OK, it wasn’t really an emergency. And I didn’t really have a heart attack. But we both had a heart-stopping moment, that’s for sure. Here’s the Tale…
As regular readers know, the official Plane Tales airplane has been down for maintenance for a loooooong time. For so long, in fact, that new readers can’t be blamed for wondering if I fly at all. They probably think that I’m just one of those pretenders who puts on an aviator shirt each morning before he hits the tequila. That’s actually true, but I’m also keeping my skills from atrophying, thanks to the kindness of my plane pal Lisa, who lets me fly her Warbler once a week after her solo practice session. Lately, I’ve been working on improving my Lazy-8s.
This week, to save MoGas, we drove to the airport together before dawn. I helped her preflight her plane as the sun rose, then off she went. While Lisa taxied out, I busybodied around the hangar. I changed a light bulb, restocked the fridge with water and the humidor with fresh cigars, and I killed four scorpions. Like hangars everywhere, we have spiders, but being a desert ecosystem, we also have their more primitive cousins. Personally, I have nothing against scorpions, but I’m unwilling to share my sacred aviation space with them.
Warbler’s engine warmed up and the runup done, Lisa made her radio call and pulled out onto the runway. I stepped out of the hangar to watch her takeoff. I heard Warbler’s engine smoothly increase in volume and watched him steadily accelerate down Runway 19. Lisa rotated, leveled off into ground effect for a short time, and then started to climb. About mid-field, his engine suddenly went silent.
So too, did the rest of the world.
No dogs barked. No cars honked. No crickets chirped. Time stood still.
But gravity didn’t.
In dead silence Warbler drifted back down out of the sky and disappeared behind the trees.
Still, silence reigned.
That’s when I had the heart attack. Then, that out of the way, I dashed for the handheld. Did Lisa have enough runway? Or was she down in the Juniper trees off the end of the threshold? Or worse yet, in broken, scattered pieces in the canyon just beyond? Trying not to sound panicky, I made a radio call. “Niner-four-one-one-six, Santa Rosa Unicom.”
“Niner-four-one-one-six, Santa Rosa Unicom, do you read?”
More silence. Whereupon, the handheld, which hadn’t been in its charger, let out a burst of static and died.
Seriously? I bolted for my car, tore out of the hangar side of the airport, shot up Airport Road, blew through the stop sign at U.S. 84, barreled down the highway to the official entrance to SXU, and set a new land speed record getting to the gate at the Terminal. As I frantically punched my ATM code into the gate control, I saw Warbler taxi leisurely by.
Relief flooded over me. Relief, followed by a brief flare of anger. Obviously, his engine was fine. What the hell? If she was going to practice an aborted takeoff—and who does that?—she should have announced it on the radio!
Rules be dammed, once through the gate, I turned on my emergency blinkers and pursued her up the taxiway. She didn’t return to the runup area. Instead, she crossed 19 on Charlie and headed back for the hangars.
OK. So something was wrong. But what could it be? I hung on her six and we crossed the airport as if she were towing me with an invisible rope. Back at the hangar she shut down and I jumped out of the car.
“What happened??” I demanded, climbing up on the wing.
“Didn’t you hear my call?” she asked, perplexed. She had heard the call I made right before my handheld died, and responded. Who knows why I didn’t hear it. She was on the far side of the airport, that’s nearly two miles away, and there’s no straight line of site. Maybe it’s too much to ask of a handheld.
“I lost my airspeed indictor,” she said, pointing at the instrument panel. Apparently, the takeoff had started normally, but as she made her post-lift off scan she was shocked to see her airspeed indicator giving her the middle finger. It read zero. She had no clue how fast or slow she was flying.
Lisa said she remembered the time it happened to me, and decided in a flash that her best option was to get down fast. She chopped the power and put Warbie back on the runway. “It wasn’t the best landing I ever made,” she said, sheepishly.
I think it was the best landing ever.
The information on AirSpeedIndicator Failure is all there.
I was taught this by Monique Agarzarian in1992 The equivalence of
1/2 bar attitude = 10 knots = 200 ft/min = 200 rpm 0r 1″ Hg .
This relationship is crucial in Celestial Navigation ( Celnav ) – the art of navigating without any instruments.
How did the Kontiki raft find Polynesia? Using Celnav!
Why did the Magi ( three wise men ) visit Herod when looking for Baby Jesus?
Because they could fly Celnav but couldn’t find the Airfield!
You should never lose sight of First Principles.
H. David Hughes, Penmaenmawr North Wales UK