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Dec 27th, 2009 at 10:52pm

Thud   Offline
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Hey everybody! I was just curious, in real flight training, when do you go over spins?
Thanks!
Cool
 

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Reply #1 - Dec 27th, 2009 at 10:57pm

Mobius   Offline
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Usually never, unless you do specific spin training.  They're talked about, but usually never demonstrated.
 

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Reply #2 - Dec 27th, 2009 at 11:20pm

DaveSims   Offline
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Mobius wrote on Dec 27th, 2009 at 10:57pm:
Usually never, unless you do specific spin training.  They're talked about, but usually never demonstrated.


That was something I never agreed with.  I think everyone at some point should conduct actual training on spins, although it helps to talk it through first, and have a competent instructor.  One instructor that tried to do spin training with me was quite frankly scared of them.  After doing one, he decided that was good enough and never did them again.  I believe the reason the FAA doesn't require the actual training is because if done improperly can cause crashed (which it has), and not all training aircraft are spin qualified.  I imagine those learning in Cirrus aircraft will never do actual spin training.
 
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Reply #3 - Dec 28th, 2009 at 9:42am

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Believe the only check ride requirement is for Certified Flight Instructor but, in a lot of cases since the plane isn't spin approved, this is waived.  An intentional spin is fairly thrilling and often helps in recognizing the unintentional one which has a higher thrill factor.
 

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Reply #4 - Dec 28th, 2009 at 7:58pm

Mobius   Offline
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I agree that doing an actual spin should be required.  I had talked about spins with my instructor and I knew what I had to do to recover, but when I actually did my first spin, everything essentially went out the window and it was a real eye opener to try to remember everything while spinning.
 

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Reply #5 - Dec 28th, 2009 at 9:12pm

olderndirt   Offline
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Mobius wrote on Dec 28th, 2009 at 7:58pm:
I agree that doing an actual spin should be required.  I had talked about spins with my instructor and I knew what I had to do to recover, but when I actually did my first spin, everything essentially went out the window and it was a real eye opener to try to remember everything while spinning.
Most general aviation type planes will try to recover themselves, hands off, which brings to mind the old saying about 'the difficulty in draining the swamp when the reptiles become a nuisance'.  Of course much depends on your altitude when the spin began.  Smiley.
 

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Reply #6 - Dec 29th, 2009 at 12:03am

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I did my spin training in a Cessna 152 Aerobat, which spins rather easily, but go up to the 172 and it's very difficult to get it to spin much more than a half turn.
 

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Reply #7 - Dec 29th, 2009 at 4:59am

C   Offline
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Thud wrote on Dec 27th, 2009 at 10:52pm:
Hey everybody! I was just curious, in real flight training, when do you go over spins?
Thanks!
Cool


To add to the previous replies, the ideal place to fit them in, if you are going to do them (and I'm one of those people who thinks that even an hours spinning is worth the experience) is just after the academic stalling, before you bash the circuit and go solo. If not, then just after you solo and consolidation in the circuit - before you're let loose away from the airfield, which is when people might just make a little mistake - or be tempted to do something they've not been trained to do, and that wing suddenly decides to drop visciously.
 
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Reply #8 - Dec 29th, 2009 at 5:14am

Hagar   Offline
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In 1962 stall & spin recovery was a mandatory part of the PPL syllabus before being allowed solo. I'm not sure when this was changed but I always thought it was a mistake.
 

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Reply #9 - Dec 29th, 2009 at 9:01am

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I had spin training during my aerobatics training. It was explained in PP and COM but not demonstrated.
 
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Reply #10 - Dec 29th, 2009 at 10:06am

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A lot of spinning is really hard on gyro instruments.  The spin they used to teach - straight up, step on the rudder was not the one you'll encounter during your everyday flight.  Most pilots notice an increasing angle of attack, wings level, but it's the turn that gets them.  Only aerobatic training can provide a look at the snap-like over the top disorientation of this type of spin.
 

