I make spin training an option for private pilot and commercial candidates, but the regulations in the US require flight instructor candidates to receive ground and flight training in stall/spin awareness, spin entry and spin recovery. Instructor candidates must demonstrate instructional proficiency in these areas, too.
The other day I did spin training with a flight instructor candidate (one of the areas of flight instruction that I can do while I wait for my medical status to be resolved). The aircraft we chose was a trusty old Cessna 152. In theory we could have used a Cessna 172, assuming it was loaded in the utility category, but most 172 owners don't want their aircraft used for spin training. And for good reason: Spins wreak havoc on gyro instruments unless the instruments are designed to be caged. Many 172s are flown in instrument conditions, something you don't want to do if some of the flight instruments are questionable from being subjected to intentional spins.
My usual approach to teaching spin entry and recovery is to demonstrate two entries, first to the right and then to the left. Most Cessna aircraft designs enter a spin reluctantly, but predictably. Due to the inherent left-turning tendency at high pitch attitudes, the spin to the right is more docile so I start with that. After demonstrating two spin entries, I coach the pilot I'm instructing in doing the same. After a total of four spin entries and recoveries, assuming the pilot feels okay, we do some more. After the initial rush wears off, most pilots want to do at least a few more spins.
Some pilots want to see fully developed spins, where the rotation becomes faster and more stabilized. A 152 Aerobat Texas Taildragger conversion I once flew liked to really wind up in developed spins, probably due to the replacement of the nose gear with a tail wheel and the repositioning of the main gear. For instructor candidates, I like to do some scenario-based teaching where I pretend to be a student who inadvertently enters a spin during a stall demonstration and the instructor candidate takes control of the aircraft - the "I got it" maneuver. Another scenario is a cross-controlled stall during the infamous base-to-final turn.
A while ago I wrote about the dwindling number of complex single-engine airplanes for training (those with retractable landing gear, controllable pitch prop, and flaps). There's only one complex single-engine trainer airplane currently in production - the venerable Piper Arrow. There's a similar, but somewhat less serious problem in the decreasing number of training aircraft approved for intentional spins.
For spin training, there are numerous specialty aerobatic aircraft and some flight schools even specialize in "upset" and spin recovery training. Remember that the requirement for flight instructor candidates is to demonstrate instructional proficiency and I think that is best done in a training aircraft: An Extra 300 is a cool plane, but it's not representative of the types of aircraft used to train GA pilots.
This got me to thinking again about the soon-to-be-certificated Cessna SkyCatcher, which I wrote about a while back. As my instructor candidate and I squeezed ourselves into the vintage Cessna 152 we were going to use for his spin training, complete with older radios and a serviceable, but funky intercom, I found myself revisiting Cessna's decision to not design the SkyCatcher for intentional spins. Granted, the primary intent of this design seems to be sport aircraft market, but it is also the de facto replacement for the no-longer-manufactured C150 and C152. The fact that this plane cannot be spun intentionally is a huge oversight.
Most readers probably have read about the crash of a protoytpe SkyCatcher during spin testing. Reports say that the aircraft entered a flap spin and the test pilot bailed out after an unsuccessful attempt to recover from the spin and then an unsuccessful deployment of the aircraft's ballistic parachute. Just looking at the aircraft, it is not hard imagine it having an slightly aft center of gravity. The ballistic parachute, a laudable design goal, would also put additional weight aft of the center of gravity. If these observations are correct, perhaps a redistribution of weight in the aircraft would solve the spin recovery problem? Of course, additional weight might put the aircraft over the 1320 pound maximum takeoff weight limit for sport aircraft.
The GA pilot population is dwindling. We need instructors to train new pilots. Instructor candidates need to undergo spin training. Without an influx of new instructors, there will be fewer instructors available to train new pilots. Without an influx of new pilots and affordable (and versatile) aircraft for those pilots to use, the market for new aircraft can only shrink.
What were they thinking?
Showing posts with label aerobatics. Show all posts
Showing posts with label aerobatics. Show all posts
Monday, October 27, 2008
Sunday, April 13, 2008
Covering Your Tracks
Whenever someone asks me why I'm not working for an airline, charter, or fractional operator, I often wonder the same thing. Then I think about the advantages of being a professional flight instructor and contract commercial pilot. I'm fortunate that my work offers plenty of variety and I get a lot of say in when and what I choose to do. I most often fly out of a busy Class C airport, but frequently go to small, non-towered airports. Many of these airports are off the beaten path. Some are exotic (like Ocean Ridge) while some (like Los Banos) seem more boring and deserted. Variety also comes in the form of the different aircraft I get to fly.

I then used the small FMS knob to specify a point 7 miles before VPMOR. You press the ENT key to accept commit any changes you make.

Lastly, I assigned an altitude (you can only do this in the MFD's flight plan interface) of 3500 feet at VPMOR-7 and 2500 feet at VPMOR, again using the ENT key to confirm any field inputs.

A few miles later, we heard the aural alert "Vertical Track" and if you have a G1000 with the Garmin AFC autopilot, you can dial in the next altitude using the ALT knobs and use the VNAV button to instruct the autopilot to intercept and track the advisory descent. Our plane had the KAP 140 autopilot, but we were still able to track the advisory descent path.

