Garmin Perspective Tips & Tricks

Cirrus SR22 Owner Completes First Solo

ByHank Gibson July 31, 2014

Congratulations to Monte James who, on July 31, 2014, completed his first solo flight!  Monte is the owner of N565TV, a 2007 Turbonormalized Cirrus SR22.  N565TV is a G3 model with an Avidyne panel.  Monte was very excited to complete his solo flight.  He reported very good landings during the flight (he even said the last landing, which was probably his best yet, caused him to break into laughter!).  Texas Top Aviation’s Hank Gibson, Monte’s instructor, took pictures and continued the tradition of cutting Monte’s shirt tail to commemorate the flight.

Congratulations to Monte!

Garmin GTN 750 Tips & Tricks

ByHank Gibson June 8, 2018June 19, 2018

The Garmin GTN 750 is an awesome piece of equipment.  Garmin tried to make the user interface with the touch screen as simple as possible (though there still is a bit of a learning curve when moving up from a Garmin 530W).  Garmin also integrated several key features that the 530W did not have that makes flying with a Garmin GTN 750 in IFR all that much better.

The two features of the Garmin GTN 750 I want to focus on today are the “Load Airway” feature and the “Hold at Waypoint” feature.  If a pilot isn’t looking for these specifically, they can actually be a bit hard to find.  The “Load Airway” feature is especially handy when flying IFR long distances with several airways as part of the clearance.  Here’s how to utilize both.

Load Airway

1. On your flight plan page, insert the waypoint that you will be joining the airway, or, if your clearance was radar vectors to join an airway, then insert the waypoint on the airway that begins the leg you will be joining on.
2. Tap the waypoint you just inserted.
3. A menu will pop up.  Tap Load Airway.
4. Select the Airway you want from the next menu that pops up.
5. Then, a list of waypoints will display to exit the airway.  Select the waypoint where you will be exiting the airway.
   1. Note:  Garmin defaults to listing these waypoints alphabetically.  If you unselect the “Sort Alpha” option, it will sort the waypoints by direction and distance from the entry waypoint.  This is a little more practical, easier to work with, and how I recommend doing it.  This way you can either scroll up or down depending on the direction of travel on the airway and find your exit waypoint.
6. Tap Load.
7. The Airway and all the waypoints in between your entry and exit waypoints appear in your flight plan.
8. If you are getting vectors to join the airway, you’ll need to use the Activate Leg function to activate the leg you will be joining the airway on.
   1. On the Flight Plan page, tap the waypoint that ends the leg you want to activate.
   2. On the menu that pops up, tap Activate Leg.

Hold At Waypoint

The Garmin GTN 750 allows pilots to place a holding pattern at any waypoint that is in the Nav Database (or any user created waypoint).  Here’s how to do it.

1. On the Flight Plan page, tap the Waypoint that you want to hold at.
2. On the menu that pops up, tap Hold At Waypoint
3. On the next menu that pops up, input either the inbound or outbound course, right or left turns, leg time or distance, and the EFC time, then tap Load.
4. You will see the hold now as a Waypoint in your flight plan.

Once the hold is entered, the GPS will go into Suspend mode, suspending the Flight Plan Waypoint Sequencing.  Once you are ready to depart the hold, you will have to tap Unsuspend before crossing the holding point on the inbound leg, then the GPS will resume normal waypoint sequencing.

These are 2 of the really cool, gee-wiz features of the Garmin GTN 750.  Following the above steps will make IFR flying much easier for the pilot, as well as much more enjoyable!

Upgrading Avionics

ByHank Gibson October 6, 2014

There are many different ways to upgrade an instrument panel.  Putting in a 696 here, a JPI engine monitoring system there, even an Electronic HSI.  But, if you want to swing for the fences and get a serious upgrade, you have to go for a complete glass instrument panel.  For good measure, you might as well throw in a touch screen GPS while you are at it.

Which panel to go with?  There are two mainstream options (Garmin and Aspen) and a handful of other companies that make glass panel replacements (Avidyne being one, King for a short period of time at the end of the last decade being another with the KFD 840).  Around 2010, there were a lot of companies trying to get into the glass panel retrofit game, but many of the products didn’t gain a whole lot of popularity, leaving Garmin and Aspen at the top of the heap.

