PDF Dump (1): Star Courses 2018-2022

So, after scanning in a bunch of old Star Course materials for OCR training, I figured why not toss them up here, too?

Continue reading “PDF Dump (1): Star Courses 2018-2022”

(RWC 001) 2020̶1: The AAR Itself&Proper (4th)

(Broken into four parts because while I was originally going to just cram it all into one post, I figured that at least three of the bits were distinct enough to warrant their own things and the fourth was… not so much really, but by this point it was halfway in-between two of those bits, so why not just go for it? And totally not because of anything like this… And oh yeah, maybe in honor of our getting 4th? ¯\_(ツ)_/¯) So!

  • Post 1 (⇠You Are Here): RWC 001 AAR *4th* AKA We Was Once Again Beaten By the Best and Also Two More Teams As Well Who, While They Were Not By Definition “the Best” As They, Too, Were Beaten By the Doubly-Aforementioned (See DC 2019 AAR) “Best”, Were Nevertheless Solidly Better Than Us So Mad Props & Respect To Them For Sure Even Though I Don’t Know Exactly Who They Were (See Post 4…)
  • Post 2: A Brief Discursion into the Design, Construction, Functionality, and Market Targeting of the “Speed Rucker”
  • Post 3: RWC and/or/vs Star Courses – Exegesis, Eisegesis, and Comparative Anatomy Thereof
  • Post 4: WHAT THE EVERLOVING FUCKITY FUCK GORUCK I MEAN DO YOU EVEN MARKETING JUST HOW IN THE COUNTRY-STYLE CHICKEN-FRIED FUCK!?!?!?!

(And just to clarify for those too lazy to click on the link to Post 4 above [or, well, an inch or two ago], or the “Read More” below – the event was great. The stream-of-consciousness-profanity is about, well… let’s just say that if you didn’t sign up for the event when it was first announced in the middle of 2019, you would have had no idea that it was held this past weekend.)

Continue reading “(RWC 001) 2020̶1: The AAR Itself&Proper (4th)”

GORUCK Star Course 50-Miler, Philly 2019

AKA Phil and Jed’s Excellent Adventure Part 2: Electric Boogaloo

A’ight, so my brother and I ran the GORUCK Star Course 50-Miler in Philly over the weekend. Team Sloth, @teamslothgoruck on Instagram. Here’s the rough timeline of relevant stuff, with miscellaneous asides thrown in when relevant, way more memes than are in any way necessary, and a random blurble of semi-related stuff at the end. Steve’s stuff is again in sky blue.

(And in case you’re thinking, “Hey, this intro looks a lot like this one, and even more like this one“, then spot on.)

After performing acceptably at the Philly Star Course last year, it was kinda inevitable that we’d do it again this year, especially after our poor performance in DC. Due to this being our 3rd Star Course, our preparation was a bit more relaxed than usual. For example, I wrote our navigational website AstroNav for Philly 2018, and then made a new version for DC, but I didn’t bother with a new one for Philly 2019 (I started on one, but only worked on it for a few hours before abandoning it). The 2018 version worked just fine, and the one minor feature I added to it ended up not even being necessary.

Continue reading “GORUCK Star Course 50-Miler, Philly 2019”

GORUCK Star Course 50-Miler, DC 2019

A’ight, so my brother and I ran the GORUCK Star Course 50-Miler in D.C. over the weekend. Team Sloth, @teamslothgoruck on Instagram. Here’s the rough timeline of relevant stuff, with miscellaneous asides thrown in when relevant, way more memes than are in any way necessary, and a random blurble of semi-related stuff at the end. Steve’s stuff is again in sky blue.

Continue reading “GORUCK Star Course 50-Miler, DC 2019”

GORUCK Star Course 50-Miler, Philly 2018

A’ight, so my brother and I ran the GORUCK Star Course 50-Miler in Philly over the weekend. Team Sloth, @teamslothgoruck on Instagram. Here’s the rough timeline of relevant stuff, with miscellaneous asides thrown in when relevant.

But first, here’s Steve with his intro – he had to fly out to London for work 8AM the morning after, so we’re going back and forth writing this over email:

Big picture background: Who are we?

no_one_cares

Ahem.

Continue reading “GORUCK Star Course 50-Miler, Philly 2018”

The Buddy Bear Crawl; or, Finally a Practical Use for That PHYS-151 Problem!

What is the buddy bear crawl? This:

Buddy Bear Crawl IRL
Or rather, it’s like this, only the person underneath has their rucksack switched to the front, and you have a ruck on, too, so they’re probably grabbing you around the neck.

A wild “classic problem from introductory physics” appears! (Seriously, this was one hell of an AHA! moment for me.)

(Specifically, Young & Friedman 5-38. [Question #2 in the linked pset.])

