Engineering/Technical Discussions

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Last post

Interesting map projection

Last post by sidevalve « Mon Mar 02, 2020 7:40 pm
Replies: 14
by TheGreenGoblin » Sun Mar 01, 2020 6:57 pm

First post

Japanese architect Hajime Narukawa claims to have tackled a centuries-old problem - how to draw an oblate spheroid Earth on a flat plane.

He claims...

Last post

Here's a gif that contrasts the size of Australia with other regions..

14 Replies

247 Views

Last post by sidevalve
Mon Mar 02, 2020 7:40 pm
New Airbus proposal

Last post by barkingmad « Fri Feb 14, 2020 5:02 pm
Replies: 17
by Boac » Tue Feb 11, 2020 10:06 am

First post

The AB blended wing project

EQfJKDeWkAA0TX2.jpg

is indeed 'futuristic', but leaves me wondering what the airflow into the engines will be like at...

Last post

GG’s post # 9 has me very concerned. I cannot recall doing anything “splenetically”, ever, let alone over my aIrborne drinks?

Is this behaviour,...

17 Replies

401 Views

Last post by barkingmad
Fri Feb 14, 2020 5:02 pm
Missiles.

Last post by TheGreenGoblin « Thu Feb 13, 2020 5:43 am
Replies: 22
by AtomKraft » Sat Mar 03, 2018 9:29 pm
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First post

Always a tricky subject, for obvious reasons, yet fascinating for others.

The SeaSlug was a favourite, but hard to find footage.

Anyways, to top...

Last post

Project Pluto.

What has been learned, cannot easily be unlearned. The Russkis are romoured to be trying this, or a variant of, again.

Perhaps...
22 Replies

653 Views

Last post by TheGreenGoblin
Thu Feb 13, 2020 5:43 am
Great aeronautical engineers...

Last post by TheGreenGoblin « Mon Feb 10, 2020 7:11 pm
Replies: 8
by TheGreenGoblin » Fri Jan 03, 2020 6:36 pm

First post

To my shame I had not heard of Alexander Kartveli (Aleksandre Kartvelishvili) until this week. Reading it about him it is clear that he should be up...

Last post

A great Guy, Kartavelli.

But remember, half the 105 fleet are still in Vietnam....that's 350 jets.
I'm reading 'Not much of an engineer' by Mr....

8 Replies

534 Views

Last post by TheGreenGoblin
Mon Feb 10, 2020 7:11 pm
Is hydrogen the way forward - ZeroAvia

Last post by TheGreenGoblin « Mon Feb 10, 2020 11:29 am
Replies: 12
by TheGreenGoblin » Fri Jan 31, 2020 2:29 pm

First post

ZeroAvia Bets On Hydrogen For Electric Air Travel

Zeroavia

Pro's and con's...

Last post

Cutting to the detail, it will have two supercooled 28 tonne liquid hydrogen tanks. Now how is he going to get the liquid hydrogen? How many ports...

12 Replies

394 Views

Last post by TheGreenGoblin
Mon Feb 10, 2020 11:29 am
Wind Turbine De-Icing.

Last post by barkingmad « Sat Feb 08, 2020 4:55 pm
Replies: 12
by barkingmad » Mon Dec 02, 2019 2:17 pm

First post

December UK and freezing fog with a breeze is forecast for 03/12.

Does anyone know how the wind turbine ‘wings’ cope with icing conditions or do the...

Last post

What happens to all the old wind turbines?

Well hopefully that answers that question?

12 Replies

824 Views

Last post by barkingmad
Sat Feb 08, 2020 4:55 pm
777X Flies!

Last post by Capetonian « Mon Jan 27, 2020 7:04 pm
Replies: 25
by PHXPhlyer » Sun Jan 26, 2020 12:49 am
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First post

Interesting stuff about folding wing-tips

PP

Last post

The more complex something is, the more likely it is to go wrong, and the greater the likelihood that those in charge won't be able to resolve the...
25 Replies

475 Views

Last post by Capetonian
Mon Jan 27, 2020 7:04 pm
Rolls Royce Problems

Last post by barkingmad « Thu Jan 23, 2020 9:48 am
Replies: 6
by ian16th » Fri Nov 08, 2019 11:59 am

First post

A billion here and a billion there adds up.

We will soon be talking about serious money!

Last post

I didn’t realise these new razor blades had been in development this long;

‘Twud make me wonder if there have been significant problems occurring...