What about the touch screen GPS market?  Garmin has this pretty much cornered as well, with Avidyne and King just getting into the game.  The gap between Garmin’s GTN series and Avidyne and King is pretty wide.

The answer is pretty easy when it comes to the GPS (go with Garmin!), but not so easy when it comes to the panel.  The G500 and the Aspen Evolution series are both excellent interfaces with strong reliability, so which one do you go with?  Feature-wise, both have a lot of the same features: traffic, weather, terrain, synthetic vision, to name a few.  The presentation for each feature is a little different between the two interfaces.  It just depends on what you like better.

The nice thing about the Aspen system is you can go glass, but you have options on how much glass you want:  1 screen, 2 screens, or 3 screens?  With the single screen PFD, you have all your instrumentation, traffic, weather, and optional synthetic vision.  You don’t need the synthetic vision for the traffic and weather, as it shows up behind your HSI.  It is an honest to goodness glass panel retrofit.

When you decide to upgrade to 2 screens, this is where Aspen has a leg up.  The second screen is a completely redundant PFD and, if you get the 2 hour emergency backup battery installed, acts as the backup instrumentation to the main PFD.  This means you can take out the old steam gauge standby instruments.  This helps clean the panel up.

I personally don’t see the need for 3 screens, but maybe there is someone out there who needs it.

One selling point that Aspen has over Garmin is the wide variety of autopilots and GPS units that Aspen units are compatible with.  The G500 is only compatible with King autopilots, it’s own GFC 700 autopilot (which would be a retrofit), some Collins autopilots, and the Century 21, 31, 41, and 2000.  This does cover a wide array of autopilots, but it keeps some on the outside.  Aspen, on the other hand, is compatible with most autopilots on the market.

Finally, let’s talk price.  Going with an Aspen EFD 1000 PFD (this is the single screen Aspen) will run you somewhere in the area of $12,000.  The price will vary based on the shop and the airplane.  When you want to add a screen, it’s an additional $6,000.  This is for the base, so if you want to add weather or synthetic vision, it’ll run you a little more.

The Garmin G500 comes in around $20,000, again depending on the shop and the airplane.  The screens are bigger on the G500, which is kind of nice, and you are buying a Garmin product, which has a fabulous track record in the aviation industry.

Decisions, decisions.  There really is no wrong answer here.  Both are excellent products with very good track records.  Both have really nice features and don’t hardly fail.  Really, the choice comes down to what you want.

Need training on your upgraded GPS or glass panel retrofit?  Contact Texas Top Aviation for thorough training on your new avionics today.

Drones: A Brief History

ByAndrew Robinson April 18, 2016April 22, 2016

Drones; these technological wonders have, seemingly, come out of nowhere over the course of a few years. Although they bring with them the promise of convenience and fun, they have also brought problems and uncertainty for the government, general public, and, specifically, the aviation community. But, where did drones come from and are they really something to be worried about? Let’s take a look at Unmanned Aerial Systems (UAS) and hopefully put to bed some of the concerns which seem to be following them around.

It shouldn’t come as a surprise to anyone when I say that drones have recently become overwhelmingly popular. The military, businesses, and hobbyists are increasingly utilizing them for all kinds of purposes, which range from enemy surveillance to package delivery. Drone pilots are in high demand and several aviation universities are even offering majors designed to produce graduates which specialize in UAVs (Unmanned Aerial Vehicles).

Drones are relatively new to the landscape of unmanned flying machines. Although model airplanes have been popular since the dawn of aviation, the first “drones” didn’t start becoming commercially available until a few years ago. As electronic technology advanced, so did model aviation. Models became more and more sophisticated and could be flown remotely as long as they remained within sight of the person flying it.

It wasn’t until about 3 or 4 years ago that the technology became available to develop drones. This is due to the need for very small and light electric motors, batteries, and stabilization systems. Once these started to become popular, it didn’t take long for drones to become bigger, cheaper, and completely automated.

