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Posts posted by Cosmick
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Update. Dec'd <10 yr old child and 30 Yr old male. Aircraft from Gold Coast area.
https://www.abc.net.au/news/2023-12-12/plane-crash-near-grafton/103217270
https://www.dailymail.co.uk/news/article-12852715/lilydale-grafton-nsw-light-plane.html
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Note the screw on lid, pop on lids not water tight when hard bumps cause a tip over.
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Gympie is a common waypoint for aircraft traveling north from Brisbane, Caboolture, Redcliffe and Caloundra being west of Maroochydore airspace and has active local traffic.
The accident apparently occurred 16km (9nm) from Gympie at altitude. If the Sabre was transiting the Pilot would possibly just have switched to ctaf from area. A glider at same altitude does not offer much of a profile and at possibly 100+ knots closing speed……… my 2 cents.- 2
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19 hours ago, Teckair said:
Apparently it was not the tug aircraft. News saying it was a ultralight Sabre. Near airports you really need to be reporting on the correct frequency.
https://www.abc.net.au/news/2022-11-11/tight-knit-community-devastated-by-mid-air-crash/101642356
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On 3/11/2022 at 5:43 PM, Steve L said:
Spot on Bruce, after that incident I wonder if he’s still test flying. Also sad for the owner of the Sonex who lives in the UK and built the plane here.
A similar incident happened to Maj ( may he Rest In Peace ) as he wasn’t so lucky.
steve
Also Wayne Fischer of drifter fame. Dangerous jobs I wouldn’t do it.
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Maybe some large salvage airbags under the wings to lift wheels would work.
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I had a GT500 with a 582 Rotax which was a factory built and I'm sure the 400 which is the singleseat version can take the 582 as well. as for hangerage maybe possible at Caboolture but has suggested go to the airfield walk around and talk to people.
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Some news in Asia isn't so censored. I will say however some persons could be upset viewing this Video. If real the Cabin would be intact without loss of pressure.
https://www.facebook.com/somprasong.pandum/posts/7827489657265000
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But there will be a weight at which the stall is 44.9 kts maybe 650 or 680 or 715 kg. Can the mtow be other than 600 or 760kg.
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I also find this confusing. I read the forum above and was comfortable in my belief of cruise rpm 912uls between 5100-5400. Then I got to the last couple of comments on in flight adj setups.
Reading comments from gyro operators and they cruise around 4500 with 914's and 915's which they have for more power. Surely if you have ground adjustable you would reduce the pitch to cruise at say 5200 and have shorter take off and better climb.
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On 27/10/2021 at 6:34 AM, flying dog said:
V1 should be replaced by a P1 - Point1 which indicates: YOU MUST BE FLYING BY NOW OR YOU WILL NOT STOP BY THE END OF THE RUNWAY!
Also the fact that VR > V1 is also weird/strange/confusing.
You have a "gap" between when you can take off and when you must take off.
Surley VR should be LESS THAN V1, or more correctly: P1
I don't know what i'm talking about but looking from the outside in - VR and V2 are airspeed. V1 is Groundspeed Vs remaining runway. The longer the runway V1 moves further down the runway so VR could be less than V1.
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On 05/11/2021 at 7:37 AM, Cosmick said:
Rotaxservice.com - The Rotax 912 A/F/UL engines require a minimum octane rating of 87 AKI, commonly referred to as “regular” while the Rotax 912 S/ULS/ULSFR and 914 F/UL require a minimum of 91 AKI (“premium”).
Reviewing again the Video I listed earlier and referring to the Rotax requirements I notice the Octane measurement used is AKI which according to the 'Man in the Video' is 4 points less than RON so 87 AKI is 91 RON and 91 AKI is 95 RON.
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So out there you have the Skippys and the Turbs, KGs Nevs and Wals (sorry to take liberties) and others who will investigate the intricacies of fuels and then there is the rest of us who ask advice and get good feedback and some individual biases. Personally I use 95 like an Insurance cover that I know nothing bad should come of that fuel and I store in airtight metal containers (good condition jerry). Reading the above feedback does give us (me) the uneducated some satisfaction of good practice.
I think this guy is funny, sometimes too much and I tire of him but this Vid seems to cover technically.
https://www.youtube.com/watch?v=3Sl5KqF4AM8
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First lets start at Manufacturers recommendations - Rotaxservice.com - The Rotax 912 A/F/UL engines require a minimum octane rating of 87 AKI, commonly referred to as “regular” while the Rotax 912 S/ULS/ULSFR and 914 F/UL require a minimum of 91 AKI (“premium”). Some may have noticed that the Rotax manuals mention ratings of 90 and 95 respectively.
Jabiru - AVGAS or Unleaded Automotive Gasoline above 95 Octane RON https://jabiru.net.au/wp-content/uploads/2018/05/JSL007-7_Fuel_Guidance.pdf
This article talks about the benefits for certain engines of increased octane fuels - https://www.mynrma.com.au/membership/my-nrma-app/fuel-resources/which-octane-petrol-is-best-for-you
I have only had aircraft with 2 and 4 stroke Rotax and was advised at schools and by peers to use 98 Octane even in 2 strokes with of course only Rotax recommended 2 stroke oil. When up there we all want an efficient clean fuel system and is this the only (but very good) reason for the higher than recommended octane usage, do any Aircraft engines have Valve Timing to utilise the denser fuel.
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It can hover and go in any direction just as a drone and makes a lot of noise. would be good for mustering. maybe a couple more rotors to give redundancy
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4 minutes ago, red750 said:
Missed the boat Cosmick. KRviator beat you yesterday.
I missed his post and the boat.
Ultralight crash north of Grafton 12/12/23
in Aircraft Incidents and Accidents
Posted · Edited by Cosmick
Aircraft identified as a Highlander 9 news
https://www.9news.com.au/national/lilydale-plane-crash-two-dead-in-northern-nsw-plane-crash/2c25a84c-5c69-4b12-939c-24f8d50379cb