Tuesday, September 10, 2013

Pic of the Day: Revell 1:96 Saturn V build, Part 6--Still on the S-IC


Calling this "Part 6," though I haven't been diligent in numbering all the previous Revell Saturn V posts. Sorry. Just go here or click on the "Saturn V" label at the end of the post to see the others.

Still working--very slowly--on the S-IC. I did make some significant progress in recent weeks after almost 2 years of leaving the thing in the box.

I wrote about the big, ugly gaps along the edge of the two wraps forming the O2 and kerosene tanks back in August. Did something about them shortly after that.

First thing was to cut the systems tunnels (the big "pipes" along the sides of the stage). I was going to remove all four of the kit pieces, but realized that the lower halves looked fine. The wrap for the kerosene tank (the lower "half" of the stage) didn't look nearly as bad as the upper one did. I left it alone.

It took some careful work with a straight/chisel X-Acto blade to cut the pins holding the two upper halves. The stage is pretty big and bulky and I didn't want to cut into the wraps, but everything went smoothly.

Once I had the O2 tank wrap exposed, I got to work cutting the overlapping end away. This amounts to a 1/4"-wide strip, as seen above. Then I ran some liquid model cement under the new edge of the wrap and held it with my fingers until it set, working a little at a time. There's still an overlap, but at least it will be covered by the upper half of the systems tunnel when it's glued on.

Here, the upper ends of both systems tunnels have been glued and clamped. No more gap at the midpoint.

There's still a gap under one of the tunnels along the length of the kerosene tank wrap. I'm filling this in with gap-filling "Super Glue" a layer at a time.

I've yet to glue up the second and third stages, but I'll be using the lessons from this one to do them both right the first time.

Monday, September 2, 2013

Pic of the Day: A Room Full of Saturn V F-1 Rocket Engines

It never fails to amaze me how big the Rocketdyne F-1 is, or how complex they are. Here we've got several in various stages of construction:
--a pair of thrust chambers to the right waiting for their plumbing followed by several more that have been plumbed. It looks like the last one in line has a red shipping cover like the last one on the left.

--the first on the left is getting something welded (pretty neat that the guy's head is mostly clear, but his welding mask is blurred as if he was shot in the act of flipping it). From the looks of some of the other engines, I think he's welding those rectangular tabs onto the "hat bands." These have threaded studs on them for later attachment of insulation blankets to protect the engines from each others' exhaust plumes during launch and flight.

--the last on the left looks like it's being shipped out; it's on a cart and has a shipping cover, but I wonder where the interface panel on top is?

If you zoom in on the closer ones, you can see the tubing that forms the bell-shaped thrust chamber. There are 178 of the larger ("primary") tubes forming the top end and 356 smaller ("secondary") tubes forming the lower end, all brazed together and reinforced by "hat bands". Each primary is brazed to a pair of secondaries. Kerosene fuel is directed to the "down" primaries and their associated secondaries and flows all the way to the bottom, collecting heat as it goes. The hot fuel is redirected upward through the "up" tubes and into the engine injectors to be burned. This "regenerative cooling" keeps the thrust chamber from melting.

There's an extensive tech writeup on the thrust chambers' construction here, at Heroic Relics.

Each one of these monsters burned my car's weight in kerosene and liquid oxygen every SECOND. Just one engine put out some 1.5 million pounds of thrust--more than 1-1/2 times the total thrust of all five of the dinky J-2 engines on the Saturn V's second stage.

Some trivia:
Weight 18,500 pounds dry
Height 19 feet
Diameter 12.3 feet
98 production engines
82 development engines
7 serialized mockups
1 shop-floor engineering model
65 engines flown on 13 Saturn V missions
Most of the R&D engines were destroyed in testing
37 engines remain as museum displays or whatever; MSFC disassembled at least one F-1 in 2011 to study for possible restart of F-1 builds (or derivative engines) for the new Space Launch System.

