Most pilots have seen the Icon A5 light sport amphibious aircraft. It’s a neat design that can land on water or on a runway. The high wing design with a pusher prop has foldable wings that allow it to be put on a trailer and towed behind a vehicle, allowing it to be offloaded at boat ramps (it also begs the question can you wakeboard behind it?).
Apparently, not all non-pilots know about the Icon A5. Last week, one landed in the water near a beach in Southern California, but most of the beach goers and local authorities believed it had crash landed in the water. Emergency crews were dispatched, but everyone was surprised when the two occupants crawled out on the wings, had a cup of coffee, and took back off.
You have plans to fly to an airport 218 miles north for a business meeting. Your window is tight; you have an early morning meeting at your office you can’t miss prior to leaving for the airport. The colleagues you are flying to meet must catch another flight within two hours of your target arrival time.
You’re comfortable flying in the current weather conditions, but a small southward-moving storm north of your destination might threaten your approach. Additionally, given the time of day, you can expect ATC delays due to vectors and know you’ll have to adjust on the fly.
Are you confident you can make the meeting in time?
If the answer isn’t immediately clear, you’re not alone. Good aeronautical decision making is of utmost importance in the air. External pressures, unexpected challenges, and your level of instrument proficiency are among the many factors to consider when considering an IFR flight.
While we can’t remove the external pressures or control the weather, we CAN help with instrument proficiency!
Introducing … The Aviator’s Academy – advanced online pilot training.
During my time training hundreds of capable and competent pilots at Texas Top Aviation, my most common observation with seasoned and rookie pilots alike is that the pilot is often aware of knowledge gaps with the airplane’s avionics after initial flight training or after upgrading to a more advanced airplane, but aren’t sure where to get answers. Simply put – expert glass panel flight training is hard to find.
They know enough to have earned their license, but still feel uneasy anticipating unexpected challenges. This leaves them feeling at best, uncomfortable, or worse, on edge and unsafe. When you’re not as proficient as you could be, an easy flight can become stressful quickly in unexpected scenarios, and things spiral from there. It doesn’t have to be this way.
That’s why The Aviator’s Academy offers online courses with real-life scenarios using glass panel avionics. You’ll gain more confidence in the air and be equipped with better aeronautical decision-making skills after learning from the best in the business.
We understand the pressures you face in the air. We get it because we have been providing expert, personalized, owner/pilot instruction since 2014 at Texas Top Aviation. With over 8000 hours of instruction given in Technically Advanced Aircraft and over 13,000 hours in total flight time, The Aviator’s Academy instructors are qualified to fly and instruct most single-engine aircraft to a level that far exceeds what a flight school can provide. Nowhere else can you get expert glass panel online instruction for Technically Advanced Aircraft.
If you’re in need of an instrument proficiency check and fly a technically advanced aircraft with glass panel instruments, this is the place to get your ground school training. Conveniently online. Expertly taught.
Mastering your glass panel avionics isn’t impossible. You just need a guide. Enroll in the course you need to take your skill to the next level. You’ll receive expert, specialized online training. Then you’ll fly with confidence.
LAUNCHING AT OSHKOSH! Visit www.aviatorsacademy.com and leave us your email to be notified when our first course drops. Come visit us at booth 3004 at Osh Kosh, July 25th-July 31st, 2022.
When it comes to turboprop engines, a hot start is a really bad thing. For you piston drivers out there thinking, “What’s the big deal, you are just starting a hot engine,” then here’s a little education for you.
In a PT6 turboprop engine, there is a very important temperature gauge that a pilot monitors very closely during each and every start. It is called the Inter-Turbine Temperature gauge, or ITT. This temperature is a measurement of the exhaust gases between the compressor turbine and the power turbine (s). In the picture below, the probe is located where the blue and red colors meet.
In a turboprop engine, specifically the Pratt & Whitney PT-6 in all it’s different sizes and variations, there will always be a specific temperature that the pilot will want to keep the ITT below. This article will deal specifically with a Piper Meridian.
A Piper Meridian starts hotter than almost any other PT6 engine because of the way it’s air intake is designed. Unlike other turboprops, the Meridian has a permanently open inertial separator. This means that not all the intake air makes it to the engine during start because some of it goes out the inertial separator opening. So, coming to a Meridian from operating other turboprop engines can lead to a little bit of a surprise on the ITT temperature being higher than what a pilot is used to when starting.
As a rule of thumb, when starting a Meridian, never let a start continue when the ITT hits 875 degrees. Based on the chart below, you are still in the safe zone at 875 and have about a 50 degree buffer before you have to start getting worried.