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Reply #11 - Dec 29th, 2009 at 11:24am

C   Offline
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Hagar wrote on Dec 29th, 2009 at 5:14am:
In 1962 stall & spin recovery was a mandatory part of the PPL syllabus before being allowed solo. I'm not sure when this was changed but I always thought it was a mistake.


Yep, as the crash at Southend highlighted a couple of years ago when a young chap spun in on the downwind leg. I'm not saying it would have saved him, but at least having the knowledge gives you a fighting chance of at least recognising and correcting an incipient spin.
 
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Reply #12 - Dec 29th, 2009 at 11:37am

beaky   Offline
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olderndirt wrote on Dec 29th, 2009 at 10:06am:
A lot of spinning is really hard on gyro instruments.  The spin they used to teach - straight up, step on the rudder was not the one you'll encounter during your everyday flight.  Most pilots notice an increasing angle of attack, wings level, but it's the turn that gets them.  Only aerobatic training can provide a look at the snap-like over the top disorientation of this type of spin.


Good points. And there's the fact that in the US, spins were taken out of the PP requirements because of spin accidents... and considering that most non-training stall/spin accidents occur at altitudes too low for recovery (they usually don't even have time to develop a proper spin), "recognition and recovery" has been proven to work well enough, provided the pilot understands what's going on and pays attention when maneuvering.

I agree that at least one aerobatic lesson should be encouraged, but not required. I didn't get to do any spins during my acro lesson (too hazy, in the CFI's opinion, for vertical-line stuff), but the other upset-recovery exercises were useful.
I managed to talk a previous instructor into demonstrating a spin in a 172 during a dual flight...did about 1/2 turn of a fully-developed upright spin. The most illuminating thing about that was how difficult it was to get a Skyhawk to spin. Took a lot of effort, which makes you wonder how anybody could let an airplane get away from them to such an extent.  I guess the bottom line is that no regulation can fix lassitude or plain stupidity.

Since most trainers are reluctant to spin, it seems sufficient to have the student practice stalls, particularly accelerated stalls, with some variation in how much rudder is applied, to show how critical it is to keep the ball centered (in addition, of course, to keeping the wing flying). And once a pilot is turned loose with a PP cert., stalls should continue to be practiced.
 

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Reply #13 - Dec 29th, 2009 at 1:14pm

C   Offline
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beaky wrote on Dec 29th, 2009 at 11:37am:
[
Good points. And there's the fact that in the US, spins were taken out of the PP requirements because of spin accidents... and considering that most non-training stall/spin accidents occur at altitudes too low for recovery (they usually don't even have time to develop a proper spin), "recognition and recovery" has been proven to work well enough, provided the pilot understands what's going on and pays attention when maneuvering. 


And the USAF had it's issues too, which ultimately led to the destruction by bulldozer of quite a lot (100+) of perfectly good Slingsby Fireflys (the ill fated T-3A).
 
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Reply #14 - Dec 29th, 2009 at 2:56pm

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beaky wrote on Dec 29th, 2009 at 11:37am:
stalls should continue to be practiced.
I always liked to believe I practiced one each flight - power off, at touchdown  Smiley.
 

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Reply #15 - Dec 29th, 2009 at 4:27pm

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olderndirt wrote on Dec 29th, 2009 at 2:56pm:
beaky wrote on Dec 29th, 2009 at 11:37am:
stalls should continue to be practiced.
I always liked to believe I practiced one each flight - power off, at touchdown  Smiley.

Technically that's true... not to mention the maneuvers, low and slow, required to make an approach.  Wink

But I like to practice MCA and stalls at altitude, also... going a bit slower and maneuvering more than I might in the pattern. Power-on  ("takeoff") stalls, also. Reinforces good habits.

