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Search: Posts Made By: chris weston
Showing results 1 to 35 of 112
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Forum: Military Aviation
18th Jun 2018, 11:19
Replies: 98
Views: 11,928
Posted By chris weston

Squabs

I thought squabs were found in cars......
Forum: Rumours & News
14th Mar 2014, 21:45
Replies: 11,831
Views: 24,355,617
Posted By chris weston

GMM 3521

Yes

At a given point in time the fuel mass spec profiles are likely to be different and time/date unique unless they're sharing refinery batch output and simply using differently badged fueling...
Forum: Rumours & News
14th Mar 2014, 21:24
Replies: 11,831
Views: 24,355,617
Posted By chris weston

etudiant 3335

Agreed

Jet fuel v Ship Diesel have utterly different Mass Spec signatures screw the Mr Av similarities

With the right kit, the work of a moment to differentiate

Just a chemist
Forum: Tech Log
10th Oct 2013, 12:05
Replies: 71
Views: 13,532
Posted By chris weston

Do the maths. The ERP from the on board radar is...

Do the maths. The ERP from the on board radar is miniscule. Its voodoo.
Forum: Tech Log
22nd Jan 2013, 20:15
Replies: 1,100
Views: 263,258
Posted By chris weston

Dozy, like most things chemical .... it depends. ...

Dozy, like most things chemical .... it depends.

I've spent a lifetime with Group 1 metals and showing their reaction with water to students.

If gum's pail is big enough and full of tap water...
Forum: Tech Log
24th Nov 2012, 20:27
Replies: 148
Views: 116,484
Posted By chris weston

Bloodhound SSC

I'm fascinated by this thread too chaps, addicted to is a better way of putting it.

I know it's not Concorde but how will Bloodhound SSC be addressing these problems do we think?

1,000 mph at 0...
Forum: Tech Log
13th Oct 2012, 20:54
Replies: 41
Views: 8,845
Posted By chris weston

cwatters 26 Agree! Make it diesel electric...

cwatters 26
Agree!
Make it diesel electric would be my guess.
I know, do the sums.
CW
Forum: Tech Log
4th Oct 2012, 20:00
Replies: 17
Views: 8,517
Posted By chris weston

Approve! To my shame I've never worked one...

Approve!

To my shame I've never worked one of those.

CW

[G2DVP]
Forum: Tech Log
30th Aug 2012, 21:56
Replies: 388
Views: 100,119
Posted By chris weston

121 Sir Flying is a matter of surfing on a...

121 Sir

Flying is a matter of surfing on a mixture of gases, most of the rest is simply managing the drag using tedious mathematics.

If you rotate a rigid cylinder as suggested there will be...
Forum: Tech Log
6th Jul 2012, 22:40
Replies: 1,454
Views: 254,000
Posted By chris weston

Tex, absolutely agree. Who was it said...

Tex, absolutely agree.

Who was it said "what's gonna kill me?"

I know, that was on take off, but its still pdg advice.
Forum: Tech Log
12th Jun 2012, 15:59
Replies: 19
Views: 2,983
Posted By chris weston

Thanks guys, told you you'd get a better answer...

Thanks guys, told you you'd get a better answer elsewhere!
CW
Forum: Tech Log
12th Jun 2012, 15:32
Replies: 19
Views: 2,983
Posted By chris weston

Others more knowledgeable than me will no doubt...

Others more knowledgeable than me will no doubt give a better answer but my understanding was that it was to keep the mixture stoichiometric i.e. in the correct ratio, as the partial pressure of...
Forum: Tech Log
1st May 2012, 22:54
Replies: 1,550
Views: 304,095
Posted By chris weston

All pilots should be competent at hand flying...

All pilots should be competent at hand flying because your passengers deserve this.

Bubbers, 289 absolutely agree.

But ..... they don't deserve this they need this. The distinction between the...
Forum: Tech Log
23rd Mar 2012, 12:04
Replies: 12
Views: 5,082
Posted By chris weston

I've used this analogy for decades without...

I've used this analogy for decades without difficulty, students normally find that it helps when doing basic cell theory, Nernst, E cell v E Standard etc.

But, as explained above and like many...
Forum: Tech Log
19th Mar 2012, 22:36
Replies: 1,353
Views: 300,466
Posted By chris weston

All, I have read all and I mean all the...

All,

I have read all and I mean all the pages and grow dizzy with the content but, with no great confidence, do I recall correctly reference at some point by someone no doubt better informed than...
Forum: Tech Log
10th Mar 2012, 21:12
Replies: 251
Views: 63,724
Posted By chris weston

I'm quite happy with that summary gums, seems...

I'm quite happy with that summary gums, seems entirely fair to me.

Yes I've read every post.

Yes I'm SLF.
Forum: Tech Log
28th Jan 2012, 19:58
Replies: 38
Views: 7,890
Posted By chris weston

All, I am no aerodynamicist, it is not my...

All,

I am no aerodynamicist, it is not my field - I am a mere chemist.

In truth I also lack the mathematical skills with which properly to support or to disprove my contention.

Mr Optimist...
Forum: Tech Log
28th Jan 2012, 13:57
Replies: 38
Views: 7,890
Posted By chris weston

OK, head above parapet! Lift comes primarily...

OK, head above parapet!

Lift comes primarily from more air molecules hitting the wing below it than above it per unit time.

