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Search: Posts Made By: RichardC10
Showing results 1 to 35 of 50
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Forum: Rumours & News
11th Sep 2015, 13:02
Replies: 918
Views: 1,120,158
Posted By RichardC10

HUGIN AUV

The Fremantle port schedule shows Fugro Equator going into Australian Marine Complex 1 at the end of September for four days work. Could just be routine maintenance but the company that did the...
Forum: Rumours & News
2nd Aug 2015, 10:06
Replies: 918
Views: 1,120,158
Posted By RichardC10

2nd Aug Debris at La Reunion

Here's a picture of this morning's piece of debris (or at least one of them).

https://pbs.twimg.com/media/CLZRTe6UMAAeg5t.png
Forum: Rumours & News
13th Nov 2014, 18:07
Replies: 281
Views: 222,332
Posted By RichardC10

In the SS2 powered flight video below, the...

In the SS2 powered flight video below, the feather deployment (not unlock) command is given at very low speed.

Virgin Galactic's Second Rocket Powered Flight Tail Footage - YouTube

It's...
Forum: Rumours & News
11th Nov 2014, 17:35
Replies: 281
Views: 222,332
Posted By RichardC10

I wonder if when the design was scaled up from...

I wonder if when the design was scaled up from SS1 to SS2, the locks went from a nice to have/safety feature to being absolutely vital to control the feathers in the critical Mach region. It’s...
Forum: Rumours & News
7th Nov 2014, 15:23
Replies: 281
Views: 222,332
Posted By RichardC10

I thought Virgin Galactic were not going to be...

I thought Virgin Galactic were not going to be commenting on the causes of accident.

Anyway, the quote is pretty clear. Move the unlock handle in a regime where the net aerodynamic forces work in...
Forum: Rumours & News
6th Nov 2014, 07:21
Replies: 281
Views: 222,332
Posted By RichardC10

@janrein Agreed that transonic loads could be...

@janrein
Agreed that transonic loads could be highly non-linear. However, the locks are out during the period the speed is reducing through the transonic regime in the test flights, though...
Forum: Rumours & News
5th Nov 2014, 10:09
Replies: 281
Views: 222,332
Posted By RichardC10

@funfly The video of the 2013 second...

@funfly


The video of the 2013 second powered flight does not suggest a significant climb during the powered phase of that flight. The unlock call on that flight occurs during powered flight and...
Forum: Rumours & News
5th Nov 2014, 05:19
Replies: 281
Views: 222,332
Posted By RichardC10

Stability of feathers against aerodynamic forces

If the hydraulics on the feathers can be overpowered by the aerodynamic forces (with the locks off) it’s odd that a system that would fail at Mach 1.02 is judged fully competent, with margin, at Mach...
Forum: Rumours & News
24th Jun 2014, 21:13
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

A communications engineer would be better placed...

A communications engineer would be better placed to comment, but a couple of points:

a. it seems that the system design wanted the pilot frequency generators (for correction of the uplink and...
Forum: Rumours & News
23rd Jun 2014, 23:21
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Hyperveloce That group will have to speak...

Hyperveloce
That group will have to speak about the BTO/BFO comparison themselves. It doesn’t match the model I have proposed (it’s miles off the BFO model), otherwise it would have appeared in...
Forum: Rumours & News
23rd Jun 2014, 23:16
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Gysbreght Just to keep this pot boiling,...

Gysbreght

Just to keep this pot boiling, some comments to try and back the position as stated in post #73! I will assume that the main issue is whether an exact match of a model to the data is...
Forum: Rumours & News
20th Jun 2014, 14:48
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

That works if you are using noiseless data, i.e....

That works if you are using noiseless data, i.e. exact measurements with no error. If there is an error on the data and a particular model fits the data (with error) exactly (each data point), then...
Forum: Rumours & News
20th Jun 2014, 06:05
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Mesoman As you say, there is an additional...

Mesoman

As you say, there is an additional constant related to the delay in that type of AES (and probably other constants) that cannot be disentangled from the VT virtual altitude with the data...
Forum: Rumours & News
19th Jun 2014, 07:42
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

I will include that in a full run. Effectively...

I will include that in a full run. Effectively that is what I did in section 7.9 of the paper but didn't include much detail. It will need a different average speed from 18:29UT to 19:41UT, but that...
Forum: Rumours & News
19th Jun 2014, 05:41
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

I was trying to use the simplest possible model...

I was trying to use the simplest possible model that will satisfy the data to the level of error in that data, which I estimate to be ~2Hz, one sigma. So I have used two parameters only, the speed of...
Forum: Rumours & News
18th Jun 2014, 12:47
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Inertial navigation failure, causing a drift in...

Inertial navigation failure, causing a drift in the platform? Perhaps we are drifting away from the ping data which is the subject of this thread. The ping data however interpreted shows the path...
Forum: Rumours & News
18th Jun 2014, 09:23
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Not the Inmarsat version of course (no detail has...

Not the Inmarsat version of course (no detail has been released), but I can derive the numbers from my model.

