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David Isaac

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Everything posted by David Isaac

  1. David Isaac
    Again ... and this is my last attempt; the following are the figures you were quoting from Jabiru to make your failure extrapolations. These were the statements made by Jabiru in English. Tell me how they have any relationship with the statements you have made above? "4 Service History At the time of writing: - The Jabiru 2200 engine has been in production for over 20 years in various configurations. - Approximately 7,000 Jabiru engines of various models have been manufactured. - It is estimated that around 500 engines have exceeded 1,000 hours TIS. - Annual fleet hours are estimated at in excess of 20,000 hours."
  2. David Isaac
    Doesn't even sound like she is working, no perception of high RPM. Jeez you were hot on that approach, long float time. What speed do you normally come over the fence on final?
  3. David Isaac
    I don't know what is up with you buddy. I don't read anything in those figures other than what was stated in English. I know there are major issues with Jab engines, we all know many operators have problems. But if we are going to quote numbers or claim the ability to extrapolate, you better be reasonably accurate otherwise the credibility of your claim suffers as a result.
  4. David Isaac
    Yes Kaz. but the hilarious part is he did fly under it. It was alleged he kicked rudder and skidded through, just gave him enough clearance ... LOL
  5. David Isaac
    There you go again misrepresenting what the document stated. Read the English. The document did NOT say that only 500 had made 1,000 hours with any intent other than to say that at the time of writing they were aware that 500 had made 1,000 hours. Six months later some more may have done 1,000 hrs and in five more years a few hundred more. It was a Statistical statement made at a time to point out the number that had made 1,000 hrs, nothing more.
  6. David Isaac
    Actually we have to assume this was a controlled stunt otherwise it would simply be illegal, but not necessarily unsafe. I don't see any problem with it ... Straight and level ... high speed ... CavOK ... precision flying .... what's the issue?
  7. David Isaac
    I don't know that much in terms of Aero engine crankcase halves. But if fretting occurred I would suggest the crankcase may be a right-off unless the mating surfaces can be machined and the crankcase tunnel line bored. Are you permitted to machine and then line bore aero crankcases? Surely if the crankcase is correct in all dimensions, any minor increase in clamping pressure would have zero effect on bearing clearance. If it did have an impact on bearing clearance, I would suggest the crankcase dimensions are incorrect. The bearing clearances should be statically set by the machined surfaces of the crankcase relative to the symmetry of the main bearing tunnels. Whats your thought on that Nev?
  8. David Isaac
    Ornis, I don't know what you are on but you keep quoting this figure in a very mischievous manner. The Jabiru document did NOT say that in 20 years only 500 engines made 1,000 hrs. This what is exactly what the document stated on page 9 of 13: "4 Service History At the time of writing: - The Jabiru 2200 engine has been in production for over 20 years in various configurations. - Approximately 7,000 Jabiru engines of various models have been manufactured. - It is estimated that around 500 engines have exceeded 1,000 hours TIS. - Annual fleet hours are estimated at in excess of 20,000 hours." How can you draw any failure inference from that????
  9. David Isaac
    It was a common method during the war and relatively safe if done correctly.
  10. David Isaac
    Is this just a general Flyin or SAAA organised?
  11. David Isaac
    All good points Col, the devil is always in the detail. In the 60 minutes case ... 1 days filming in Darwin, hours of detailed Camera Interview with Carl Stefanovic (and that was just me) ... all reduced to 14 minutes of air time. Fourteen minutes cannot do much justice to a complex issue. BUT on the good side the message did get out to many, there was a reported run on photoelectric smoke alarms at many outlets. Some is better than none. Stay safe and buy Brooks 10 year Lithium powered radio interconnected smoke alarms and stick one in every habitable room. I want you to live to a ripe® old age buddy.
  12. David Isaac
    This what is exactly what the document stated on page 9 of 13: "4 Service History At the time of writing: - The Jabiru 2200 engine has been in production for over 20 years in various configurations. - Approximately 7,000 Jabiru engines of various models have been manufactured. - It is estimated that around 500 engines have exceeded 1,000 hours TIS. - Annual fleet hours are estimated at in excess of 20,000 hours." How can you draw any failure inference from that????
