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Search: Posts Made By: ion_berkley
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Forum: Tech Log
14th Jul 2019, 03:29
Replies: 5
Views: 1,752
Posted By ion_berkley

FWIW I work in a building with a far larger roof...

FWIW I work in a building with a far larger roof top solar array....and its so happens that for reasons we won't go into that I happen to have lots of very sensitive radio's.. I can assure you this...
14th Jul 2019, 03:13
Replies: 26
Views: 6,683
Posted By ion_berkley

I suspect that the US stats include wild/forrest...

I suspect that the US stats include wild/forrest fire crew's, which is a whole different risk profile than your typical UK fire incident.
4th Jun 2019, 04:51
Replies: 44
Views: 39,895
Posted By ion_berkley

The thread mentioned several times already was: ...

The thread mentioned several times already was:
https://www.pprune.org/rumours-news/595690-moog-boeing-737-parts-safety-compromised-china-charles-shi.html

Now apparently locked/hidden from view.
4th Apr 2019, 04:22
Replies: 22
Views: 4,985
Posted By ion_berkley

Fragments went in many directions, but must...

Fragments went in many directions, but must worryingly and annoyingly, a significant debris field extends to much higher orbits encompassing the entire LEO altitude range. Fresh observation by a...
6th Nov 2018, 07:04
Replies: 27
Views: 7,189
Posted By ion_berkley

You're probably thinking of Zipline in (currently...

You're probably thinking of Zipline in (currently in) Rwanda, it's a fairly scaled out operation:
Zipline ? Lifesaving Deliveries by Drone (http://www.flyzipline.com/)

In Europe the one to...
26th Oct 2018, 21:59
Replies: 11
Views: 2,605
Posted By ion_berkley

Yeah, not a problem. HawkEye 360 -...

Yeah, not a problem.
HawkEye 360 - Satellite-based GEOINT Technology, AIS Ship Tracking RF (http://www.he360.com/)
19th Oct 2018, 19:05
Replies: 65
Views: 19,532
Posted By ion_berkley

OK let's run a little farther with the numbers to...

OK let's run a little farther with the numbers to test this out some more with a practical configuration.
Seems like 200Liters of fuel is about all you can take with a maximum revenue load out on...
18th Oct 2018, 04:39
Replies: 65
Views: 19,532
Posted By ion_berkley

Serious back of the envelope calculation here...

Serious back of the envelope calculation here with a little real world data thrown in:

Islander with 2x 300HP engines = approx 400kW peak power output

Lets assume that the whole 2 min sector is...
Forum: Tech Log
10th Oct 2018, 19:18
Replies: 9
Views: 1,486
Posted By ion_berkley

UV has already been well covered above. Exposure...

UV has already been well covered above. Exposure to ionizing radiation is a function of:
1) Altitude (because the atmosphere attenuates the secondary radiations which cause this exposure, the...
Forum: Rotorheads
13th Aug 2018, 20:14
Replies: 10
Views: 2,500
Posted By ion_berkley

Oh it goes back muuuuch further than...

Oh it goes back muuuuch further than Genesis...https://en.wikipedia.org/wiki/Corona_(satellite)
17th Jul 2018, 07:20
Replies: 26
Views: 10,464
Posted By ion_berkley

Here you go Tartare - good link: ...

Here you go Tartare - good link:
https://www.nzherald.co.nz/nz/news/article.cfm?objectid=12089992
5th May 2018, 07:39
Replies: 120
Views: 37,610
Posted By ion_berkley

Orac, Just for the record since you keep...

Orac,
Just for the record since you keep quoting from this magazine article which is not exactly "neutral" in what it's selling....
Free Space Path Loss = -10 * log10((4*pi*distance/wavelength)^2)...
17th Apr 2018, 17:11
Replies: 466
Views: 528,193
Posted By ion_berkley

Well despite the missing inlet it appears that...

Well despite the missing inlet it appears that the bulk of the fan is still there:
https://twitter.com/ABC/status/986274915400716288
Forum: North America
15th Jan 2018, 23:40
Replies: 53
Views: 34,722
Posted By ion_berkley

Errr, quite the opposite, SFO runway centreline...

Errr, quite the opposite, SFO runway centreline separation on 28 L/R is on the order of 750 feet...Manchester is more like 1250 feet. Operationally they are completely dissimilar
11th Jan 2018, 17:32
Replies: 109
Views: 77,306
Posted By ion_berkley

That is without a shadow of doubt an RF test...

That is without a shadow of doubt an RF test range, not an engine test facility (of which there are numerous just south). Note the large dish array with zero elevation and the test stand at the end...
Forum: Tech Log
29th Nov 2017, 06:51
Replies: 34
Views: 7,384
Posted By ion_berkley

vapilot2004 No disagreement from me, but I...

vapilot2004

No disagreement from me, but I do think that you also need to take into account losses. The thermal efficiency of an aircraft turbofan is pretty poor compared with an electric...
Forum: Tech Log
29th Nov 2017, 06:06
Replies: 34
Views: 7,384
Posted By ion_berkley

When much of the charge for takeoff N comes from...

