The AOPA Air Safety Institute is making it’s annual loop through Texas this January. The topic for this Safety Seminar is “More Difficult Decisions: Choices & Consequences.”
The seminar is geared our the decision making process that we as pilots face on each flight. Some decisions are easy (what altitude should I pick?) while some have much greater consequences and should be taken very seriously.
This event will be interactive for the participants as several scenarios will be presented. The goal is to help pilots learn to think through each decision, weighing the consequences along the weigh to arrive at the safest outcome of the flight.
The first area seminar will be held on Tuesday, January 21st at the Stinson Field Airport (KSSF, 8535 Mission Road, San Antonio, TX 78214). The second area seminar will be held on Wednesday, January 22nd at the TXDOT office in Austin (200 E. Riverside Dr., Austin, TX 78704). WINGs credit is available for all attendees.
When I was doing my instrument and multi-engine training, we did a lot of circle to land approaches. As a student, I could never figure out why these types of approaches would ever be practical when you could an approach straight in to another runway. But, as a good student, I never asked my instructors the purpose of them, I just did them to the best of my ability.
Now, having been flying in the IFR system for almost a decade, I’m finally beginning to fully understand the practical purpose of a circle to land approach. I have actually elected to do an approach where I had to circle to land on several occasions in actual IMC conditions.
One important note to remember on circle to land approaches is that the minimum descent altitude (MDA) is always higher than on a straight in approach. The reason for this is that you are basically joining the pattern for a different runway and you have to be able to visually keep yourself clear of towers and other obstacles. So, you need a higher visibility and a higher ceiling than if you were just lining up to come straight in.
Here are a couple of practical circumstances where it would make sense to do a circle to land approach.
Airports with only 1 straight in approach
This one is easy. There are a number of airports scattered around the US that have only 1 straight in instrument approach published for it. Around my part of Texas, the first one that pops into my mind is the RNAV 31 at T85 in Yoakum, TX. Most of the year, the prevailing wind is out of the south, so 13 is the favored runway at T85. During the winter is when most of the IMC weather happens in South Texas, so that is why the approach is for 31.
Of course, especially this year during the summer, there are some IMC days where an approach to T85 would be necessary. When there is a strong wind out of the south, landing on 31 is impractical, so a pilot would fly the approach to 31, then circle to land on 13.
Approaching from the opposite direction
Take a look at the RNAV 19 at KBMQ, Burnet, TX. The two initial approach fixes (IAF) are IXANY and JIBAJ. If a flight is approaching BMQ from the west or north, this is an easy approach to join. If a flight is coming from Austin (directly the the east and a little south) or San Antonio (almost directly south), it would be a bit of extra flying to get configured properly for the approach. Especially coming from Austin, because the degree of turn to join at JIBAJ wouldn’t make the approach practical.
Well, how about vectors? Unfortunately, Houston Center doesn’t have this approach depicted so vectors aren’t a possibility. Center can give you vectors north to make the angle a little easier to join at JIBAJ, but they can’t vector you onto the approach.
Direct DLORA to join is another option, but again, if you are approaching from the southeast, the angle is wrong.
Insert the RNAV 01 approach with a circle to land. AMUSE is right on V163, so it’s really easy to join the approach there coming from the south. Coming from Austin, joining the approach at SUBIE works out great. Fly down to the MDA, join the left downwind for 19, and everyone is happy.
VOR Circle to Land Approaches
Every instrument pilot has had an instructor “force” them to do a VOR A or VOR B approach and no one enjoys them. I personally think they are good practice. With the number of RNAV systems and RNAV approaches out there, though, VOR approaches are becoming a bit archaic.
They do have a place in this discussion, though. A VOR approach is given an A or B designation when the angle of the final approach course is greater than 30 degrees to the runway (VOR A KLZZ), or the final approach course is lined up with the runway, but the MDA is too high to practically descend and land (VOR A KGRK or the VOR/DME C KASE).
So, there are practical uses for a Circle to Land approach. The next time you do some IMC work with an instructor, ask him/her if you can include one.