My favorite, which I really never worked on until I got into soaring, is repeated, incipient accelerated stalls in a steep turn... you pull back a little more than you "should", let it buffet, then release the back pressure a little while still turning... then do a few more. Generally, pilots are trained to do a full accelerated stall, then recover to wings-level. I like this other technique, because it's more useful to be able to arrest the stall without abandoning the turn (could save your life in a box-canyon or sucker-hole type of situation).
  Gives you a very good feel for the "danger zone" in a particular plane, for those times you are low and slow and banking, but not paying attention to the ASI.  And unlike waiting until you really need to react quickly, if you screw it up, you'll have room to recover.  Grin

In general, I think this stuff is just fun: recovery stalls (stall, then hold back pressure thru recovery and into another stall), falling leaf (get the plane "mushing" to the point where it's descending nose-high, then use rudder to lower and raise each wing). These exercises help me feel more comfortable (but not complacent) with the plane.
 

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Reply #16 - Dec 29th, 2009 at 5:45pm

DaveSims   Offline
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beaky wrote on Dec 29th, 2009 at 4:27pm:
olderndirt wrote on Dec 29th, 2009 at 2:56pm:
beaky wrote on Dec 29th, 2009 at 11:37am:
stalls should continue to be practiced.
I always liked to believe I practiced one each flight - power off, at touchdown  Smiley.

Technically that's true... not to mention the maneuvers, low and slow, required to make an approach.  Wink

But I like to practice MCA and stalls at altitude, also... going a bit slower and maneuvering more than I might in the pattern. Power-on  ("takeoff") stalls, also. Reinforces good habits.

My favorite, which I really never worked on until I got into soaring, is repeated, incipient accelerated stalls in a steep turn... you pull back a little more than you "should", let it buffet, then release the back pressure a little while still turning... then do a few more. Generally, pilots are trained to do a full accelerated stall, then recover to wings-level. I like this other technique, because it's more useful to be able to arrest the stall without abandoning the turn (could save your life in a box-canyon or sucker-hole type of situation).
  Gives you a very good feel for the "danger zone" in a particular plane, for those times you are low and slow and banking, but not paying attention to the ASI.  And unlike waiting until you really need to react quickly, if you screw it up, you'll have room to recover.  Grin

In general, I think this stuff is just fun: recovery stalls (stall, then hold back pressure thru recovery and into another stall), falling leaf (get the plane "mushing" to the point where it's descending nose-high, then use rudder to lower and raise each wing). These exercises help me feel more comfortable (but not complacent) with the plane.


I also like to take a plane up to altitude, and see how it handles in different situations.  I will fly it in different attitudes in slow flight, with different flap settings and the like.  It really gives you more confidence in what the airplane will do, and your ability to handle the aircraft.  I have even taken the Cherokee all the way to the point where it is no longer flying, but just slowly descending with full aft trim, full flaps, and idle throttle.  Training for the PPL usually doesn't require that thorough knowledge of the handling of the aircraft.
 
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Reply #17 - Dec 29th, 2009 at 10:15pm

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My aerobatic training was in the Decathalon. That little airplane will do just about anything...and it spins really well.

My instructor always told me, "If you see me leaving, try and keep up..."

Of course we had 'chutes on.
 
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Reply #18 - Dec 30th, 2009 at 12:55am

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Hey guys,

I've just done my GFPT and it is part of the course I did to go out in a Decathlon for an hour and practice spins and recoveries not just talking about them, find it hard to believe schools wouldn't take students out and force spins on them and have them recover... Thought everyone would do it...

We did that along with the normal stalls and spiral dives etc. in the Cessna 172. We had all that done before being allowed to go solo I think, at least before area solo was granted... There might be risks involved with the training but in the right hands they should be minimal shouldn't they? Also don't the benefits of the training outweigh the risk? I've got no real experience but it seems to me the training is good for new pilots... Then again I'm only just starting flying so what do I know?
 
