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Thruster88

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Everything posted by Thruster88

  1. Thruster88
    Just be thankful that government IT contractors don't grow your food.
  2. Thruster88
    Another textron aircraft that may be dead in the water.
  3. Thruster88
    The market has moved on. Plenty of pilots of questionable ability can now buy a turbine aircraft. We can only hope the pilots of existing bonanzas and barons are kind to them and not write them off.
  4. Thruster88
    I think i did state the reason why a simple wastegate system is not used in my last post. Here is a picture to make it clear. All Rotax, Continental and lycoming engines have pistons valves and throttles and they all fly in the same atmosphere. No magic for any engine or airframe.
  5. Thruster88
    Yes the main purpose of turbocharged aircraft engines is to maintain manifold pressure and power at altitude to clear mountains, weather and or have a much higher True AirSpeed, TAS. I doubt your simple mechanical diaphragm actuator wastegate has any range. As you climb reduced atmospheric pressure acting on the spring side of the diaphragm will cause the wastegate to open when we need it to be closing. All aircraft turbo systems have electronic or an absolute controller or they get the pilot to manually close the wastegate( and hopefully not over boost the engine)
  6. Thruster88
    I do not understand why the bulkhead bearing lug is in two pieces. Moisture ingress, extra fatigue crack propagation sites? The bearing is replaced in the field using an enerpac hydraulic press tool.
  7. Thruster88
    Congratulations Moneybox, we have all felt your struggle with distance, instructors, aircraft, weather and other things. Well done, now just practice practice and hone those skills.
  8. Thruster88
    Harvest number 43 complete. Was a great year. Love the thruster.
  9. Thruster88
    Think of the simple basic diaphragm type waste gate actuator in this way, on one side we have boost pressure, on the other there is a spring and ATMOSPHERIC pressure. I don't think this will work correctly at altitude. Recently I removed a turbocharged engine and all components from a Cessna 414. The wastegate is operated by regulated engine oil pressure. Why did they go with this complicated system and not a simple wastegate gate. It is called an absolute controller, designed to work at altitude. Control at altitude and engine protection is the reason Rotax 914 has the more advanced wastegate control system.
  10. Thruster88
    So i see you asked this same question on the rotax forum and dismissed the answers as is your way. I will not try to convince you that Rotax engineering chose to use electronic control to provide maximum performance while maintaining engine protection from detonation. Some questions for you for you. Do diesel engines detonate? What happens with the performance of a diaphragm type actuator used on a simple turbocharger waste gate system if such a system climbed to 16,000 feet? Why do many turbo diesel engines not even have a waste gate?
  11. Thruster88
    So looking at the list of sensors used and their function it should be obvious why Rotax did not use a simple mechanical waste gate. 115hp from only 1211cc at only 5500rpm is a relatively high specific output.
  12. Thruster88
    I used the existing wing tip nav light wire to pull more wires through the wing on my RV to install a tailbeacon x in the wing tip.
  13. Thruster88
    No, just a visitor. Have plenty of hangar space.
  14. Thruster88
    I like to see the sun rise, always beautiful. My view from the house.
  15. Thruster88
    Not going to be fun when that toy jet engine is on fire. Pass.
  16. Thruster88
    The ATSB is doing a good job with these educational videos.
  17. Thruster88
    It is possible to go snow skiing all day in sub zero temps and 15 knots of wind chill with appropriate clothing. These electric pants could also be an option. The excellent heater in my RV6 has the very small heat muff on just one of the exhaust tubes, not much risk of CO poisoning compared to traditional systems that enclose the entire muffler. https://www.ebay.com.au/itm/304932708513?_skw=Electric+heated+pants&itmmeta=01K9Z4N7758VP6HNDXYJCJPJ2M&hash=item46ff67e0a1:g:zI8AAOSwQzRkWM-r&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1dCfX5Fg9ds%2FJgf5ULe0IroBHF7iOfloqn%2BguZ2%2BFh7h27Z85zqM0VZ6eizoV%2BQdbOzrT7bXqXxu%2F32JMo53oBAo08O%2F9av5xkUCqnWJzkyjhMvEmnWw%2BFWDpD5ihBIukeGwAqzhQf3NAIGM4AmM2Gy0m%2B1V4%2BB6Mc469jgWjTFYsa6ZES2uWCm%2B8e3VyM%2Bd16uBmMoEEhtu2UaIdKlcz9iUpZUcv0add6vJD2JCsfoYPbyFSMJHkjir%2Feyj4UHumH6Mf5zTDYsS2SyuH00Xcf6jZnqhC0NFz%2FsrXZOHaxhRQ%3D%3D|tkp%3ABk9SR-bz1OTPZg
  18. Thruster88
    Apparently an electric trim runaway. The preliminary report. Loss of control and collision with terrain involving Pilatus PC-6, VH-XAA, 2.5 km north of Moruya Airport, New South Wales, on 27 September 2025 | ATSB WWW.ATSB.GOV.AU
  19. Thruster88
    Another issue with high altitude flight is freezing up the inside of the crankcase or crankcase/oil tank breather tube. Water is a by product of combustion, the vapour can freez in the end of the tube as it exits the cowling. Some aircraft have a whistle-stop opening in the tube inside the warm area of the cowl as a failsafe.
  20. Thruster88
    Seems likely it was a RAAus registered Tecnam P92 echo.
  21. Thruster88
    True, or one could have a Thruster...
  22. Thruster88
    As someone in the farming game about 90% or more of crop farmers have their own ground sprayer, either self propelled or a tractor trailer unit. Drones also don't have to fly, small autonomous ground units are available right now, these can be very light weight and often use weed seeking camera technology for fallow spraying.
  23. Thruster88
    Given the problems people have with RAAus registration of jabiru aircraft fitted with Rotax engines how are you doing the engineering approval? Will you be selling an engine complete with MARUP or an STC as a package?
  24. Thruster88
    Had a nice fly in the mighty musketeer to a friend's strip in the hills for some Thruster flying this morning. The approach to the strip follows a curve in the creek valley, strip becomes visible on very late final and always looks very short. Good fun and the musketeer performs very well at light weight.
  25. Thruster88
    You need to re read what I wrote. Atmospheric pressure pushes oil FROM the tank to the oil pump. Would the system work with zero pressure in the tank?
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