MODAERO NextGen Aviation Festival

GAMI Gains STC for G100UL, Unleaded Avgas

ByHank Gibson August 1, 2021August 30, 2021

For years, there has been clamoring for airplanes to get rid of lead in piston engine Avgas. In the early 2000s, Thielert created a Jet A burning piston engine for Diamond Aircraft that gained some traction, but Thielert had internal issues and ended up declaring bankruptcy. Several other Jet A piston engines have come down the line since then to some success (Diamond is currently using 2 Austro manufactured Jet A piston engines on it’s DA62 and a Continental manufactured Jet piston on the new DA50).

The problem with a Jet A burning piston engine, though, is that those engines would be very expensive to put on existing airplanes, not to mention the cost of the STC alone.

Insert GAMI (General Aviation Modifications, Inc.), the famed Ada, Oklahoma company that championed turbo normalization, balanced injectors, and lean of peak operations. For those that have been to GAMI’s engine class, you know that these guys are at the very top of their game in engine knowledge.

In 2010, GAMI started the process of creating an Unleaded form of Avgas, terming it G100UL (the irony of traditional Avgas, 100LL, is the LL starts for low lead, but the lead levels in 100LL are actually quite high. UL stands for UnLeaded). Just before Osh Kosh in 2021, GAMI revealed that it’s work has come to fruition, gaining an STC for G100UL for Lycoming powered Cessna 172s.

The amazing thing about GAMI’s product is that it is able to mix with 100LL and not cause any issues. This means fuel trucks, fuel lines, fuel pumps, and aircraft fuel tanks don’t have to have any modifications to them to use G100UL. Plus, pilots will see longer engine life using G100UL because of the simple elimination of the lead. In tests, combustion chambers in cylinders burned cleaner, so theoretically, cylinders and engines will last a lot longer.

According to the company, GAMI has a few more tests to run and, assuming those go well, G100UL will be available for a whole lot more airplanes. An STC will still be required for the use of G100UL in a specific airplane, but the hope is, eventually, 100LL will be completely replaced by G100UL. The only downside is that G100UL is expected to cost about $1/gallon more than 100LL.

GAMI has partnered with Avfuel, so expect to see 100UL showing up at all Avfuel FBOs in the next year or two.

To read more, check out the press release on AOPA’s website.

Texas Top Aviation at the AOPA Fly-In

ByHank Gibson May 9, 2014

Where were you on April 26th?

Texas Top Aviation was at the AOPA Regional Fly-In at the San Marcos Regional Airport (KHYI).  If you weren’t there, you certainly missed out spending time with 2,500 other airplane and flying enthusiasts!

The day began somewhat gloomy and windy with the threat of rain.  Organizers feared that weather would keep a lot of people from coming.  Boy, were they wrong!

There were many classic airplanes, many modern and pretty nicely equipped airplanes, and everything in between.  There were aviation celebrities, Rod Machado and the Kings of King Schools fame, to name a few.  Not to mention the fabulous BBQ!

Texas Top Aviation had several drawings for free training and 3 lucky winners.  We also had a Lancair Super ES for sale, N132BB (which made the San Marcos Record newspaper!). It definitely stood out with it’s unique paint job.  The flames on the tail drew many oohs and aahs.

Departing the San Marcos Airport after the fly in was like battling traffic in Austin at rush hour (though, Austin doesn’t have any air traffic controllers).  The San Marcos controllers probably hadn’t seen that much traffic since the airport was an Army Air Base back during WWII.  It was quite a sight to see all the exhibitor’s airplanes lined up ready to head skyward.

Thanks to all of you who stopped by the Texas Top Aviation booth!  It was a pleasure meeting all of you and we look forward to working with you in the future!

 

Diamond DA50 RG

ByHank Gibson July 15, 2020July 15, 2020

Diamond Aircraft announced in June that the company is going to bring it’s Diamond DA50 RG to market. The company expects European certification in early 2021 and FAA certification toward the end of 2021.

This is not the first iteration of the Diamond DA50, but it is the first with retractable gear. Diamond is known for it’s use of Jet A burning piston engines and you can’t beat the efficiency. The technology in the Continental CD-300 Jet A piston engine is new, but it has been in development for a long time. Diamond advertises 180 knots on only 9 GPH, which is just about as efficient as you can get with a single engine piston.

The addition of the retractable gear from previous iterations of the Diamond DA50 RG is a nice touch. Diamond already had the RG technology from the DA42 Twin Star as well as the more powerful cross country machine, the DA62. Equipping the single engine Diamond DA50 RG with retractable gear just makes sense. It definitely puts the airplane in a class of it’s own.

Diamond’s website shows a nice roomy cabin in the DA50 RG with plenty of space to spread out, plus plenty of baggage. The fuel tanks only hold 50 gallons of Jet A (which still gives a 4 hour + range with an hour reserve at 9 GPH), so the payload, even with full fuel, is an eye popping 897 lbs, though Diamond’s site does not mention if that includes TKS, air conditioning, and oxygen. If it does, then compare that to a fully fueled Cirrus SR22T (which would give an equal speed) at 537 lbs and the Diamond DA50 RG has an argument.