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Reply #19 - Dec 30th, 2009 at 1:44pm

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Hi,

Think about the spin, it's the stall of a wing that hasn't been recognised and stopped at the incipient stage.
With modern wings that are more likely to be a near perfect mirror image of the other, the amount of lift from both wings is going to be very close preventing one wing from dropping, you end up with the aircraft 'mushing' I think my instructor called it.
Bare in mind this was in gliders, in wood/fabric type the wings were unlikely to be perfect image of each other and all glass gliders, it could be prevoked more by having a more rearward CG.

Steve
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Reply #20 - Dec 30th, 2009 at 1:50pm

C   Offline
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EVVFCX wrote on Dec 30th, 2009 at 1:44pm:
Hi,

Think about the spin, it's the stall of a wing that hasn't been recognised and stopped at the incipient stage.


Unless it's deliberate. Wink

Quote:
With modern wings that are more likely to be a near perfect mirror image of the other, the amount of lift from both wings is going to be very close preventing one wing from dropping, you end up with the aircraft 'mushing' I think my instructor called it.


Yep. The Grob Tutor (as based near you at Church Fenton) is a very good example of that, very benign around the stall, being the aircraft that RAF studes do their first spinning - but also being an aircraft which actually pretty much recovers from either an incipient or full spin by itself (with the controls centred of course!).
 
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Reply #21 - Dec 30th, 2009 at 4:33pm

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EVVFCX wrote on Dec 30th, 2009 at 1:44pm:
Hi,

Think about the spin, it's the stall of a wing that hasn't been recognised and stopped at the incipient stage.
With modern wings that are more likely to be a near perfect mirror image of the other, the amount of lift from both wings is going to be very close preventing one wing from dropping, you end up with the aircraft 'mushing' I think my instructor called it.
Bare in mind this was in gliders, in wood/fabric type the wings were unlikely to be perfect image of each other and all glass gliders, it could be prevoked more by having a more rearward CG.

Steve
Solo on K13 k21 K8 and K23's gliders in the 90's.



An interesting observation, but it's possible to spin an airplane with perfectly-matched wings; people do it all the time, intentionally or by accident.
 

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Reply #22 - Dec 30th, 2009 at 10:05pm

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A 'Box Canyon turn', as it's simetimes called, is essentially a stall turn.  Ease off the power, pitch up and input full rudder.  Catch it about the 180 point and recover going the other way.  If you didn't hit the canyon wall, start working on your story  Smiley.
 

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Reply #23 - Jan 6th, 2010 at 1:40pm

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I practiced spin recovery with my dad in our Cub, so if you know someone that will teach, it would probably be worth it. It is true that most trainers nowadays don't spin easily, but it can happen, usually at low altitude, or in icing conditions. Avoidance can only work if you know what it is you're avoiding. You may not always be flying a trainer.

beaky wrote on Dec 30th, 2009 at 4:33pm:
EVVFCX wrote on Dec 30th, 2009 at 1:44pm:
Hi,

Think about the spin, it's the stall of a wing that hasn't been recognised and stopped at the incipient stage.
With modern wings that are more likely to be a near perfect mirror image of the other, the amount of lift from both wings is going to be very close preventing one wing from dropping, you end up with the aircraft 'mushing' I think my instructor called it.
Bare in mind this was in gliders, in wood/fabric type the wings were unlikely to be perfect image of each other and all glass gliders, it could be prevoked more by having a more rearward CG.

Steve
Solo on K13 k21 K8 and K23's gliders in the 90's.



An interesting observation, but it's possible to spin an airplane with perfectly-matched wings; people do it all the time, intentionally or by accident.


It's most likely to happen on base-to-final, when you are slow, with a high bank angle.

olderndirt wrote on Dec 30th, 2009 at 10:05pm:
A 'Box Canyon turn', as it's simetimes called, is essentially a stall turn.  Ease off the power, pitch up and input full rudder.  Catch it about the 180 point and recover going the other way.  If you didn't hit the canyon wall, start working on your story  Smiley.


