## Search found 4521 matches

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Fri Apr 15, 2022 7:47 am
Forum: Non-Aviation
Topic: Netflix Jimmy Savile Doc - A British Horror Story
Replies: 36
Views: 2132

### Re: Netflix Jimmy Savile Doc - A British Horror Story

I haven’t seen the documentary (don’t have Netflix) but I do work in the coastal town of Scarborough where Saville was buried and where he spent much time in the past. I am told in the 70s and 80s it was common for him to come on a ‘night out’ and it was well publicised. Some stayed away from him bu...

Tue Apr 12, 2022 12:23 am
Forum: Civil Aviation
Topic: Aircraft Certification Problems
Replies: 25
Views: 3341

### Re: Aircraft Certification Problems

I don’t see why they need to change the arrangements on amended type certificates. The system, as far as I can tell was pretty good and was basically “having an aircraft in demonstrably safe operation is as good as having an aircraft designed to the latest standards”, an official safety standard of ...

Mon Apr 11, 2022 4:47 pm
Forum: Technical/Operations
Topic: airplane gliding
Replies: 43
Views: 5255

### Re: airplane gliding

Of course it isn't L^(3/2)/D, the U is Cl^(-1/2)

Mon Apr 11, 2022 3:57 pm
Forum: Technical/Operations
Topic: airplane gliding
Replies: 43
Views: 5255

### Re: airplane gliding

If anyone cares, a simple formula to calculate max gliding range is Range=(L/D)*height. L/D max is the same as CL/CD and this occurs when the zero lift drag coefficient is equal to the induced drag coefficient. The speed for this flat glad varies with the square root of (1/density) so as you descen...

Mon Apr 11, 2022 3:57 pm
Forum: Technical/Operations
Topic: airplane gliding
Replies: 43
Views: 5255

### Re: airplane gliding

Duplicate

Sun Apr 10, 2022 9:14 am
Forum: Technical/Operations
Topic: airplane gliding
Replies: 43
Views: 5255

### Re: airplane gliding

If anyone cares, a simple formula to calculate max gliding range is Range=(L/D)*height. L/D max is the same as CL/CD and this occurs when the zero lift drag coefficient is equal to the induced drag coefficient. The speed for this flat glad varies with the square root of (1/density) so as you descen...

Thu Apr 07, 2022 3:55 pm
Forum: Civil Aviation
Topic: “The Protection From Abusive Passengers Act” Unveiled
Replies: 37
Views: 4795

### Re: “The Protection From Abusive Passengers Act” Unveiled

I have some questions. How many people ave done this a second time? Can you be banned before an incident? Is this like minority report? Do we believe the passengers at fault are thinking rationally when they behave in these ways? What’s more important, retribution for problem causing behaviour or pr...

Fri Apr 01, 2022 9:30 pm
Forum: Civil Aviation
Topic: Analyzing The Airbus A380’s Premature End
Replies: 226
Views: 59680

### Analyzing The Airbus A380’s Premature End

@ flipdewaf Things you're ignoring: ⋅ The ~75% higher moment of inertia in the 24.5ft D fuse. Moment of inertia is of little to no relevance in pressure dominated regime. ⋅ The prominence of bending reinforcement in the 779's fuse, which is 20% longer, made of heavier stuff, and...

Fri Apr 01, 2022 11:55 am
Forum: Civil Aviation
Topic: Analyzing The Airbus A380’s Premature End
Replies: 226
Views: 59680

### Re: Analyzing The Airbus A380’s Premature End

Do you have a cite for 77W figure? Not disagreeing, my 20% seems to be an underestimate from the last time I thought about this stuff much a few years ago. https://courses.washington.edu/ie337/Boeing%20Tour%20Facts.pdf ACC131 is the wing-body join station, They lift the wing structure. Even at 122k...

Wed Mar 30, 2022 7:38 pm
Forum: Civil Aviation
Topic: Analyzing The Airbus A380’s Premature End
Replies: 226
Views: 59680

### Re: Analyzing The Airbus A380’s Premature End

All wings provide their own bending relief. Magnitude and the relative values of wing (+engine) vs. fuselage (+contents) matter. Here we're increasing wing weight by ~40% (first cut) while fuselage+contents weight increases by only ~20%. What's more, the quad layout provides ~50% more engine bendin...

Wed Mar 30, 2022 5:18 pm
Forum: Civil Aviation
Topic: Analyzing The Airbus A380’s Premature End
Replies: 226
Views: 59680

### Re: Analyzing The Airbus A380’s Premature End

I see ferpes models and they don't seem right. If you take those L/D numbers and apply then to breguet they all come out with higher ranges than the aircraft in question. The discrepancy may trace to whether you're using OEM/airline rules for reserves and diversions to safety airports. I also find ...

