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Jabiru7252

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Everything posted by Jabiru7252

  1. I know that if my plane had to stay out of a hangar, I'd be quick in acquiring some sort of weather/sun shade to throw over the thing. Too expensive a toy to let it get ruined. I am of the believe that many hangar owners are greedy bastards.
  2. It's all too hard for my failing brain. AS recreational pilots I thought we could be free of the BS that GA pilot/owners put up with. Now I have to find some clown with a soft condescending tone to explain this crap to me while sitting me on her lap.
  3. The official term used by the ATIS is "Dust Devil". Yep, believe it or not. I flew through one in a Piper Tomahawk at about 300 feet AGL. I thought a bus had hit me.
  4. Inertia is the tendency of an object to resist any change in its velocity, including zero velocity when subjected to an external force. Kinetic refers to motion, a moving object has kinetic energy, a rock raised up 10 meters has potential energy, that energy becomes kinetic when the rock is dropped. When the rock hits the ground that energy is converted to heat etc.
  5. One of the great positives about being a member of the Gawler flying club is that the occupations of the members is so varied, each has something to contribute. We have computer scientists, agricultural scientists, a guy with a PhD in atmospherics. We have Doctors, coppers, farmers, butchers, bakers and candle stick makers. Computer programmers and electronics techs. It's great, and I believe this forum is much the same.
  6. Click your icon (top left of screen) then select 'Manage Followed Content' then find the topic you want to not follow, select change preference, click 'Do not send me any notifications.
  7. Well, if we didn't learn the 'crap' we'd still believe that magic was the reason most things beyond our understanding actually happen. And, we'd still be living in caves and grunting.
  8. Oh dear.....☹️
  9. The LEDS are actually flashing and it's the circuit that does this that causes the interference. So, if you know the flash rate, build a simple PI filter to suit. Maybe a Spec analyzer picture with the led light off and a pic with the led on on would be good to compare the two. Something I might play with just to 'refresh' my fast fading electronics knowledge.
  10. Apart from the drive to the airstrip, playing with fuel is probably one of the most dangerous things we can do.
  11. The lathe had sat in the weather for 20 years! Everything was coated in rust. The results were quite surprising. Can't find the pictures :-(
  12. I wonder if electrolysis could be used to clean engine bits and pieces. I saw cogs from an old lathe that were in terrible condition come up really well when electrolysis was employed.
  13. I had a friend who couldn't do better than grade seven math and English but he could thread a needle with a backhoe...
  14. starts in games, ends in tears...
  15. Aluminum is nowhere near a good conductor as copper (about 60%) but is lighter. That's the only reason (and a poor one) I could see for using it in electrics in a plane.
  16. Many thermistors have slow response times, lag times between 15 seconds and a few minutes. A semiconductor junction is faster than a resistor and I'd be surprised if the sensors are in fact 'straight resistors'. The smaller the mass of the sensor the faster the response (all other stuff being equal). Lot's of info on google...
  17. It oils in the wood (not water) that will apparently drain (due to gravity) to the lower end of the prop if it's left vertical for a long time. But, like Thruster88 says, surely the very high G's experienced by the spinning prop would very quickly throw out the oils etc. Too much to learn, so little time...
  18. This is online http://docshare01.docshare.tips/files/3422/34223648.pdf but not Australian. Some might find it interesting.
  19. Well, going by the electronics junk coming out of China, I'd find it hard to trust their airplane engines. Poor quality materials, parts driven beyond their specs. Shortcuts to keep costs down. It's scary and dangerous, people have been killed using cheap Chinese crap.
  20. She didn't say 😞
  21. I'm immeasurably clever (mum had me tested) and find physics etc. no great challenge. I did work for twenty years in a physics environment. It's just that some poor sod may think they are dumb for not knowing the deep stuff when in fact it's not even in the BAK syllabus. (I'll assume you did BAK for GA license). As a pilot just knowing what form drag, parasitic drag and being drag is all that's really needed. I do learn heaps reading the posts on this forum.
  22. It's all magic folks. Don't need to know this stuff to be a good pilot. Just the basics will do.
  23. Remember learning this back when I did air and water balancing. Turbulent flow in airconditioning ducts could not only cause damage over time, but cause low frequency oscillations that drove people bonkers.
  24. What worries me is the amount of solar panels going up. Drawing all that energy from the sun is going decrease its life span and then we'll all be up the creek.
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