Others will have to speak about waypoints. Here is the data for the track from my...
Forum: Rumours & News
18th Jun 2014, 08:32
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

BOAC, MM43 I think BOAC is right. The...

BOAC, MM43

I think BOAC is right. The elevation angles correspond to the ranges. In the Inmarsat promotional materials they show elevation angles across the geographical footprints of their...
Forum: Rumours & News
17th Jun 2014, 22:16
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

BBC Documentary

In the BBC Horizon documentary this evening, it was stated that Inmarsat's 'hotspot' for the location of MH370 was at around latitude 28S on the 00:19 arc position. This corresponds to the best fit...
Forum: Rumours & News
17th Jun 2014, 18:11
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

enjineerin That's interesting, I will run the...

enjineerin
That's interesting, I will run the numbers on that.

I saw that idea but I don't think it is a starter. Inmarsat have been running this system for years - errors would have been sorted...
Forum: Rumours & News
17th Jun 2014, 08:47
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

A model for interpreting the BFO data

Over the last couple of weeks I have been developing an analysis of possible tracks for MH370. After adjustment for a very small cumulative frequency drift term during the flight (2Hz), the final...
Forum: Rumours & News
12th Jun 2014, 17:41
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

It seems the aircraft terminal compensates for...

It seems the aircraft terminal compensates for the aircraft speed and direction of travel, but not rate of climb/descent. This can be seen in the BFO values between 16.30 and 17:15 where the initial...
Forum: Rumours & News
12th Jun 2014, 16:11
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

There is one negative BFO number in the log, but...

There is one negative BFO number in the log, but no negative BTO numbers. The nominal terminal concept does not apply to the BFO data. For the BFO the standard is the frequency of the response...
Forum: Rumours & News
12th Jun 2014, 06:51
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Using the BTO data to get the ping rings

Here is my explanation of the Nominal Terminal concept, why it is used in the calculating the log values and how to utilise it with it in data analysis.

The Inmarsat notes say: “The BTO is a...
Forum: Rumours & News
8th May 2014, 17:54
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

The Atlantic Story

The problem with this story is that the reporter has gone to Inmarsat for fact-check and got "your story is entirely wrong" yet he has still published. Inmarsat are not the bad-guys here, it was not...
Forum: Rumours & News
5th May 2014, 22:03
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

@Datayq1 I have not moved anything. The ICAO...

@Datayq1
I have not moved anything. The ICAO report map refers to 'Updated Last Air Defense Radar Point' and the same point is on (a fuzzy copy of) the slide at the 29th April Beijing families...
Forum: Rumours & News
5th May 2014, 19:47
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

@Propduffer Mr Winter seems to have a good...

@Propduffer
Mr Winter seems to have a good Internet presence, e.g.
ATCA Technical Writing Awards (http://www.atca.org/atca-technical-writing-awards)

The last radar sighting at 18:22 is shown in...
Forum: Rumours & News
5th May 2014, 13:22
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

The independent report on the ICAO publication

Ref: Steve Winter’s report at:

Analysis: MH370 Preliminary Report | Air Traffic Management | Air Traffic Management - ATM and CMS Industry online, the latest air traffic control industry, CAA,...
Forum: Rumours & News
3rd May 2014, 12:41
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

The report analysis does not require a 'curved'...

The report analysis does not require a 'curved' track, that is to say a continuous turn. As I noted, the rate of change of heading (averaged over each leg) is not constant so each leg just averages...
Forum: Rumours & News
3rd May 2014, 11:07
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Some thoughts on the ICAO report maps

The ICAO report analysis shows that routes can be generated from the start point to the final ping arc at a variety of speeds that are not impossible. Once a start point and a speed are selected...
Forum: Rumours & News
1st May 2014, 15:14
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Full set of ICAO report documents ...

Full set of ICAO report documents

https://www.documentcloud.org/documents/1151155-mh370-preliminary-report.html
...
Forum: Rumours & News
30th Apr 2014, 14:17
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Ping arc data modelling update

Following the post yesterday on the new satellite elevation graph, I have modelled a course with constant rate of turn that ends at the final search box, and which fits the elevation graph. As stated...
Forum: Rumours & News
29th Apr 2014, 14:00
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

Sorry, my poor labelling; '-' in the legend means...

Sorry, my poor labelling; '-' in the legend means 'minus'

So Final ping arc = 00:11UT
Ping arc - 1 = 22:41 Ping arc - 2 = 21:41
Ping arc - 3 = 20:41
Ping arc - 4 = ...
Forum: Rumours & News
29th Apr 2014, 12:11
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

It's called a scoop, I think. Possibly...

It's called a scoop, I think. Possibly photographed by one of the families.
Forum: Rumours & News
29th Apr 2014, 11:13
Replies: 11,831
Views: 24,357,628
Posted By RichardC10

https://twitter.com/IvanCNN/status/460977558168043...

https://twitter.com/IvanCNN/status/460977558168043520/photo/1

Same reporter.
Showing results 1 to 35 of 50
 
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