It is important to note that there is a difference between drones and conventional model airplanes and helicopters. Drones are defined most simply as an unmanned vehicle which can be operated without user input from the ground. Conventional model aircraft can take all shapes and sizes, but must be operated within line of sight from the operator; as they have no ability to fly, takeoff, land, or navigate without input via a radio transmitter. So, if you happen to see a model aircraft flying, don’t assume automatically that it is a drone. Most of the time, model airplanes, helicopters and even drones are being flown safely and legally.

Generally, a drone is designed with several arms which come off of a central body. Each of the “arms” typically has a motor with a rotor mounted on it to provide lift while the main body is home to the radio equipment, landing skids and camera gear. If you see a model flying that looks like a conventional airplane or helicopter, odds are it isn’t a drone. Most likely it is being flown recreationally by someone nearby.

Historically, model airplanes and helicopters have been difficult to learn to fly. Before the times of pre-built foam airplanes and ready to fly drones, a modeler had to build their flying machine and find someone to teach them how to fly it. (Otherwise, they would likely only get one short flight). New modelers would be directed toward the local model flying club and would get plugged in with a group of established fliers who could outline the rules for model aircraft as well as get them up in the air safely.

However, because most everything is purchased online in today’s market, drones are bought and flown by enthusiasts who have not been taught the rules, safety protocols, and procedures necessary to safely operate their new kits. In addition, the drones incredible stability and ability to be flown without any skill means that anyone with great enough funds and an equally great lack of common sense can buy a model and program it to fly over any location they choose. Unfortunately, sometimes that includes places which cause problems.

Andrew Robinson is a 135 Charter Pilot and flight instructor who lives with his wife and 2 daughters in Pennsylvania.  He flies Pilatus PC-12s and instructs in Beechcraft Bonanzas.

The Importance of Density Altitude

ByHank Gibson August 14, 2018August 14, 2018

Density Altitude:  Pressure Altitude corrected for non-standard temperature.

That’s the book definition of density altitude.  The problem is, that definition leaves a lot of general aviation pilots scratching their heads.  What really is density altitude?

All airplane engines rely on air and fuel mixing together, then that mixture is ignited to create combustion. Normally aspirated piston engine airplanes get their best performance at sea level, where the air is nice and thick, allowing plenty of air molecules to get sucked in the engine intake.  As a normally-aspirated airplane climbs, the ambient air pressure drops with an increase in altitude (the air gets thinner, less dense), thereby reducing airplane takeoff, climb, and landing performance.  There just isn’t as much air at higher altitudes, to put it simply.

Turbo charged piston engines assist with this air density problem.  A turbo charger boosts the air coming into the engine and fools the engine into thinking it is at sea level pressure all the time.  The higher the altitude, the faster the turbo charger spins, spinning the compressor faster, which compresses more air to continue to give the engine sea level pressure air.  This gets faster cruise speeds the higher you go.

Both normally aspirated & turbo charged engines do experience longer takeoff rolls and reduced climb rates at higher airport elevations & higher altitudes.

How does this all relate to density altitude?

When the outside air temperature rises, the air becomes thinner, less dense.  This means that when an airport elevation is 1,000 feet, but the density altitude is reported as 3,000 feet, the airplane engine thinks it is at 3,000 feet.  It won’t accelerate as fast.  The airplane’s climb rate will also be reduced.  That means that the normal climb pitch attitude a pilot is used to seeing won’t be accurate at higher density altitudes. It will lead to slower indicated airspeeds, slow enough to potentially lead to a stall if a pilot isn’t paying attention.

Where does this get dangerous?  High elevation airports.  Whenever the OAT creeps above 85 or 90 at an airport that is higher elevation (I would classify higher elevation as 2,500 feet or higher), the corresponding density altitude sky rockets.  If a pilot isn’t paying attention to airspeed or angle of attack (if the airplane is equipped with an AOA), a stall can come very quickly on climb out.

What to take home from this?  Monitor your climb speed and angle of attack, especially right after takeoff, when you hear density altitude on the ATIS or AWOS.