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.
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.
Picking up an IFR clearance at first can seem very simple. But, when taking off from an untowered field, especially if a pilot is based at a towered airport, it can be a little more complex. Based at an untowered field? The towered procedures are a little more streamlined, but still different.
Towered Airports
Class B or Class C
At Class B or Class C airports, there is a dedicated frequency to get an IFR clearance and VFR departure instructions called Clearance Delivery. It is published in the airport facilities directory as well as most approach plates. Before you call Clearance Delivery, get the ATIS and tell the controller you have it as well as where you are located on the airport.
Class D
Some Class D airports have a Clearance Delivery frequency (see KADS, Addison, TX), but for the most part, you’ll get your IFR clearance on the Ground frequency. If there is a dedicated Clearance Delivery frequency, the ATIS will specify whether or not to get your clearance on it or on ground control.
Class D towers are only part time towers, usually closing between 7pm and 10pm local time, depending on how busy the airspace is. These airports usually have published Clearance Delivery frequencies to contact either the local approach control or center to pick up an IFR clearance on the ground. They will be published on approach plates and in the A/FD.
Untowered Airports
Class E
There are a number of Class E airports that are Class E all the way down to the surface (see KLFK, Angelina County). At these airports, there will either be a Clearance Delivery frequency or you call on the Center or Approach frequency to get your clearance (at KLFK, you call Center as there is no Clearance Delivery frequency. At Temple, KTPL, there is a published Clearance Delivery frequency which you would be talking to Grey Approach).
Class G
There are two ways to pick up an IFR clearance at a Class G airport, one typically a little safer than the other.
The first option is to take off and maintain VFR while calling Center or Approach control. They will give you your clearance making you IFR and allowing you to enter the clouds. This option can be unsafe depending on the terrain surrounding the airport and how low the ceiling is. If the ceiling is overcast at 1,000, you can legally remain VFR in Class G airspace at 500 AGL, but that isn’t the safest option and you might not be able to raise ATC at that altitude.
The second, and safer option, is to call on the phone. Flight Service has a nationwide Clearance Delivery phone number that every pilot should have saved in their contacts (888-766-8267). Typically, you want to wait to call them until after you are done with your runup because they only give you a five or ten minute window to get off the ground. With bluetooth equipped headsets, this usually isn’t a problem.
Be prepared when calling Clearance Delivery on the phone to wait a few minutes. Us pilots aren’t good at being patient sometimes, but the FSS has to call Center on the phone to get your clearance and release and this can take a few minutes. Be prepared for that going in and just be patient. Remember, this is the safer option!
There are a handful of Class G airports around the US that have a GCO, a Ground Communications Outlet. With a GCO, you tune up the frequency, then click the mic 4 times to talk to ATC or 6 times to talk to FSS. Each mic click must be at least one second, so if you click the mic too quickly, it won’t work.
At certain airports that are underlying an approach control’s airspace, you can actually call the TRACON directly and get your clearance from them (5C1, the Boerne Stage Airport, for example. San Antonio approach is the controlling agency and you can call them directly to pick up your clearance). It’s a good practice to get the TRACON phone number and save that in your contacts as well.
Figuring out the pattern altitude at an airport should be pretty simple, right? But, in this day of helpful technology, most pilots actually get it wrong. How can you always get it right? Well, it just takes about an extra 15 seconds. Here’s how.
John Wayne Airport Traffic Patterns
As outlined in the Aeronautical Information Manual, section 4-3-3, “traffic pattern altitudes for propeller-driven aircraft generally extend from 600 feet to as high as 1,500 feet above the ground.” Further, in the Pilot’s Handbook of Aeronautical Knowledge on page 13-10, it states: “1,000 AGL is recommended pattern altitude unless established otherwise.”
Okay, so for piston driver’s, we’ve got it narrowed down to 1,000 AGL (Above Ground Level for those who don’t like acronyms). But wait! There’s that very important phrase at the end of the last quote: “unless established otherwise.” That means not all airports have traffic pattern altitudes of 1,000 AGL, or else they wouldn’t put that line in there!