So, for dragging something or someone along a flat surface at an angle Θ above the horizontal, you have:

F = \frac{\mu _{k}mg }{\cos \theta +\mu _{k} \sin \theta }

Note that the above is for a constant velocity – to minimize the force required, set the derivative to 0:

\frac{\mathrm{d} }{\mathrm{d} \theta }\left ( \frac{\mu _{k}mg}{\cos \theta +\mu _{k}\sin \theta } \right ) = 0\rightarrow \frac{\mathrm{d} }{\mathrm{d} \theta }\left ( \cos \theta +\mu _{k}\sin \theta \right )^{-1} = 0

\frac{\sin \theta -\mu _{k}\cos \theta }{\left ( \cos \theta + \mu _{k}\sin \theta\right )^{2}}=0\rightarrow \sin \theta = \mu _{k} \cos \theta

\tan \theta = \mu _{k}\rightarrow \theta = \arctan \mu _{k}

What’s the coefficient of kinetic friction for dragging a person + rucksack along the ground? Based on the Journal of Strength and Conditioning Research, Volume 27 / Issue 5, May 2013, p. 1175-8, I’ll go with 0.33, giving:

\theta = \arctan 0.33 \approx 18^{\circ }

So, the next time you’ve got to pull someone wearing a rucksack (filled with bricks) while you’re wearing a rucksack (filled with bricks), while crawling like a bear the entire length of the soccer pitch in a public park (at three in the morning, after hydro burpees), remember – eighteen (18) degrees above the horizontal.

DIY: GORUCK Shoulder Strap

[There was to be something longer here but, honestly, this whole thing boils down to “I liked GORUCK’s old shoulder straps, I have GORUCK bags without shoulder straps, and GORUCK no longer sells the type of shoulder strap I like so I’ll make my own.” So.]

GORUCK used to make and sell the best shoulder strap I’ve ever seen – dual tri-glide adjust, just-right-width nylon webbing, and solid metal clips. They still sell a shoulder strap, but it has a section of sewn-on padding in the middle, and

  1. Said padding puts a rather high lower limit on the shortest length to which the strap can be adjusted, plus
  2. If you need padding on a cross-body shoulder strap, you should most likely be reëvaluating your load-carrying equipment choice(s).

(And, y’know, at $35 a strap, and given the number of GORUCK bags I have that could take a shoulder strap, less the number of shoulder straps I have already… why not DIY?)

Parts: Wasn’t too picky about the webbing or the tri-glides, but the snaps I wanted to be just right. My brother finally found these for me – 1 ½” Metal Snaphooks from Tom Bihn. (Cue sectarian strife over the mixing of Tom Bihn and GORUCK.) They’re a touch smaller, but otherwise appear identical to the snaps on my original GORUCK straps.

A few quick measurements gave 60.75″ for the total length of the webbing for the GORUCK strap, so I called it 5′ and cut and melted the edges of the nylon webbing. (No picture because one, it was blurry, and two, it’s exactly what it sounds like – five feet of loosely folded nylon webbing.)

IMG_20170604_173221213
The first tri-glide attached. Note that my sewing machine had trouble going through three layers of heavy nylon webbing, so while the end-folds were machine-stitched, the tri-glide attachment was done by hand.

img_20170604_173246487.jpg
The first of the snaps attached with the rest of the strap threaded back through the tri-glide.

img_20170604_174011743.jpg
Finished strap, cinched down.

GORUCK Rifle Case / LaRue Covert Rifle Case

Note: You can’t actually buy the GORUCK Rifle Case at the moment (it’s been available through a pre-order, an initial run, and a second pre-order to date). It’s probably 50/50 if it becomes standard production this time around, and even then, outside of their core rucks GORUCK often comes and goes on inventory.

(Not that there’s anything wrong with this; it’s just a different mentality that you have to be willing to accept. GORUCK is a small, high-quality, American-made gear company; they don’t have a logistics tail of Chinese factories & warehouses [although, fine, I admit that I don’t know where their Cordura, thread, etc. comes from…] nor front-end resellers buying in bulk.

Up-front for what it’s worth, if the GORUCK case had been available when I bought the LaRue case, I would have ponied up the extra for the GORUCK case. I’m happy with the LaRue case, but I’m also a GORUCK aficionado.

Now that I have both, though, they’re similar enough and different enough that I’ve got a better understanding of both of them; enough to provide a bit more of an overview than “Yup, it’s a case, it holds a rifle.”

Further note that my point of view on this is that of an OCPD geek. If you want to improve your shooting, buy a case of cheap ammo and go practice. If you want to take a piece of gear downrange, buy a pallet and test it to destruction yourself.