--

As a tie-in for the Revell 1:96 Saturn V project, the kit's engines have some sketchy outside detail, but nothing inside the bells. Granted, you're not really expected to pick the model up to look in the engines, since it's supposed to be displayed standing vertically. The engines aren't correct, anyway, since they're covered in insulation blankets before the rocket's rolled out to the launch pad (good picture of the blanket here, at Up-Ship's Unwanted Blog. RealSpace Models sells a set of properly blanketed F-1's for about $30.

I'm not planning on doing any superdetailing on my Saturn at the moment. I'll be content with cleaning up the existing engines and using different shades of silver to make them look...well, better than this:

Lazy astronaut dude wouldn't stand up. Had to discipline him.

Labor Day repost: I Made the 1% Rich


Labor Day is a good time for a repost from October of 2011, in the midst of the Occupy! days.

According to that pizza-making idiot who wants to be president next year, it's my fault I'm not an entitled elitist rich raging asshole like him.

But actually, it's because of minimum-wage workers like me that he's an entitled elitist rich raging asshole. He didn't get there on his own, no matter what he wants you to believe.

No. His millions came because of waitresses and kitchen staff in his Godfather's restaurants, people who worked for whatever the company could get away with paying. His money came from regular people like me busting their asses for 40 hours a week, or maybe working more than one job.

I knew people like that in my last job, as a delivery driver for one of the national auto parts chains. I hired on in early 2007, working full time and getting a little more than $7 an hour. Because it was February, once my 90 day probation was done, I still couldn't get into the health plan, since enrollment only happened in January.

But their plan was utter crap; the one I could afford wouldn't cover much of anything. The one I needed was too expensive. I did without.

No raises for ANYbody. Most of the other drivers and counter staff who'd been there as long or longer than me hadn't gotten a raise in years. Every time someone brought it up with management, they'd get runaround, or told to talk to the district manager, who would just give more runaround and excuses.

But the store managers got their bonuses. The DM got his bonus. His boss got his bonus, and so on. Us non-management types got a share in the "store bonus," which was based on overall sales for that store. If your sales are down, you don't get the extra few bucks.

All the while, the DM was screaming that payroll had to be cut, no new hires, no overtime for anyone. This meant that everyone but the store managers got cut back to 30 hours or less and the stores were running on skeleton crews. Customers would complain--both walk-in and commercial--because there weren't enough people to handle the workload. There were only 4 people in my store in the morning: two drivers, one at the Commercial desk (selling parts to local repair shops), and the store manager running the front, alone, until the afternoon guy came in. This freed the manager to go do paperwork, make the bank deposit, and grab lunch. The Commercial side closed down at 5 pm, the store manager left, and the evening guy came in, leaving two people to run the store to close.

And so both walk-in and commercial customers would go to the competition, because the store managers couldn't do anything about it--can't hire anyone, can't bring extra people in to help--and so the DM would scream about getting sales up.

We two drivers did an awful lot to help--checking in stock, putting it on the shelves, helping customers, re-stocking, putting up displays, answering phones, cleaning, anything and everything. I knew the system well enough to do parts lookups and run a register, run the test equipment (batteries, starters, alternators, ignition modules) and brake lathe, maintained the delivery trucks, maintained store equipment (I rigged up a drain for one of the air conditioners when its pipes got clogged up, re-stocked half the hard parts when the part numbers changed or new stuff came in), and other stuff that a "delivery driver" didn't need to do. This is assuming I wasn't out on a run, where I interacted with the customers, listened to their complaints about how long it was taking to get their parts, told them about the company's cutbacks, and asked them to call Corporate and give them an earful.

Basically--and this isn't an exaggeration--I did everything. Most of us in that one store could handle someone else's job and chip in, because we HAD to. Most of us were making about the same, without raises, with our hours cut, and we heard the same bullshit from Corporate--"More sales! Less payroll!"

We got a new DM in January 2010, the third one since I got hired. This asshole went on vacation in February, but not before showing everyone a sales brochure for his $50,000 boat. Nice.

He started shuffling people around. I got moved to the hub store, which warehoused more parts than the others. I was back on a 40-hour week, which was good, and all I had to do was make 8 circuits a day from the hub to two other stores and back. During one stop, I learned that the Company had posted record profits for 2009, $300 million. The Company guys simply gushed about it on the employee indoctrination information website. We were expected to gush, as well, because we're all one big happy family!