Hence the behaviour of sheets of 8x4 or upside down flight or flat...
Forum: Tech Log
15th Jan 2012, 18:38
Replies: 155
Views: 42,059
Posted By chris weston

Slippery Pete, At no stage have I referred...

Slippery Pete,

At no stage have I referred to flame front speed or indeed to "better" burning in this thread, I have never referred solely to piston engines.

I have carefully not considered the...
Forum: Tech Log
9th Jan 2012, 21:22
Replies: 155
Views: 42,059
Posted By chris weston

Crabman, Thank you, nice idea. But...

Crabman,

Thank you, nice idea.

But .....don't forget the importance of the little guys in chemical bonding. The 787 is in trouble if we do.

CW
Forum: Tech Log
8th Jan 2012, 17:30
Replies: 155
Views: 42,059
Posted By chris weston

Crabman 137 Crabman; I think Oggers...

Crabman 137


Crabman;

I think Oggers and Turbine D et al are right here, I suggest that Slippery P is wrong.

It's true that compression will elevate the temperature of gas phase molecules...
Forum: Tech Log
6th Jan 2012, 20:28
Replies: 155
Views: 42,059
Posted By chris weston

Chu Chu, Under high compression you can burn...

Chu Chu,

Under high compression you can burn more fuel in a given amount of time as high compression crams in more oxygen molecules et al and you simply release more energy per unit time from the...
Forum: Aviation History and Nostalgia
30th Dec 2011, 17:15
Replies: 129
Views: 31,771
Posted By chris weston

Excellent thread chaps and as much fun as the...

Excellent thread chaps and as much fun as the Concorde one.

Well done all!

CW
Forum: Tech Log
19th Dec 2011, 18:29
Replies: 155
Views: 42,059
Posted By chris weston

Spot on Oggers At high compression the rate...

Spot on Oggers

At high compression the rate of the combustion reaction increases as the effective concentration of the fuel/air mix increases.

This happens because there is now a greater...
Forum: Tech Log
28th Nov 2011, 11:11
Replies: 155
Views: 42,059
Posted By chris weston

Barit, sir. 81 Nicely put. Agree. CW

Barit, sir.
81
Nicely put.
Agree.
CW
Forum: Tech Log
24th Nov 2011, 14:53
Replies: 155
Views: 42,059
Posted By chris weston

Slippery I suspect trolling here so more...

Slippery


I suspect trolling here so more fool me but I will have one final attempt and share some simple physics with you.


pV = nRT

so
Forum: Tech Log
22nd Nov 2011, 11:17
Replies: 155
Views: 42,059
Posted By chris weston

Power v heat waste losses

Slippery Pete, sir,

Saying that "the main reason for thermodynamic efficiency increase in high compression is reduced heat waste to the fluid" is, in my view, wrong. It is the "main reason" aspect...
Forum: Tech Log
21st Nov 2011, 21:47
Replies: 155
Views: 42,059
Posted By chris weston

A ram jet has sufficient compression without the...

A ram jet has sufficient compression without the need for a fan assembly.

Go sub routine velocity dependence!

Why do we compress - to release more energy to do useful work per unit time within...
Forum: Tech Log
20th Nov 2011, 20:14
Replies: 155
Views: 42,059
Posted By chris weston

Thermodynamics

Gentlemen, as a mere physical chemist and at the risk of causing more confusion, may I suggest we try to stick to what is to me the fundamental process here?

The more we compress the air the more...
Forum: Tech Log
6th Aug 2011, 20:24
Replies: 16
Views: 2,701
Posted By chris weston

Brilliant. Thanks for sharing. CW

Brilliant.

Thanks for sharing.

CW
Forum: Tech Log
7th Jul 2011, 15:55
Replies: 6
Views: 7,329
Posted By chris weston

Interesting. Graphitic carbon sublimes at...

Interesting.

Graphitic carbon sublimes at about 4000K and 101.3 kPa (ie 1 Atmosphere/ 1 Bar)

No liquid phase = no welding together on cooling I presume.

I doubt the carbon brakes actually...
Forum: Tech Log
17th Jun 2011, 12:18
Replies: 20
Views: 5,415
Posted By chris weston

Using mobiles in lessons is not permitted where I...

Using mobiles in lessons is not permitted where I work. Of course the little s**s do - txt, Facebook, you name it.

So you confiscate it (and return it at the end of that session) when you do this...
Forum: Tech Log
10th Jun 2011, 18:23
Replies: 3,435
Views: 1,674,106
Posted By chris weston

Steed 1581 Agree Spurious accuracy does...

Steed

1581 Agree

Spurious accuracy does not make one data set innately superior to another

"All time data here rounded to x dp" could be held to be a clumsy use of English and "around" could...
Forum: Tech Log
9th Jun 2011, 22:57
Replies: 3,435
Views: 1,674,106
Posted By chris weston

Yep 1561 don't work for me either But...

Yep

1561 don't work for me either

But I'd like to see it, is there another way?
Forum: Tech Log
7th Jun 2011, 20:40
Replies: 2,070
Views: 615,954
Posted By chris weston

What do you feel when you're descending in an...

What do you feel when you're descending in an elevator?

This question is not fit for purpose unless a time frame is defined.

In a true equilibrium state you will feel nothing.

Rate of change...
Showing results 1 to 35 of 112
 
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