Remembering Challenger

35 years ago, I was sitting in my 5th grade classroom watching along with my teachers and fellow students as Christa McAuliffe and the other six members of STS-51-L roared into the air on a cold morning in January, 1986. I was excited to be able to see a launch on TV with my classmates. Little did I know that I was a little over a minute away from witnessing the first of 2 tragic moments in the history of the Space Shuttle program.

STS-51-L Mission Logo
Flight crew of the Space Shuttle Challenger, STS-51-L

I grew up in northern Florida and was always interested in the space program, even at a very early age. My parents would often take me to the library where I would invariably pick out books on rockets and airplanes. I remember reading about the Apollo Program and the early history of NASA and how it captured my imagination. However, as a child of the mid 70’s, the new Space Shuttle program was what I remember getting to see. Even in north Florida, on a clear day I could see the Space Shuttle rising into the sky from my back yard. (though I only remember seeing this once) Shuttle launches had been a regular part of my childhood growing up and they were one of my favorite things to see.

A while back, I noticed a documentary appeared on Netflix titled “Challenger: The Final Flight.” I was interested, but initially resisted the urge to watch it with mixed feelings. After all, I had been there. The images had been seared into my 11 year old brain along with the knowledge of the investigations that came after. I knew what happened and why, and I wasn’t sure I wanted to re-live it. I finally ended up watching it and while the experience was fairly emotional, (particularly the last 2 parts) it was worth it.

The morning of January, 28th 1986, in the last class before lunch, my teacher wheeled out a media cart with a TV for us to watch the launch. We all got quiet as the countdown proceeded. “T-minus 9, 8, 7, 6… we have main engine start… 4, 3, 2, 1 and lift off! Lift off of the 25th Space Shuttle mission and it has cleared the tower.” Challenger rose above the tower as it had before, rolled and pitched over into it’s launch trajectory. Everything looked fine until those final words just a little over a minute into the flight, “Challenger, go with throttle up.”… “Rodger, go throttle up.”

I remember people being confused, perhaps thinking that this was the solid boosters staging, but I knew better. The moment I heard the crackle over the radio and saw the fireball and expansion of the contrail, I knew exactly what had happened. Challenger was gone. Even now as I write this over 35 years later, it’s difficult to hold back my emotions. We were all expecting to see this beautiful young teacher rocket into space, but in an instant my astronaut heroes and their spacecraft disintegrated in front of my eyes.

challenger explosion
Moments after throttle-up, Challenger’s main fuel tank explodes

The documentary tries to tell the whole story, giving background on the engineers at Morton Thiokol, the diversification of the astronaut corps, and the selection of the candidates for the teacher in space mission. It’s a powerful and moving story including interviews with most of the major players and family members of the 7 astronauts who died. Overall, I’m glad I watched this as it’s a reminder that overconfidence and pressure to meet deadlines can be a dangerous combination. If you haven’t seen it, I’d highly recommend it, but bring a box of tissues.

Why I won’t buy a Tesla

Elon Musk is a brilliant entrepreneur and futurist. He has singlehandedly revived the EV market and pushed the technology farther than anyone thought possible. Tesla’s cars are arguably the best EVs on the market. So why wouldn’t I want to buy one? It has to do with the right to repair and also who really owns the car.

When you buy a car from any of the usual manufacturers, you own that product. If I purchase a BMW and decide I want to change my own brakes or install a new battery, I can do that. The manufacturer can’t even refuse to warranty other parts of the car due to these changes. The Magnuson-Moss Warranty Act states that a dealer must prove that equipment caused the need for repairs before it can deny warranty coverage.

Right to repair got a boost from Massachusetts in 2012 with a new law that required auto manufacturers to share their diagnostic codes and information. This led to an agreement between the automakers in 2014 that is now effective across all 50 states and is in part responsible for the range of aftermarket diagnostic equipment that is now readily available to consumers.

Sure, you say… so what does this have to do with Tesla? One of the main differences in a Tesla EV and other cars on the market is the tight integration Tesla has between their hardware and the software that drives it. Like Apple and the iPhone, Tesla controls every part of their product. Each Tesla is in constant contact with the company via wireless communication. Tesla vehicles send diagnostic data back to Tesla that they can then use to make improvements. This enables some amazing benefits such as over-the-air updates that add features or improve performance. However, this level of control also has a downside. What Tesla gives it can also take away, and there’s absolutely nothing you can do about it. (If you want a good example, check out the Rich Rebuilds channel on YouTube)

Recently Tesla reversed an earlier policy where they would allow recertified Tesla’s that had been damaged, but later repaired to either retain or get back their ability to supercharge. (Tesla’s high current fast DC charging ability that is one of it’s main selling points) Now even cars that owners paid thousands of dollars to certify are unable to be used effectively on anything other than short commutes.

It’s not just salvaged Teslas that are affected though. Because many of the features of a Tesla vehicle are little more than software, Tesla licenses them to specific owners and can take them away when the vehicle is sold and then charge license fees to the new owner to enable these features again. This begs the question, who really owns a Tesla? Most owners would say that they do, but with this sort of complete control over the vehicle, is that really true? Is it ok for Tesla to remove essential features like fast charging capabilities over the air without warning or recourse? I don’t think so. As long as this is their policy I won’t be purchasing any of their products, and I don’t think you should either.

Bimmer Resurrection!

It’s been 4 years since I made a truly new post on this blog, so quick BMW update:

I’ve been daily driving the BMW now for about the last year and change on and off. It’s been a rocky road getting the old girl back in good shape, but she’s finally to the point of being (mostly) reliable transportation again.  It was a long time coming though.  Back in early 2016 when she blew a head gasket and my attempts to repair it failed, I mothballed the car in our garage.  There she sat for almost 3 years until finally in late 2018 I took a chance on a junkyard engine from a newer model and prepared to breath life back into the old E39.  Thankfully my skills were up to the task and over the course of a few weekends I got the engine built back up and installed in the car.  Amazingly it worked flawlessly.  I’ve had several issues since then of course, but most of them (aside from a crazy electrical gremlin) have been regular maintenance.  These days, she’s running better than ever.  Hopefully for a long time to come!  I’ve put together a few random photos from the engine swap to some more recent upgrades and fixes.