So the Word became human and made his home among us. He was full of unfailing love and faithfulness. And we have seen his glory, the glory of the Father’s one and only Son (John 1:14).
From the Texas Top Aviation family (Hank, Kelsey, Everett, Cooper, and Cord) to your family, we wish you a Merry Christmas! We are thankful for how the Lord has blessed us this year. We pray for blessings on your family this coming year.
For the most part, flying through rain is a non-event. If the NexRad or Radar is showing light green or dark green, usually there aren’t that many bumps and your plane just gets a wash. Sometimes the visibility drops down a little bit making us IFR pilots have to transition to our instruments.
It get’s a little more exciting when the precipitation on your screen turns to yellow. This means there is a lot more precipitation echoes either in the clouds or coming out of the clouds, meaning harder rain. I usually tend to stay away from yellow unless it’s absolutely necessary to go through it.
I had a situation a few weeks ago where I deemed it necessary to fly through some yellow NexRad returns. I was flying a G1000 Columbia into Monroe, Louisiana, KMLU. The winds were mostly light, but slightly favoring runway 04, which was the runway in use. As I got closer, a decent size rain shower with mostly yellow returns was sitting over the final approach fix for runway 04 and slowly tracking to the northeast.
I didn’t particularly want to spend the entire approach getting beat on with rain, so I decided to fly the RNAV 14 approach at MLU and circle to land on runway 04. The rain hadn’t quite reached the airport yet, so I decided that circling to 04 should be no problem.
I started the RNAV 14 at the FLESH IAF. Since I was approaching from the west, I did not need to do the procedure turn, so I joined the Final Approach Course (FAC) after crossing FLESH.
In the meantime, that rain shower was inching closer to the FAC for the RNAV 14. I wasn’t concerned about my safety if I flew through some of it and I didn’t have passengers on board who would get nervous, so I elected to continue. I wasn’t seeing any lightning coming out of the clouds, so it appeared to only be moderate rain.
Just before I got to JIVEY, the FAF, I entered the clouds and the rain. About 20 seconds later, my altimeter and airspeed started bouncing around a lot. Now, based on all I’ve said so far, what would cause that, and what would you do?
(Jeopardy theme song playing while contestants ponder questions)
The answers? Due to the moderate precipitation, water had gotten into my static port and caused the unusual readings on my altimeter and airspeed indicators on the G1000.
I had experienced this before, so I knew what to do. I reached down and turned the static source from primary to alternate, which starts taking static pressure from inside the cabin in the Columbia. Instantly, everything went normal.
The other time I had experienced this was also in a Columbia, so I’m under the impression that the way the Columbia static ports are designed, they are a little bit more susceptible to water creeping into them than other airplanes.
Moral of the story? If your pitot/static instruments start jumping around, the first thing you do is turn your alternate static source on.
When filing an IFR flight plan, part of the process is determining whether or not an alternate airport is required. An alternate airport is required when the following conditions exist(as is outlined by the FAA in 91.169 (b)):
The weather conditions at the destination airport
From 1 hour before your arrival time to 1 hour after your estimated time of arrival, the weather conditions are forecast to be below
2,000 Feet AGL and/or
3 statute miles visibility
Let’s paint a scenario. You are traveling from KSAT (San Antonio International Airport) to KHBV (Jim Hogg County Airport in Hebbronville, TX). You start to file your flight plan and get down to the space where you put your alternate in. Since Laredo (KLRD) is the closest airport with a TAF, you check Laredo’s TAF and see that the forecast conditions there at your ETA are ceilings 1,500 and visibility of 2sm.
Based on this information, you need an alternate airport. Now, the process of finding one. In Part 91.169 (c), the forecast conditions at the alternate airport must be at or above:
600 Feet AGL and 2sm visibility for a precision approach, or
800 Feet AGL and 2sm visibility for a non-precision approach
Alright, now we have some guidance. Laredo is the nearest airport to KHBV, and we know the forecast from the above TAF showing the conditions are forecast to be above the alternate minimums outlined in Part 91, so let’s pick Laredo. All done?
