Lightspeed Zulu 2 vs. The Bose A20

Fly Away Destination: Lajitas Golf Resort

ByHank Gibson March 10, 2019July 14, 2026

Talk about star treatment.  The Lajitas Golf Resort rolled out the red carpet for the 2019 Texas Top Aviation Lajitas Fly In.  I had been to Lajitas twice before; once in July when it was hot, miserable and bumpy.  The second time was the week before our Fly In.  Both times, everyone from the airport folks to the bus drivers to the front desk and restaurant staff were top notch.  It made for a very pleasurable experience.

If you haven’t been out to Lajitas (or don’t even know where it is) and you’re a pilot (you don’t even have to play golf), you have missed a sure gem.  Lajitas is positioned on the southern tip of the Big Bend area of Texas, right on the Rio Grande river.  Lajitas has great lodging with several different room options from big to small, an excellent restaurant for 3 square a day (and even a bakery for sweets, coffee, and breakfast tacos in the mornings), and a 5 star golf course in Black Jack Crossing.

Why is this all relevant to us aviators?  Lajitas has it’s own private airport, 89TE.  Complete with a 5,500 foot asphalt runway, VFR conditions most of the year, and reasonable fuel prices, Lajitas is the pilot’s gateway to the resort and the entire Big Bend area.  If you wait until the fall, a brand new, 7,000 foot concrete runway should be completed and an IFR approach should be available.  An AWOS is in the works too.

The resort and airport are so far south, radar and radio coverage with Albuquerque Center is pretty poor below about 15,000 feet, and non-existent below 10,000 feet.  This isn’t a big concern as any airplanes in the area should be on 122.9 and the airport manager will make contact with you, give you a weather report, and assign a runway.

Once you are on the ground, there will be a resort bus waiting to whisk you and all your friends to the resort for your getaway.

The 2019 Texas Top Aviation Lajitas Fly In was a big hit.  We had 7 airplanes total:  5 Cirrus SR22s, 1 Piper Matrix, and 1 Citation M2.  There were 15 attendees total, including 13 golfers.  Everyone raved about the resort and the golf course.  The only hiccup in the weekend was the cold front that blasted through on Friday afternoon, kicking up a lot of dust.  Golfing on Saturday was windy too, but Sunday morning was absolutely perfect.

Thanks again to the folks at Lajitas for the star treatment!

Interested in participating in the next Texas Top Aviation Fly In?  Contact Us or Sign Up for Our Newsletter and we will make sure you find out about the next one so you don’t miss out!

Cirrus Alternator Failure

ByHank Gibson April 27, 2018May 1, 2018

A Cirrus is an electric airplane.  There are no vacuum pumps and therefore no vacuum driven instruments. The Klapmeier brothers did this on purpose, trying to make it a modern airplane.  No vacuum systems means no vacuum pump failures, hence there is a lower likelihood of instrument failures in IMC.

What Cirrus did instead was put a lot of electricity producing and storing devices in the airplane.  All SR20 and SR22s are equipped with 2 engine driven alternators and 2 backup batteries.  Alternator 1 is a 28 volt alternator (the amperage varies based on whether or not you have an air conditioner) while Alternator 2 is a 28.5 volt alternator.  There are 2 24 volt backup batteries, as well.  Battery 1 is also used for starting.

In traditional airplanes that have 1 alternator, an alternator failure can affect a lot of things.  Depending on how many electronics are in the airplane, the battery can get depleted quite quickly.

The Cirrus electrical system is quite ingenious.  It’s a little bit different based on whether you have an Avidyne Cirrus or a Garmin Perspective Cirrus.  I will discuss that further below.

The main goal of this article is to talk through what happens in the event of a #1 Cirrus Alternator Failure (an Alternator 2 failure actually isn’t a big deal at all, though Alt 2 is required for IFR flight), the procedure for trying to fix it, and a technique I have developed that makes the pilot’s job easier.  First, let’s go through the #1 Cirrus Alternator Failure procedure.

Alternator 1 Failure

In either avionics configuration, the Cirrus Alternator Failure procedure is the same.

• Check and reset the circuit breaker for Alternator 1 (Reset only once)
• Cycle the Alternator 1 master switch
• If Alternator 1 doesn’t come back online, leave the Alternator 1 master switch off and shed load on the battery

Avidyne Entegra

The Avidyne Entegra has 2 busses, the Main Bus and the Essential Bus.  Alternator 2 isn’t set to come on until the engine RPM reaches 1700.  While on the ground, Alternator 1 runs both the Main and Essential Buses.  In the air, Alternator 1 runs the Main Bus and Alternator 2 runs the Essential Bus.  Since Alt 2 is 28.5 volts, the higher voltage won’t allow the power from Alt 1 to cross over and run the Essential Bus.  There are also 2 one-way directional diodes that prevent the voltage from Alt 2 to cross over and run the Main Bus.

Having said all that, when Alternator 1 fails, Battery 1 is now running the items on the Main Bus.  There are a significant number of items on the Main Bus which causes the 24 volt battery to quickly lose it’s charge. This precipitates the need for shedding load.  Items like GPS 2, the air conditioner and aircraft lights can all be turned off.

In the above scenario, Alternator 2 is running the Essential Bus still that has all the Essential items on it.  Those include:

• The PFD
• Flight Instruments and associated Avidyne computers
• Engine Instruments and associated Avidyne computers
• GPS 1
• Com 1
• Nav 1
• Autopilot
• Stall Warning
• Charging Battery 2

Note 2 important items that are not on the Essential Bus:  the flaps and the landing light (which is very handy at night).  Those two are only on the Main Bus, which Battery 1 is now powering.

