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Search: Posts Made By: keith williams
Showing results 1 to 35 of 656
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Forum: Military Aviation
30th Mar 2024, 13:31
Replies: 10,325
Views: 4,608,973
Posted By keith williams

Regardless of what Ukraine does or does not do,...

Regardless of what Ukraine does or does not do, it is looking increasingly likely that the US is about to do to Ukraine, what it did to South Vietnam...Lose interst and leave them to their fate.
Forum: Military Aviation
17th Mar 2024, 12:36
Replies: 10,325
Views: 4,608,973
Posted By keith williams

ANOpax Either the designers are very stupid,...

ANOpax

Either the designers are very stupid, or they have given this matter much more thought than you or I have.

Which do you think is the more iikely?
Forum: Military Aviation
20th Feb 2024, 08:26
Replies: 10,325
Views: 4,608,973
Posted By keith williams

Admikar So if Putin wins this war and...

Admikar

So if Putin wins this war and Annexes the rest of ukraine, (as he has already done with the occupied areas) he will then have Poland, which is a member of NATO right next to Russia's...
Forum: Military Aviation
26th Jan 2024, 20:06
Replies: 1,217
Views: 415,621
Posted By keith williams

Looks like we need a thread about the LCS. Then...

Looks like we need a thread about the LCS. Then this thread can get back to the intended subject.
Forum: Military Aviation
16th Jan 2024, 12:10
Replies: 10,325
Views: 4,608,973
Posted By keith williams

Bit of a shortcut in the overall process. The...

Bit of a shortcut in the overall process. The victim ends up dead at home instead of dead in a ukrainian cornfield. Just cuts out a lot of the suffering.
Forum: Military Aviation
15th Jan 2024, 14:28
Replies: 75
Views: 20,683
Posted By keith williams

Because the crabs (two legged variety) run naval...

Because the crabs (two legged variety) run naval aviation these days and they don't like going to sea.
Forum: Military Aviation
15th Jan 2024, 08:33
Replies: 159
Views: 34,332
Posted By keith williams

Shortly after we deplyed to the South Atlantic in...

Shortly after we deplyed to the South Atlantic in 1981, we found that the shuttle had been stolen from the survival equipment section sewing machine when the ship was in refit, so we demanded a...
Forum: Military Aviation
1st Jan 2024, 09:27
Replies: 1,217
Views: 415,621
Posted By keith williams

Hopefully a Houthi missile will put a hole in the...

Hopefully a Houthi missile will put a hole in the Iranian frigate.
Forum: Military Aviation
10th Dec 2023, 18:41
Replies: 1,217
Views: 415,621
Posted By keith williams

Time to invent a drone-killing drone. Will be...

Time to invent a drone-killing drone. Will be more costly than a commercial toy, but much cheaper than a SAM.
Forum: Engineers & Technicians
6th Sep 2021, 10:27
Replies: 2
Views: 909
Posted By keith williams

If you go to this site you will fi d a fairly...

If you go to this site you will fi d a fairly detailed description.

www.bobjellison.com.ra5c

If that fails just do a search for RA5C vigilante and you will find the bob jellison site?
Forum: Questions
4th Sep 2021, 17:40
Replies: 2
Views: 1,213
Posted By keith williams

Google is your friend. Do an internet search for...

Google is your friend. Do an internet search for something like Is take off one or two words?

If you do you will find several answer, but basically.

it is a single word when used as a noun, and...
Forum: Airlines, Airports & Routes
19th May 2021, 15:13
Replies: 1,716
Views: 591,065
Posted By keith williams

sadly far too many people think that red means...

sadly far too many people think that red means stop, green means go and amber means go as fast as you can. How many people really need to go on holiday to an amber country? How many people really...
Forum: Military Aviation
5th May 2021, 16:26
Replies: 16
Views: 5,536
Posted By keith williams

All part of a cunning plan to bankrupt china by...

All part of a cunning plan to bankrupt china by getting to build copies of the F35.
Forum: Military Aviation
28th Apr 2021, 16:10
Replies: 56
Views: 29,035
Posted By keith williams

Three (crashes) out of three really is pretty...

Three (crashes) out of three really is pretty bad!

They should get the message and stop flying them.
Forum: Space Flight and Operations
22nd Apr 2021, 18:46
Replies: 4
Views: 862
Posted By keith williams

Better check all the door handles for novichok...

Better check all the door handles for novichok after the last on leaves. They have form!
Forum: Professional Pilot Training (includes ground studies)
2nd Sep 2020, 16:49
Replies: 4
Views: 1,310
Posted By keith williams

Performance Planning is all about minimising...

Performance Planning is all about minimising risk. This could be described as avoiding disappointment. S o a good general approach might be stated as, Be pessimistic and you will avoid...
Forum: Professional Pilot Training (includes ground studies)
21st Jun 2019, 14:21
Replies: 5
Views: 3,137
Posted By keith williams

Hmmmm. Sounds like KT1988 got banned and has...

Hmmmm.

Sounds like KT1988 got banned and has assumed a new name.

Cunning or what?
Forum: Professional Pilot Training (includes ground studies)
1st Jun 2019, 12:40
Replies: 1,315
Views: 918,272
Posted By keith williams

KT1988

Landing Distance (LD) is the distance that you get out of the graph (assuming you do it right).