Record profits--but at the cost of cutting payroll hours, running stores with minimal staff, running off customers who weren't getting good service, freezing any raises...basically fucking us over for their big profits.

It was people like me who made that $300 million for the Company, people like me who made those sales and helped those customers, people like me who busted our asses so the Company assholes could enjoy their bonuses and record profits while we decided whether to pay the electric bill, the phone bill, or insurance this pay period.

Car broke down? Crap...got to juggle the bills around. Maybe one of the shops'll cut me a deal. At least I get a discount on parts.

Lights got cut off? They want HOW MUCH to turn them back on? Well shit, there goes that paycheck. Guess we're hitting Dollar General for mac & cheese, ramen noodles, and tuna sandwiches for the next two weeks.

But did you SEE the District Manager's new $50,000 boat?! It's got wells for keeping bait, it's got a cooler under this seat, a stereo...everything an entitled asshole could want! Maybe if we're productive enough, he'll let us buy some of the fish he caught on vacation while we were keeping his stores alive for him and earning him his next bonus!

Since the Aorta Fairy visited me last year, things have actually gotten worse for my former coworkers. No raises, payroll cut ever further, and the Company's entitled elites making ever more money.

No, we don't owe the fuckers any thanks for allowing us to work for them and bask in their light. They owe us for making them rich. They owe us better wages, better working conditions, some fucking respect for all the work we do to keep their companies going. Without us, their companies die and the money stops flowing. Without us, their customers go somewhere else.

They owe us the courtesy of keeping American jobs in this country, instead of sending them to places where people will work for much less than we will.

Fuck you, Herman Cain.

Tuesday, August 27, 2013

Pic of the Day: NASA's badass Saturn V S-IC

This is a time-lapse shot of one of the Saturn V first stages being put together at the Michoud Assembly Facility just outside of New Orleans. I found it at Heroicrelics. He's got a much larger scan of it there.

Boeing's full-scale item has much better detail than my Revell 1/96 kit...


...but then theirs cost a lot more and was made of stronger stuff.

I haven't done anything with mine since December of 2011, when I scribbled my last review of the kit. In the past few weeks, I pulled the model out, looked it over and decided that I can work with it.

I'm still not thrilled with Revell's design decisions, where each of the three stages are made of solid styrene end-caps joined by rolled-up styrene sheets. There's an ugly, very visible overlap, especially on the upper half (click on the picture and look along the left side). I didn't use enough clothespins to clamp the thing together.

The other big issue is that the "systems tunnel" (the long pipelike structure on the left, used to clamp the rolled-up sheets into a cylinder) is in two pieces, which don't meet in the middle. There's another such tunnel 180 degrees around on the stage. At this scale, that's a one-foot gap in each of them.

Time for some surgery. I'm going to cut both systems tunnels off, glue them up separately, and re-install them after trimming the excess sheeting off. Hopefully the sheets don't just tear themselves loose when the pipes are removed.

This should be a lot simpler than the approach I was going to use when I first saw how jacked up the thing was. I was going to throw some plastic filler in the gaps and try to sand things smooth.

I'm playing it smarter with the remaining two stages. I'm going to roll the sheet sections up and put them into hot water so they'll stay rolled, then glue them up a little at a time to their end-caps and trim off any overlap. Since each stage has at least one systems tunnel intended to clamp things together, I'll arrange the sheet so that the tunnel covers the seams.

Pre-repair pics of the stage are here.

Monday, August 19, 2013

In Which I Inconvenience an A-hole...

I was on the end of some medical errands (doctor visit, taking care of some billing issues) this afternoon. Stopped in at a store for lunch. When I came back out to the car...it wouldn't start.

This is the second time in two weeks that I've taken the X-11 out for more than a short run, only to be unable to start it. Fortunately, the first time was at the same auto parts joint where I bought the (still-new) battery. The guy there popped it out, charged and tested it, and after almost an hour I was back on the road.

