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onetrack last won the day on July 19

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About onetrack

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    Perth, W.A.
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  1. Talking about mine shaft timbers reminds me of the amazing sight that used to greet you if you inspected the "Wealth of Nations" gold mine, 50kms NW of Coolgardie, W.A. The mine workers had utilised local Gimlet hardwood for the props to support the roof - and had installed very sizeable, 75mm thick slices of Salmon Gum slabs, simply sliced off the nearby big Salmon Gum trees, as load-spreading plates, top and bottom of the Gimlet props. But the rock pressure on the props was so great, it had punched the Gimlet uprights clean through the Salmon Gum slabs - leaving the remnant Salmon Gum to hang around the Gimlet uprights, like oversize washers!
  2. Because he's been known to totally destroy anything/anyone, that gets in his firing line??
  3. With a bit of luck, one of the victims carrying a video on the fated flight may have taken some useful footage, that helps investigators pin down the reason/s for the crash.
  4. Brett, what happened to your original AeroVee Turbo? Did it self-destruct? https://www.facebook.com/sonexaircraft/photos/sonex-first-flight-brett-ahearncongratulations-to-brett-ahearn-of-geraldton-west/10154087362063060/
  5. AD/GA8/9 is rather concerning - particularly this bit ... "A manufacturing quality escape has resulted in wing strut fittings in the effective serial number range to be manufactured with incorrect grain orientation. The fatigue implications of the incorrect grain are not well understood. Therefore, CASA has mandated a conservative factored fatigue life limit based on the known fleet data of the affected aircraft. CASA will continue to gather data for the purposes of managing the fleet removal of these fittings from service." One hopes that this particular Swedish GA8 wasn't missed, due to paperwork or communication errors, or language difficulties. https://services.casa.gov.au/airworth/airwd/ADfiles/under/ga8/GA8-009.pdf There are 10 AD's relating to the GA8, and one is related to wing strut fittings, and one is related to HS inspection for cracking and improper assembly of fasteners. https://services.casa.gov.au/airworth/airwd/schedules/ad_display.asp?sched=under&toc=ga8 The destruction of SE-MES is very extensive, the fuselage broke in half at the cargo door, and the rear section is missing all its tail structures. The photo below shows the rear fuselage section lying in the forest, obviously some distance from the rest of the wreckage, thus indicating the fuselage broke apart in the air. https://www.abc.net.au/news/2019-07-20/plane-crash-near-umea,-sweden-1/11328534 SE-MES in better days. https://www.flickr.com/photos/[email protected]/27343742728
  6. There's some information on recording conversations in the lawyers website link below ... https://www.mst.com.au/legality-of-secretly-recording-conversations-in-australia/ The legislation varies from State to State - but the over-riding principle is whether the conversation is private or public. A conversation on aircraft radios cannot be considered private, it is a public conversation, so no problems as regards recording it. The principle is the same as videoing/photographing people who are unaware that they are being photographed. You do not need peoples approval or agreement to video/photograph them, in public areas, because they are in a public place. But if you video/photograph someone who reasonably believes they are in a private place (with a reasonable expectation of privacy) - such as their bedroom, or even a fenced backyard, you can then be found guilty of a illegal recording crime. There is also an allowable definition of "commercial interests" attached to recording of conversations. This means that a recording can be made if one party has a commercial interest in the discussion. http://www.mcleods.com.au/news/local-government-updates/recording-conversations-without-consent
  7. Every "new" war is a vastly different war from the previous one - and each "new" war is a massive learning and development curve, to counter the "new" systems the enemy has devised. In the next war, F-35's won't even get off the ground. Drones will be the way the war is carried out, armoured war robots will be everywhere, and more war action will be carried out at computers based in hardened bunkers, than ever will be carried out by ordinary soldiers on the ground, or in the air, by manned aircraft. The greatest threat to participants in the next war, is who will have the technology to unleash massive EMF bursts to destroy electric power facilities, and who will have the ability to destroy GPS satellites in space, thus "blinding" the enemy.