Landing Distance Required (LDR) is the distance you get after applying the various factors to the...
Forum: Professional Pilot Training (includes ground studies)
19th May 2019, 20:20
Replies: 1,315
Views: 918,272
Posted By keith williams

Where did the 108 come from?

The total moment is given in inch lbs , so you must convert the 9 feet into inches.

​​​​​​​9 feet is 108 inches.
Forum: Professional Pilot Training (includes ground studies)
25th Apr 2019, 15:12
Replies: 1,315
Views: 918,272
Posted By keith williams

ISA lower than TAS T MSL

Blocked Pilot Probe, leaking or disconnected Pitot feed to IAS are all possible causes.
Forum: Space Flight and Operations
24th Feb 2019, 12:34
Replies: 469
Views: 328,134
Posted By keith williams

You are being very shortsighted. The Moon is...

You are being very shortsighted.

The Moon is a very dusty place. If people are going to live there they will need a washing machine.
Forum: Military Aviation
6th Feb 2019, 07:39
Replies: 27
Views: 8,302
Posted By keith williams

Quite right HP, my mistake. I've now corrected...

Quite right HP, my mistake. I've now corrected it.

I used to have a good memory, but these days I can't remember where I've put it.

​​​​​​​
Forum: Military Aviation
5th Feb 2019, 12:48
Replies: 27
Views: 8,302
Posted By keith williams

IIRC The Hover Stop is fixed at 82 degrees...

IIRC

The Hover Stop is fixed at 82 degrees relative to the engine centreline.

The engine centreline is set a 1.5 degrees nose up relative to the aircraft longitudinal axis.

The pitch...
Forum: Military Aviation
4th Feb 2019, 18:08
Replies: 27
Views: 8,302
Posted By keith williams

PDR1

Your explanation sounds convincing, but is it actually true?

The air initially has zero momentum in the fore-aft direction.

The fan draws in air thereby giving it some fore-aft momentum.

It...
Forum: Private Flying
5th Nov 2018, 19:44
Replies: 37
Views: 8,147
Posted By keith williams

PDR1 In your second diagram the aircraft is...

PDR1

In your second diagram the aircraft is climbing at constant speed and constant roc, so the forces must be in equilibrium. You show the thrust and drag as being in equilibrium, but we need to...
Forum: Professional Pilot Training (includes ground studies)
7th Oct 2018, 20:03
Replies: 1,315
Views: 918,272
Posted By keith williams

To solve any problem we need to begin by forming...

To solve any problem we need to begin by forming a clear picture of the situation.

In these two questions we are attempting to achieve a certain moment change by moving part of the load.

The...
Forum: Professional Pilot Training (includes ground studies)
30th Jun 2018, 14:48
Replies: 1,315
Views: 918,272
Posted By keith williams

answers to new questions

Question 1.
In a fully powered flying control system the cockpit controls are connected to the pilot valves. The pilot valves control the flow of pressurised fluid to and from the actuators, thereby...
Forum: Rumours & News
29th Mar 2018, 11:51
Replies: 20
Views: 13,780
Posted By keith williams

I have been robbed. A helicopter ran over...

I have been robbed.

A helicopter ran over my foot in 1974 and I did not get a mention in any tv news program or Internet forum.

I blame the fool who was in charge of the move, but as that...
Forum: Airlines, Airports & Routes
7th Oct 2017, 09:56
Replies: 1,195
Views: 1,002,418
Posted By keith williams

dboy, Your profile states: You...

dboy,

Your profile states:

You then state:

That attitude certainly does not reflect reality here on Earth.

When a large number of people are applying for a smaller number of...
Forum: Airlines, Airports & Routes
2nd Oct 2017, 13:16
Replies: 1,195
Views: 1,002,418
Posted By keith williams

I know that this view will not be at all popular...

I know that this view will not be at all popular but:

1. Monarch were close to collapse about a year ago and despite receiving a £165 million cash injection they have burned up the cash and have...
Forum: Professional Pilot Training (includes ground studies)
8th Sep 2017, 10:39
Replies: 26
Views: 11,113
Posted By keith williams

It is good to hear that you passed the exam...

It is good to hear that you passed the exam keeflyer, and your advice regarding using the examples and material on the graphs is absolutely correct.

But this stuff should be the absolute starting...
Forum: Military Aviation
24th Aug 2017, 09:54
Replies: 19
Views: 2,878
Posted By keith williams

This was previously discussed in the thread...

This was previously discussed in the thread below.
...
Forum: Professional Pilot Training (includes ground studies)
18th Aug 2017, 18:57
Replies: 1,315
Views: 918,272
Posted By keith williams

You must ensure that you use consistent units...

You must ensure that you use consistent units throughout the calculation. You have Newton, and metres, so you need to convert your 300 knots into metres per second. Hopefully your books have...
Forum: Professional Pilot Training (includes ground studies)
18th Aug 2017, 11:16
Replies: 1,315
Views: 918,272
Posted By keith williams

Sonbra, You have not provided many clues,...

Sonbra,

You have not provided many clues, but I suspect that the equation you require is the lift equation.

Lift equals Cl 1/2Rho Vsquared S.

If we keep Rho and S constant then to maintain...
Forum: Tech Log
17th Aug 2017, 13:30
Replies: 8
Views: 10,112
Posted By keith williams

If an aircraft is statically stable it will tend...

If an aircraft is statically stable it will tend to return to its original attitude following a disturbance.

If it then osciliates with decreasing amplitude it is both statically stable and...
Showing results 1 to 35 of 656
 
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