How do you find out what the TPA (Traffic Pattern Altitude) is for a certain airport if it’s not 1,000 AGL? Great question! Your first guess is probably to look on Foreflight. Though this is a good start, it is not the full answer.
Let’s use an example. Look up KAQO, the Llano Airport on Foreflight. At the top of the page, the airport elevation is stated as 1,101′ MSL and the pattern altitude is stated as 1,902′ MSL. From what we just learned, 1,902′ MSL is not 1,000 AGL, so is 1,902′ MSL otherwise established?
On the Airports page with KAQO pulled up, tap the A/FD tab, second to last on the left. Scroll down to Llano Muni. Read the whole entry. Does it state in the entry that pattern altitude is different than 1,000 AGL? It sure doesn’t. So, because it is not otherwise established, pattern altitude at KAQO is 2,102′ MSL not 1,902′ MSL.
Where did Foreflight get that? I have no idea. Too often, though, pilots look at the Foreflight pattern altitude and don’t actually check the Airport Facilities Directory (A/FD). Then, they get the pattern altitude wrong.
What does it look like when pattern altitude is otherwise established? Look up KSGR, Sugar Land Regional, on your Foreflight app. Foreflight states the elevation as 82′ MSL and the Pattern Altitude as 1,000′ MSL. Is this correct? Well, tap that A/FD button again and let’s find out.
On the second line of the A/FD entry, it says TPA-See Remarks. Down in the remarks section, we find the following:
TPA-1000 (918) single engine piston acft, TPA-1500 (1418) for twin and turbojet acft, TPA-500 (418) for helicopters within 2NM.
Foreflight got it right this time for single engine pistons, but if you are in a twin, the pattern altitude is different. What’s the lesson here? Always check the A/FD and don’t always go by what Foreflight says. The A/FD is always right and usually has a little more detail to help set you straight.
One last thing. Both the AIM and the Pilot’s Handbook of Aeronautical Knowledge, when talking about pattern altitude, state, “When operating at an airport, traffic pattern altitudes should be maintained unless otherwise required by the applicable distance from cloud criteria in…section 91.155.” 91.155 defines basic VFR weather minimums. So, to fully interpret what the AIM is saying, we have to take into account the type of airspace we are in to determine if we can safely and legally operate at pattern altitude at a particular airport.
For example, let’s say we are at KCVB, the Castroville Airport. Pattern altitude there is 1,602 feet, which is 829 AGL. CVB is Class G airspace up to 700 AGL, then Class E above that. Let’s say there is a 700 AGL broken cloud layer. Pattern altitude is 829 AGL, so you won’t be able to get up that high with a broken ceiling. What altitude can you do pattern work at to stay legal?
Class G VFR weather minimums during the day below 1,200 AGL is 1 SM visibility and clear of clouds. So, legally, you could fly at 699 AGL (which at CVB would be 1,472 MSL) while in the pattern and be legal. Safe? Maybe, but probably not if you are skimming the base of the clouds. Is 1300 MSL a safer pattern altitude in this example? Well, that is 527 AGL, so probably not, since towers tend to stick up that high sometimes.
Let’s go back to KSGR and put a 1,000 AGL overcast ceiling there. SGR is Class D airspace and we already determined pattern altitude there was 1,000 MSL for piston singles. VFR visibility and cloud clearance requirements in Class D airspace are 1,000 feet above clouds, 500 feet below clouds, and 2,000 feet horizontally from the clouds with 3 SM visibility. In order to stay 500 feet below the clouds, you would be flying a 582 MSL pattern. Safe? Probably not, though it is legal.
To summarize, don’t take Foreflight’s word for pattern altitude. Cross reference the A/FD (it only takes 15 seconds at the most) to verify. If it’s cloudy, it’s really best to stay on the ground, but if you want to find out your legal pattern altitude with a cloud deck, cross reference 91.155. I don’t recommend flying below pattern altitude because it is there for a reason.
