In science, failure isn't simply an option, it's the normal state of affairs. Most experiments don't work at first and at second and at third. Instead, you have to make constant adjustments and changes until you get it right. That's typical when you do it in the 1-g environment of the Earth-bound laboratory.
On the Weightless Wonder, you have exactly two chances to get it right. Each experiment flies on two consecutive days with half the team flying on the first day, half on the second. If it's difficult to get an experiment to work the first time when you are on Earth, is there really any chance of getting it right inside an airplane with all of the safety requirements and the fact that you and your equipment are undergoing a constant and changing force as the airplane flies parabolas?
The answer is no...and yes.
NASA's motto is that "Failure is not an option." That's a powerful and critically important perspective when people are involved. So failure is not an option holds true for the pilots of the Weightless Wonder and the NASA personnel supporting us aboard the airplane. No one will get hurt.
Failure is an option for our experiments. Today, we planned to fly the first three experiments. That didn't happen.

The day began with a meeting aboard the aircraft to test the combustion engine to find out if it still leaked. The team bought the proper fitting, a NASA technician modified it so it would mate to the vent line of the airplane and it was time to turn it on. In the photo, three members of the team are on the left, NASA personnel on the right. The team fired up the engine and instantly the call came to turn it off, the smell of propane was obvious. A quick investigation found that the exhaust line was no longer leaking, the new fitting was good, but the intake valve and the engine seals were all leaking. There was no choice, the plane had to take off without this experiment. The forklift came out, the rig was unbolted from the floor of the plane, the hatch opened, and the engine went back into the hangar. I met with Doug (education) and Dom (flight director) and we quickly made a new plan. Ron, the auto tech. teacher would not fly today and work on the engine. Jayatri and Kathleen would fly as scheduled, but be assigned to other experiments. The team met to discuss the new plan and the plane was prepared for takeoff.
Everyone then met for the pre-flight briefing and to take the anti-nausea medicine. You take two pills, the scopolamine for nausea and an upper because scopolamine is a bit of a downer. Here is Aliya ("I'm good"), Kathleen (I'm good but I can't feel my legs"), and Adam (I'm good, I mean really good!) about 15 minutes after swallowing the magic pills.
Along with the three of them, our other flyers included Susan, Pat, Nick, Craig, Tony, Chelule, and Jayatri.
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| Jayatri, Susan, Pat, and Nick getting ready to board. Photo courtesy of John DeLooper. |
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| Boarding the plane. Photo courtesy of John DeLooper. |
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| Photo courtesy of John DeLooper. |
While the plane went out over the Gulf of Mexico to fly 30 microgravity parabolas, 1 lunar, and 1 Martian, I went back to help the Philly team figure out what to do. It was clear that the engine could not fly without major modifications and those could not happen in 24 hours. The question was whether or not there was something else on the engine that could be studied and still be scientifically interesting and also relevant to the students. I suggested that the team study the spark behavior in a varying gravitational field. No fuel, but what happens to the spark in a spark plug at 0g? Or at 1.8 g? Or if it was on the Moon? Or on Mars? (Yes, I know, that's now a plasma physics experiment too!) The team had the camera set up, all they had to do was reposition it so that it could see the spark and convince NASA that this new experiment was safe. That took the rest of the day, but the team worked incredibly hard and the safety inspection was short because everyone was convinced that this new experiment could fly safely tomorrow!
In the middle of all of that, the flyers came back down to Earth though each of them was still floating. First off the plane was Pat, arms raised, soon followed by everyone else. Kathleen was beaming and just hugged me, smiles were everywhere, and the wonder and joy just burst out of people. Everyone that stayed on the ground cheered.
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| Photo courtesy of John DeLooper |
What about the experiments? Of the other two, the oobleck did well and the team got some results. But oobleck leaked out of the chamber and some cleanup and resealing was required. The bubbles, spring, and pendulum all failed. The spring fell off, the bubble chamber floor didn't stay in place, and a camera mount broke. There was no data. A failure? Not at all. Instead, the experiment showed the team every weak point, every problem with moving from a 1-g to a zero-g environment, and they were all fixable. By the end of the day, the team had made the adjustments so the equipment was ready for the second day. Tomorrow, they are confident that the experiment will succeed.
Sometimes, failure is an option and it leads to success.