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JG3

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Everything posted by JG3

  1. Is that mogas PULP at Yarram or avgas??
  2. Are you saying that isn't available to visiting aircraft?? It sure would be good to have that facility to top up before heading across to Tassie....
  3. It's now on the map. Phone number??
  4. Also you can post any new info on OZRunways ‘Public Notes’
  5. Just post the changes needed here and I will update the map.
  6. Are you saying that isn't available to visiting aircraft?? It sure would be good to have that facility to top up before heading across to Tassie....
  7. Yes that one is very out of date. I made that one many many years ago in the days of REAL ultralights....
  8. Good one. Lethbridge is listed in ERSA but Tyabb not. This list is growing, please keep it up!
  9. That's covered in this map that I made many years ago. Not up to date but still valid mostly. I welcome any updates. https://www.google.com/maps/d/u/0/edit?mid=1HDxCTbbdJ7DiSSakAVEBsIzGCrg&msa=0&ll=-21.28214545319641%2C139.58407160072173&spn=41.56424%2C48.251953&z=5 That's in stolspeed.com if that above link doesn't work....
  10. <Any aerodrome that has a website would tell you what fuel is available there currently.. You'd normally check that before going there> Of course I already know that, having landed at more than one hundred airfields in my flying travels over 30 years. I just want a list of airfields that do provide mogas to aid in my flight planning. I note that neither Goolwa nor Serpentine are noted in ERSA that they do have mogas available. I understand that ERSA often takes ages to update, so I seek a more current list. I also note that Leogatha is not listed in ERSA as providing mogas, even tho I have fueled with mogas there a couple of times in years past. I understand that it's provided by the local flying school as a private service so not publicized, but it sure would be handy to know that availability. The only airfield that I know of with mogas that is listed so in ERSA is Gympie. I realize that it's very difficult to arrange mogas on airfields, not least because distributors panic at the mention of aviation using mogas in aircraft..... We all use it constantly for good reason in Rotax aircraft, obtained from ordinary auto service stations. I now have more than 3000hrs running on it and never a hint of problem. I've also used a lot of avgas when necessary, and have been plagued by lead fouling in the past. Every time I return home from a long trip having used avgas I drain the oil while it's still hot, hoping to get rid of some of the lead before it settles in the gearbox..... The LL in 100LL doesn't mean 'low lead' it really means 'LOTTA LEAD'. If I have a list of airfields that do provide mogas I will go out of my way to fuel there to increase their throughput. JG
  11. Has anyone compiled a list of airfields that now supply unleaded fuel on site?? I only know of Goolwa, Gympie, and possibly Leongatha...... Any others that fliers know about?? JG
  12. After the long drought the Darling River has just had a minor flood, so I had to see that. the story here https://whiskeyfordrinkingwaterforfighting.blogspot.com/ JG
  13. There was a news clip this morning that it due to an inflight breakup...... Any further news??
  14. I didn't have anything to do with the Bleriot. The mechanic who changed the engines received this one for his work and he left it for me to sell for him. JG