As with all new airplanes these days, the Diamond DA50 RG has the Garmin G1000 NXi complete with keypad and the GFC 700 autopilot with yaw damper. The interior has a 3 person bench seat for the back seat, which, at least to the naked eye, appears that it might actually fit 3 adults, albeit small ones. Diamond’s signature stick in the middle of the seat is still present for the front seats, but the right seat stick in the Diamond DA50 RG is removable for passenger comfort, a nice touch.

The single engine piston market is a hard one to break in to since Cirrus has such a leg up on the competition. However, with a Jet A burning engine, a higher payload, and a roomier cabin, the Diamond DA50 RG might actually be able to make an impact. Look for this bird at Sun N Fun and Osh Kosh in 2021.

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.

Recurrent Flight Training

ByHank Gibson August 7, 2014August 7, 2014

As all pilots know, the Federal Aviation Regulations require licensed pilots to go through recurrent flight training in the form of a Flight Review every 24 months.  The regulations require 1 hour of ground review and a 1 hour flight.  This is all that a pilot has to do to legally maintain his or her VFR currency to fly alone in an airplane.  Of course, when passengers are aboard, the pilot has to have done 3 takeoffs and landings in the previous 90 days.

What if the pilot in question hasn’t flown in 20 years?  All the regulations require is 1 hour of ground review and a 1 hour flight.  Kind of scary, isn’t it?  (Any instructor worth his salt would not, however, turn a pilot loose with just those flight review minimums if they haven’t flown in 20 years without an extensive amount of recurrent flight training)

Now, a lot can happen in 2 years in between those flight reviews.  Regulations change, airspace is modified, and skills change (for the better or worse, most often for the worse over a period of not flying).   For a current pilot who flies once or twice a week, those minimums are no problem.  Here’s the thing, though.  Even those current pilots typically don’t do a lot of stall practice or emergency procedure practice on their own.  These are the most critical areas of flight and to only do them every two years leads to a lot of rust building up, sometimes even causing safety concerns in some instances.

How to remedy this?  Scheduling recurrent flight training as often as possible with a good instructor who puts you through your paces.  Do this often enough and stalls will become second nature.  The stall warning horn goes off?  Well, lower the nose and add power.  Engine failure?  Switch tanks and set best glide.  Recurrent flight training allows you to become as familiar as possible with your airplane, allowing you to know what to do in every circumstance.

What’s a good recurrent flight training schedule?  There are several options out there.  The WINGs program is a pretty good option, though you will only have 3 flight training sessions in those two years instead of 1, but it’s a good start.  In recent years, the FAA has put out Advisory Circular 61-98B encouraging pilots to begin personal currency programs for themselves.  The suggested schedule for VFR recurrent flight training is every 4-6 weeks.

Texas Top Aviation highly recommends this suggested schedule, for both VFR and IFR.  The AC doesn’t have a specific recommendation for IFR recurrent flight training, but flying 2-3 approaches a month with an instructor helps keep pilots as proficient as possible in the IFR environment.   This way, the instructor can introduce circumstances in a controlled environment that simulate abnormal conditions that might possibly be encountered in flight.  If those abnormal conditions are encountered, then it will be second nature on how to handle them, leading to less accidents and safer flying habits.

Try to schedule your recurrent flight training every 4-6 weeks and your piloting skills will stay top notch, keeping you safe and proficient in every circumstance.

MMOPA Operating Practices for the Piper PA46

ByHank Gibson February 22, 2019

I have the privilege of serving on the Malibu & M-Class Owners and Pilot’s Association Safety Committee.  Along with 6 other Piper PA46 instructors, we were tasked with two things last year leading up to the MMOPA Convention in Colorado Springs last October.  The first was to develop a Master Aviator Program (more on that in a later article).  The second was to develop Operating Practices for the Piper PA46 fleet that we as instructors could all get on board with to teach the same thing, allowing everyone in the fleet to fly approaches and patterns the same way.

When I started instructing in the piston Piper PA46 line (the Malibu, Mirage, and Matrix), I was surprised to find that there were no recommendations anywhere that I could find for approach and pattern power settings and airspeeds.  This led to some experimentation on my part trying to find out what works well for the airplane.  I had originally been given good training in a Malibu, but hadn’t flown one for several years, so my numbers were a bit rusty.

I have been in the Cirrus world for a very long time.  One thing I greatly appreciated from an instructing point of view about Cirrus was the abundance of guidance the factory gives instructors and pilots on how the airplane is supposed to be flown.  All CSIPs and all Cirrus pilots should (theoretically) be teaching and flying the exact same way.

I was quite surprised that Piper didn’t put out similar information.  I wasn’t as familiar with MMOPA at the time, but was surprised they didn’t have any information either.

I apparently wasn’t the only one with a desire to have a little bit more standardization.

So, without further ado, here are the MMOPA Operating Practices that the Safety Committee put together.  If you are a new Piper PA46 pilot, these numbers are what you will expect to use when you do your Initial training.  If you are a seasoned Piper PA46 pilot, you probably fly these numbers, or pretty close to them already.

These are tried and true power settings and speeds for the approach phase and landing phase.  They work. That was the goal of the Safety Committee:  put down in writing something repeatable to enhance safety.  I believe we have accomplished that.