On cold starts with a good battery or a GPU, 875 is typically not an issue. Most starts when cold are going to be in the high 700s or low 800s. On a cold start, if you are seeing starts in the mid to upper 800s, try starting with a GPU and see if that lowers the start temperature. If it does, then that means your battery is weak and needs to be replaced. Another tell-tale sign of a weak batter is the Ng doesn’t spool up properly (meaning it settles around 12-13%) or takes a really long time to spool up. Also, never start on the battery with less than 24 volts.
When there are multiple flights in one day, the pilot has to take into consideration the warm engine prior to starting. If the ITT, prior to the start sequence, is above 150 degrees, it is time to do some motoring of the engine.
What is motoring? It is simply using the starter to turn the engine, which leads to air being sucked into the engine allowing the engine to cool off prior to start. The theory is, the cooler your engine prior to start, the cooler the ITT peaks at during start.
Here’s the steps on how to dry motor a Piper Meridian:
Battery on
Strobes on
Fuel Pumps and Ignition off
Throttle idle
Condition Lever feather/cutoff
Push the start button
Monitor the ITT temperature
Reaching 150 degrees, if less than 30 seconds have elapsed:
Fuel Pumps on
Ignition On
Condition Lever run
Reaching 150 degrees, if 30 seconds have elapsed:
Push Manual/Stop button to stop the start
Let starter rest for 30 seconds
The starter has a 30 second limit on the Meridian, followed by a 30 second rest period. You can do the sequence twice, then, after the 3rd start, there is a 30 minute rest period. Typically, if the ITT won’t cool down to 150 after the 3rd time, there is probably something wrong.
The most important thing a pilot can remember is never, ever push the condition lever forward if the ITT is above 150 degrees. You’ll be well on your way to avoiding hot starts that way.
I am on a mission in flying for my head to be as comfortable as possible. I’m currently going through the process of experimenting with different ANR headsets to see which ones squeeze my head the least (which I’ll be writing a future article about). In the meantime, I decided to focus on sunglasses.
I wear glasses (can’t do contacts anymore since they irritate my eyes), so anytime I have a headset on, I have frames running underneath my ear cups. I had a pair of prescription sunglasses for years that were okay, but still caused soreness above my ears after more than 3 hours of flying. I routinely fly 4-5 hours a day in training folks, so I had to find a better solution.
I saw an ad in Flying Magazine one month for Flying Eyes sunglasses. It was a relatively new company with a cool concept. A pilot started the company with the goal to create as thin a pair of sunglasses frames as possible to increase the comfort and decrease the ANR loss when wearing sunglasses. What the company came up with is pretty cool.
The ultra-thin frames on the all the different Flying Eyes models are made out of Resilamide. The material is so strong that the frames can be bent back and forth while not breaking. The company even brags that the frames are virtually unbreakable. I had to try these out.
I ordered a pair of the Golden Eagle Sport sunglasses. The process of getting prescription lenses in them was no big deal and took about a week. The eyeglasses shop initially thought the shape of the lens could be an issue, but it proved no problem at all. The lens manufacturer even managed to chip the frames, but Flying Eyes sent a new set of frames for free, even though it was not at all their fault.
In about a month and a half of flying with them, they are very comfortable. Some squeeze on the side of my head after extended periods of wear underneath a headset, but I’m exploring headset options currently (see above). Much improved over my last set of sunglasses.
Flying Eyes offers several different frame models, some of which are prescription compatible and some which aren’t. The Golden Eagle Sport frames run about $180. Orders can be placed on the Flying Eyes website.
Ordering new sunglasses from Flying Eyes? Use this link to receive 10% off your order.
6th Annual Armed Forces Weekend Celebration & Fly-In, May 20-21, in Brady, TX and Curtis Field (KBBD)!
Friday Night on the Square – FREE
Fly-In Saturday, 9-4 – FREE
A Night in London with Sentimental Journey Orchestra
Saturday night 7-11 PM
Tickets for Dinner & Dance, $30 available at www.morganmilitaryaviationmuseum.com.
Recently, I did my TBM and Meridian recurrent training with Joe Casey of Casey Aviation. I always like being challenged my more seasoned instructors than me because I always get to learn something. When I learn something, it makes me a better instructor and allows me to give better instruction to my customers. Plus, there is still a bunch that I don’t know!
Joe has a podcast titled The Malibu Guru (because he really is the Malibu guru!). During our training, we did a podcast together and he interviewed me. I get to tell about Texas Top Aviation and some exciting things coming up this summer (hint: the biggest exciting thing is called The Aviator’s Academy). Before I give too much away, take a listen to the podcast.
I got a call today from a friend asking me about oxygen requirements. That got my brain pondering about the different items the FAA would like all pilots to know. I did a little refreshing and found several other tidbits directly from the FAA that I thought worth sharing. No matter what you’re flying, I think these apply to all of us.
