Congrats to Steve! Fascinating guy, and the Mite is a gorgeous airplane.
Looks like there’s an update on a new version of XFLR5 called flow5. Looks to be much more powerful but will be a paid software....
Normal convention is negative Cm is a nose down moment. At 18+ degrees AoA I’m guessing he’s well past the linear increase in Cl and XFLR is...
I found it very sensitive to how the wing was modeled. If you modeled the wing as one “section” with 50 spanwise panels you would get very...
I’ve used XFLR5 quite a bit. I use it primarily as a GUI for XFOIL, however I use the wing analysis portion quite a bit. It’s the simplest program...
As I hit enter I realized a slip would accomplish the same thing, but this is probably more comfortable than being cross controlled.
The A-10 uses split ailerons as brakes as well. Just eyeballing it, I would venture a guess that’s it’s performance is roughly equivalent to two...
I’ve been following them on Instagram. Seems like they’ve got a real nice setup and are making serious progress. I hope they succeed. My only...
Man now that’s a cabin built for big guys. I’m sold. I’m a fan of the Riblett airfoils as well, although I’m not sure the perils of the NACA...
Chris Heintz’s book “Flying on your own Wings” has an excellent discussion on loading of multiple fasteners in a line. He provides safety factors...
They’re comparing the noise of a JetRanger with a single person vehicle. Not exactly a fair comparison.
The Sporty's app was great, I would drill questions on my way to work or waiting in line. You could sort by topic and it had a huge database. It...
That's just wild. Doesn't appear to be the most sturdy Ferris wheel either, surprised it all held up.
Same here. To be fair, the terms are defined, but it’s not common phraseology. But the lack of units drives me up a wall. I will say though the...
Hiscocks book Light Aircraft Design has a lot of good information on control surface loads. Sizing the control surfaces is a two part problem. You...
I wouldn’t rely on fishmouthing for any sorting of real loads in a non-welded joint. If you’re intersecting at close to a 90 degree angle you...
This is not a defense of the Raptor project at all but I think you have to be very careful throwing out the scam term. Is every failed business...
Absolutely, which is why its pretty much remained a study for so long. In terms of understanding the aerodynamics, I tried to solve for upwash and...
I’ve been quietly sketching an idea that been in my mind for a while that is sort of a hybrid between a Quickie and the Catbird. Essentially a...
We are doing this for the Litefighter. Since the wing is built with a inboard and outboard sections we built a test article outboard sections and...
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