When I was doing my instrument and multi-engine training, we did a lot of circle to land approaches. As a student, I could never figure out why these types of approaches would ever be practical when you could an approach straight in to another runway. But, as a good student, I never asked my instructors…
Texas Top Aviation wants to express our heartfelt concerns and prayers for those affected by Hurricane Harvey along the Texas Gulf Coast and in Houston. We have several customers in Houston and hope and pray that they are all safe.
The Houston Hobby Airport after Hurricane Harvey’s Torrential downpour
If you would like to donate to the relief effort, there are several organizations that are accepting support. A few are below.
Texas Top Aviation wants to express our heartfelt concerns and prayers for those affected by Hurricane Harvey along the Texas Gulf Coast and in Houston. We have several customers in Houston and hope and pray that they are all safe. If you would like to donate to the relief effort, there are several organizations that…
Looking for something different to do this Spring Break week?
Consider checking out the First Annual MODAERO NextGen Aviation Festival in Conroe, TX. It’s a fly in event, complete with camping opportunities, at the Lone Star Executive Airport, KCXO. The festival itself is being held right next door to the airport at the Lone Star Convention Center.
What’s the draw, do you ask? Not only are there going to be representatives from all the major aircraft manufacturer’s (along with tons of airplanes), there will be a multitude of speakers and live music. There are even drone races! The live music sets the event apart from the well known national fly in events like Osh Kosh and Sun N Fun. It’s a different type of Festival, geared toward the younger generation of pilots.
For more information or to register, check out MODAERO’s website. The festival runs from Wednesday through Saturday, March 16-19.
Looking for something different to do this Spring Break week? Consider checking out the First Annual MODAERO NextGen Aviation Festival in Conroe, TX. It’s a fly in event, complete with camping opportunities, at the Lone Star Executive Airport, KCXO. The festival itself is being held right next door to the airport at the Lone Star…
Ever wanted to be a Cirrus owner, but the economics of being a single owner just don’t make sense for you? If you’re in the Houston area, you now have a chance to join a Cirrus SR22 partnership at the West Houston Airport, KIWS.
The group, CirrusShare, is a 4 member group, but one of the members is looking to sell his share. The airplane is a 2007 G3 SR22. It is in excellent condition, with dual WAAS 430s and air conditioning.
Ever wanted to be a Cirrus owner, but the economics of being a single owner just don’t make sense for you? If you’re in the Houston area, you now have a chance to join a Cirrus SR22 partnership at the West Houston Airport, KIWS. The group, CirrusShare, is a 4 member group, but one of the members…
You are hand-flying an in-the-weather descent, power back, heading for the FAF. You start a 30 degree banked turn at your lead point to cross the FAF, when your passenger behind you gasps. Looking over your shoulder, you see he has spilled his drink into his lap…too bad for him! However, when you turn your head back to your panel, your inner ear tumbles and you see 45 degrees of bank, 15 degrees nose low, airspeed increasing.
Congratulations! You have managed to get distracted and sucked into an unusual attitude recovery. By the book, you should roll wings level, pull to the horizon, and adjust power as necessary to keep the airspeed within limits. In this scenario, if you had not experienced vertigo, you might have been able to roll to less than 30 degrees of bank, recover your turn, pull the nose up to less than the original descent attitude, pulled a bit of power to slow back to your desired penetration speed and then resumed your desired ground track. However, this would only be appropriate if you had full situational awareness as to the deviations caused by the look over your shoulder, plus full confidence that the moderate corrective actions would put you back on your desired flight path.
As a military aviator, I learned unusual attitude recoveries based upon hard maneuvering at extreme pitch and bank angles. In the hard-maneuvering environment, an unusual attitude could be 90 degrees straight up, airspeed decreasing below 120 kts…or 80 degrees nose low, 135 degrees of bank, airspeed increasing through 500 kts… etc. In these cases, understanding angle of attack, or AOA, is critical to maintaining controlled flight and returning to a normal attitude.
