Avidyne’s plug and play replacement for the Garmin 430, the Avidyne IFD 440, finally received certification from the FAA last week. The touch screen GPS unit is being marketed as a simple swap out for the Garmin 430. This release follows up Avidyne’s release last year of the IFD 540, also a plug and play replacement, but for the Garmin 530.
The features and touch screen of the GPS units sound quite nifty, but it will be hard for Avidyne to compete with the GTN 750 and 650 from Garmin. The unit prices for the IFD 540 and 440 will be less (and installation is simpler), but we will see how the company does.
The STC allows for installation in 1,000 makes and models of aircraft, according to the company, so there are a lot of possibilities for installs.
In conjunction, Avidyne also released a new version of it’s software for both GPS units. According to Avidyne, this will unlock multiple features that enhances the capabilities of both units.
To read more on the IFD 440 and it’s bigger brother, the IFD 540, check out Avidyne’s website.
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.
From the time I started flying, I have always had the dream to learn how to fly a seaplane. As I learned in November, it’s actually learning to land a seaplane, and the veterans call them floatplanes.
ProMark Aviation at the Burnet Airport (KBMQ) offers a weekend float plane course that is high on fun and low on stress. The school has a Piper PA12 Super Cruiser on amphibious floats (amphibs as I was corrected at one point. I mean, if you’re going to fly a seaplane, er, floatplane, you have to know the lingo) that will land and takeoff on water, but does little else with ease and grace. At 150 HP with those big floats and all the associated rigging hanging underneath the airplane, you are lucky to get to 500 feet before you get to your destination.
We weren’t working on setting any speed records. I was learning the lay of the water. I learned about the step, the keel, pumping the floats, how to read the water, currents, ducks (yes, ducks and birds are important to know about when you are flying low on the water), buoys, docking, and ditching. Step taxiing was fun as you are basically at 3/4 throttle screaming across the top of the water just below flying speed. It’s the best way to taxi a seaplane (truly, it is. You get more air in your engine, you can see better, and you are moving. Just don’t try and turn sharp).
Floatplanes also don’t have any shock absorbers, so the higher the wave, the more you get knocked around, so wind velocity and, in turn, wave height is very important.
A very important nuance of an amphibious floatplane compared to a straight floatplane (one that doesn’t have wheels that come out of the floats), is at one point, you want to make sure your gear is down for landing (runway landing) and at another, you want to make absolutely sure your gear is up for landing (water landing). If you land wheels down in the water, you will capsize, 100% of the time. Thankfully from my good instruction, I did not capsize.
Ken Wittekiend, my instructor, and I spent the majority of the weekend landing and taking off on Lake Buchanan (I was informed by locals it is pronounced “Buk-cannon”, not “Bue-cannon”), which is more open and therefore has more waves. We did one landing on Inks Lake so my kids could see me land, which they thought was the best thing since cheese sticks.
There is a check ride at the end of the training, but, as Ken reassured me, it’s the most fun check ride you’ll ever have. I still hate check rides, but that one I think I hated least of all.
I hope someday I can put my floatplane skills to practice, but for now, I can vouch that I now speak seaplane!
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.
The Garmin G500
The Aspen EFD 2500
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.
A brand-new event for Lancair owners, the 2018 Great American Lancair Rally will be a multi-stage “grand tour” of the Western US. Starting and ending in Central Texas, the Rally will take place September 24th through October 5th 2018.
The Rally will begin in Uvalde, TX (KUVA) on September 24th at the Lancair headquarters. There will be 6 legs, with stops at:
Sedona, Arizona (KSEZ)
Paso Robles, California (KPRB)
Redmond, Oregon (KRDM)
Spanish Fork, Utah (KSPK)
Taos, New Mexico (KSKX)
San Marcos, TX (KHYI)
At each stop, there will be food, drinks, and fun for everyone.
Lancair plans on making instructors available to pilots who would like any kind of training along the way. Hank Gibson from Texas Top Aviation will be one of the instructors available.
Lancair plan to make the Great American Lancair Rally an annual event, with the 2019 Rally spanning the eastern half of the country.
The Great American Lancair Rally is open to all Lancair owners, potential owners and interested aviators. Fly a different airplane? All makes and models are welcome!
For more information & to register, check out the 2018 Great American Lancair Rally’s website.