When much of the charge for takeoff N comes from descent N-1, that joules per hour cost (negating capital costs) looks great. That it also set's you up nicely for a go-around is just icing on the...
29th Oct 2017, 21:26
Replies: 10
Views: 4,206
Posted By ion_berkley

Funny you should mention it...from this weeks...

Funny you should mention it...from this weeks Russian ICBM tests:
https://vk.com/alex_626
17th Oct 2017, 04:06
Replies: 10
Views: 4,053
Posted By ion_berkley

At a guess, somebody is betting big on a new...

At a guess, somebody is betting big on a new sector in the commercial airline business, rather than a traditional business jet market. The exponential growth of Surf Air seems to show it's a valid...
26th Sep 2017, 06:06
Replies: 5
Views: 2,818
Posted By ion_berkley

I recalled seeing the unclassified footage from...

I recalled seeing the unclassified footage from the test that freeze frame was from...found it again: https://www.youtube.com/watch?v=BGoJl8Lr46g
Forum: Tech Log
19th Aug 2017, 22:34
2nd Feb 2017, 06:14
Replies: 62
Views: 23,259
Posted By ion_berkley

I know about this incident having discussed a ton...

I know about this incident having discussed a ton of scenarios with my buddy before he flew RTW in his PC-12 last year. Nice to know that its proven possible to ditch one safely in real world IMC at...
Forum: Tech Log
19th Jan 2017, 05:03
Replies: 47
Views: 31,348
Posted By ion_berkley

Space based ADS-B tracking was already...

Space based ADS-B tracking was already demonstrated in the fall of 2015 by a small Danish company on a very modest Cubesat called GOMX-3 launched from the International Space Station. It worked...
31st Oct 2016, 00:39
Replies: 67
Views: 71,175
Posted By ion_berkley

Nice piece of video showing the end of the...

Nice piece of video showing the end of the landing roll, wing already burning hard:

https://www.facebook.com/C130MRO/videos/981560475324167
Forum: Canada
18th Jun 2016, 06:21
Replies: 116
Views: 74,557
Posted By ion_berkley

Scott Base is right next to the US base at...

Scott Base is right next to the US base at McMurdo. Its a Costal location, likely with relatively warmer weather than the South Pole base.
16th Jun 2016, 23:35
Replies: 82
Views: 43,856
Posted By ion_berkley

You might want to let Airbus know then that they...

You might want to let Airbus know then that they are wasting their time.
Zephyr ? unmanned aircraft system UAS (http://www.militaryaircraft-airbusds.com/Aircraft/UAV/Zephyr.aspx)



Whilst you...
15th Jun 2016, 23:35
Replies: 24
Views: 5,290
Posted By ion_berkley

..all assuming dual citizenship is allowed....

..all assuming dual citizenship is allowed. Unlike the UK, not all countries support this status, Germany in general doesn't which no doubt is the obvious passport of choice for ex-mil kids....
8th Mar 2016, 05:26
Replies: 33
Views: 20,046
Posted By ion_berkley

Sigh. Thank goodness for microphones....

Sigh. Thank goodness for microphones. https://en.wikipedia.org/wiki/Phreaking
6th Jan 2016, 22:13
Replies: 44
Views: 8,492
Posted By ion_berkley

It's all about google skills mate: Try "hm...

It's all about google skills mate:
Try "hm forces degree"...lots of options.
My ex did direct entry to masters at Lancaster after she retired.
19th Nov 2015, 20:08
Replies: 50
Views: 22,440
Posted By ion_berkley

Solid research from the Torygraph I see. Well as...

Solid research from the Torygraph I see. Well as of 2 days ago there was one sat in the Manchester Museum of Science and Industry:
https://commons.wikimedia.org/wiki/File:Kamikaze-ManchesterMSI.jpg...
14th Nov 2015, 05:39
Replies: 12,908
Views: 4,855,183
Posted By ion_berkley

Interesting article in the Guardian this week...

Interesting article in the Guardian this week concerning now departed thread poster Regle (aka Reginald Levy):
Four hijackers and three Israeli PMs: the incredible story of Sabena flight 571 | World...
12th Sep 2015, 00:32
Replies: 20
Views: 4,205
Posted By ion_berkley

FWIW *Currently* smallsats are generally not...

FWIW
*Currently* smallsats are generally not rad-hard, have minuscule power budgets, low gain antenna's and abysmal success rates. Thus are generally f&*k all practical use in geostationary orbit...
22nd Aug 2015, 22:17
Replies: 22
Views: 15,089
Posted By ion_berkley

Talking of MAFFS, some of the crew shot some...

Talking of MAFFS, some of the crew shot some amazing video whilst fighting the Rim Fire in California in 2013. Gives you a really feel for the scale of the fires that have been occurring in West...
22nd Aug 2015, 18:35
Replies: 11
Views: 2,775
Posted By ion_berkley

Jacque Littlefield is perhaps the more...

Jacque Littlefield is perhaps the more interesting news snippet. You have to see the collection he originally put together to believe it. Remember this was his private "home" collection, not a...
26th Jul 2015, 22:53
Replies: 9
Views: 5,069
Posted By ion_berkley

I would think this is at least equally...

I would think this is at least equally interesting to the Freight guys...could well be a life saver if they can zip up the contents of their pallets in something like this for fire suppression.
Showing results 1 to 35 of 93
 


 
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