6 Replies

1106 Views

Last post by barkingmad
Thu Jan 23, 2020 9:48 am
The Loo of the future in Aviation.

Last post by ExSp33db1rd « Wed Dec 18, 2019 7:55 am
Replies: 3
by ian16th » Tue Dec 17, 2019 1:23 pm

First post

Just think of the aviation applications!

A must have for wide-body a/c on long haul flights.

An Elsan version for those far flung parts of...

Last post

Aircraft should have a number of standing only cubicles,

Bristol Britannia 312 had a small cubicle Gents. Toilet, i.e. only a urinal, no lavatory...

3 Replies

590 Views

Last post by ExSp33db1rd
Wed Dec 18, 2019 7:55 am
Boeing in yet another technical pickle!

Last post by Rwy in Sight « Thu Dec 12, 2019 5:20 am
Replies: 80
by TheGreenGoblin » Mon Sep 30, 2019 9:30 am
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First post

A pickle fork to be exact

The FAA has ordered operators of some of the hard-working fleet of Boeing 737NGs to conduct inspections for cracks in a...

Last post

Few months ago I would have dismissed your point barkingmad believing in robust procedures. Today it is food for thought.
80 Replies

2359 Views

Last post by Rwy in Sight
Thu Dec 12, 2019 5:20 am
RR Trent 1000 Ten engine dramas

Last post by TheGreenGoblin « Tue Nov 19, 2019 4:44 pm
Replies: 3
by Alisoncc » Mon Nov 18, 2019 1:51 am

First post

Air NZ cancels dozens of Australian flights over Dreamliner engine woes

Air New Zealand is cancelling dozens of international flights in and out...

Last post

Rolls Royce response to the issues

3 Replies

888 Views

Last post by TheGreenGoblin
Tue Nov 19, 2019 4:44 pm
Air Force One

Last post by Ex-Ascot « Mon Nov 18, 2019 1:26 pm
Replies: 16
by Wodrick » Sat Sep 28, 2019 10:36 pm

First post

There was a program on UK C5 a couple of nights ago Secrets of AF1

It was said that AF1 is always accompanied by a backup and a command center....

Last post

Perhaps the UK could sell the septics the Blackburn Beverley technology. Wherein engine oil is sprayed continuously on the outside of the engine...

16 Replies

1491 Views

Last post by Ex-Ascot
Mon Nov 18, 2019 1:26 pm
Commercial aircraft at air shows

Last post by TheGreenGoblin « Sun Nov 17, 2019 1:33 pm
Replies: 2
by llondel » Mon Nov 11, 2019 11:23 pm

First post

Someone linked me to a video on FB of an A380 landing about 20 seconds after a preceding aircraft (A330?) started its take off roll. It seems to be...

Last post

I couldn't help myself. I had to look it up.

A30 take off numbers.JPG

A380 landing numbers.JPG

A380 800

5000 ft seems to be the shortest a...

2 Replies

932 Views

Last post by TheGreenGoblin
Sun Nov 17, 2019 1:33 pm
Anybody for hypergolic fuels, C, T or Z-Stoff or anything to do with rockets at all?

Last post by TheGreenGoblin « Sat Oct 19, 2019 6:08 pm
Replies: 7
by TheGreenGoblin » Wed Oct 16, 2019 5:22 pm

First post

Since I was a young boy I have always been fascinated with things that go bang, like my uncle before me who managed to blow his thumb off in this...

Last post

......and the Vickers Valiant

All the better to protect the aircraft from the nuclear flash.

I remember reading somewhere that a US spy aircraft...

7 Replies

1240 Views

Last post by TheGreenGoblin
Sat Oct 19, 2019 6:08 pm
Lorentz question

Last post by TheGreenGoblin « Mon Sep 16, 2019 9:19 pm
Replies: 12
by Slasher » Thu Sep 12, 2019 12:42 am

First post

Sitting around scratching my nuts recently I was idly toying with those equations (in concert with Jimmy Maxwell's) and wondered: is it possible to...

Last post

While Captain Slasher sets up ever more fiendish failure scenarios to test his trainee pilots' mettle in the simulator, I noticed this interesting...

12 Replies

1737 Views

Last post by TheGreenGoblin
Mon Sep 16, 2019 9:19 pm
Scary software problem for Boeing

Last post by Capetonian « Fri Aug 09, 2019 8:12 am
Replies: 2
by ricardian » Fri Aug 09, 2019 6:33 am

First post

Boeing's software code - security lapses

Last post

Just like the Titanic was unsinkable.