A few years ago I took off out of Chicago’s Dupage airport (KDPA) in a Bonanza headed for Deck Airport (9D4), a small uncontrolled airport about 60nm to the west of Philadelphia. It was late November and, unfortunately, due to some unexpected ice, I found myself flying a significant portion of the flight at 4-5,000 feet instead of the 11,000’ at which I had originally planned. This was an issue because I was burning significantly more fuel at 4,000’ than I would have at 11,000’. I did my fuel planning math and came to the conclusion that I would still make it to 9D4 with the required minimums. On I flew, watching the number on the totalizer decrease.
I arrived at 9D4 after dark. Although I didn’t think I would need one, I ended up having to fly an approach to get down below the cloud deck. My troubles weren’t over. After breaking out of the clouds, I was terrified to realize that the runway lights weren’t working.
Now, I had a problem. I was in a relatively unfamiliar area in marginal VFR at night and I was quickly running out of options as far as my fuel was concerned. Fortunately for me, 9D4 is located 14nm north of Lancaster Airport (KLNS), which is a towered airport with very nice approaches and facilities. Also working in my favor was the fact that Lancaster was reporting VFR. I headed as quickly as I could for Lancaster and landed uneventfully.
When I landed I had the required fuel minimums on the airplane, but I managed to scare myself pretty thoroughly. I realized that while I had been forced to deal with some unexpected complications: icing forcing me down several hours before my planned descent and inoperative runway lights that were not listed in the airport NOTAMs. I was very blessed that Lancaster was so close by and that I was able to land without having make an approach. Had LNS not been VFR, I could have easily burned through another 15 minutes of fuel maneuvering for and executing an approach. If, for some reason I’d had to go missed or perform a hold, I would have gone through my remaining fuel pretty quickly. To me, this is a classic example of “just because it’s legal, doesn’t mean it’s safe.” I realized I needed to change how I did my fuel planning.
Since then, I have enforced a personal minimum: 18 gallons must be on the Bonanza at the time I reach my destination. If things change un-expectedly enroute and I realize I won’t make it to my airport with at least 18 gallons, I stop. I had always tried to have an hour of fuel on board as a reserve, but having a hard number is an easy way for me to make decisions.
Having a fuel totalizer installed in an airplane is a really nice way to upgrade the panel and give the pilot a clearer idea of how much gas is being burned/ how much is remaining. The totalizer installed in our Bonanza is a JPI Fuel Flow 450. It has a lot of nice features which make fuel management chores much easier. If a totalizer is something that you are considering installing in your aircraft, or if you have one already, here are a few things that I’ve learned from my experience flying with them.
The JPI 450 totalizer installed in the Bonanza
(photo credit: www.jpinstruments.com)
While helpful, don’t rely too heavily on the totalizer to do your fuel math for you. Similar to the negative effect that using GPS navigation can have on a pilot’s ability to navigate via a chart, over dependence on digital fuel systems can lead to problems. A fuel totalizer should be telling you what you already know, not doing all your math for you. Do your fuel math and confirm it with the totalizer. If it failed, you should still know how much you have and how much is needed.
Likewise, don’t rely completely on the accuracy of a totalizer. Technology isn’t perfect, and if the instrument isn’t quite calibrated correctly, the numbers could be wrong. Fuel information is absolutely critical, and thus warrants constant monitoring and double checking. When you do arrive at your destination, keep track of how much fuel the airplane takes and compare it to the numbers on the totalizer to verify its accuracy.
Unless you are flying an airplane which has a “both” setting, you will still need to be keeping track of how much fuel is available in the aircraft’s individual tanks. For example: our Bonanza has two tanks, but the totalizer doesn’t keep track of that information. If I don’t remember to switch tanks, I can run one completely dry and the digital read out will indicate the remaining gas in the other tank. The totalizer won’t indicate anything about the individual tank quantity until the engine quits and the flow drops to zero.
Pictured below on the left is a fuel selector from a Piper Aerostar. The airplane has two selector valves and three fuel tanks. While the system is not difficult to use, it does require proper understanding and regular monitoring to ensure that the fuel is distributed correctly. The picture on the right is the selector out of an A36 Bonanza. I love the simplicity of the Bonanza’s fuel system, but it still takes attention and intention on the part of the pilot to keep track of how much gas is available on either side.
The JPI unit that we have installed on our airplane even has an “hours and minutes remaining” screen as well as a “fuel required” screen. The totalizer actually talks to the GPS and is able to tell me how much gas I will need to get to my destination. Just remember that those numbers are computed only at the current flow and do not take into account the potential increases/ decreases in consumption which will occur as power settings are changed for descent and arrival into the airport. I may feel pretty good about my hours and minutes remaining when I’m sitting at 12,000 feet, but when center makes me descend to 5,000’ and I’m still an hour away from my destination, endurance will decrease. It also can’t take into account any additional flight time that may be required to shoot approaches, hold, or divert.
