Thanks For Flying With Us!
From our family to yours, thank you for flying with Texas Top Aviation in 2014. We wish everyone a Happy New Year and a great 2015!
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Landing Light Replacement
One evening this summer, my wife and I were flying down the southern shore of Long Island in my father’s E33 Bonanza. We enjoyed the sunset as we flew westbound and our plan was to fly the New York Hudson corridor, where we would arrive just after dark. As we approached New York’s airspace, two voices in my head started having a debate.
The first voice said: “You should turn on your landing light when you get to New York to make the airplane more visible.”
The other voice said: “That’s true, but I bet you’ll burn the landing light out”
Well, as it turned out, both voices were right. My landing light fired right up when I needed it to fly the Hudson, but when it came time to land back home I had no such luck. Unfortunately, this was not the first time that I had been given the chance to practice my blackout landings. This Bonanza model has only one landing/ taxi light which is mounted in the lower cowling behind the propeller. This location is less than ideal because the filament in the bulb is fragile and can be damaged by engine vibration.
We landed uneventfully and after putting the airplane away, I decided it was time to look into upgrading the lighting to something a little more modern. I was unsure of my options, but seeing as the airplane needed a replacement bulb regardless, it seemed like a good opportunity to make a change.
After doing a little reading, I learned that HID or LED landing lights would be the best solution to my problem. I was familiar with LED aircraft lights, but had never heard of HID before.
Here is what I learned:
HID Landing Lights
HID, or High Intensity Discharge landing lights, create light by arcing electricity through a sealed gas capsule. They are brighter than LED and traditional incandescent, and the light created more closely resembles the look and feel of sunlight. HID installations require a ballast to carefully regulate the flow of electricity to the gas capsule and also require a “warm up” period after being turned on in order to reach their full brightness.
Fitting an aircraft with HID landing lights tends to be more expensive and time consuming than installing an LED light and would likely require involvement by an A&P/ IA. However, if you want the brightest light available, HID is probably the best bet.
Pros
- Brighter, more natural looking light
- Draws less power than standard bulbs
- Long bulb life
- Does not generate much heat
Cons
- More expensive than other lighting options
- Lights must “warm up” after being turned on
- Cannot be pulsed easily
- Cost/complexity of installations
LED Landing Lights
LED, or Light Emitting Diode landing lights, have no filament and work by moving electricity through diodes which are connected into a circuit. These lights have become very popular for many uses due to their simplicity, low cost, and brightness.
While not as bright as HID light, the LED lights require no “warm up period” and can be easily pulsed. LED lights draw much less power from the aircraft’s electrical system than traditional bulbs and boast incredible life length. LED bulb installation is very simple and can often serve as a direct replacement for the original lights.
Pros
- Instant light (no warm up)
- Incredible life length (>5,000 hours)
- Low Cost
- Simplicity of installation
- Can be pulsed easily
- Low power draw
Cons
- Not as bright as HID lighting
After weighing the options, I decided to replace the incandescent bulb in the Bonanza with an LED bulb. I read the reviews online and talked to some of my friends who work in aviation and eventually decided on the Lycoming Alphabeam. The Alphabeam is FAA/PMA approved and is available through Aircraft Spruce and other aviation parts vendors. The bulb cost around 250-300 dollars and I was able to install it as a direct replacement for our old light. All I had to do was take the old one out, put the new one in, and make a logbook entry.
Below are some pictures of the installation:
After removing the old bulb, I double checked the information on the back to be sure I ordered the correct LED replacement. 
You can see that the bulb is a 13V, 250W landing light, #4313. 
The new light mounted easily into the existing bracket with no modification. 
After mounting the new bulb, I reconnected the wiring and installed the bracket back into the nose bowl. 
It works! Last weekend I finally had an opportunity to take the airplane out after dark and see how the new light compared to the old one. I am pleased to say that it did a wonderful job and exceeded my expectations.
If you are interested in seeing a side by side comparison of the different lighting options, a quick Google search should provide what you are looking for. In my own experience, I would say that the LED light was brighter than the old light and did a very good job illuminating the taxiway and runway. It was extremely nice not to be concerned that my light wouldn’t work as I was setting up for landing at an unfamiliar field after dark. I also enjoyed feeling that I had the option to leave it on during climb and cruise in order to increase my visibility to other aircraft.