2 Replies

1953 Views

Last post by Capetonian
Fri Aug 09, 2019 8:12 am
Electric aeroplanes

Last post by Slasher « Thu May 02, 2019 6:22 am
Replies: 25
by Alisoncc » Thu Apr 25, 2019 5:48 am
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First post

Just been reading some journalistic bumpf about electric aeroplanes. Nothing of any technical value, but the author seemed to intimate that we would...

Last post

This looks a bit hopeful! :)
25 Replies

457 Views

Last post by Slasher
Thu May 02, 2019 6:22 am
FOD - Foreign Objects and Debris

Last post by Krystal n Chips « Thu Apr 25, 2019 6:46 am
Replies: 9
by Alisoncc » Sun Apr 21, 2019 7:32 am

First post

'I never plan to fly on it': Boeing workers blow whistle on 787 plant

When Boeing broke ground on its new factory near Charleston in 2009, the...

Last post

Cessna Citations had a well deserved reputation for slack quality control at the build factory at Wichita, first maintenance check after build...

9 Replies

220 Views

Last post by Krystal n Chips
Thu Apr 25, 2019 6:46 am
Dag Hammarskjöld - DC6 crash

Last post by ExSp33db1rd « Tue Apr 09, 2019 11:54 pm
Replies: 7
by Alisoncc » Sat Mar 09, 2019 1:46 pm

First post

One of those interminable Air Crash Investigation episodes on the box. This one relating to the death of Dag Hammarskjöld in September 1961. They go...

Last post

Bombay ! Bombay ! this is Delhi .... shut up Bombay.

7 Replies

231 Views

Last post by ExSp33db1rd
Tue Apr 09, 2019 11:54 pm
Is this going to be a winner?

Last post by G-CPTN « Mon Apr 08, 2019 11:52 am
Replies: 1
by ian16th » Mon Apr 08, 2019 11:05 am

First post

Reaction Engines Pre-Cooler Passes Mach 3.3 Test

Last post

Not if this is their website:-

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your...

1 Replies

90 Views

Last post by G-CPTN
Mon Apr 08, 2019 11:52 am
Engine Producion

Last post by ian16th « Sun Feb 10, 2019 7:45 am
Replies: 3
by ian16th » Thu Feb 07, 2019 12:53 pm

First post

“At least nine countries can make nuclear bombs, but just two—the U.S. and UK—can make single-crystal turbine blades for modern aeroengines.”

Last post

“At least nine countries can make nuclear bombs, but just two—the U.S. and UK—can make single-crystal turbine blades for modern aeroengines.”...

3 Replies

189 Views

Last post by ian16th
Sun Feb 10, 2019 7:45 am
Quantum Radar

Last post by Slasher « Thu Dec 13, 2018 3:31 pm
Replies: 1
by Cacophonix » Tue Nov 06, 2018 12:25 pm

First post

HUHAI, China—A potentially breakthrough quantum radar prototype is making a debut appearance at the Zhuhai Airshow.

In displaying the unique device,...

Last post

Thought I'd throw this into the mix:

1 Replies

295 Views

Last post by Slasher
Thu Dec 13, 2018 3:31 pm
New way of producing jet fuel

Last post by unifoxos « Wed Oct 03, 2018 9:18 am
Replies: 1
by Mrs Ex-Ascot » Wed Oct 03, 2018 7:00 am

First post

This is a very interesting experiment; Virgin is going to fly a 747 across the Atlantic using fuel made from recycled carbon emissions.

From the...

Last post

It takes these waste, carbon-rich gases to first make ethanol. The ethanol can be used for a range of low carbon products, including jet fuel.

And...

1 Replies

199 Views

Last post by unifoxos
Wed Oct 03, 2018 9:18 am
NASA’s new space taxis

Last post by Wilco « Tue Aug 28, 2018 10:56 pm

by Wilco » Tue Aug 28, 2018 10:56 pm

0 Replies

182 Views

Last post by Wilco
Tue Aug 28, 2018 10:56 pm
Hyper Loop anyone?

Last post by boing « Sat Aug 11, 2018 11:48 pm
Replies: 1
by Ibbie » Sat Aug 11, 2018 9:41 am

First post

Seems we are getting the Loop in Spain.

Last post

via electric propulsion through a low-pressure tube.

Is the pressure low enough that the vehicle itself will need to be pressurised?

.

1 Replies

171 Views

Last post by boing
Sat Aug 11, 2018 11:48 pm

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