PPRuNe Forums - Search Results
PPRuNe Forums

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Wikiposts
Today's Posts
Search
Vendor Directory
 
Page 1 of 2
1
2
Search: Posts Made By: Robin Clark
Showing results 1 to 35 of 51
Search took 0.00 seconds.
Forum: Rumours & News
7th May 2014, 14:44
Replies: 11,831
Views: 24,156,192
Posted By Robin Clark

BFO and Doppler........

So this is the updated chart , a bit less cluttered , showing the original BFO curve in blue , and with it a brown line illustrating how the values can change when the satellite motion is removed...
Forum: Rumours & News
5th May 2014, 20:26
Replies: 11,831
Views: 24,156,192
Posted By Robin Clark

Pingology...

I have made attempted to account for all motion between the aircraft and the satellite..
The Inmarsat 3F1 was moving very slowly westward during the whole flight , this was not enough to...
Forum: Rumours & News
4th May 2014, 23:18
Replies: 11,831
Views: 24,156,192
Posted By Robin Clark

Pingology....

Further to my #10413 .......did some trig. and found that the satellite should have been on a bearing of 73.17 degrees to port as MH370 was on climbout ........so in fact they were flying partly...
Forum: Rumours & News
30th Apr 2014, 07:39
Replies: 11,831
Views: 24,156,192
Posted By Robin Clark

Pingology.........

The more I look at the Inmarsat BFO chart the more it seems to be wrong...........almost as if the function is inverted , and the higher values towards the top of the chart are when the satellite and...
Forum: Rumours & News
31st Mar 2014, 21:15
Replies: 11,831
Views: 24,156,192
Posted By Robin Clark

Ping timing...

Although the timing of the last few pings does support a relatively straight line flight , surely it is not the only solution ...????....... The last four complete pings only really show that the...
Forum: Rumours & News
28th Mar 2014, 11:58
Replies: 11,831
Views: 24,156,192
Posted By Robin Clark

Ping Data

.....until debris is found to confirm the straight line flight suspected , the ping data may still support the possiblilty that the plane was flying large orbits , about 50 minutes each , south of...
Forum: Rumours & News
24th Mar 2014, 21:08
Replies: 11,831
Views: 24,156,192
Posted By Robin Clark

Hamster3null

........nice info on the satellite from MM43 and the others . .........can I just add that the system is not nearly as symmetrical as you might think..the earth is not a sphere and has an equatorial...
Forum: Rotorheads
18th Jul 2011, 12:12
Replies: 5,672
Views: 4,589,665
Posted By Robin Clark

The Shadow

whoateallthepies.....

....in studying the photo carefully it is the shadow of the next blade..... which disappears off screen to the right.......which is cast on the ground.....
..I do agree that...
Forum: Military Aviation
17th Jul 2011, 21:43
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Various

..congrats to all the campaigners , good outcome.....

..for the sake of completeness there are a couple of observations I would like to put on record before the thread is closed....

...there...
Forum: Military Aviation
28th Jun 2011, 09:03
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Track........

Walt...
you are making the same mistake that Mitchell makes in the Boeing report.....
...from V813 to the Real lighthouse is a bearing of 19.78 degrees true , plus the variation for your sums.....
Forum: Military Aviation
27th Jun 2011, 22:57
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Various.....

The Switches...Are we entirely sure that the switch shown in the photo is actually the power switch for the Tans alone.??????????......it is an appendage piggy-backed to the Tans and extends across...
Forum: Military Aviation
25th Mar 2011, 21:54
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Time and motion

Tuc.
I thought that the time difference between the Trimble and Supertans was understood and thought to be insignificant........??????.......
..the gps unit has its own time clock , fed from the...
Forum: Military Aviation
3rd Mar 2011, 09:53
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Flashgun tests...

I now realise that I neglected to mention ..... that my flashgun tests were done at mid-day .....................at the time of the crash , the sun was 29.6 degrees above the horizon , which equates...
Forum: Military Aviation
23rd Feb 2011, 12:51
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

spreadsheet---cameras

guys......in response to PM's I have expanded the guide to my speed/time/distance spreadsheet , hopefully making it easier to understand........link is here......
Forum: Military Aviation
10th Dec 2010, 19:07
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Various responses

Just a reminder as per my post 6641 , page 333 , the only relevant met.information available to the crew apon which to base a choice of route were the TAF and METAR for Machrihanish , ten nautical...
Forum: Military Aviation
20th Oct 2010, 12:45
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Yet more on maps......

Boac ,Dalek and others.....
Guys............. I understand entirely that they may normally only have used the Supertans as a rough guide , there have been several quotes about choosing a place with...
Forum: Military Aviation
11th Oct 2010, 13:13
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

More on Maps........

I have always had a gut feeling that navigation accuracy played a big part in the crash , whatever other problems there were with the Chinook..........