In an extreme nose-high attitude, a military aviator is trained to roll the aircraft to 90 degrees of bank, ease off the back-stick pressure to reduce AOA, add power as required, and allow the nose to slice back towards level, rolling to wings level as the nose approaches the horizon. If nose low, the recovery procedure is to roll rapidly, within asymmetric g limits, until wings level, then to pull at optimum g loading to recover to level flight. For the nose-low recovery, power was normally reduced until airspeed could be assessed and brought under control. However, when doing the nose-low pullout at 7-9 gs, pulling the power for too long would leave you much to slow to resume combat.
The AOA gauge on a fighter’s glare shield is a primary reference during hard maneuvering and for landing. The AOA for optimum maneuvering is 13 degrees, displayed as the green circle or “green donut” on the gauge. The red chevron on top represents a slow condition of 15 degrees or more and the yellow lower chevron represents 11 degrees or less.
For normal landing in the F-16C, the pilot slows to 220 kts and configures abeam the touchdown point while mentally computing the final approach airspeed of 136 kts plus 4 additional knots for each 1000 lbs of fuel. When rolling off the perch and flying the final turn, the pilot would usually only glance once at the airspeed once to ensure final turn airspeed of 180 kts while using the AOA sight gauge as the primary indicator of a best performance turn. As long as the AOA was green donut (13 degrees) or less, you would not stall. If on speed and 13 degrees wasn’t going to get you around the turn to line up with the runway, you knew you were going to overshoot. You never wanted to see the red chevron of 15 degrees or more as that meant you were too slow, pulling too hard, and in danger of building an un-recoverable sink rate!
Few GA aircraft are currently equipped with AOA indicators, though there are several after market devices available for retrofit. However, knowing the impact of AOA and how to manage it is vital to safe aviating, even without an AOA gauge. The bottom line is, as long as you don’t ask the wing to produce more angle of attack than it can handle, you won’t stall.
Practicing final turn stalls, to know what the wing feels like as you get too slow or pull too much on the controls, increasing AOA past the critical point, will keep you safe when you encounter that unexpected overshooting wind or you find yourself inadvertently on too tight of a downwind leg. Better to overshoot or take it around to try again, than to pull too hard and exceed critical AOA.
Mike Hostage is a retired USAF pilot with 37 years of experience, flying a wide variety of aircraft. An instructor pilot for more than half of his 4800 flight hours, Mike is currently qualified in a Cirrus SR-22T and regularly flies his two homebuilt sailplanes.
You are hand-flying an in-the-weather descent, power back, heading for the FAF. You start a 30 degree banked turn at your lead point to cross the FAF, when your passenger behind you gasps. Looking over your shoulder, you see he has spilled his drink into his lap…too bad for him! However, when you turn your…
The South Central Cirrus Owner’s and Pilot’s Association (COPA) Region is hosting it’s second Fly In dinner at the Austin Executive Airport (KEDC) on Friday, October 8th, dubbed the Spring Cirrus Austin, TX Get Together. The event is from 5:30-9pm.
Like the first CATGT in October, there will be dinner ($25 per person), drinks, and several presentations. Jack Long and Josh Marvil will speak about their trip around the world in a PC-12. Ed McCombs and Eric Opiela will give a safety presentation about automation and task saturation.
Plus, best of all, Cirrus is bringing a real live flying SF50 Vision Jet, plus a brand new SR22 G6 with the Garmin Perspective NXi panel.
Fly in or drive to EDC. The dinner will be in the Henrickson Jet Center’s main hangar. You will need to RSVP so event organizers can get a proper head count. The link to RSVP is here.
The South Central Cirrus Owner’s and Pilot’s Association (COPA) Region is hosting it’s second Fly In dinner at the Austin Executive Airport (KEDC) on Friday, October 8th, dubbed the Spring Cirrus Austin, TX Get Together. The event is from 5:30-9pm. Like the first CATGT in October, there will be dinner ($25 per person), drinks, and…
