyone.
tangoyankee28 4 years ago
there's a placard right beneath the flap lever in the C-172 that states, "avoid slips with flaps extended". seriously i don't know the reason... but would be cool to find it.
gabrielzanchi 3 years ago
I've heard it disrupts the airflow over the elevator.
SNiperAlo 3 years ago
Hi, I'm a student pilot, just turned 15 yesterday. I must say this foward slip is a good refresher! Great job. If that was me I would of done a balked landing but hey, you lost altitude quick. Also, when you land you keep your yoke out all the way, i always do that. especially w/ touch and goes. I just completely 5 touch and goes in a 172 on sun. It was excitin. I cant wait to solo at 16, get my ppl at 17!
BB10Pilot 4 years ago
Love the vid, as calltheglassman said, they should be done into the wind though, it will make Xwinds much easier that way.
juxtapilot 4 years ago
nice...what's the reg of that 152? It's the same airport I'm taking my lessons at, so possibly the same aircraft if you're renting from HIO aviation
FlyingPie946LJ 5 years ago
That's N757BW, not an HAI plane. Just like my favorite 152, N757LY. :D
juxtapilot 4 years ago
I GUESS IF YOU WALK AWAY AFTER LANDING THATS A GOOD LANDING
Buck1507 5 years ago
Can this be done opposite when in opposite pattern?
myatt315 5 years ago
Generally you do it the same way -- so that the pilot, who is normally seated on the left side, has good visibility to the runway. If you tip the wings to the right and use rudder to kick the nose to the left, you end up with the nose of the airplane blocking your view a bit if you're seated in the left seat. You don't do the forward slip until you are already established on final approach, so the direction of your traffic pattern doesn't matter.
apebiz 5 years ago
The Direction of the slip is usually based on the direction of the cross wind... The more side area you expose to the cross wind, the more form drag you create, allowing the airplane to descend at a greater rate...
Calltheglassman 4 years ago
Forward slip . . .Do you raise the nose to loose alt and not gain speed? I don't understand "slip"
myatt315 5 years ago
It's kinda hard to see in the video, but it's a cross-controlled maneuver: ailerons (yoke or wheel) to the left -- to bank the wings to the left -- and opposite rudder which kicks the nose to the right. You must also push in on the yoke to get the nose down a bit more and maintain airspeed. The maneuver can be dangerous in some airplanes/configurations or if done incorrectly. Done correctly and appropriately, it's a perfectly legitimate way to come in for a landing.
apebiz 5 years ago
Yes it is. In fact every private pilot must have practiced this manuever with his instructor cause its a great way of loosing altitude fast without gaining airspeed. What everyone has to understand about this, is that you are making the plane heavier (since a plane banking is heavier) and you are getting less and less coordinated...basically you are not letting the plane be as aerodinamical and at its best for lift. And if you dont put your nose down...you will stall for sure.
unkepthope 5 years ago
Mate, don't know if you know, but now the Spin has been taken off the JAA PPL course, sucks, it should be taught.
olibarke 4 years ago
Oh! :( When did that happen?
JagsPPL 4 years ago
i dunno, was a while aho i think, it sound stupid to me not to learn that anymore!
olibarke 4 years ago