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Search: Posts Made By: BoKu
Forum: Crash and Burn 20 April 2018, 04:36 PM
Replies: 49
Views: 1,450
Posted By BoKu
You are correct that most airplanes have more...

You are correct that most airplanes have more power than required for cruise in order to takeoff and climb. Multi-engine airplanes generally have more margin besides, since the point of having more...
Forum: Crash and Burn 20 April 2018, 12:45 AM
Replies: 49
Views: 1,450
Posted By BoKu
Yup, covered that.

Yup, covered that.
Forum: Crash and Burn 19 April 2018, 06:00 PM
Replies: 49
Views: 1,450
Posted By BoKu
Good question, I'm not certain I can do it...

Good question, I'm not certain I can do it complete justice.

First off, my usual disclaimer: I am not an engineer, aero or otherwise. I have designed a racing sailplane (www.hpaircraft.com), two...
Forum: Crash and Burn 19 April 2018, 04:38 AM
Replies: 49
Views: 1,450
Posted By BoKu
Airplane Alaska 261 excepted, I think that most airliners...

Alaska 261 excepted, I think that most airliners have positive static stability in inverted flight, in the sense of having a positive pitch input force gradient throughout the operational speed...
Forum: Crash and Burn 19 April 2018, 12:06 AM
Replies: 49
Views: 1,450
Posted By BoKu
The Wright Flyer and many of its contemporaries...

The Wright Flyer and many of its contemporaries had effectively negative pitch stability, and they were still what you'd call flyable. It just took a lot of attention and a little luck to stay ahead...
Forum: Crash and Burn 18 April 2018, 11:57 PM
Replies: 49
Views: 1,450
Posted By BoKu
Airplane Any jolt delivered by the engine hard enough to...

Any jolt delivered by the engine hard enough to disrupt the fuselage structure to that degree would simply result in the engine tearing itself and its pylon off the wing. They used to design the...
Forum: Amusement Bark 17 April 2018, 10:57 PM
Replies: 5
Views: 258
Posted By BoKu
I noticed the exact same thing, and had the same...

I noticed the exact same thing, and had the same reaction.
Forum: Soapbox Derby 14 April 2018, 02:58 PM
Replies: 29
Views: 1,451
Posted By BoKu
United States Mouse, thanks for taking the time to write that....

Mouse, thanks for taking the time to write that. It expresses the situation very well.
Forum: Soapbox Derby 13 April 2018, 04:33 PM
Replies: 29
Views: 1,451
Posted By BoKu
Driver "Oops, I crashed America, and I just now realized...

"Oops, I crashed America, and I just now realized my family is on board. Gotta go!"
Forum: Business Bytes 27 March 2018, 11:39 PM
Replies: 181
Views: 15,923
Posted By BoKu
Try Settings > Lane Keeping > Special > Apexing,...

Try Settings > Lane Keeping > Special > Apexing, then select F1, WRC, or NASCAR. Choose wisely.
Forum: Soapbox Derby 27 March 2018, 09:57 PM
Replies: 15
Views: 872
Posted By BoKu
On the other hand, when doctors smear santorum,...

On the other hand, when doctors smear santorum, that's a different thing entirely. That's what the gloves are for.
Forum: Crash and Burn 27 March 2018, 08:42 PM
Replies: 2
Views: 852
Posted By BoKu
It appears that, in addition to their four-point...

It appears that, in addition to their four-point seat belts, the passengers were also wearing fall-protection harnesses with lanyards secured to the helicopter. As I read that news report, the latter...
Forum: Business Bytes 27 March 2018, 02:36 PM
Replies: 181
Views: 15,923
Posted By BoKu
That was fast. In geological terms, at least.

That was fast. In geological terms, at least.
Forum: Crash and Burn 24 March 2018, 03:58 PM
Replies: 28
Views: 2,147
Posted By BoKu
BTW the discussion about this on the eng-tips.com...

BTW the discussion about this on the eng-tips.com forums is fascinating and intense. It's also civil and constructive.
Forum: Crash and Burn 23 March 2018, 04:58 PM
Replies: 28
Views: 2,147
Posted By BoKu
My inclination is the other way around, but I...

My inclination is the other way around, but I rather hope to be proven wrong.

I predict that as the NTSB investigation proceeds, we're going to see finite element analysis (FEA) screenshots with...
Forum: Business Bytes 23 March 2018, 03:07 PM
Replies: 181
Views: 15,923
Posted By BoKu
It is likely that the contrast depicted by the...

It is likely that the contrast depicted by the video camera is a poor match for the contrast perception of the human visual system, so I wouldn't try to read too much into it.



It just makes it...
Forum: Crash and Burn 22 March 2018, 05:25 PM
Replies: 28
Views: 2,147
Posted By BoKu
I have since encountered detail drawings of the...

I have since encountered detail drawings of the attachments for the "cables," (they're actually 16" diameter hollow tubes), and their rather superficial anchors to the canopy back up the idea that...
Forum: Business Bytes 22 March 2018, 05:14 PM
Replies: 181
Views: 15,923
Posted By BoKu
Keep in mind that even the best video cameras...

Keep in mind that even the best video cameras aren't particularly good at capturing and representing what the human visual system can perceive. Your eyes can adapt very quickly to a wide range of...
Forum: Crash and Burn 22 March 2018, 02:38 AM
Replies: 28
Views: 2,147
Posted By BoKu
That is currently a matter of some debate. There...

That is currently a matter of some debate. There are statements to that effect even in early reports from the NTSB, but other credible reports to the contrary. I'm waiting for the dust to settle on...
Forum: Business Bytes 20 March 2018, 09:46 PM
Replies: 181
Views: 15,923
Posted By BoKu
Ah, thanks for that information. Standing by to...

Ah, thanks for that information. Standing by to see how it shakes out.
Forum: Business Bytes 20 March 2018, 07:38 PM
Replies: 181
Views: 15,923
Posted By BoKu
Driver Interesting tidbit from that report: ...

Interesting tidbit from that report:



Not that this is any kind of smoking gun, or even a proximal cause, just that it's interesting that the car was not adhering to the strict letter of the...
Forum: Crash and Burn 16 March 2018, 10:51 PM
Replies: 28
Views: 2,147
Posted By BoKu
I am pretty sure that is a misquote or...

I am pretty sure that is a misquote or mischaracterization of what was going on.

In its finished form, this was to be a cable-stayed bridge with a tower and diagonal cables. However, at the time...
Forum: Crash and Burn 28 February 2018, 12:59 AM
Replies: 15
Views: 1,160
Posted By BoKu
Airplane To clarify: Everything you do to an airplane to...

To clarify: Everything you do to an airplane to make it heavier decreases the safety of the people on board, and also that of the people in the immediate vicinity of where it operates. Every extra...
Forum: Crash and Burn 27 February 2018, 06:44 PM
Replies: 15
Views: 1,160
Posted By BoKu
***Full disclosure: I'm not an engineer, aero or...

***Full disclosure: I'm not an engineer, aero or otherwise. But I do design, develop, and fly small aircraft. That requires a certain familiarity with the full spectrum of aeronautic principles and...
Forum: Crash and Burn 27 February 2018, 05:35 PM
Replies: 15
Views: 1,160
Posted By BoKu
Given the stated facts, my assumption would be...

Given the stated facts, my assumption would be that the stowaways climbed into the landing gear well and were resting on top of the normally-closed inboard door, unaware that what they were sitting...
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