Many models of aircraft have multiple landing/ taxi lights installed which greatly reduces the likelihood of having to land without one. In our case, spending the extra money to upgrade to the LED bulb made sense because of the desire for increased reliability. If you are looking for a relatively inexpensive way to upgrade your airplane, LED or HID lighting may be something to consider.
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.
Hank Gibson Featured on Joe Casey’s The Malibu Guru Podcast
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.
A Flying Car in the Future?
EAA Airventure at Osh Kosh always draws great innovators every year, leading the aviation consumer to discover something new and different. Flying cars have always been a dream for the everyday pilot. Why not fly to work? Why not park the plane in the parking lot? Why not drive from the runway onto the freeway? All excellent questions!
Well, Samson Motorworks is trying to make those dreams a reality. Samson’s Switchblade flying car is in the (hopefully) finally stages of development this summer. The company expects to be able to conduct test flights early next year, then begin selling the experimental kit.
The Samson Switchblade will be in the Experimental category, but Samson has a builder assist program that only adds $20,000 to the final cost of the kit. The total price of the kit, which comes 49% completed and only takes 3 weeks to complete with the builder assist program, comes in at $140,000. That includes the engine, avionics (it’s equipped with Dynon’s 7″ Skyview glass panel display, a Dynon radio and transponder, a Dynon intercom, a Dynon AOA, an iPad mini, and an ADS-B GPS), and the builder assist program. Similar to a Cirrus, it is also equipped with a Ballistic Parachute Recovery system.
The Samson Switchblade has several different engine options, including a supercharged, liquid cooled, V-4 similar to a Corvette engine that will produce 190 HP. Max cruise in the air should be around 170 knots. The Switchblade will hold 30 gallons of mogas, burn 9 GPH in the air, and get 35 mpg on the ground. The gross weight will be 1,750 pounds.
How does the car to plane transition happen? Samson has developed a fly by wire system to retract the rudder down while the car is in drive mode. The wings use a mechanical linkage to fold up into the belly.
There are several different packages for the Samson Switchblade: the Snowbird, the Aurora, and the Trek options. Details can be found on Samson’s website.
I, for one, will be keeping an eye on the freeways next summer to keep an eye out for cars sprouting wings. No more traffic jams!
An Educational Runup
When a pilot thinks of an engine runup in a single engine piston airplane, typically it is let’s find out if the engine is running rough or not, meaning a spark plug is fouled. Believe it or not, there is a little more to learn from a runup than just checking the spark plugs.
A distinct advantage to having an engine monitor that monitors all EGTs and CHTs is you get a better idea of engine health. When switching to one magneto or the other during the runup, all the EGTs should rise, showing that the temperature of the exhaust gas is going up from each cylinder. This occurs because when running on only one magneto and one set of spark plugs in each cylinder, the mixture takes longer to burn, so, when the exhaust valve in the cylinder opens, the burn is still on going and this hits the EGT probe, causing a temperature rise. An indication of a magneto failure in flight would be a rise in all the cylinders EGT without a change in mixture setting.
Now that we know what to look for when checking each magneto, what would one look for to show that there is a problem? The basic that each student pilot is taught still applies. The engine manufacturer puts a limit on RPM drop during the runup. When checking one magneto or the other, watch for an excessive RPM drop. If the RPM drops past the limit, this usually will be accompanied by engine roughness.Why is that? Let’s look at the cause for the excessive RPM drop. For this, we need to go back to our EGT indicators. Let’s say we have a 6 cylinder engine. When the key is turned to the right magneto, the RPM drops 250 RPM and the engine gets very rough. Look at the EGT gauge. The cylinders where the spark plugs are firing normally will all show a temperature. The cylinder (or cylinders) where there is no combustion, meaning a bad plug, will show no temperature. This is because the mixture is just sitting in the cylinder and not igniting, therefore, no exhaust gases will be pushed out so there will be no EGT indication for that cylinder. This is also how you tell a mechanic which cylinder to check for the bad plug.
It could also be a bad magneto. If multiple cylinders EGT all drop, or the engine wants to quit entirely, you have a bad magneto or bad ignition harness.
