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Search: Posts Made By: DaveReidUK
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Forum: Tech Log
25th Nov 2012, 22:05
Replies: 147
Views: 30,345
Posted By DaveReidUK

That's gratifying to hear. And, given that...

That's gratifying to hear.

And, given that the offending posts have all been removed, we'll forget about the equally inappropriate term that you directed at those who had the temerity to point...
Forum: Tech Log
25th Nov 2012, 09:16
Replies: 147
Views: 30,345
Posted By DaveReidUK

Good - then you should take his advice. ...

Good - then you should take his advice.

Some might think that displaying a woeful grasp of basic mechanics would be enough, on its own, to discredit anyone's standing as a professional engineer,...
Forum: Tech Log
25th Nov 2012, 07:46
Replies: 147
Views: 30,345
Posted By DaveReidUK

Out of interest, is your solicitor also...

Out of interest, is your solicitor also recommending that you maintain your novel "thrust is momentum, it isn't a force" proposition that, frankly, wouldn't get you a pass in GCSE mechanics ?
Forum: Tech Log
24th Nov 2012, 17:43
Replies: 147
Views: 30,345
Posted By DaveReidUK

OK, I understand now - you don't consider thrust...

OK, I understand now - you don't consider thrust a force.

So presumably the thrust that's produced by the engines you design isn't capable of making the aircraft move.

Words fail me. :ugh:
Forum: Tech Log
24th Nov 2012, 17:09
Replies: 147
Views: 30,345
Posted By DaveReidUK

You're right, I did indeed say that. I've seen...

You're right, I did indeed say that. I've seen nothing in your subsequent posts to make me change my view.



Happy to help you recall:

Your post #43:


Your post #59:
Forum: Tech Log
24th Nov 2012, 12:02
Replies: 147
Views: 30,345
Posted By DaveReidUK

For the avoidance of doubt, I'd like to make it...

For the avoidance of doubt, I'd like to make it clear that it wasn't me who made that claim about you.

But you certainly made this one, when addressing me:



Remind me again, who exactly...
Forum: Tech Log
24th Nov 2012, 09:33
Replies: 147
Views: 30,345
Posted By DaveReidUK

Whew! Thanks for that - I was beginning to...

Whew!

Thanks for that - I was beginning to worry that when I did my aero engineering degree I must have missed a lecture where they explained that momentum was a force. :O
Forum: Tech Log
24th Nov 2012, 08:23
Replies: 147
Views: 30,345
Posted By DaveReidUK

Oh well, it's a damp Saturday and I have nothing...

Oh well, it's a damp Saturday and I have nothing else to do ...



I did, and it does.



It doesn't. Read it again.
Forum: Tech Log
24th Nov 2012, 07:24
Replies: 147
Views: 30,345
Posted By DaveReidUK

I said I wasn't going to argue with you any more,...

I said I wasn't going to argue with you any more, and I won't.

But that remark can't go unchallenged. I can't see any evidence of anyone deliberately misinterpreting your posts. We may not...
Forum: Tech Log
23rd Nov 2012, 20:19
Replies: 147
Views: 30,345
Posted By DaveReidUK

OK, this is where we came in, I give up. ...

OK, this is where we came in, I give up.



Well we can agree on something at least: the rest of us can't hope to match your grasp of aeronautics.
Forum: Tech Log
23rd Nov 2012, 20:02
Replies: 147
Views: 30,345
Posted By DaveReidUK

Newton's Second Law can be summarised as (F)orce...

Newton's Second Law can be summarised as (F)orce = (M)ass x (A)cceleration.

So in your glider example, pulling up into a climb (acceleration) is the result of a force with a vertical component...
Forum: Tech Log
23rd Nov 2012, 19:39
Replies: 147
Views: 30,345
Posted By DaveReidUK

I suggest you Google Newton's Second Law before...

I suggest you Google Newton's Second Law before you dig yourself in an even deeper hole.
Forum: Tech Log
23rd Nov 2012, 17:04
Replies: 147
Views: 30,345
Posted By DaveReidUK

Thrust and momentum are completely different...

Thrust and momentum are completely different quantities, with different units/dimensions.

A glider usually has momentum, but has no thrust (unless it has a pop-up sustainer or SL engine).
...
Forum: Tech Log
23rd Nov 2012, 08:27
Replies: 147
Views: 30,345
Posted By DaveReidUK

You were doing OK, up until that part :*

You were doing OK, up until that part :*
Forum: Tech Log
22nd Nov 2012, 22:27
Replies: 147
Views: 30,345
Posted By DaveReidUK

Inertia is zero gravity space is no different...

Inertia is zero gravity space is no different from inertia anywhere else. It's measured in kg. Nothing to do with V or Vē.
Forum: Tech Log
22nd Nov 2012, 08:00
Replies: 147
Views: 30,345
Posted By DaveReidUK

Inertia is a function of mass, not weight. ...

Inertia is a function of mass, not weight.

On its way to the Moon, Apollo had a lot of inertia but weighed nothing at one point. :O
Forum: Tech Log
21st Nov 2012, 15:25
Replies: 147
Views: 30,345
Posted By DaveReidUK

Related to mass. The same anywhere in the...

Related to mass. The same anywhere in the universe!
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