He’s slow to pick up speed. The off-white hand of the airspeed indicator is creeping up the dial ever so slowly, as if the landing gear were rolling over wet grass, not over smooth asphalt. Huh. The power is good. The Tach reading right where it should be. The roar of the engine steady and strong through the heavy walls of my headset. The runway stripes are zipping toward me, under me, with increasing vigor. The yoke is light in my hand. My senses tell me I’m picking up speed. But the airspeed indicator says I’m only going… thirty-five miles per hour?
Boy, these big, wide runways really mess with your senses. I glace left. There’s a lot of asphalt beyond the wingtip. Santa Fe’s Runway 20 is twice the width of my home base’s widest runway. That’s an extra 75 feet.
Still… Warbler is eating up quite a bit of this wide runway… here comes the north ramp already… and I’m still on the ground. Not that there’s a shortage of runway in front of me, but what’s going on here? Power is good. Engine sounds fine. Still, here we are, more than a thousand feet down the runway and I’m going only 40 miles per hour. How can that be? Think! The plane is light. Quarter tank of fuel in each wing. No cargo… Only me onboard.
Ah, here we go! The nose is finally lifting… But wait. I’m still at 40. He shouldn’t be ready to fly yet. Not in these conditions. There’s hardly any headwind worth mentioning. This is all very strange. Very unusual.
The runway center stripes zip under the cowl with increasing urgency.
Tentatively, I pull back on the yoke and Warbler leaps from the runway, a stone shot from a trebuchet. Holy cow! The wings rock as I pass through an air pocket, I level them and steal a quick glance at the panel. My airspeed is now zero.
The airspeed dial’s off-white needle is pointing straight up, giving me the middle finger.
What. The. Hell… ?
They say it takes five seconds for a pilot to recognize when something has gone terribly wrong in an airplane, and to react to it. I don’t know if that’s true. I didn’t time it. But I can testify that there’s definitely a deer-in-the-headlights moment while the brain deals with the unexpected. Before the body springs into action.
Of course, I hardly sprang into action. Actually, I did nothing. In hindsight, I should have chopped power and dropped back onto the runway. Assuming that I had had enough of it left to safely land and stop. I can’t say whether I did or didn’t, because I never considered it. Instead, I simply flew the plane, which is a legitimate response, and one of the first things you’re taught to do when something goes wrong.
At that moment, while I was processing all the conflicting data around me, the tower called, “Ercoupe 116, turn southwest, proceed on course.”
I think not. Time to end this test flight and get back on the ground. I thumbed the mike button, “Uh… 116 would like to return to the field.”
The response was immediate: “Make right traffic, Runway 20.”
Up to this second, I’ve been flying on auto pilot. Not a fancy mechanical marvel, but the martial arts muscle memory of tasks repeated time and again until the body does what’s needed without the brain wasting a neuron on it. But now it’s sinking in that I have no idea if I’m slow, fast, or just right. It’s a perverted aeronautical version of Goldie Locks and the Three bears.
Of course, in the old days pilots didn’t have airspeed indicators. Planes predate all of our gadgets. What was it my forbearers did to judge speed? Oh yes. They listened to the song of the slipstream across the bracing wires, the iconic “wind in the wires.”
No wires on an Ercoupe.
It suddenly dawns on me that rather than being an annoyance, this is a potentially dangerous situation. Sure, unlike most planes, if they get too slow ‘Coupes don’t stall. Not if they’re rigged right. Of course, Warbler has a brand-new tail. That’s what I’m doing today. I’m conducting a FAR 91.407 (b) post-major maintenance test flight to ensure that his flight characteristics haven’t changed. To ensure that he is rigged right. Still, even perfectly rigged ‘Coupes develop what’s often called “profound” sink rates when they get too slow. Something to be avoided close to the ground like I am.
I’m not scared. Not at all. I’ve got a lot of time in these birds, and a fair bit in this very serial number. But I know I’ve got to think smart. I keep the throttle to the fire wall and hold the nose near the horizon. Screw the climb rate. Screw the pattern altitude. Gentle bank right. Level off. The runway drops behind my twin tails. Now a second turn. Nice and easy.
Should I let the tower know? They already suspect trouble. I told them this was a post-maintenance shakedown when I called for clearance. Should I advise them that I’ve lost my airspeed indicator and have no clue if I’m flying 55 miles an hour or 110? Well, what good would that do? It would seem to them a bigger emergency than it really is for me. For me in this plane.
I’m cleared to land. I’ve stayed high, kept the power up, and held the nose low. I know this makes me fast. Fine. I’ll bleed off the speed when I’ve got asphalt inches below my wheels. Down, down, down I come. The giant, wide runway rises up to greet me. I pull back on the yoke and Warbler skims the runway like a stone skipping over the calm waters of a pond, floating forever as taxiway lights shoot by on either side, then he gently settles to earth, rubber kissing the asphalt, still—according to his airspeed indictor—traveling at zero miles per hour.
What was the issue? Bad airspeed indicator? Pesky partially plugged Pitot? (never underestimate the powers of alliteration!)
The vacuum hose came off the back of the airspeed indictor!!!