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JG3

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Everything posted by JG3

  1. I have a Savannah with an airbox. I did lots of comparison testing of power with outside air vs inside cowl air. Temp difference usually 3-4 degrees. Couldn't tell any difference at all.... So long ago removed the scat hose from outside and just run on inside cowl air. I reckon that the slightly warmer air will avoid any carb icing - if Bing carbs are actually prone to icing..... 1600 hrs now never a problem. The airbox now just makes a good support to tie the carbs together and prevent any vibration, and gets in the way when I need access to the back of the engine......
  2. There was blue fuel line that stayed flexible and lasted nearly forever. Then a look-alike came on the market that crumbles in no time..... Can't tell the difference when new. Go for Gates or similar quality automotive black rubber.
  3. JG3

    Savannah stall.

    Exactly correct. Increasing AofA means increasing lift coefficient. It's the ability of the Savannah wing to attain this high AofA without suddenly letting go that makes it such a dependable STOL aircraft.
  4. JG3

    Savannah stall.

    For those who haven't seen these yet, here are detailed and very thorough flight testing of different wing configurations on a Savannah: https://www.stolspeed.com/flight-testing-slats-vs-vgs
  5. JG3

    Savannah stall.

    All correct, EXTREME down slope wind conditions. And he had full flaps deployed, bad practice for take off in those conditions.....
  6. JG3

    Savannah stall.

    It's a modified NACA 65018. Bottom surface flat instead of slightly under cambered.
  7. Load your trailer up at maybe bulk price and become a dealer up this way. Someone needs to do it.....
  8. JG3

    STOL comp winner!

    I hear that the winner of the recent STOL competition at Lismore was a Savannah! Against all those tail draggers with huge special wheels. Irony is that the prize was a fancy tailwheel, after he'd just demonstrated that he didn't need one!
  9. How are dedicated CTAFs allocated?? The reason I ask is that in our SE Qld area for example, a very busy airfield like Gympie is sharing 126.7 while a very quiet airfield like Watts Bridge has it's own dedicated frequency. With all the training action at Gympie, sometimes the transmissions are almost constant, taking up much of the 126.7 air time. Do the managers of Gympie need to apply for a dedicated frequency and be assessed, or how is it done???
  10. I wanted to follow the gas pipelines that carry gas to the export port at Gladstone. Finally got perfect weather for the flight. https://followingthegas.blogspot.com/2019/07/following-gas-to-export-httpswww.html
  11. There's lots of discussion about new power plants lately. There are several power plants of different types near here, so I went for a look. https://flighttoviewpowerstations.blogspot.com/2019/07/blog-post.html
  12. Surely the news and discussion of this disaster will be all the training any of us needs to not do the same..... Don't start out too late for somewhere too distant...... Flight Planning 101.
  13. I just stepped outside to see how dark it is at about 6:30pm. Completely dark, no horizon, very slim moon giving no light.....
  14. And must keep in mind when flight planning to allow a 'Reserve of Daylight flight time', same as a Reserve of Fuel flight time, not just plan on arriving at last light or even at sunset.....
  15. Departing at1600 for a 150nm flight with sunset at 1728....??? Several useable alternates enroute..... Judgement???
  16. I wanted to have a look before they start digging.... Fight to the Adani Carmichael mine site.
  17. I used 2mm and that works well.
  18. I don't know, probably any would do due to small loads involved. I chose Teflon due to its reputation for low friction.
  19. No tendency to tilt showing after 1000+ hrs. The diameter of the flange for the thickness is plenty stability.
  20. These are much improved aileron bushes that I made for my Savannah long ago. 1000+hrs now and no wear at all. Still snug fit and silky smooth action. The larger bearing surface of 8mm diameter Teflon gives no wear on the aluminum. The bushing is held tight against the support by the bolt, and the aileron bracket rotates on the bushing. The nyloc nut is used because this isn't a rotating part, and the bushing must be held tight against the support. Needs access to a lath, but someone should be producing such bushings.
  21. No news, just wanted to get away from that "...lost foot..." post that comes every time I scan the forums list.....
  22. The story is that they are only for use by the Flying Doctor, and then only when 'official traffic control' (police?) is in action.
  23. Flight to the Far Corner of OZ
  24. I just received an invoice for $10 from Avdata for a landing fee at Chinchilla, Qld. I had landed there for a quick pee beside the runway then away again in minutes. We often joke about the $100 hamburger, but this is a $10 pee fee......
  25. This weekend we tried to use that Brolga prop to replace a Bolly damaged at Cawarral on the way to Lakeside. But it turns out that it won't fit the S and XL Savannahs because they have that prop hub extension with bolt holes only 100mm spacing.... The Brolga is 80mm and fits the Rotax hub because it has bolt holes for both 80 and 100mm sizes. In this instance we managed to borrow a new Bolly from Ray at Rods Bay. Many thanks for Ray's generosity and to Greg who arranged the contact. It's a great flying community we enjoy!
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