The waypoint 'A' position has always...
Forum: Military Aviation
28th Sep 2010, 14:25
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

That Boeing report and more on speeds.....

The Boeing report by James Mitchell is mentioned quite often and it is a useful guide , but study it with caution as it does contain errors.....
.............perhaps the most obvious is his lack of...
Forum: Military Aviation
20th Sep 2010, 15:27
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

more on time distance and speed......

..in the Excel spreadsheet below the fatal route is split into four legs...
http://gneiss.dyndns.info/chinookspread.bmp


...and allows one to adjust the speed for each leg....the point being...
Forum: Military Aviation
13th Sep 2010, 19:09
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

dalek , your 6738,6775,6796 ..... the...

dalek , your 6738,6775,6796

..... the overall accuracy of the Stans was nothing like as good as you surmise , the Racal report only tells half of the story........
Although the GPS and Doppler...
Forum: Military Aviation
31st Aug 2010, 18:03
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

JP ...I find that I must take issue with your...

JP ...I find that I must take issue with your 6770......although I agree with you that they were off course and heading for high ground...............I think that the Foghorn confusion is unlikely to...
Forum: Military Aviation
1st Aug 2010, 22:20
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Weather.........

BEagle...

I think this "often used" quote is actually someone's interpretation of the TAF for Machrihanish which really said.......



..there was a very similar actual from Machrihanish as...
Forum: Military Aviation
22nd Jul 2010, 12:17
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

More on maps.......

..in ACM Day's slides which he presented to the HOL....one of the mistakes he makes is assuming the OS grid on a map of the Mull is aligned with true north......(slides 25,25a,25b)
..this is a...
Forum: Military Aviation
22nd Jul 2010, 11:54
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

The Mythical Turn.....

Walter.......
...the request was for a list of co-ordinates you used........a diatribe about headings does not show anything....


....plot them on a map or use software , I prefer a Garmin...
Forum: Military Aviation
22nd Jul 2010, 09:22
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

AFCS limits.......

Mmmmnice


..thanks for that...but I am still confused......the manuals read as though it is 'gated' and not just cautionary advice......and block diagrams of the Chinook AFCS show an input from...
Forum: Rotorheads
19th Jul 2010, 11:24
Replies: 488
Views: 180,137
Posted By Robin Clark

Chinook rear gear.......

..what happens if one of the rear undercarriage units still show in contact with the ground after lift off........????.......do you have to touch down again to sort it out......???????........
Forum: Military Aviation
18th Jul 2010, 16:56
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Emergency Power......

dalek , chinook240 , etc......
..from reading the words of the AAIB I now realise that there is a little more to the story......
..when full emergency power is demanded , the PTIT (power turbine...
Forum: Military Aviation
10th Jul 2010, 15:23
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Walter.... ...we are still waiting for the list...

Walter....
...we are still waiting for the list of co-ordinates from which you derived the mythical right turn.....????????.....yawn...

JP........
.....looking back I realise that I failed to...
Forum: Military Aviation
18th Jun 2010, 21:41
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Walter.... The Route........ ...well yes...

Walter....
The Route........
...well yes physically they could have flown direct if the weather allowed , (although there is a speed , time , and fuel penalty involved in climbing to overfly an...
Forum: Military Aviation
11th Jun 2010, 22:04
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Dalek and 4468 link here for the report from...

Dalek and 4468
link here for the report from Mr.J. Mitchell ..........excellent as it is , he also fails to take into account the whole flight ........
...the first half of the leg was through...
Forum: Military Aviation
7th Jun 2010, 10:06
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Speed-Power

Dalek , Walter...
..just one small point here.........
..there were no power levers for the engines.........
..the whole point of FADEC is to allow the engines to respond by themselves to any need...
Forum: Military Aviation
5th Jun 2010, 10:43
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Eye witnesses

The fishing boats were never traced , so much attention was paid to the evidence provided by one of the yachtsmen........
..however convincing he may have seemed his testimony was inconsistent
.ie...
Forum: Military Aviation
4th Jun 2010, 13:15
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Hi Walter......... ...I am not sure that I...

Hi Walter.........
...I am not sure that I understand any part of your post 6518........
..but.......
..the respected Mr J. Mitchell from Boeing states that there was a turn made nearly three...
Forum: Military Aviation
2nd Jun 2010, 11:15
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Walter ...sorry but there was NO RIGHT TURN...

Walter

...sorry but there was NO RIGHT TURN after waypoint change.......
..this is a myth started I think by the Fellow from Boeing but few people bother to check his calculations........
..the...
Forum: Military Aviation
29th May 2010, 13:48
Replies: 8,153
Views: 1,308,101
Posted By Robin Clark

Walter Yes the current BEL vor is at the...

Walter
Yes the current BEL vor is at the location given , north of the threshold for runway 17 , slightly east of the centreline....My old documents from 1994 give a slightly different loc. but...
Showing results 1 to 35 of 51
 
Page 1 of 2
1
2


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.