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Search: Posts Made By: Downwind Lander
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27th Jul 2019, 15:05
Replies: 24
Views: 8,924
Posted By Downwind Lander

There have been three wild fires in England in...

There have been three wild fires in England in the last couple of weeks and, in my view, the need is high. They speak of the fire being "under control" which appears to be code for their being unable...
5th May 2019, 14:38
Replies: 22
Views: 13,483
Posted By Downwind Lander

I am pretty confident that I am right. It takes...

I am pretty confident that I am right. It takes type H or J - maybe E. I did some work when the French Air Force sat on their hands as Notre-Dame burned. They have some Canadairs (now Bombardier, I...
24th Apr 2019, 15:22
Replies: 24
Views: 8,924
Posted By Downwind Lander

In Britain, the Easter weekend was the hottest on...

In Britain, the Easter weekend was the hottest on record and there were seven bush fires between Wales, northern Ireland and the north of England.

One problem is that the fire authorities put out...
17th Apr 2019, 16:22
Replies: 24
Views: 8,924
Posted By Downwind Lander

There is for the Uk: the Association of British...

There is for the Uk: the Association of British Insurers.
16th Mar 2019, 20:42
Replies: 24
Views: 8,924
Posted By Downwind Lander

Oh, Yes and more than that. What is outrageous is...

Oh, Yes and more than that. What is outrageous is that you have really bad fires out there and the government have not bought as many MAFFS2 water bombing kits as they have C130s. They aren't that...
15th Mar 2019, 21:01
Replies: 24
Views: 8,924
Posted By Downwind Lander

There is a new opportunity for you guys; aerial...

There is a new opportunity for you guys; aerial firefighting. You may need to re-think valves, pipes etc. Get involved with fire retardant foam and the largest tanks the wings will handle with...
11th Mar 2019, 15:41
Replies: 5,127
Views: 10,277,634
Posted By Downwind Lander

Am I right that the original triplex concept (3...

Am I right that the original triplex concept (3 computers using different microprocessors, three different OSs, three different languages and code written by three different teams who don't...
11th Mar 2019, 15:15
Replies: 41
Views: 29,384
Posted By Downwind Lander

It's a well enough known phenomenon, but for you,...

It's a well enough known phenomenon, but for you, TehDehZeh:

https://www.rospa.com/home-safety/advice/general/facts-and-figures/

It is the basis for contending that it is safer to run public...
9th Mar 2019, 15:10
Replies: 41
Views: 29,384
Posted By Downwind Lander

The bottom line is that most accidents happen in...

The bottom line is that most accidents happen in the home. Ergo, this statistically unsupportable knee jerk reaction will probably increase the number of accidents.
24th Jan 2019, 15:31
Replies: 2,067
Views: 2,545,863
Posted By Downwind Lander

We are back in the familiar territory of an...

We are back in the familiar territory of an aircraft evaporating without trace.

This time, the area is in the middle of Europe. Tomnod is dead and the RAF have Reapers in Lincolnshire which are...
22nd Jan 2019, 15:51
Replies: 2,067
Views: 2,545,863
Posted By Downwind Lander

I sent Tomnod a tweet but I doubt they are still...

I sent Tomnod a tweet but I doubt they are still going.

RAF Waddington have Reapers which are a bit excessive but highly useful; they are always quick to miss an opportunity for good PR....
22nd Jan 2019, 15:25
Replies: 2,067
Views: 2,545,863
Posted By Downwind Lander

Does anyone know what happened to Tomnod, the...

Does anyone know what happened to Tomnod, the people who acquired satellite images and asked the community to examine them for tell tale signs of anything useful? (No sign at tomnod.com)

These...
17th Jul 2018, 15:43
Replies: 28
Views: 3,688
Posted By Downwind Lander

I guess it depends upon whether the authorities...

I guess it depends upon whether the authorities are aiming for satellites only or for people/space tourism as well.

Also, whether the Scaled Composites/SpaceShipOne approach will ultimately win...
13th Jul 2018, 15:09
Replies: 12
Views: 2,087
Posted By Downwind Lander

I wonder if Dook means that the elevator produces...

I wonder if Dook means that the elevator produces downforce (or upforce) whereas the tailplane produces lift (which is what you are saying, G, in slightly different words).
13th Jul 2018, 15:03
Replies: 24
Views: 5,262
Posted By Downwind Lander

What an inspired idea. We will need some steep...

What an inspired idea.
We will need some steep banking, actually, very steep banking, and an upward spiral to absorb the kinetic energy. Clearly a job for the proposed new 3rd runway at LHR.
...
Forum: Rotorheads
28th Jun 2018, 16:20
Replies: 112
Views: 52,213
Posted By Downwind Lander

. Fire fighting Interesting post from...

.
Fire fighting

Interesting post from Wildpilot above. If there is anyone who could assist in the UK's midlands with the current Saddleworth Moor fires, then I reckon they will be treated like...
5th Dec 2017, 14:46
Replies: 40
Views: 3,560
Posted By Downwind Lander

Very interesting PD. I see that the author was...

Very interesting PD. I see that the author was treated to an extended American working holiday under Operation Paperclip, presumably in 1946, when he wrote your book which he self published in 1951....
4th Dec 2017, 14:38
Replies: 40
Views: 3,560
Posted By Downwind Lander

Do you mean "Fluid Dynamic Drag" or is that a...

Do you mean "Fluid Dynamic Drag" or is that a completely different book?
1st Dec 2017, 14:51
Replies: 40
Views: 3,560
Posted By Downwind Lander

1. That's the thing - could it happen? maybe Yes,...

1. That's the thing - could it happen? maybe Yes, maybe No. At the moment, No, but - see below -

2. Yes, this is so and also there is a wing loading problem to solve, possibly both with a larger...
30th Nov 2017, 16:39
Replies: 40
Views: 3,560
Posted By Downwind Lander

Let me put it this way. If you compare the...

Let me put it this way.

If you compare the power requirements and the cruising speeds of Rogallo wing a/c and the Long EZ, there is a big discrepancy.

If you take a good look at these two, it...
30th Nov 2017, 12:48
Replies: 40
Views: 3,560
Posted By Downwind Lander

Don't get me wrong, G, the wing is an incredible...

Don't get me wrong, G, the wing is an incredible achievement - incorporating all control surfaces in one mathematically horrifically complex 3D shape. What i am saying is that it isn't efficient and...
29th Nov 2017, 16:43
Replies: 40
Views: 3,560
Posted By Downwind Lander

...and we all admire the fluids properties of the...

...and we all admire the fluids properties of the well buttered eel.


I take your point but the frontal area is low, if somewhat cluttered. The key to the Rogallo wing would be its coefficient of...
29th Nov 2017, 16:18
Replies: 40
Views: 3,560
Posted By Downwind Lander

... and of course, we all admire the fluids...

... and of course, we all admire the fluids properties of the well buttered eel.


I accept what you say but it also has a low frontal area, albeit cluttered, with a silly bit of streaming which...
29th Nov 2017, 14:20
Replies: 40
Views: 3,560
Posted By Downwind Lander

I did all that back in the 60s. You have...

I did all that back in the 60s.


You have given me much to think about. But what makes me think that it is an inefficient wing is a comparison of the engine power and top/cruising speeds of a P &...
28th Nov 2017, 14:48
Replies: 40
Views: 3,560
Posted By Downwind Lander

Well, you've guessed, Ghenghis. I can't...

Well, you've guessed, Ghenghis.

I can't find the image I was looking for; it looked like a French cathedral stained glass window. Here is a bread & butter one.

It doesn't need to be high wing;...
Showing results 1 to 25 of 145
 


 
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