Tue Mar 29, 2022 7:29 pm
Forum: Civil Aviation
Topic: Analyzing The Airbus A380’s Premature End
Replies: 226
Views: 59680

### Re: Analyzing The Airbus A380’s Premature End

Matt, Not sure if you were looking to match the A380 cabin area but I calculated the usable width top and bottom and then assumed a nose taper of ~1.5 and a tail taper of 2. Then I assumed that the top deck could only be of use in the constant section and the lower deck would make use of about 1/2 t...

Tue Mar 29, 2022 6:24 pm
Forum: Non-Aviation
Topic: Which nation has the best National Anthem?
Replies: 42
Views: 2469

### Re: Which nation has the best National Anthem?

bennett123 wrote:
God save the Queen is the best?.

As a Brit I would say that our national anthem was best described by Bill Bailey, a “funereal durge”.

The french one is one I like.

Fred

Sent from my iPhone using Tapatalk

Tue Mar 29, 2022 5:13 pm
Forum: Civil Aviation
Topic: Analyzing The Airbus A380’s Premature End
Replies: 226
Views: 59680

### Re: Analyzing The Airbus A380’s Premature End

[quote="Matt6461"][/quote] I see ferpes models and they don't seem right. If you take those L/D numbers and apply then to breguet they all come out with higher ranges than the aircraft in question. In terms of the models it doesn't directly apply bending stress, the method (Stanford univer...

Mon Mar 28, 2022 4:45 pm
Forum: Civil Aviation
Topic: Analyzing The Airbus A380’s Premature End
Replies: 226
Views: 59680

### Re: Analyzing The Airbus A380’s Premature End

Checking in on the A380 postmortems... Folks have made the most important points: ⋅ 1. A388 wing/empennage/engines/MLG were sized for growth with disastrous results ⋅ 2. A380 fuselage is not very efficient for a double-decker (though still more efficient than any single decker) ...

Sat Mar 26, 2022 9:39 pm
Forum: Non-Aviation
Topic: 2022 F1 Season News and Discussion Thread
Replies: 217
Views: 19785

### Re: 2022 F1 Season News and Discussion Thread

Newark727 wrote:
Next year can we have this race somewhere else? Like, not in Saudi Arabia?

Ukraine!

Sent from my iPhone using Tapatalk

Sat Mar 26, 2022 1:36 pm
Forum: Non-Aviation
Topic: 2022 F1 Season News and Discussion Thread
Replies: 217
Views: 19785

### Re: 2022 F1 Season News and Discussion Thread

Sports, including F1 racing, are being ruined by a toxic mix of money, questionable rules and enforcement, corruption and politics. For almost a century, F1 and its predecessors events have been held in countries with violent dictators, serious human right issues, tax dodging political entities, ci...

Tue Mar 22, 2022 8:56 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

Republican Governor of Florida, Ron DeSantis makes an official Governor's Declaration that Florida resident Emma Weyant won the swimming event and is the NCAA Champion, not Lia Thomas https://www.msn.com/en-us/sports/ncaabk/desantis-declares-florida-native-emma-weyant-ncaa-champ-in-500-free-over-li...

Tue Mar 22, 2022 6:10 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

Rob was talking about pap smears which is a test for cervical cancer. Every person is built different. Some people are lean and large, some people are lean and small. Some people build themselves for swimming, some people build themselves for hockey. Look at the build and speed of Bonnie Blair, Oly...

Tue Mar 22, 2022 5:02 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

Are you absolutely sure about that? https://blog.apicha.org/what-to-know-about-hpv-cervical-cancer-being-trans#:~:text=As%20mentioned%20above%2C%20if%20you,at%20risk%20for%20cervical%20cancer. Depending on how invasive the bottom surgery is, they could still need these checks. Oh, and breast cancer...

Mon Mar 21, 2022 11:05 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### The Lia Thomas Trans Swimming Controversy

Separate but equal does not work. See: America until the 1970s. Yes, trans people do want equality. Just like Blacks still want equality, gays still want equality, Muslims still want equality, etc. Maybe have a gender-neutral competition? Remove all barriers? Agreed, gender-neutral, not sex-neutral...

Mon Mar 21, 2022 7:31 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

When a person is on hormone replacement, they are taking doses of a hormone. It is used, also, for menopausal women. Again: the "problem" that needs to be fixed is education. To teach people that there are people out there who are not the biology they were born with. Several peer-reviewed...

Mon Mar 21, 2022 7:09 am
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### The Lia Thomas Trans Swimming Controversy

I don’t think anyone is suggesting someone can’t live their life how they choose is missing the point. I can’t life my life as a billionaire because I am not one, if you your sex is male you shouldn’t be able to compete as female sex, because you aren’t. Fred Sent from my iPad using Tapatalk The un...

Sun Mar 20, 2022 7:21 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

Why should we be forced to use communal changing rooms with cubicleS? Forced? If someone is forcing you to get undressed in a particular place then I’m afraid you have more problems than a simple gender vs sex debate. If you mean “ the place where you ‘CHOOSE’ to get changed is less to your liking ...

Sun Mar 20, 2022 6:35 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

https://www.cbc.ca/news/politics/canada-un-mission-tweet-russia-letter-1.6389649 I never thought that diplomats would be throwing around petty insults on Twitter like teens, but yet here we are. The latest Twitter spat is between Canadian and Russian diplomats. Ha! I thought it was pretty funny, sh...

Sun Mar 20, 2022 6:10 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### The Lia Thomas Trans Swimming Controversy

Until recently they were synonymous and on most forms it still says Sex M/F. Historic genuine ignorance is not a valid excuse for future wilful ignorance. Do you actually think Lia checks the M box? (And you schooling her on the difference between sex and gender would likely go as well as me explai...

Sun Mar 20, 2022 5:05 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

I find it interesting you call Lia she, yet you don't want her competing in women's sports. The pronouns use is to do with gender the athletic ability is due to sex. It’s pretty basic. I wasn’t going to get in to “the left does this and the right does that” stuff but I now feel compelled for some r...

Sun Mar 20, 2022 10:06 am
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

Hasn't this war shown us that tanks are no longer that useful in the battlefield? Who'd want to be a tank crew after seeing the effectiveness of the Javelins against the Russian tanks? Humans are as susceptible to bullets as tanks are to Javelins but we still send humans in…. Fred Sent from my iPho...

Sun Mar 20, 2022 8:15 am
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

I find it interesting you call Lia she, yet you don't want her competing in women's sports. The pronouns use is to do with gender the athletic ability is due to sex. It’s pretty basic. I wasn’t going to get in to “the left does this and the right does that” stuff but I now feel compelled for some r...

Sat Mar 19, 2022 10:33 pm
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

This deserves its own thread and has understandably been overshadowed by COVID and now the Ukrainian crisis in the last year. Unfortunately feckless and wishy-washy leadership by NCAA and other athletic organizations have led to this situation where highly competitive female athletes are being push...

Sat Mar 19, 2022 11:51 am
Forum: Non-Aviation
Topic: The Lia Thomas Trans Swimming Controversy
Replies: 127
Views: 7284

### Re: The Lia Thomas Trans Swimming Controversy

Either sex matters in a sport or it doesn’t…if it does the she should be banned as competing as a woman if it does not matter then the differentiation between men and women should be scrapped. There are sports already that do this.

Fred

Sent from my iPad using Tapatalk

Thu Mar 17, 2022 6:37 am
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

Are NATO assets able to help find Russian missile and artillery batteries in real time? E-8s and rivet joints of NATO forces regularly (constant presence) flying along the Ukraine and Belarusian borders. They are no doubt feeding this information to Ukrainian forces and are likely part of the huge ...

Tue Mar 15, 2022 12:42 pm
Forum: Non-Aviation
Topic: Gasoline prices, it hurts.
Replies: 630
Views: 40118

### Re: Gasoline prices, it hurts.

Mortyman wrote:
NIKV69 wrote:
Paid the most I ever have for a gallon today. \$4.99 hows that hopey changey stuff working for ya?

You have nothing to complain about. Compared to prices in Norway / Europe, that is cheap.

I haven’t filled up for this cheap since 2009!

Fred

Sent from my iPad using Tapatalk

Mon Mar 14, 2022 6:21 pm
Forum: Non-Aviation
Topic: Gasoline prices, it hurts.
Replies: 630
Views: 40118

### Re: Gasoline prices, it hurts.

N14AZ wrote:

May Putin suffer from ingrown toenails for the rest of his life…

Love it! I’m adding that to lexicon!

Fred

Sent from my iPad using Tapatalk

Mon Mar 14, 2022 10:06 am
Forum: Travel, Polls & Preferences
Topic: Three Flights you were most excited about...
Replies: 27
Views: 2404

### Re: Three Flights you were most excited about...

In no particular order...
First solo in PA38 traumahawk
MAN-DOH-MEL first time in business class
MAN-PHL first time on a plane with my daughter (then 2) she was so excited and I didn't even care that she wanted the window seat!

Fred

Mon Mar 14, 2022 6:27 am
Forum: Non-Aviation
Topic: Gasoline prices, it hurts.
Replies: 630
Views: 40118

### Re: Gasoline prices, it hurts.

Filled up the pickup truck yesterday for £1.83.9 per litre. It was more expensive than I was used to but we were as a family on a trip out, not being shit at, no planes trying to Bomb us, there were no tanks, I wasn’t forced to leave my wife and daughter to fight. Whilst filling up the car I was fre...