I was taught to do a canyon turn by just slowing down, putting out about 20 - 30 degrees of flaps (in a 185), and gingerly doing a tight turn with lots of power. Spinning it around seems like it would use too much altitude for it to be safe. However, that could be used as a last resort, I guess.
 

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Reply #24 - Jan 6th, 2010 at 1:52pm

olderndirt   Offline
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specter177 wrote on Jan 6th, 2010 at 1:44pm:
olderndirt wrote on Dec 30th, 2009 at 10:05pm:
A 'Box Canyon turn', as it's simetimes called, is essentially a stall turn.  Ease off the power, pitch up and input full rudder.  Catch it about the 180 point and recover going the other way.  If you didn't hit the canyon wall, start working on your story  Smiley.


I was taught to do a canyon turn by just slowing down, putting out about 20 - 30 degrees of flaps (in a 185), and gingerly doing a tight turn with lots of power. Spinning it around seems like it would use too much altitude for it to be safe.
Thinking about it, not so much a stall as an approach to a stall, using the pitch up and rudder to minimize turn radius - sort of pivoting on your tail.  WW1 aviators did something similar called a vertical reverse. 
 

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Reply #25 - Jan 6th, 2010 at 5:55pm

DaveSims   Offline
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olderndirt wrote on Jan 6th, 2010 at 1:52pm:
specter177 wrote on Jan 6th, 2010 at 1:44pm:
olderndirt wrote on Dec 30th, 2009 at 10:05pm:
A 'Box Canyon turn', as it's simetimes called, is essentially a stall turn.  Ease off the power, pitch up and input full rudder.  Catch it about the 180 point and recover going the other way.  If you didn't hit the canyon wall, start working on your story  Smiley.


I was taught to do a canyon turn by just slowing down, putting out about 20 - 30 degrees of flaps (in a 185), and gingerly doing a tight turn with lots of power. Spinning it around seems like it would use too much altitude for it to be safe.
Thinking about it, not so much a stall as an approach to a stall, using the pitch up and rudder to minimize turn radius - sort of pivoting on your tail.  WW1 aviators did something similar called a vertical reverse. 


Sounds a lot like a wingover, which is itself a lot like a hammerhead without stalling the aircraft.  The point is to take the radius of the turn into the vertical dimension, to reduce the radius horizontally.
 
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Reply #26 - Jan 6th, 2010 at 8:57pm

olderndirt   Offline
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DaveSims wrote on Jan 6th, 2010 at 5:55pm:
Sounds a lot like a wingover, which is itself a lot like a hammerhead without stalling the aircraft.  The point is to take the radius of the turn into the vertical dimension, to reduce the radius horizontally. 
A hammerhead for sure except you don't want to descend much.  Wingover - again descending and pulling.  It all sounds good in theory - reminds me of the classic weather avoidance maneuver "let's do a 360 and get the h*ll out of here"  Smiley.
 

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Reply #27 - Jan 6th, 2010 at 10:14pm

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olderndirt wrote on Jan 6th, 2010 at 8:57pm:
DaveSims wrote on Jan 6th, 2010 at 5:55pm:
Sounds a lot like a wingover, which is itself a lot like a hammerhead without stalling the aircraft.  The point is to take the radius of the turn into the vertical dimension, to reduce the radius horizontally. 
A hammerhead for sure except you don't want to descend much.  Wingover - again descending and pulling.  It all sounds good in theory - reminds me of the classic weather avoidance maneuver "let's do a 360 and get the h*ll out of here"  Smiley.


A 360? Sounds like someone failed math. Grin Grin
 

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Reply #28 - Jan 23rd, 2010 at 2:08am

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Spin training is only a requirement if you are seeking a CFI. They cannot be waived if the airplane is not certified. In this case, the training must be performed in a different aircraft, but all CFI students are required to demonstrate proper entry and recovery, the logic behind this being the ability to demonstrate that you have the capability to recover if your student ends up "ass over teakettle" as they say.  Smiley

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