  8. The history of mankind on this planet is one of continuing, and continuous, killing and war. There's a reason this planet is out on its own in the Universe, and we cannot find any similar life within reach of us. It's simply because this planet and its inhabitants, is the Alcatraz of the Universe - the dumping ground for every type of scumbag that was ever brought to life - and no other life form in the Universe wants anything to do with us, in case we transfer our constantly murderous, war-mongering behaviour, to their peaceful planets. If we do happen to eventually colonise any close planets, it would only be a matter of time before murders took place there, and a war was started there. Sorry if my opinion is too negative for you, but I fail to see any likelihood of murderous behaviour and war-mongering, ever ceasing on this planet.
  9. Bilguun, do you have access to the Heavy Maintenance Manual for the Rotax 914? Here is the link to the HMM. https://m.cps-parts.com/cps/pdf/d05014.pdf Your 914 turbocharger and wastegate is controlled by an electronic regulator (sometimes called a CPU - Central Processing Unit, other times called an ECU - Electronic Control Unit). Rotax call the 914 electronic regulator, a TCU (Turbocharger Control Unit). The TCU takes information from several sensors located around the engine, and processes this information to control the turbocharger and the wastegate. The initial requirement is to ensure the throttle is positioned correctly, and the wastegate control mechanism is similarly correctly positioned. Section 76-00-00 of the HMM gives all the information you require. If the Throttle Position Sensor is feeding incorrect information to the TCU, there will possibly be a lack of power. Note that because the TCU is an electronic controller, it logs faults, as well as many other engine parameters. This information can be extracted from the TCU by the use of a computer and the necessary TCU interface, which is proprietary Rotax software (that is, you cannot use any other software or program). This interface is called the "communication program" by Rotax. It comprises software, and also a dongle for some models of the TCU. Section 76-00-00 outlines what is required (pages 13 and 14). I'd suggest you check the TCU log via the Rotax interface, on a computer, and see if the TCU has logged any engine faults associated with the turbocharger and wastegate, and any other engine controls or sensors.
  10. What's a nanotrike?? A trike you can fit 3000 of, on a pinhead??
  11. Attach lawnchair to multiple tethered helium weather balloons, sit in chair, then release tether. Well, it worked just fine for Larry Walters, he got to over 15,000 feet, with no trouble at all. Well, not until he came down, anyway. https://en.wikipedia.org/wiki/Lawnchair_Larry_flight
  12. Turbo, you were a lot younger and keener, and a lot fitter, back then! I am amazed now, at the weight of stuff we used to manhandle around when we were young. Heavy dozer components that demand a forklift today, were simply manhandled, when we were younger. I picked up a big copper tube/steel frame Cat Marine engine intercooler yesterday. It weighs 62 kgs, and it nearly killed me, to manhandle it around! I must be getting old! (70 last month).
  13. I think Turbo has omitted a "1" from his bag figures. Bags of wheat were 180 lbs when I was young and keen - and 180 lbs is nearly 82 kgs! You had to have a strong back and a weak mind, to manhandle lots of bags of wheat! It's pretty eye-opening watching blokes pile bags of wheat in a stack - particularly when those stacks rose several metres high. Here's some great film footage of bagged wheat handling in S.A. in the late 1950's, judging by the fairly new "D" series Bedford truck. No grossly-obese workers in this era! I'm surprised that S.A. was still handling wheat in bags in the late 1950's - W.A. was the first to introduce bulk wheat handling in Australia, in 1934, at Yelbeni and Wyalkatchem, W.A. Peter, 10 bags to acre is just over 2 tonnes to the hectare today. Elders put out a pretty good agricultural quick reference, with ready-reckoner containing metric-imperial conversions. https://eldersrural.com.au/wp-content/uploads/sites/3/2016/08/Cropping_Quick_Reference_Guide.pdf
  14. I dunno, I reckon I wouldn't mind the $$$'s in this very nice crop of wheat that I spotted, just coming into ear, a few kms South of Coorow, W.A., in September 2018. This would've produced 5 tonnes/Ha, I reckon. And on the other side of the road was the best canola crop I've seen in 20 years. 2018 was a good year for the Northern Wheatbelt of W.A., the grain storage points in this zone, are still pretty full from last years crop.
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