This time...convenience store. All my tools are in the Tracker, 4 miles away. I let the battery "rest" between tries, turned everything off, waited a few minutes, tried again. No good. Then I tried letting it roll back on the sloped parking lot and popping the clutch. No good--and now I was stuck in the middle of the lot. No way I was going to try pushing back uphill, so I cut the wheel hard-left and started huffing and puffing, pushing the car toward the side lot.

I was obviously having trouble; one nice guy walked helpfully past me, hopped into his Mustang, and considerately moved it out of the way, then out into traffic.

Then there was Mr. Asshole, who had pulled in next to me before I tried popping the clutch. Mr. Asshole came out of the store as I wrestled the steering wheel. He got in his truck and started yelling at me for being in his way (I didn't see or hear it--I was too busy--but one of my helpers told me about his tantrum).

If I hadn't been busy being the only horse moving the wagon, I'd have gotten my camera out to take pictures of his truck to share with the Internet, since the Internet likes assholes. Just ask George Tierny of Greenville, SC. But I was busy.

A nice lady came running over and helped me push, then a guy who wasn't Mr. Asshole joined us. Mr. Asshole kept ranting manfully in his truck, safe from physical effort, and as soon as we inconsiderate car-pushers were clear he backed out and drove away. I was still too busy to whip out a camera, but I'm pretty sure he's a Republican. Fits the profile, these days.

We got the car around to the side of the building and I thanked my helpers and sat there for a few minutes. After maybe half an hour of sitting, I got the engine running. Ran like crap, rough and sluggish, and didn't get much better the entire way home. Hope I didn't inconvenience Mr. Asshole in some way, having once already ruined his day.

"Scumbags" tag's for him--and Johnny Cash has a message, too (I think he's saying, "Thanks for your help."):

Sunday, August 18, 2013

Pic of the Day: Grampa Solo motivationals, 2

The first batch were the easiest. I'm running out of ideas.



("Air Force One" joke. :p~~~   )

San Francisco: Morrison Planetarium at the California Academy of Sciences

We hit the California Academy of Sciences (CAoS) on the afternoon of Wednesday, May 1. After a morning at Alcatraz, I didn't have any business walking around, but I'm too stubborn for my own good. I really hate to let all the medical crap I've been through in the last three years get in the way.

So I explored. Slowly. If there was a bench nearby I explored it as well.

The ground floor is where most of the action is. There are a pair of enormous globes: one for the Rainforests of the World exhibit, the other for the IMAX Morrison Planetarium.

We'd come specifically to see the planetarium, billed as "the world's largest all-digital" in the CAoS brochure.

I didn't wander very far, but we had an hour to kill before the next show. I took in the Puerto Rico reef aquarium and watched the Foucalt Pendulum display:



Explored several benches. They were of good quality and reasonably comfortable, but the main bench exhibit (a small group of them, supposedly shown in their natural environment) was kind of boring.

No benches at the planetarium entrance. We only stood for maybe 15 minutes, but it was starting to seem like forever by the time the doors opened and we were ushered into...the next waiting area (a darkened room, where our eyes could adapt). My legs and back were having fits, but I just kept standing.

Another 10 minutes in this darkened room, then (FINALLY!) we were led into the main theater, a 90-foot dome. Some pretty evil stairs, and damned if my host didn't want to go alllll the freaking way to the top. Man, what a hike. I felt like I'd fall backwards if I didn't hold on to the railing. Practically fell into my seat. Sighed in several kinds of relief.

Several minutes of introduction from the staff. The theater was more brightly lit than that darkened room had been (so much for adapting to the dimmer light...). The lights went down and the show got under way.

I wish I could describe the show. It looked amazing on that 90-foot IMAX dome, as if we were floating above the building's Living Roof. We pulled back, back, back: the campus, San Francisco and its peninsula, the West Coast, the Earth--

I blinked. I'd swear that's all it was, a blink, and overhead we were zooming back toward the Earth. Credits rolled, lights came back up, and my cellphone claimed that 20 or so minutes had passed.

Seriously. I'd managed to sleep through the one thing I'd come here to see.