What else can you learn during the runup? Electrical system health is key, especially in all electric airplanes (meaning no vacuum system). It’s a very good idea to turn on all the lights and pitot heat to ensure that a rise is indicated on the ammeter. This means the alternator is carrying the load and working properly.
The next time you do your runup, keep an eye on your EGT to see the rise during a magneto check.
The Importance of a Pre-Buy Inspection
There are multiple ways to save money during the aircraft buying process. To start, since you are buying an airplane, you have some means of positive income in order to afford an airplane. Airplanes come in all different shapes and sizes and usually, an airplane can be found to fit almost any budget, whether is a $20,000 Texas Taildragger all the way up to a multi-million dollar jet.
One way is to stay within your budget. There will always be a shinier, newer, lower time airplane that is just above where you set your budget at. Don’t reach for it! There is a reason you set your budget where you did.
Another way is to shop around and get multiple insurance quotes. Your agent is in charge of engaging underwriters who are going to evaluate you and your airplane as risks, then price a policy accordingly. With most airplanes, you should get multiple quotes to see what fits you best. Beware though, because sometimes, you can get a lower rate, but it will require more training, so you end up shelling out more money in the long run. If you find a policy you like, but the training seems skewed or the liability isn’t high enough, you can always have your agent ask the underwriter to modify the quote. You are still in charge.
Finally, if you evaluate your mission and see that your budget can’t afford an airplane that carries enough or goes fast enough, look into taking on a partner or two to help with costs. Be thorough in vetting your potential partners as a good partnership is worth it’s weight in gold, but a bad one is downright unpleasant and often times hard to get out of. Find pilots who have the same mindset & personality you do and treat their stuff the same way you do. Try to take a ride in their car or go to their house, then you’ll see what kind of shape they will keep the airplane in.
The best way to cost yourself more money in the aircraft buying process?
Don’t do a pre-buy inspection.
A pre-buy inspection takes place after negotiations and once a Purchase Agreement is in place. You are pretty much set on the airplane, you just want a third party mechanic who is knowledgeable on that make and model of airplane (and this is a very important point) to go over it and make sure that it is sound from a mechanical standpoint. The buyer, you, want someone who has never had an association with the seller since the mechanic will be your representative in the process and you want him answering to you.
If you have used a broker or a buyer’s agent, that person should have already gone through the logbooks for you, so you’ll have a basic idea of the history of the airplane. However, knowledgeable mechanics find things all the time that turn out to be the responsibility of the seller to repair since it happened on their watch. Without a pre-buy, you would end up having to pay for that in the not to distant future.
Here is an example of where not doing a pre-buy can cost a lot of money.
An owner bought a late ’70s model Citation ISP, one of the very first Citations ever made. It had been based in Florida (salt & humidity + aircraft don’t mix well) for a while. The buyer didn’t use a broker, but thankfully had someone look through the maintenance history of the airplane. Since it was so old, the logbook reviewer didn’t have time to do anything but a basic overview, but he gave the thumbs up to the buyer.
The buyer decided he just wanted a boroscope inspection and the seller’s mechanics to look over the airplane. Remember what I said before about a third party mechanic? Well, these mechanics didn’t do a very thorough job. When the buyer took delivery of the plane, after about 10 hours of flying, he already had an $18,000-$25,000 maintenance bill.
You may say, well that’s a jet. Jet’s have specialized maintenance and need a more extensive pre-buy inspection.
On the contrary, in my 8 years in the training business, I have seen Cirrus, Piper PA46s, Bonanzas and several other piston engine airplanes that either didn’t have a pre-buy done or the pre-buy was done by someone who didn’t know that airframe. Lo and behold, things started breaking and adding up very quickly that would have been discovered on a good pre-buy inspection.
Don’t skip on the pre-buy inspection. They usually run a few thousand dollars, but save tons of money in the long run.
Angelina County Airfest
The Angelina County Airport in Lufkin, TX (KLFK) will be hosting the Angelina County Airfest on Saturday, October 10th. The airport will open up at 9am.
Prepare for a day of food, fun, and some great performances. There will be warbirds and many other classic airplanes on display, not too mention a number of aerobatic performances as the day goes on.
To learn more about the Airfest, visit the Angelina County Airfest website. Tickets start at $10 for adults.
