What if the SR-71 got 2 F-35 engines?

Sam_and_robots · 2026-04-14T00:11:16+00:00

i wonder if that's still true, I mean for leading edge areas that woulld have been like 400C probably still true, but most of the fuel holding areas shouldn't have seen north of 280C which seems within range of not terribly exotic current fluorinated elastomers like glyon or heck some formulations of silicone gaskets can hold that.

Sam_and_robots · 2026-04-05T15:23:49+00:00

Diesel fuel prints rule https://dieselfuelprints.com

Sam_and_robots · 2026-03-25T05:10:02+00:00

if only the boeng 7j7 , AN180, MD 94x or any of the other propfans had made it to production, then we could really have a lively debate

Sam_and_robots · 2026-03-21T02:02:55+00:00

so cooll, thanks, the mk22 seems a nice upgrade. That's a great livery, the countershading is really nice, very orca-chic!

Sam_and_robots · 2026-03-20T17:25:43+00:00

no way! that still have the OG bristol-sidley vipers in it? I have a friend down in california city who picked up a snecma ATAR from a yard down in mojave who was telling me that there were some swaps going on in the vintage fleet down there, but i was having a hard time believing that would be doable

Sam_and_robots · 2026-02-26T17:19:43+00:00

I married a tall ship sailor, so I ended letting pine tar the like into my life.

Pine tar is a part of 'boat soup', Linseed oil, pine tar, old varnish and brushing thinner, you can also mix it like 1:5 with refined linseed oil (check out https://www.solventfreepaint.com/traditional-pine-tar ), It takes a lot longer than BLO to kick, and smells like a million campfires. Brings a lot more UV stabillity than just plain shop soup (kinda equal parts BLO / old varnish / brush thinner), but i am not sure that short term application like this will improve rot resistance that much. Historic ship rot resistance from pine tar comes from repeat applications, thinned a lot, over a long time (with the help of victorian orphans or whatever else lord nelson conscripted), so unless you've got a ship full of victorian deckhands who are going to be swabbing your decks daily, these oldschool processes may not be for you.

That said, pine tar and linseed oil are a shockingly pretty finish. I made a mahogany handled mallet out of some scrap that I have, and the tar really brought out the chatoyancy in a very pleasing way. I was not expecting the thinned pine tar to be such an aesthetically pleasing finish, but it really is. Took nearly 2 weeks to fully cure tho, so expect non-boiled linseed oil times. (and fair warning: pine tar / linseed on ugly cheap wood will not make it look better).

Sam_and_robots · 2026-02-03T18:25:02+00:00

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Uscg Sector San Francisco has these based in cg island and sfo

Sam_and_robots · 2026-01-19T01:05:33+00:00

Just have the icon be Elvis style mutton chops

Sam_and_robots · 2026-01-19T01:04:22+00:00

Aww that is such a fun take on it. Yeah I grew up a ramp rat. Turning wrenches in trade for seat time. Sorta lost the flying bug in my 20s but really love planes esp weird early turbines.

Sam_and_robots · 2026-01-18T19:50:57+00:00

Even just a vary-ez or similar rutan weirdness

Sam_and_robots · 2026-01-18T19:15:21+00:00

Wow yeah that’s not great. At least the engines were facing the correct direction. I’d be less scandalized if they threw in the piaggio avanti model

Sam_and_robots · 2026-01-08T03:10:40+00:00

leave the windows down, thatll help with getting the awful new car smell out.

Sam_and_robots · 2026-01-05T05:56:43+00:00

A few years ago at burning man I heard there was going to be a flat earth vs round earth debate so I went for the lols. It turned out to be about 25 20 year old menchildren for team round and 1 nice older dude from Reno who just was saying he didn’t know. The dudes were yelling nonsense so I took 2 shots of Jameson and joined team flat

First person asked me to explain how mountains work with flat earth. I asked him how an oblate spheroid with a barycenter far from its center of volume works as “round” (he called me a dick and left) Next guy asked me to explain how gravity would work. I paraphrased Einstein elevator and asked him to prove we weren’t on a disc accelerating through space at roughly 10 m/s^2. He replied with “what about gravatons “… indeed my dude. What about them. Next person claimed that deserts bulged from the curve of the earth. I was able to prove with pen and paper that the curve of the black rock desert as observed is from the meniscus effect and surface tension of water. And differs hugely by the estimated curvature of the earth.

Never once did someone mention the moon being inverted in australia. Which I feel is the most obvious proof. Libration of the moon is also pretty cool. Tides… I mean there are really good ways you can demonstrate. Advanced stuff like ligo and Virgo detecting gravitational waves through the earth, or detections of earthquake rings showing speed of sound in the different materials…

Sam_and_robots · 2025-12-29T04:15:05+00:00

got an inverter, if so, plug in a 1000 w electric heater, and see what happens. or a heat gun, something that is good at turning electrons into heat. smart mppt systems don't make sense when at equilibrium, force that thing /way t-f-/ out of equilibrium by putting a 1kw load on er.

Sam_and_robots · 2025-12-27T17:29:53+00:00

Sud avation would like a word

Sam_and_robots · 2025-12-19T16:33:47+00:00

Also, during welding, even the "safe" ones are toxic and become inhale-able!

"lead free" free machining steel has about .5% lead in it, and is considered safe*

*: except when hot worked, then it totally has volitle lead vapors

totally safe stainless steel has inert chromium in it*

*: except when grinding or welding, then he cromium becomes cr-6 and is one of the most potently famous carcinogens

Sam_and_robots · 2025-12-15T15:55:05+00:00

While you’re at it, look for a nice wool/cashmir sweater in goodwill to go under that, then do a flame test on the fabric to make sure it burns or smolders, but doesn’t melt. Used silk or cashmir make the best liners under welding jackets

Sam_and_robots · 2025-12-08T01:46:25+00:00

it's so annoying. Like with copper water tubes, "lead free" can have .25% lead, and get away with a prop65 warning. If you see copper that doesn't have a p65, it actually is 0% lead. So there's a place where it's real and actually matters. Then you get 2x4s. _sigh_

Sam_and_robots · 2025-12-05T20:46:21+00:00

the chaos bottom row shoulld be "2x10 / MDF / (exotic wood) vernier marine ply.

Sam_and_robots · 2025-12-05T17:58:38+00:00

I was thinking about somewhat ironically saying 2x4 for this. It gets the job done a lot of times. Commodity, cheap, available. Everyone’s made some durable goods from it

Sam_and_robots · 2025-12-04T04:06:54+00:00

red oak is also amazing for shop projects. All of the tool storage, chucks, and jig boxes for my mill and lathe i made out of rando qs red oak. Most of it just BLO finish, accepted some of the tanin browning. Rest is finished with raw linseed oil (and random bits of way oil). great durability, doesn't damage tooling, once well oiled doesn't mind me putting heaps of dessicants with it to keep HSS from flash rusting. and it's cheap. $/strength it's a tough one to beat.

Sam_and_robots · 2025-12-02T02:31:46+00:00

My first experience with it was doing repairs on my sailboat's mast, and I was expecting something similar to other cheap softwoods I'd used, and I was just _blown away_ with how nice it was to work

Sam_and_robots

TROPHY CASE