Let’s further enhance our scenario.  You are flying over Nevada (quite remote and not a lot of airports) at night, 30 minutes from the nearest airport when your Alt 1 fails.  When you get to the airport you are planning on landing at, you want to have your flaps and your landing light, but we don’t know how long Battery 1 will last.

The solution (this is where my technique comes in):  Turn off the Battery 1 master switch.  This is an easy solution to ensuring you have battery power to use your flaps and landing light.  Instead of going through and shedding load, simply turn off the source.  You’ll still have all the above items on the Essential Bus, which is all you need to keep safely flying.  Then, when you get to your landing airport, turn Battery 1 back on to utilize your flaps and landing light.

Garmin Perspective

Cirrus wired the Garmin Perspective plane a little bit differently.  There are now 2 Main Buses along with the Essential Bus.  Alternator 1 runs Main Bus 1, while Alternator 2 runs Main Bus 2 and the Essential Bus. Both Alternators are running all the time.  The Alternator 1 Failure procedure remains the same.

The cool thing that comes along with the second Main Bus in the Perspective is the amount of items you still have available to you in the event of an Alternator 1 failure.  The only items you lose will be:

• Yaw Damper
• Landing Light
• Air Conditioner and associated components
• EVS Camera
• 12 Volt power supply in armrest

Everything else is powered off of Alternator 2.  That’s not much.  The only item you really want on the above list is the landing light if you are going to be landing at night.

Follow the Alternator 1 Failure procedure, then do my technique again.  Turn off Battery 1 to save the battery power in order to use the landing light when needed.

Cirrus did a great job creating an all electric airplane with plenty of backups in case something fails.  I focused mainly on the Alternator 1 failure here.  If Alternator 2 fails, the system is wired for Alternator 1 to run everything while still charging Battery 1 and 2.  No big deal.

In my experience, turning off Battery 1 to conserve battery power is just a simpler solution when shedding load in the event of a Cirrus Alternator Failure.

Pilatus Jet Nears Certification

ByHank Gibson October 11, 2017

The Pilatus Jet, the PC-24 Super Versatile Jet, is nearing certification.  Pilatus expects the Pilatus Jet to receive European and US certification by December.  The first delivery may even take place before the end of the year.

In developing the PC-24 Pilatus Jet, Pilatus, based in Switzerland, has taken the same approach as they did with the PC-12, their insanely successful single engine turboprop.  Versatility is the key, with their mindset being to make the PC-24 Pilatus Jet the first flying Suburban jet.  Pilatus emphasized STOL  and unimproved strip operation in their design.

The huge cargo door so familiar on the PC-12 has been crafted into the PC-24 Pilatus Jet giving access to a massive cargo area.  According to Pilatus’ website, the jet has a takeoff distance of only 2,690 feet, which is unheard of for a a business jet.  There is seating for 11 + a pilot (yep, it’s a single pilot airplane!), so the whole family can come along.  With a max cruise of 425 knots and a range of almost 2,000 miles, it’s a get somewhere airplane.

The price tag for a new PC-24 Pilatus Jet will be $8.9 million, which is just under what a new Phenom 300 costs.  There is a 90 order wait list, so if you get on it now, you can get one faster than a Cirrus Vision Jet!

Garmin 530/430 Missed Approaches

ByHank Gibson May 25, 2016May 29, 2016

Flying a missed approach can be stressful enough.  When you haven’t done one in a while and your GPS isn’t showing you how to get to the missed approach point and you can’t remember which button to press, that adds a lot more stress.  Recipe for disaster?  Quite possibly!

No need to fear, we are here to help.  The procedure for getting a Garmin 530 or 430 to give you missed approach guidance is actually simple and straightforward, if you know what to do!

Note: Because of the variety of different autopilot configurations in different airplanes, this article will focus solely on the GPS.

What the GPS is Thinking

The way Garmin designed the Garmin 530 and Garmin 430 is to be as helpful to pilots as possible.  Their thinking was, 95% of the time, a pilot will make a landing on an instrument approach.  This is pretty accurate as most of the time, this is what happens.  Most general aviation pilots don’t fly approaches to minimums all that often, thus negating the need for a missed approach.

Garmin designed their software with this in mind.  When an airplane crosses the missed approach point, the GPS will go into what’s called suspend mode (a SUSP annunciation appears above the OBS key).  It will keep the missed approach point as the active waypoint because it assumes the pilot is going to land.

This can be confusing to pilots.  This is what happens when software engineers and pilots come together. Engineers often believe they are smarter than pilots! (See the Airbus fly by wire roll out)

The Procedure

In the case of a missed approach, the button pushing on the GPS is actually relatively simple.  There is no SUSP key to take the GPS out of SUSP mode (thanks Garmin!).  Instead, you press the OBS key.  This will take the GPS out of SUSP mode, making the first waypoint on the missed approach procedure the active waypoint.  Your GPS will now give you guidance on the missed approach procedure.

If you are going missed off an ILS, LOC, or VOR approach, then there is one more key you’ll have to press. Your CDI needle (whether it is digital or analog, an HSI or just a CDI gauge) will be reading off the NAV radio and your CDI indication on the GPS will be VLOC.  After you press the OBS key, press the CDI key on the GPS so you will start getting course guidance from the GPS again.

That’s it.  Button pressing on the different autopilots will vary, but if you are familiar with yours, you’ll be able to tell it to follow the GPS and climb to the proper altitude.