Jump to content

pmccarthy

Members
 View Profile  See their activity

  • Posts

    3,668

  • Joined

  • Last visited

  • Days Won

    40

 Content Type 

Everything posted by pmccarthy

  1. pmccarthy
    Old girl? Bite your tongue! She is 600 hours young. We haven’t settled on a rate yet.
  2. pmccarthy
    P92 arrived today and went into the hangar! Now for some RAA school activity at Kyneton.
  3. pmccarthy
    Where are the materials going to come from to make all these electric marvels?
  4. pmccarthy
    We bought a Tecnam P92, only 600 hours, barn find! You can all stop looking. 🙂
  5. pmccarthy
    I know a caravan manufacturer ships Aussie steel to China where the chassis is assembled and shipped back to Aussie. They don't trust Chinese steel but the assembly and welding work is fine.
  6. pmccarthy
    For those wondering what we are talking about...
  7. pmccarthy
    It all depends how deeply you choose to enter the stall to define it as a stall before starting recovery.
  8. pmccarthy
    I had no trouble doing this about ten years ago. But a friend recently found that they had no record of his licence, issued back in the DCA days.
  9. pmccarthy
    RSol is an unfortunate name.
  10. pmccarthy
    The Foxbat people are still making aircraft in Kiev, sending them in containers to Gdansk in Poland for export.
  11. pmccarthy
    Nothing flucks a capacitor like a high- velocity impact.
  12. pmccarthy
    I tried to complete the survey but wanted a box that said 'none of the above' in each section.
  13. pmccarthy
    This Saturday.
  14. pmccarthy
    Happens with black soil in river flats too.
  15. pmccarthy
    Have you not watched Russian crazy driver videos?
  16. pmccarthy
    I admire kit builders but will never become one. My builds have all been by Airfix.
  17. pmccarthy
    Fly in to Biggest Morning Tea at Kyneton Aero Club on May 7th from 9am.
  18. pmccarthy
    Yes, the nonsense drove me away.
  19. pmccarthy
    In pumped hydro turbines are also pumps. No pump can draw more than about 6 metres which is an atmospheric head of water after losses. So all the gear has to be at the bottom of the shaft or pit, not at the top.
  20. pmccarthy
    Pumped hydro from open pit or underground mines is very challenging. The pump/turbine has to be at the bottom, but above high water level. So the effective head is much less than the depth of the pit. Permanent access in either case can be very expensive. The slopes above pit haulroads are designed to last mine life only, and even then may need regular maintenance. Haulroads themselves often fail after pit closure. Rehabilitation of an underground mine decline might cost $10,000 per linear metre or $90,000 per vertical metre on a one in nine grade. And then there is the need for permanent ventilation, power reticulation, and modularisation of hydro components to fit down a 5x5m tunnel.
  21. pmccarthy
    Oil pressure gauge? We were lucky to have an engine at all. 😁
  22. pmccarthy
    Calls for taxi, entering RWY, turning downwind, turning base, turning final, clear of the runway are standard teaching by most instructors at most airfields and they make sense. Any more are superfluous unless there is a conflict.
  23. pmccarthy
    My point is that supply is not easy to fix, it is impossible to fix. The known deposits of major minerals are quite inadequate to deliver the supply. The time from drill discovery to first production for any major deposit is more than twenty years, even assuming community support for a project. And there are increasingly stories like this from January 2022: The Serbian government has revoked the lithium mining licences granted to Rio Tinto after growing opposition to the company’s plans. Ana Brnabić, the Serbian prime minister, said all decisions and licences regarding Rio Tinto’s plans had been annulled because of environmental concerns.
  24. pmccarthy
    I thought you weren't looking too well.
  25. pmccarthy
    Copper is very recycleable and should never be landfilled. The problem is the demand for more copper for new electrical things that more people will be wanting. Demand far exceeds supply, price will go way up and we will not get our wind, solar and battery goodies. Hence the IC engine will be around much longer than current predictions.
×
×
  • Create New...