Sun Mar 13, 2022 7:45 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Russian Invasion of Ukraine - *Discussion* Thread

https://mobile.twitter.com/kamilkazani/status/1503066383969619973 According to this twitter thread that explains what pushed Putin to go into Ukraine, the author claims that concessions won't work. Well if Putin has no exit ramp that he's willing to take, then how the hell does this all end ? With ...

Sun Mar 13, 2022 5:41 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Russian Invasion of Ukraine - *Discussion* Thread

Reports on Sky News that there may have been some progress in the peace talks . I wonder if Putin realises along with his bully boys that they need to get out of this before its too late ! My take is that Russia would have to withdraw. Where I'm conflicted is in regards to Donbass and Crimea. While...

Sun Mar 13, 2022 7:07 am
Forum: Technical/Operations
Topic: Metric vs Imperial in aircraft
Replies: 43
Views: 6099

### Re: Metric vs Imperial in aircraft

Oh my goodness. I just had nightmares about a Professor who studied at Caltech giving us mixed units problems in my Aero Engineering ugrad. Seriously, slugs as a unit of mass? Pound mass vs pound force. SI was just simply more elegant. Unfortunately, having grown up in the US I do think in the so c...

Sat Mar 12, 2022 6:42 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

https://mobile.twitter.com/Global_Mil_Info/status/1502667894764752899 We all knew this was going to happen. So this spells the end of military aid ? Nope, it means step them up because they are working. I’m sure if it were possible to see any emotions through the little puffy ill face of putin we’d...

Fri Mar 11, 2022 8:57 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

Russia couldn’t complain about treatment anyway, I’m not sure there are any rules for POSMA (Prisoners of special military action).

Fred

Sent from my iPad using Tapatalk

Thu Mar 10, 2022 6:31 am
Forum: Civil Aviation
Topic: Discussion on Potential 777XF Specs
Replies: 489
Views: 54912

### Re: Discussion on Potential 777XF Specs

I suspect CMA CGM’s 777F order is purely because of availability. They are being delivered this spring, after being ordered last fall. I don’t think they have any intention of being a long term 777 operator, and if there was an equivalent Airbus available now they would have ordered that instead. L...

Wed Mar 09, 2022 6:28 am
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Russian Invasion of Ukraine - *Discussion* Thread

Russia would never allow entry into NATO or the E.U. That is the red line that triggered this whole damn mess. I disagree, it wasn’t the reason, it was the excuse. When your next door neighbor is an authoritarian regime that is so heavily armed that no nation will stick their neck out and risk star...

Mon Mar 07, 2022 1:03 am
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

The "buffer zone" is an idea that is fundamentally inseparable from Russian imperialism. Russia is no more entitled to one than France or Britain were to vast chunks of Africa. If Russia needs land between itself and its presumed enemies, why can't other nations demand the same? Shouldn't...

Sun Mar 06, 2022 11:35 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

Is it up to Cuba to host Russian nuclear weapons? Up to Venezuela? Cuba and Venezuela can choose to do this if they so wish, as indeed Cuba did. Is it up to India to stay of this mess and do business with whoever they want? India, are free to choose whichever course of action they choose. It’s like...

Sun Mar 06, 2022 11:30 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

Buffer zone was needed for their protection and slow down potential enemy. There is no natural obstacle in the northern European plain. So putin should have been able to maintain an “operation human shield” against their will so he wouldn’t have a tantrum? Well as it is right now he invaded that “h...

Sun Mar 06, 2022 9:03 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

Abhorrent behavior in 1991-2002? Like what? The cluster bombing of Chechen civilians? Why would you limit it to the 1991-2002 period anyway? You think putin isn’t driven by anything from the Cold War? Hilarious! IMHO Finland was totally acceptable scenario for Russia. WTF! You know who gets to deci...

Sun Mar 06, 2022 8:13 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

Buffer zone was needed for their protection and slow down potential enemy. There is no natural obstacle in the northern European plain. So putin should have been able to maintain an “operation human shield” against their will so he wouldn’t have a tantrum? Well as it is right now he invaded that “h...

Sun Mar 06, 2022 6:36 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Re: Russian Invasion of Ukraine - *Discussion* Thread

They lost the buffer zone. Look at the map. There are no natural obstacles between NATO borders all the way to Ural. Why does Russia need a "buffer zone"? Their old buffer zone was smaller, poorer countries who they subjugated and oppressed, who finally got their independence. NATO has no...

Sun Mar 06, 2022 5:48 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 6427
Views: 432637

### Russian Invasion of Ukraine - *Discussion* Thread

They lost the buffer zone. Look at the map. There are no natural obstacles between NATO borders all the way to Ural. So what!? If your previous acquaintances decide they’d like to be friends with someone else and not you then it’s on YOU to change your behaviour NOT on others to appease you lest yo...

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