Estes Prowler

Finished this rocket in May but hadn’t flown it until Sunday for a variety of reasons. An Estes Prowler, an OOP kit very similar to the Majestic, a mid-power E2X kit.

Estes Prowler on the launch pad at CENJARS.

I did some minor tweaks on this to improve the recovery line, add a rail guide in addition to the 3/16in lugs, etc.. It came with a nice looking pink body tube. Sadly one of the launch lugs slipped while setting and I didn’t notice. So I had to heat gun it off, sand paper the tube, etc etc, and wound up having to repaint the whole thing to deal with the blemish.

The big thing with the Majestic, and I assume this as well, is that you have to do something to keep the parachute, recovery line, etc. from falling lower in the rocket at ignition. It happens easily and the rocket becomes completely unstable. At the moment it’s one of my biggest criticisms of Estes kits: They’re selling the Majestic (and similar) as E2X kits for relative beginners, but they have a serious design flaw that’s actually kind of subtle to diagnose.

In any event, here’s a flight on a windy day on an E16-6, to an estimated 750–800ft, with the chute held to 200ft.

And video of takeoff from Brett’s action cam by the launchpad.

Central Park Model Yachting

Recently we made a quick trip to New York City and among other activities walked through Central Park, yielding a clear highlight of the trip: RC sailboat racing!

International One-Meter (IOM) class boats racing (the hulls are one meter long).

I’ve read about this scene before, in particular I believe EB White’s Stuart Little features it. and stumbling upon some action was really cool. Central Park itself has long maintained Kerb’s Boathouse for model sailboating in the adjacent large pond. No powered remote control vehicles are allowed in the park, so it’s all wind power all the time. The public can rent space to store their models in the boathouse and several organizations use it as home base.

One corner inside the boathouse.

One such organization is Rocking the Boat, which runs youth programs building & sailing full size boats out of the Bronx. They recently branched out and took on the running of an RC sailboat rental concession at Kerb’s Boathouse and have started youth programs hosted there. Another is the Central Park Model Yacht Club, which coordinates events including the low key races every Saturday which we happened to see. As you’d expect, the racing amounts to a gaggle of middle age and elderly gentlemen hurriedly walking up and down the length of the pond while half-seriously cursing their boats, the wind, and each other in NYC accents. It was amazing.

Examining the sail controls on a misbehaving boat.

Automated countdown and buzzer for starting races.

Sadly, although club members had several boats for sale in the boathouse, we were going from there to a showing of The Lion King and I thought the people seated behind me might object if I sat there holding a ~5.5ft tall sailboat…

Come sail away, come sail away, come sail away with me!

The Three Body Problem

The Three Body Problem. Liu. High concept science fiction about the search for extraterrestrial intelligence and the consequences thereof.

Though massively hyped, this is a fairly bland novel. The first quarter or first third or so are interesting. From an American perspective it’s refreshing to have a story set in recent Chinese history, especially in the countryside, rather than modern-to-near-future urban cyberpunk, triads, and/or espionage. There is also a lot of nuance in that aspect, as the book is clearly critical of the Cultural Revolution and the Communist Party but also endorses basic tenets we would consider communist and even authoritarian. These sections of the book also have a number of potentially very interesting characters and relationships between them.

The later sections of the book though mostly shunt all that aside in favor of long expository monologues expounding on a combination of vaguely scientific ideas and the history of an alien race. Unfortunately we’re not given much reason to care about that race and the science-y mumbo jumbo is less than captivating. In some aspects the book reminds me of Andy Weir’s novels to date—The Martian, Project Hail Mary, Artemis—which range in that order from fine to meh to atrociously bad but all “feature” way too much made up technical greebling and science-y-ness. But even more so, The Three Body Problem feels like reading “golden age” science fiction from the ’40s & ’50s (roughly speaking), most of which is… not good. That literature similarly expends great time conducting lessons on various science concepts that are then stretched too far in application, almost always at the expense of character development. A lot of it also hinges on singular premises that ultimately just come across as silly. Specifically, The Three Body Problem feels very much like a Chinese version of Arthur C Clarke’s Childhood’s End, an ostensibly classic 1953 novel also about first contact that also has some interesting ideas but reads pretty flat and to my taste is overwhelmed by a mostly unnecessary but very goofy plot conceit.

All in all, I didn’t hate reading The Three Body Problem, but it’s definitely not on my recommended list and I’m not particularly motivated for the rest of the trilogy.

— Additional —

The Black Forest. Liu. Followup to The Three Body Problem that is a pretty good book almost despite itself. As with the prior book there is a lot of exposition and a number of digressions to include small science-y factoids. There are also several conceits you just have to accept, e.g., people collapsing like anime characters when presented with their foil. Finally, there’s a substantial “time is a flat circle” kind of plot element going on but unexplained. But I do like several threads and characters, though many of them don’t hardly interact at all. The Black Forest concept and denouement of the proximate threat to humanity is very good. The Wallfacer concept and the struggle to fight such an asymmetric conflict is interesting. Luo Ji’s story arc seems like it’s going deep into left field, but it comes back nicely in the end. Zhang Beihai comes across as a militarized Spock who can’t quite follow through on his cold logic and has a low key great ending. All in all, it still reads like “Golden Age” sci-fi, but compared to the prior book it’s arguably elevated to a higher tier of that class. The Black Forest doesn’t really have the humanity, texture, and uniqueness of the historical opening sections of The Three Body Problem. But the Foundation-style “grand trajectory of humanity” tale in The Black Forest is much better.

— Additional Additional —

Death’s End. Liu. Finale of the Three Body Problem trilogy. This novel doubles or maybe quadruples down on every negative I could lob at The Three Body Problem, making The Black Forest the definite high point of the series. Death’s End is an extremely high concept galactic history from the perspective of humans subsequent to the events of the prior two books. At one point there’s a time skip between chapters of eighteen million years… It is written and reads like a tepid popular history of a fictional nation. Entire chapters are purely expository walkthroughs of political and economic systems and history. What little characterization exists doesn’t add depth of interest. In addition, the men are all steely-eyed warriors of philosophy, science, and war, while the women are flighty and weak hangers-on. There’s a lot of narratorial speechifying about the feminization of society and the lack of collectivism, both of which lead directly to multiple catastrophic failures of humanity. Meanwhile, despite these books’ reputation as “hard sci-fi,” the physics weaved throughout the story has progressed to the point of absurd handwavium. Long story short, I persevered through the book to finish the trilogy and not be subject to (imaginary) rebuttals of not reading the whole series or just not getting it when I criticize The Three Body Problem. Once more the purpose of my life is to serve as a warning to others.