If you’re bummed that Sortimo T-BOXXen still aren’t readily available stateside and really wish that we could all just get along and choose one of MIL-STD-1913 / KeyMod / M-LOK already, then yeah.=ƎE=)

Both cases are advertised / designed to either hold an assembled SBR or a broken-down carbine or rifle. (I’m using my go-to AAC 300 BLK 9″ and a Noveske Light Recce 16″ here.)

Continue reading “GORUCK Rifle Case / LaRue Covert Rifle Case”

GORUCK FAD Handgun AAR

Update 2016-05-13: If you’re interested in GORUCK Firearms Gear and missed out on the latest pre-order, my brother’s put together a quick tutorial about upgrading a regular rucksack into a Shooter-style Ruck:

https://www.reddit.com/r/Goruck/comments/4ipyk9/homemade_ruckshooter_ruck_upgrade/

Note – I wrote this up for my own reference from my scrawled notes the week after the FAD, and then I went back and formatted and edited it to put up here years later. If anything ended up misremembered or flat-out wrong, that’s on me.

Introduction:

We started off ranked up and the cadre went over the basics – range rules, cold and hot, what the medevac vehicle was, all of the basics. Lots of jokings, (“We have several Delta medics here, but you’re all civilians, so if you’re injured, they’ll just sit and watch.” [Bert points and laughs.] “And remember, you signed a death waiver.” And, “We’ll throw you in the back of the car and drive you to the nearest hospital. Which is six hours away.”) but it was still all professional and squared away.

Then we all circled up around Tyler as he went over the basics. We all had to recite after him the Four Rules and he also clarified that, while the First Rule is that all guns are loaded, that said – know what condition your gun is in at all times. Then he went over the details of loading, unloading, manipulating, checking, and handling of the gun.

When you have your gun out of the holster, it makes us nervous. We might say, ‘No, don’t do that’, but inside we’re thinking ‘Holy fuck no, don’t fucking do that!’
– Cadre Garrett

Someone asked a question about the slide being locked back, and one of the guys in the advanced group said how there’s a notch on the slide that gets caught, and Garrett spoke up – “We’ve got half a dozen cadre here. If he [Tyler] misses anything, we’ll help him out.” Translation – shut the fuck up, guy. Adults are talking. Very calm and no-nonsense.

Throughout, Tyler stressed how shooting was a science. Math, physics, ballistics in between, all of it science. Do A, then B. How stance helps with balance, and how a lot of that is common sense (i.e., put someone on a moving platform and see how they naturally stand).

Continue reading “GORUCK FAD Handgun AAR”

GORUCK FAD Rifle 002 AAR

Update 2016-05-13: If you’re interested in GORUCK Firearms Gear and missed out on the latest pre-order, my brother’s put together a quick tutorial about upgrading a regular rucksack into a Shooter-style Ruck:

https://www.reddit.com/r/Goruck/comments/4ipyk9/homemade_ruckshooter_ruck_upgrade/

Note – I wrote this up for my own reference from my scrawled notes the week after the FAD. If anything ended up misremembered or flat-out wrong, that’s on me.

No idea how long it’ll be up, but the Facebook page with pictures and such is here.

Introduction:

We started off hanging out in the parking lot for a few minutes as people trickled in – lots of GORUCK gear in evidence, obviously, and mostly young to younger-middle-aged males. An interesting contrast to the mostly older men and women showing up in equal numbers for the handgun class being put on by the range the same morning.

Snow started falling fairly heavily and, as fun as it would have been to see the vortex trails from the full firing line, I’d foregone a base layer of tights and was just in jeans… Fortunately, it let up by the time we came back outside after the briefing.

The Cadre called everyone into the clubhouse and introduced themselves (there had been a brief delay due to three or four traffic stops by State Police on the way over). Cadre Machine was leading the course, with Cadres Jesse and Logan assisting.

Everyone confirmed their name, age, occupation, GORUCK experience, and firearms experience. As you might expect, mostly male, mostly young – thirty plus ten minus five, a preponderance of police / EMT / firefighters / forensics scientists, a few techies, and most had done several GORUCK events.

There were several, though, who hadn’t done any GORUCK events, and several who hadn’t fired a gun before. Only a couple had serious experience with the AR platform (besides the Cadre, of course), though most had some pistol and general firearms experience.

Standard uniform was Arc’teryx jacket and cargo pants, supplemented with sweatshirts and morale patches. Apart from a couple of guys with chest rigs or battle belts and one guy running drop-leg, the tacticool-aid was at a minimum.

Scene set, we drove over to the club’s law enforcement range and got out our kit, set our stuff up underneath the shelter, and then joined Cadre Machine in classroom formation out on the range.

Continue reading “GORUCK FAD Rifle 002 AAR”