Not quite. A lot of airports have Non-Standard Alternate Minimums. How do you figure out if they do? The easiest way is to look at any approach plate for the airport. In the notes section of the government plates, there will be a black triangle with an A in it. That means there are non-standard alternate minimums published for that airport (in layman’s terms, different than the ones stated above in Part 91).
Now the question is, where do you find those non-standard alternate minimums? On Foreflight:
Go to the Airports page
Tap the Procedures button
Tap the Arrival button
Tap the Alternate Minimums option
This brings up the IFR Alternate Minimums document for all the airports with non-standard alternate minimums in that area. Scroll through to find Laredo.
As you can see, there are several notes there concerning the different approaches into Laredo. For our example, we’ll say the winds are out of the south and we are planning on flying the ILS 17R if we cannot get into KHBV and have to come to Laredo. The note there is that the Alternate Minimums for the ILS 17R are actually 700 AGL ceilings and 2sm instead of the above state 600 AGL ceilings and 2sm, the procedure is NA if the tower is closed, and NA if the local weather isn’t received.
What does this tell us? If the forecasted ceilings at Laredo were below 600 AGL instead of 700 AGL, we would not be able to use LRD as an alternate airport if we were planning on flying the ILS 17R. The RNAV approaches are all fair game, so a GPS equipped aircraft would have no problem.
On top of that, some approaches at a certain airport are not authorized to be used in the case of the airport being used as an alternate. At the Galveston airport (KGLS), the ILS 14 is NA as an alternate procedure, but all the RNAV approaches are available.
Picking an alternate seems simple at first, but there are actually a lot of things to consider in the process.
Need help remember all this stuff? AOPA has put out a kneeboard sheet that helps all IFR pilots remember those important things when it comes to IFR flying. Check it out here.
The Malibu and M-Class Owner’s and Pilot’s Association (MMOPA) announced new Safety Foundation Training videos in September. The videos are aimed at both new Piper PA46 pilots and existing Piper PA46 pilots, all in the effort to fly the Piper PA46 to the highest and safest standards.
Six videos have been released thus far, with the promise of more to come. The topics of the first videos are:
Instrument Approach
Visual Approach
Manual Gear Extension
Emergency Descent
Descent Planning
Takeoff and Climb
Eventually, the goal is to release high quality training videos encompassing all aspects of Piper PA46 flying.
To view the videos, you will need an MMOPA membership. The link to the MMOPA Safety and Education Foundation video page is: https://www.mmopasafety.org/education/
MMOPA will be hosting it’s second Safety Standdown event at many locations across the country for Piper PA46 owners and pilots. The first iteration of MMOPA Safety Standdown in the fall of 2019 was a big hit. Each event was very well attended by MMOPA members.
What is Safety Standdown you ask? Safety Standdown was put together as a mid-year training event as part of the MMOPA Master Aviator program. It’s goal is to allow PA46 owners and pilots to fly in to a location at a reasonable time (the event starts at 10am local time), received some good quality ground training over relevant safety topics by highly experienced PA46 instructors, have a free lunch, then depart mid-afternoon to arrive back home before dark.
The event is free to all attendees. Lunch will be provided at each location. This event is not exclusive to MMOPA members, either. Any PA46 owner or pilot, or just anyone interested in the PA46 world, are invited to attend.
Texas Top Aviation is hosting the South Central Region Spring Safety Standdown at the Henrickson Jet Center at the Austin Executive Airport (KEDC). Hank Gibson and Pedro Vargas-Lebron will be presenting on the following topics:
MMOPA Operational Practices review and importance of stabilized approaches
Crosswind Takeoffs and Landings
High Density Altitude Operations
A discussion of thunderstorms, resources in the cockpit for weather avoidance, and accidents that have occurred involving thunderstorms
The MMOPA Spring Safety Standdown will take place on Saturday, April 18th, 2020. Registration is required for the event. The link for registration can be found here.
Come on out for some high quality training and free BBQ with 50 of your closest PA46 buddies!
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.
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.