  13. David Isaac
    FFS people, read the Jabiru document that Ornis posted properly. It was simply a statement at the time about how many had reached 1,000 hours. It in no way implied the other 6500 would not, they just had not at the time. That's how I read it anyway. It was Jabiru's own document.
  14. David Isaac
    You bet they are Nev ... LOL. Id go back there tomorrow if I could fly there.
  15. David Isaac
    Nothing new about slats ... dozens of aircraft use them and so do airliners.
  16. David Isaac
    Yes well I can remember in the 90s in Cambodia working with the UNITED and YWAM I was in a Cambodian Airways twin RPT (yes I did get that right). We took off from Steung Treng airport for Pnom Phen in a Russion turboprop about the size of an old Focker Friendship. No one put on seat belts and we loaded livestock and motor bikes in the back, I couldn't believe it. It took the whole bloody runway to get off. My mate a missionary up there at the time had aranged for me to visit the cockpit in flight and they put me in the right hand seat and let me bank the aircraft from a heading to heading ... How is that for a breach of regulations ... Hhhmmmm third world countries .. Life is cheap. I could tell you much more, but maybe I wont ... LOL
  17. David Isaac
    Funny you should say that Nev. I think I was so hyperactive (they give that a label today) that I could eat anything when I was sub 35 and just burn it off. I also considered I knew where the best pies were as well ... LOL. Not so these days. About 10 years back I lost a lot of weight under a 'Fit for life' plan life style and my associates all thought I had contracted cancer when I turned up for a meeting. Fact is I have never felt better than I did back then. I might have looked crook to those who had previously seen me fatter, but I had energy to burn. I have never been really overweight but the little I do gain does have a significant impact on my energy levels. I agree with what you are saying we food selection life style, we are very selective on what we eat these days and NOT on any form of medication. I still remember the advice that Pat gave me that day I popped in when the Drs had prescribed me Lipitor for my Migraine 'incident' that cost me my medical, best thing I ever did was get of that stuff, it had some nasty side effects on me
  18. David Isaac
    Thanks, excess weight is a real enemy especially to blood pressure. They say 10 Kgs excess contributes to 10 BP points, that is significant. I still want to be flying my old Auster when she and me are at 90, that is my goal ... 29 years to go ... Yahoo.
  19. David Isaac
    That's impressive Pots, I was 72kgs when I got married, all prick and rib they used to say, not much prick either ...LOL. I Am attempting to get down into at least the high 70s from mid to high 80s so your 5:2 fasting sounds interesting. Where can you get details on that?
  20. David Isaac
    Potts, it figures that you flew in PNG, I just had that suspicion because of your posts from time to time showing affection for the C180/185. I agree they are a mans' aeroplane, because you need some real physical strength. Mind you I know some girls capable of that, However I know what you mean by your comment. Steve, I remember Harry, I heard of the prank he pulled with nude jumpers one night. I lost it laughing, he must have been a real character.
  21. David Isaac
    I love it Nev.
  22. David Isaac
    Ha ha ... That is cause she is .... A woman ... LOL
  23. David Isaac
    As I have infamously said many times before there is nothing like being up on one wheel in a C185, 300GGs up your butt and wing down into a cross wind. They are awesome fun. It's a great sensation when the thrust pushes you back in the seat as you wind in the throttle, pushing forward on the column and then the tail pops up, it is like being Fred Astair on steroids. Great rudder response with that much power up, I love them. Having said that the c180 is probably my favourite, I did parachute ops in one for a while. But I still love the Auster, she is so much fun, I love her quaint ageing characteristics.
  24. David Isaac
    Yep, The J1B and N had a huge 37' wing but only 130 GGs with the Gipsy Major and were three seaters, but only if you get 2150RPM or slightly more on take off (2350 was max allowed for 5 mins from memory). The Super Cub had 180GGs, the C180 had 235GGs and the C185 had 300GGs ... power makes a significant difference on short strips.
  25. David Isaac
    Yes, BUT that will never happen again.
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