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  1. Matthew Johnson

    Vultures...correct last second maneuver?

    I had a bald eagle tuck it's wings and dive under us once, both my instructor and I were crouching down as best we could to be shielded by the cowling and instrument cluster though... The eagle folded it's wings at what felt like 30-50' in front of the prop and dropped beneath us safely. Up...
  2. Matthew Johnson

    Let's not forget the rolly things, boys

    That's what (s)he said! Sorry, couldn't resist.
  3. Matthew Johnson

    Has anyone ever volunteered at Airventure?

    Like Youtube gold!?!?
  4. Matthew Johnson

    Race car between cyclecart and formula vee?

    I also used to race a Spec Miata, and would echo everything you said plus the large field sizes for SM at both Regional and National SCCA races made for a lot of fun racing no matter where your skill and preparation level put you within the pack. And they are durable enough that you can drive...
  5. Matthew Johnson

    Need small air compressor.

    Not that you need the power for topping up a few tires per year, but I have also been really impressed with the California Air Tools compressor that I bought for the basement/hangar a few years ago (I went with small aluminum tank and highest power motor/pump that would run on 120v)...
  6. Matthew Johnson

    Tomato soup (¡NAǃ)

    We like making a roasted tomato soup like in this video:
  7. Matthew Johnson

    A sandwich dilemma

    The Zen feeling of flow in == flow out is amazing; eat the f'ing sandwich!
  8. Matthew Johnson

    NA: Vehicle transportation service

    Reliable and Pilot are both pretty good, we use Reliable for transporting engineering test vehicles at work exclusively but I have had them no-quote me on some personal vehicle shipments in the past (and used Pilot as a backup).
  9. Matthew Johnson

    Track Cars vs. Aviation

    Formula SAE in school, then SCCA Spec Miata until the combination of having trouble differentiating what I was doing for work vs. recreation made racing feel like work, the automotive industry downsizing of ~'08, and my divorce made me stop. A smattering of LeMons/Chumpcar/Champcar races in the...
  10. Matthew Johnson

    When do you slowdown to VA

    This is a very good point, and something that I really hadn't considered! I don't like to be wrong, but I like to learn more than I like to be right... so thanks!
  11. Matthew Johnson

    When do you slowdown to VA

    This is all well and good, but the structure know only stress and strain - basically load factor in g * weight. So while the FAA says that as you reduce mass in the airplane Va decreases (i.e. they want you to stay below the g limitations of your plane's certification, all the wing knows is the...
  12. Matthew Johnson

    Post Something Interesting

    mexican sledgehammer fireworks
  13. Matthew Johnson

    (NA) Propane cook top versus natural gas

    Induction changes power level to the food just as quickly as gas (either one). Note that doesn't necessarily mean instantly if you are talking about a high heat capacity pan like cast iron that is very hot - but still exactly like gas. The only thing that I miss about a gas stove is being able...
  14. Matthew Johnson

    N/A tire pressure in the car

    But the air that is already in the tire gets compressed, so it heats up. If you use a sensitive enough gauge, you can watch the pressure go up as you fill the tire then drop as the two air masses equilibrate.
  15. Matthew Johnson

    N/A tire pressure in the car

    Chemical engineer side of me: Air, nitrogen, and carbon dioxide at passenger vehicle tire pressures all follow the ideal gas law pretty well, so you can estimate pressure change by knowing the temperature change according to the formula: Pressure * Volume = Number of molecules * R (ideal gas...
  16. Matthew Johnson

    Very small engines - a practical thread

    I have always wanted an excuse to buy one of these, and as much as I love internal combustion engines would probably pick something with minimal moving parts for reliability: https://www.bioliteenergy.com/products/campstove-2-plus Basically a small fire driving a thermoelectric device that is...
  17. Matthew Johnson

    Dear auto manufacturers.....[rant]

    The only flaw with this logic is that the auto manufacturer is a completely separate company from the dealership/service department.
  18. Matthew Johnson

    Put-in-bay vintage sports car reunion

    I suspect that the airport is unattended most of the time in the off-season, so I reached out to the port authority that oversees it. Just hoped that someone here would have had direct experience.
  19. Matthew Johnson

    Put-in-bay vintage sports car reunion

    Does anyone know if 3W2 has airplane parking available during the vintage races, and if so is the airport open before/after racing activities each day? It is a quick and easy flight, but a pain to drive/ferry there...
  20. Matthew Johnson

    [NA] Why do we have fingernails?

    For the chalkboards!?!?
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