Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

 
Search: Posts Made By: ion_berkley
Showing results 1 to 25 of 95
Search took 0.09 seconds.
Forum: Tech Log
14th Jul 2019, 04:29
Replies: 5
Views: 1,356
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, 04:13
Replies: 26
Views: 5,001
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, 05:51
Replies: 44
Views: 34,083
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, 05:22
Replies: 22
Views: 3,266
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, 08:04
Replies: 27
Views: 5,161
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, 22:59
Replies: 11
Views: 2,228
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, 20:05
Replies: 65
Views: 14,898
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, 05:39
Replies: 65
Views: 14,898
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, 20:18
Replies: 9
Views: 977
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, 21:14
Replies: 10
Views: 2,090
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, 08:20
Replies: 26
Views: 7,366
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, 08:39
Replies: 118
Views: 27,413
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, 18:11
Replies: 442
Views: 405,268
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
16th Jan 2018, 00:40
Replies: 53
Views: 30,934
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, 18:32
Replies: 109
Views: 63,641
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, 07:51
Replies: 34
Views: 4,492
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, 07:06
Replies: 34
Views: 4,492
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, 22:26
Replies: 10
Views: 3,924
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, 05:06
Replies: 10
Views: 3,613
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, 07:06
Replies: 5
Views: 2,570
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, 23:34
2nd Feb 2017, 07:14
Replies: 62
Views: 16,875
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, 06:03
Replies: 47
Views: 26,963
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, 01:39
Replies: 67
Views: 62,631
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, 07:21
Replies: 116
Views: 65,647
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.
Showing results 1 to 25 of 95
 


 
Forum Jump

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.