Vintage Instructor THE
BY DOUG STEWART
Sometimes you’ve got to push . . . “Switch off?” I called out. “Switch off!” was his reply. “Brakes on?” “Brakes on!” “Okay, give it a couple of shots of prime, and I’ll pull it through four blades.” I was standing at the front end of a 1943 Aeronca L-3 that a client of mine had recently purchased. His insurance mandated that he get 10 hours of training in the airplane prior to soloing it, and the Federal Aviation Administration mandated that he receive a tailwheel endorsement prior to acting as the pilot in command of the airplane. This was to be our first flight. As I pulled through the prop of the 75-hp Continental engine, I made a mental note of the fact that the propeller seemed to give less resistance than I had expected. I rationalized that the engine was cold and of low horsepower, and that I wasn’t pulling through a big Pratt & Whitney radial. Nonetheless… “Okay, switch on?” I asked. “Switch on!” he confirmed. “Brakes set?” “Brakes set!” (Notice that I, the person providing the motive power to the propeller, was calling the commands, and not the other way around, as I have sometimes seen.) With that, I pulled the propeller, and the engine quickly fired to life, murmuring in a smooth idle. I walked around to the side of the cockpit and groaned a bit as I managed to pull my aging bones up into
30 DECEMBER 2008
the back seat of this World War II observation plane. Once I secured my seat belt, and put on the headset that was connected to a portable intercom (at least I wouldn’t have to be shouting at the top of my lungs, and I have long ago given up the concept of smacking my client upside the head with a rolled-up sectional), I told my client we could start to taxi to the end of the runway. The airport we were operating out of is a small, privately owned/ public use airport, with a 2,300-foot runway. The runway is composed mostly of grass, but the underlying surface is shale and gravel. Although fairly wide at the north and south ends, it narrows to about 45 feet in the north third of the runway as it dips down into a hollow that is about 25 feet lower than the rest of the runway. The winds that day indicated we would need to take off to the south, so we taxied to the north end of the field. As we came up out of the hollow it took quite a bit of power to keep the airplane moving up the gradient to the north threshold. I was starting to wonder a little about the power of that engine hanging up in the front of the airplane. Was it really making all the horsepower advertised on the dataplate? The engine run-up seemed normal, with rpm drops of 75-100 rpm on each separate magneto, and there was no evidence of any carb ice when we applied carb heat. My client then went through the short and simple before-takeoff checks,
moving in a nice flow from the right side of the cockpit to the left. Everything was set. Prior to walking out to the airplane my client and I had discussed the lesson plan for the day. In the previous lesson we had spent a fair amount of time taxiing the airplane, including several high-speed taxis to gain the sight picture and feel of when to pick the tail up, and then as we cut the power, how to compensate for the loss of flight control effectiveness as we decelerated, still keeping everything headed straight down the runway. In this lesson we would be taking to the air, and thus all the important flight speeds had been briefed. Rotation would be at 45 mph indicated airspeed (IAS). With some trees blocking our path another thousand feet beyond the end of the runway, we would then look for 60 mph IAS as our best climb speed. We briefed what we would do in the case of an engine failure, dependent upon when and where it might fail. We briefed the best glide speed and final approach speed. It was great for someone like myself, who suffers from CRM (can’t remember much), that those speeds were all the same…60 IAS. So now, after checking for any other traffic, we taxied out to the center of the runway, and he applied full takeoff power. It would be an outright lie to say that I was pushed into the back of the seat, but aided by the descent into the hollow, our acceleration was accept-