    1. facthunter

      facthunter

      Ta for the reply. I didn't know there was one in the Country. Nev

  15. I have 4 x AN5-27H you can have.
  16. Try it, you might like it. It's a delightful feeling just floating along with just the swish of the air going by. It's almost addictive..... Focus on the airspeed for best glide and the plane will fly just fine.
  17. What sort of aircraft is that with a 22:1 glide ratio?? That's darn near a glider..... Nothing like most of the recreational aircraft we fly, with GR around 10:1.....
  18. I must emphasize that this only tested glide at idle power vs prop stopped, no other option with a Rotax engine. It says nothing about glide with a windmilling prop. Someone with an aircraft/engine combo that does leave the prop windmilling at best glide speed needs to do the tests to settle that argument that goes on and on. It's easy to do, and only needs a stopwatch besides the altimeter you already have, and a phone does that. Early morning before thermal activity, climb to 3200ft, set up a glide at your best glide speed, time the descent from 3000 to 2000ft. Repeat several times at idle and at windmilling. Average the measured times. If the prop will stop when pulling up to a slower speed and then stay stopped at glide speed then that would make a really good comparison. To calculate descent rate - 60,000 / time(sec). To calculate glide ratio - 101.3 x speed(kts) / descent rate(fpm). Of course do it with an instructor on board and over a suitable runway in case the engine won't restart.....
  19. There’s been a bit of discussion (argument) recently regarding the difference between glide ratios at idle power vs with prop stopped. I’ve long known from experience that the glide ratio with prop stopped is less than at idle, but decided to do real measurement tests to settle the argument. With a Rotax engine there’s no option to keep the prop spinning; it’ll stop and stay stopped very quickly after switching off at glide speed. In an 80kt dive the prop will creep slowly from one compression stroke to the next, but no way spin. In this test, the idle speed static on the ground was 1670rpm, at 50kts glide speed it was 2350rpm. All tests done by timing with stopwatch the descent from 3000 to 2000 QNH, early early morning before any thermal activity. Three attempts at idle and three at prop stopped, with the average used for calculations. Just watching a VSI is not nearly accurate enough for this exercise. For the Savannah, 50kts is the speed for best glide ratio, as determined by earlier testing. Times recorded for these tests are - at idle 101 seconds, at prop stopped 94 seconds. At idle - 101sec/1000ft = 594fpm descent rate = 8.5:1 glide ratio @ 50kts. Prop stopped - 94sec/1000ft = 634fpm descent rate = 7.9:1 glide ratio @ 50kts. So for each 1000 feet of descent, the aircraft will glide 8,500ft at idle or 7,900ft with prop stopped. So that’s 600ft (182m) less distance at prop stopped than at idle. That may not seem like much until you’re on a final with prop stopped and find that you’re falling short of you’re aiming point….. So need to aim farther from the intended touchdown point to allow for that difference. Quite a bit farther in practice, and then slip off height to hit the chosen point. That’s if you’re practiced at idle power approach already, rather than using some power to maintain a glide slope. If you’re using power regularly then you aren’t at all prepared for a deadstick landing…. I always pull power to idle at the start of base leg and don’t change that right to touchdown – good practice. I only need to change that when someone ahead is tying up the circuit with a long powered final…. I’ve done dozens of prop-stopped landings and really value the experience and the confidence that builds. I realize that we’re supposed to only do that with an instructor on board, but I know from early training what cautions are required and follow those lessons carefully. I reckon everyone should get that experience. A convenient way to do that would be when you next do a BFR to ask the instructor to let you do a couple of dead stick landings – you could learn a lot.….. If at first you can’t hit your chosen spot then do it again and again until you know how the picture should look on approach. But one tip: As soon as the prop fully stops after switch-off, throw the switches back ON to be ready for a re-start. If you don’t, you’re liable to get a heart attack when you need power again and crank the engine and it doesn’t start right away…..
  20. Yes still watching. Want to hear the result of this mystery.....
  21. Bombardier Recreational Products (BRP) says it has suspended the delivery of aircraft engines to "countries with unclear usage" in the wake of reports that some of those engines are being used on Turkish combat drones deployed by Azerbaijan in fighting against Armenian forces in Nagorno-Karabakh. The Quebec-based company — better known for its Ski-Doo and Lynx snowmobiles — said it became aware late last week that some of the recreational aircraft engines produced by its Austrian subsidiary, Rotax, are being used on Turkish Bayraktar TB2 unmanned aerial vehicles (UAVs). https://www.cbc.ca/news/politics/turkey-armenia-azerbaijan-drones-bombardier-1.5775350
  22. Gday, Finally the results of testing the EProp in comparison to Bolly and Kool (Luga), using manifold pressure to set engine power exactly equal for each. Once again surprising results that required testing again and again to confirm. The results and analysis are several pages so access them here https://www.stolspeed.com/nid/46 EProp Testing.docx
  23. She was very cool the way she handled that flareup.
  24. It's not who you were told. I have word from a neighbor of his at Gatton Airpark. He flew a trike there.
  25. That's way out of date; I haven't kept it up. There's way more available now as already demonstrated. Excellent project. Hopefully tied in with OzRunways for convenience.
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