Engineering/Technical Discussions

New Topic

40 topics

Topics

Replies

Views

Last post

TCAS - To Avoid or Not?

Last post by TheGreenGoblin « Tue Jun 30, 2020 9:40 pm
Replies: 1
by llondel » Tue Jun 30, 2020 5:16 am

First post

Interesting article in The Register today about how TCAS could be vulnerable to spoofing, so you'd be flying along and get an alert when there was...

Last post

Creating ghosts in the machine. I suspect it would be relatively easy to do.

Interesting article, paper and thread.

1 Replies

67 Views

Last post by TheGreenGoblin
Tue Jun 30, 2020 9:40 pm
Is hydrogen the way forward - ZeroAvia

Last post by G-CPTN « Sat Jun 27, 2020 7:50 pm
Replies: 19
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

Electric plane's 'milestone' first UK test flight at Cranfield.

19 Replies

892 Views

Last post by G-CPTN
Sat Jun 27, 2020 7:50 pm
Great engineering companies that are longer extant.

Last post by llondel « Tue Jun 16, 2020 5:47 pm
Replies: 9
by TheGreenGoblin » Mon Jun 15, 2020 9:23 am

First post

English Electric..

The English Electric Company Limited was a British industrial manufacturer formed after the armistice of World War I by...

Last post

I used to work for EMI, although that was after they stuck a Thorn in it. Now part of Thales, I believe. Taught me that I didn't want to work for a...

9 Replies

180 Views

Last post by llondel
Tue Jun 16, 2020 5:47 pm
Missiles.

Last post by TheGreenGoblin « Sun Jun 07, 2020 5:58 am
Replies: 46
by AtomKraft » Sat Mar 03, 2018 9:29 pm
1

2

3
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

Shorts was long on marketing success with this dismal failure on the battlefield. I remember the words of somebody who had used the Blowpipe in...
46 Replies

981 Views

Last post by TheGreenGoblin
Sun Jun 07, 2020 5:58 am
The Rocket fuel injector! A glorified shower head?

Last post by TheGreenGoblin « Sat May 23, 2020 5:33 am

by TheGreenGoblin » Sat May 23, 2020 5:33 am

Definitely not, but more the work of a thermodynamicist's genius and a highly complex technical area focussed to ensure optimal mixing and...

0 Replies

246 Views

Last post by TheGreenGoblin
Sat May 23, 2020 5:33 am
When software designers get it fundamentally wrong.

Last post by TheGreenGoblin « Mon Apr 13, 2020 6:26 am
Replies: 19
by TheGreenGoblin » Fri Apr 10, 2020 2:28 pm

First post

Yesterday I was perusing some notes I had made some years ago as part of a conference about software used to automatically test software based...

Last post

I suppose the first space/aviation software overflow issue that really made it into the headlines was the Apollo 11's Infamous Landing Error Code...

19 Replies

609 Views

Last post by TheGreenGoblin
Mon Apr 13, 2020 6:26 am
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

695 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

831 Views

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

971 Views

Last post by TheGreenGoblin
Mon Feb 10, 2020 7:11 pm
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

1254 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
1

2
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

907 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

1530 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

1018 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
1

2

3

4

5
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

2804 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

1309 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

1922 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

1350 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

1668 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

2170 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

2383 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
1

2
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

486 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

227 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

235 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

95 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

193 Views

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

New Topic

40 topics

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum