Archive for April, 2011
His conversation with air traffic control is downright bizarre, and the controller seemed to do everything he could to discourage the landing. The pilot was very careful not to declare an emergency.
The FAA is still looking into the incident. If you were the investigator assigned to this matter, what would you do?
First, I listened to normal ATIS broadcasts, intercom communications, and ATC clearances with a Bose headset (that alone was a step up from the $150 headsets I’ve been using for the past 10 years). Then, I listened to the same communications, with the same headset, in 3D. I was shocked. Each communication was clearer and easier to process.
With this technology, the audio comes from different directions (based on which comm it is streaming through), as if you were listening to your passengers, ATC, and the ATIS carry on a conversation in a room with you. ATC clearances came in through my right earpiece, while the ATIS broadcast came in through the left. Although both were broadcasting at the same time, the ATC clearance came through clearer. Initially, I thought the volume was louder for ATC than ATIS, but the Garmin representative explained that they were the same volume–my brain had picked which transmission to prioritize. In that case, ATC won. Without the 3D audio, however, I just heard a jumble of ATC and ATIS, making it difficult to distinguish the clearance.
Now for the intercom communication. When talking to your pilot or co-pilot, you’ll hear him or her clearly from the respective side. For example, if I were flying with my flight instructor in the right seat, I’d hear him predominately through my right ear. And if I had passengers in the back, their conversation would sound as if it were coming from behind me…just as it would if I weren’t hearing headsets.
The directional audio makes it much easier to process information by eliminating the strain of trying to separate multiple transmissions that are given equal weight.
They say a picture is worth a thousand words, but in this case a short audio clip is worth a thousand words. Check out the sample Garmin has posted on its website. Listen to the 2D before the 3D. Make sure you are listening through earphones or have two speakers hooked to your computer in order to get the experience.
Meteorologist Theodore Fujita developed his Fujita scale in the 1970s, then refined it again in the 1990s to the current “EF” scale. The “EF” stands for ‘enhanced Fujita,” and it’s a damage scale. An EF-1 tornado has surface winds between 86 and 110 mph. The NWS adopted the EF scale, and assigned the following types of damage to EF-1 tornados: Moderate damage. Small barns and outbuildings damaged. Rooves ripped, mobile homes overturned, loss of exterior doors, windows and other glass broken.” All of that happened at Lakeland yesterday, plus a lot of downed trees and power lines.
The EF scale damage descriptors might also be expanded to include, “Tied-down airplanes may be flipped and destroyed, tents crushed, Porta-potties overturned, and signs uprooted.”
Though an EF-1 may sound like it’s low on the totem pole of tornado damage (and it is–the scale goes up to 28), its damage is awe-inspiring. It’s not something I want to ever live through again!