Another handy feature is Parallel Track, which I'll cover in my next post. For now, I've got to rest my left arm which has some tracks of its own from several inoculations I received yesterday in preparation for an upcoming trip. More details on that trip as they become available.
It's not uncommon for me to fly five to six different aircraft types in a week and this past week offered exceptional variety. One day I flew an aerial survey job in turbo 206 - lumbering along at 7000 feet over a dozen survey lines, 8 to 10 miles long, while maintaining a mind-numbing lateral course of +/- 10 meters and altitude within +/- 20 feet. A day later, I got a chance to test my G tolerance with a former CFI student of mine in an Extra 300. The Extra, a lightweight two-place aerobatic aircraft with a 300 horsepower engine, is what you might call a solution in search of a problem. It's pretty much the antithesis of a turbo 206 loaded with expensive digital camera equipment. So one day I'm flying tracks through the sky as absolutely straight and level as possible, then the next day I'm making different sorts of tracks - doing aileron rolls, loops and hammerhead turns.
This was my first time in an Extra and while I'm not drawn to aerobatic flying, I still appreciate the precision, skill, and physical conditioning it requires. The Extra 300 gives one the feeling that the plane could handle much more stress than most pilots can handle. This lead to a sense of confidence and trust in the plane along with, ideally, a healthy respect for your own physical limitations. I got too slow at the top of the second loop I attempted and I realized we were going to "fall out," I was very comfortable in letting the nose drop, gaining some airspeed, and just trying again. In normal and utility category aircraft I'm conservative, but in the Extra invites you to wring things out. A wise pilot remembers which aircraft he or she is flying and adapts accordingly - doing this stuff in a normal or utility category aircraft is just stupid.
I also spend a lot of time making IFR tracks with the G1000, which contains so many features that one could make a career out of knowing them all. Earlier in the week I had the opportunity to get creative and try some features that I hadn't used before during an VFR flight. I try my best to know all about the equipment I use, but many of the G1000 features fall into the category of "nice to know." You may never need to use them, but they can be handy in the right setting.
The Along Track Offset feature is pretty simple to grasp - it allows you to create an unnamed waypoint that is a certain number of miles before or after a waypoint in your flight plan. On the flight in question, we'd created a simple flight plan for a return flight from Petaluma Municipal Airport to Oakland. Since NORCAL usually instructs pilots inbound to Oakland from the Northwest to "cross the Mormon Temple at or above 2500, make right traffic runway 27 right," I'd entered the GPS waypoint for the temple - VPMOR.
Cruising at 5500 feet, we'd penetrate class B airspace if we didn't manage our descent, so I created an Along Track Offset that was several miles before the temple. To do this, I went into the Multi-Function Display's flight plan interface, pushed the small FMS knob to enter cursor mode, and scrolled with the big knob until VPMOR was highlighted, then I pressed the ATK OFST softkey.
This was my first time in an Extra and while I'm not drawn to aerobatic flying, I still appreciate the precision, skill, and physical conditioning it requires. The Extra 300 gives one the feeling that the plane could handle much more stress than most pilots can handle. This lead to a sense of confidence and trust in the plane along with, ideally, a healthy respect for your own physical limitations. I got too slow at the top of the second loop I attempted and I realized we were going to "fall out," I was very comfortable in letting the nose drop, gaining some airspeed, and just trying again. In normal and utility category aircraft I'm conservative, but in the Extra invites you to wring things out. A wise pilot remembers which aircraft he or she is flying and adapts accordingly - doing this stuff in a normal or utility category aircraft is just stupid.
I also spend a lot of time making IFR tracks with the G1000, which contains so many features that one could make a career out of knowing them all. Earlier in the week I had the opportunity to get creative and try some features that I hadn't used before during an VFR flight. I try my best to know all about the equipment I use, but many of the G1000 features fall into the category of "nice to know." You may never need to use them, but they can be handy in the right setting.
The Along Track Offset feature is pretty simple to grasp - it allows you to create an unnamed waypoint that is a certain number of miles before or after a waypoint in your flight plan. On the flight in question, we'd created a simple flight plan for a return flight from Petaluma Municipal Airport to Oakland. Since NORCAL usually instructs pilots inbound to Oakland from the Northwest to "cross the Mormon Temple at or above 2500, make right traffic runway 27 right," I'd entered the GPS waypoint for the temple - VPMOR.
Cruising at 5500 feet, we'd penetrate class B airspace if we didn't manage our descent, so I created an Along Track Offset that was several miles before the temple. To do this, I went into the Multi-Function Display's flight plan interface, pushed the small FMS knob to enter cursor mode, and scrolled with the big knob until VPMOR was highlighted, then I pressed the ATK OFST softkey.

I then used the small FMS knob to specify a point 7 miles before VPMOR. You press the ENT key to accept commit any changes you make.

Lastly, I assigned an altitude (you can only do this in the MFD's flight plan interface) of 3500 feet at VPMOR-7 and 2500 feet at VPMOR, again using the ENT key to confirm any field inputs.

A few miles later, we heard the aural alert "Vertical Track" and if you have a G1000 with the Garmin AFC autopilot, you can dial in the next altitude using the ALT knobs and use the VNAV button to instruct the autopilot to intercept and track the advisory descent. Our plane had the KAP 140 autopilot, but we were still able to track the advisory descent path.

Another handy feature is Parallel Track, which I'll cover in my next post. For now, I've got to rest my left arm which has some tracks of its own from several inoculations I received yesterday in preparation for an upcoming trip. More details on that trip as they become available.
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