First off, what are our general oxygen requirements? If you jump on over to the FAR’s and take a look at 91.211 you’ll see:
1. At cabin pressure altitudes above 12,500ft MSL to 14,000ft MSL, pilots
required to use oxygen unless the segment is less than 30 minutes of flight.
2. At cabin pressure altitudes above 14,000ft MSL, the crew is required to use
oxygen.
3. At cabin pressure altitudes above 15,000ft MSL, each occupant must be provided the use of oxygen. This doesn’t necessarily mean they have to use it.
Things get a little more in depth when you get to pressurized aircraft.
These requirements are also listed in 91.211:
1. If you’re flying above Flight Level 250, a 10 minute supply of oxygen is
required for each person onboard.
2. If you’re flying above Flight Level 350-410, and one pilot leaves their seat, the other pilot will be required to wear an oxygen mask, unless both seats are equipped with quick-donning oxygen masks.
There are three basic components to any oxygen system in an aircraft: the storage system, the delivery system, and the mask or cannula. First, there are several types of storage systems.
Gaseous aviators breathing oxygen is the first. This is the standard green tank that everyone is familiar with. There are two types of tanks. Either the high- pressure with 1800-2200 psi or the low pressure tank with 400-450 psi. The major issue with these and General Aviation aircraft is weight. Some of these tanks can get bulky and heavy and therefore don’t work for everyone.
Liquid aviators breathing oxygen or LOX is another form of storage. The major advantage of LOX is that it has a 900 to 1 expansion ratio, meaning that 1 liter of liquid oxygen can be expanded into 900 gaseous liters of Aviators Breathing Oxygen. The disadvantages of LOX are they are extremely volatile and have to be stored at -197F. If it comes in contact with exposed skin, severe frost bite can occur.
Sodium chlorate candles or oxygen generators have a weight advantage like LOX. They’re essentially a canister that when activated mix sodium chloride and iron powder and produce oxygen. They general have a 600 to 1 expansion ratio, which goes back to the weight savings. However, once these are started they are very hard to stop. Another disadvantage is these devices produce a fair amount of heat, so proper precautions need to be taken.
Next are the delivery systems. The main systems are Continuous Flow, Diluter Demand, and Pressure Demand. Continuous Flow, is exactly as it sounds. The oxygen is allowed to flow continuously from the tank to the user. The benefits of continuous flow are you don’t need a complicated mask or regulator. The downside to this system is since it continuously pumps oxygen, you’re wasting oxygen when you exhale. Most of continuous flow systems are used on aircraft that generally fly below 28,000 feet.
Diluter Demand was designed to fix the negative of the Continuous Flow systems. Diluter Demand only sends oxygen to the user when the user inhales. The system also allows cabin air to be introduced in, sending the perfect mixture of oxygen to the user when needed. These systems are very efficient and generally tend to be used up to 40,000 feet.
Pressure Demand is designed to essentially “over inflate” the users lungs. This will basically pressurize the the users lugs and allow the user to fly above 40,000 feet. This is needed at flights above FL400 because 100% oxygen without positive pressure will not suffice.
The final portion of the oxygen system is the mask or cannula. Nasal cannulas generally are more comfortable and are regulated to 18,000 feet service altitude. Masks come in a couple different variants. From re-breathers to quick-donning, most masks accomplish the same task with a few small differences. Quick-donning must be able to be put on within five seconds and are rated up to FL400.
Since that was a lot of information, what does all of it mean to you? Most fair weather flyers will never run into any of this. However, the high performance owner/operator will run into oxygen use situations a fair amount. Taking the family up to Colorado on a ski trip, jumping up to 12,500 feet to get above some weather, or flying above 5,000 feet at night on a long xc are all situations where you may want to have oxygen on board.
If you are planning on doing any of this type of flying or are currently doing these types of flights, training is a must. If you’ve never been in an altitude chamber, I would highly recommend it. In college, I went with a group to Oklahoma City to the FAA’s headquarters where they hold a class on Hypoxia and High Altitude flying. It’s very informative to be in the chamber as it simulates being oxygen deprived. You get to see how you’ll react and what kind of symptoms you’ll have when in a loss of oxygen situation. Each person has different symptoms, so it’s important to see how you will react.
It’s also good to fly with an experienced instructor. Finding an instructor who will allow you to learn in a safe environment is worth its weight in gold.
Ryne Bergren is currently a First Officer with Mesa Airlines in the CRJ 900. Ryne has experience in many different areas of aviation, from corporate to airlines to teaching to ferrying across the Atlantic Ocean. His passion is for all things that travel across the big blue sky.