Have you ever heard of “G.I.G.O?” It stands for “Garbage In, Garbage Out.” What it means is that the information which the fuel totalizer is giving the pilot is only as good as the information that the pilot gave it at the beginning of the flight. The totalizer in our Bonanza does not have any method of checking the quantity in the fuel tanks. At start up the pilot inputs the amount of fuel on board the airplane and the totalizer keeps track of how much is burned which is then subtracted from that inputted number. Ergo, if the amount of fuel is not updated or is incorrect, the fuel total numbers displayed will be inaccurate. If a pilot told the computer that the tanks had been topped off, but didn’t verify it, the fuel could be exhausted and the totalizer would still indicate that there was fuel available. It is, therefore, VERY IMPORTANT to confirm the airplane is fueled to the amount desired (visually if possible) and use the fuel gauges in the airplane to verify the accuracy of the totalizer.
Use a timer: I like to use the timer on my phone to remind me when it is time to switch the fuel tanks. If I set the phone to vibrate and put it in my pocket, it will remind me to change tanks at the desired time if I haven’t remembered to otherwise. It’s also nice because I can write down exactly at what time (or quantity) I changed tanks so I can keep very accurate track of how much fuel I have in any given tank. This is especially helpful in airplanes that have more than two fuel tanks. Another option is setting the timer on a Garmin 430, 530, or G1000 to give an alert or message reminding the pilot to change tanks at a preset time.
It shouldn’t come as news to anyone that the importance of fuel planning cannot be overstated. I personally know multiple people who have run airplanes out of fuel because their planning wasn’t quite right or the weather changed and they were unwilling to take the time to stop. In the case of my Bonanza story earlier in this article, it was obvious to me before I even landed that I should have picked a fuel stop when it became apparent that I would arrive at my destination with less than my desired one hour margin.
The technology that we have now to help us keep track of our fuel usage is wonderful, but use it as an aid; not as your only source of fuel calculation. Remember to verify the amount of fuel on the airplane before you go because the number on the totalizer won’t mean anything if it doesn’t match the amount in the tanks! Above all, don’t be afraid to stop and get fuel when you need it. I’d rather have to tell the passengers that we need to stop for gas than deal with the potential consequences of running out.
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.
When a pilot first glances at the title of this article, the first thought that probably goes through that pilot’s head is, well that’s easy.
And it is, if you are flying a high wing Cessna. On other airplanes, there are a few tricks to checking the stall warning horn. If you get them wrong, you’re liable to get a bill from your maintenance shop for an hour of labor for a problem they couldn’t duplicate.
Cirrus SR22
Let’s start with the Cirrus. On the pre-FIKI Cirrus aircraft, there was a small little hole in the wing that contained a diaphragm. That diaphragm sensed a change in airflow at a certain angle of attack just below the critical angle of attack and set off the stall warning horn. Unfortunately, the only way to check that is to suck on the hole during pre-flight.
I don’t. I verify the hole is clear and that’s about it.
On the FIKI Cirrus aircraft, there is actually a stall warning vane. It looks like a high wing Cessna vane, but if you turn the batteries on and try and get it to come on during your light and pitot heat check, nada.
Here’s the trick, and the checklist doesn’t do a good job of describing this.
Turn on the Avionics Master
Turn on the speaker
Put the flaps to full
Then move the stall warning vane and you’ll hear the horn
The speaker and the Avionics Master are so you can actually hear the horn (if you had the headset on while you were doing this, the speaker would be unnecessary). The flaps have to be full because the pitch attitude for the critical angle of attack is lower with the flaps down, so the horn goes off when at a different angle. You then don’t have to use as much force to push the vane.
Piper PA46
The early -310P Malibus are pretty simple and straight forward. Move the vane, get the horn.
In the -350P, you can’t get the horn to come on by moving the vane. So, Piper put a stall test button that’s hidden underneath the upper left side of the instrument panel. Push that to test the horn. On the G1000 PA46, it is located directly above the PFD. On the Avidyne, it’s below and to the left of the pilot’s yoke.
Testing the stall warning horn is a very important part of pre-flight. A pilot needs to know if the aircraft is close to a stall. The advent of Angle of Attack indicators in small, GA aircraft, have added a greater awareness to the angle of attack during all phases of flight to avoid those stall spins.
If the stall warning horn goes off or the AOA shows yellow, lower that nose immediately.
