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gandalph

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Everything posted by gandalph

  1. gandalph
    I believe they do.
  2. gandalph
    A colleague with much more expertise and experience in these things than me has suggested that the cylinders appear to be a pressure casting and possibly/probably a derivative of 242 alloy and so good for about 250C. An improvement on the current alloy's temperature handling capability. He expressed some concern about the finning arrangement and suggested that it is likely to put the exhaust valve temp up, unless they've gone for high-conductivity valve seats. The higher temp is going to put the oil temp way up, in the rocker boxes; so they will need to increase the oil flow greatly . He was not very optimistic about this development saying that it will simply move the failure points rather than eliminating them.
  3. gandalph
    The breadth of information available here is truly astounding!
  4. gandalph
    Nev, at post 282 you've got 6,666 likes! You have the mark of the beast and then some! You are now fully qualified to breath fire and brimstone over us all. Old K, you're gonna upset the lady captains with thinking like that.
  5. gandalph
    ROFLMAO!
  6. gandalph
    Geoff, I obviously read into the last sentence more negative sentiment than you say you intended. For that I apologise. Plus I wouldn't want to rile more than one Queenslander at a time. You asked how I could disagree. That's easy, I'm old and curmudgeonly.
  7. gandalph
    I agree with everything you've said Geoff bar your last sentence. but we probably have differing opinions on that.
  8. gandalph
    OK I will. You asked how many OEM's use Jabiru? My answer: I don't know and I don't really care. There I've answered you, how about you do that same by offering something to back up your assertion that D's are "vastly superior" to Jabs, instead of trying your old and tired diversionary tactics? Edit: I misquoted FT. He rightly pointed out that he didn't say Jabs were vastly superior to Jabs. He said they were: : "Vastly more successful than Jabiru by any measure." A nice pedantic point there FT , but I'm still interested to see how you back that up. Gunna give it a try?
  9. gandalph
    True Geoff, But if (when?) the first one fails, their failure rate per number in service, or hours flown will fall through the floor. But even then, the stats won't give a true (or useful) picture of the engines service reliability. Still waiting to hear from FT though.
  10. gandalph
    Mate, answering a question with a question, you'll need to do better than that. You're the one that made the statement that the D motor is "vastly superior" to Jabiru's, not me. I'm not knocking the D, I'm just inviting you to justify your assertion. How 'bout it?
  11. gandalph
    I'm curious to see what metrics you use to support that assertion FT. Care to give it a go? Or are you just going to continue to sit back and throw carp? Same old, same old.
  12. gandalph
    Yup! & like the other thing, everyone has one, some are just bigger than others.
  13. gandalph
  14. gandalph
    Ah. Sorry, I misread your meaning of alternate. I thought you meant it in the wider sense of an alt engine. My oops.
  15. gandalph
    It is. But the sentiment In the chorus keeps cropping up here. ;-)
  16. gandalph
    Well , if I changed the word "fitting" to " fettling" I would suggest almost all of them could be avoided. The original post in this thread referred to a problem fitting LC heads to a Jabiru engine and FT asked why not fit Rotax, I Would suggest that replacing a jab engine with a jab engine (like for like) would need none of those steps I mentioned apart from , obviously, fitting the thing. As a cautious person, I would check that the plumbing for air, fuel and exhaust remained suitable and the w&b remained as before and complete all necessary paperwork.
  17. gandalph
    Ah Merv! Still singing the same old Newcastle song?
  18. gandalph
    Well there's always the problem of engineering approval, fitting, plumbing, weight & balance......
  19. gandalph
    Fo For example:
  20. gandalph
    Well they do say that in light twins, the second engine just flys you to the crash site. As for first hand discussions, I guess it all depends on which professionals you have the discussions with. Not saying your , or their opinion is invalid, just that it's an opinion, Everyone has em.
  21. gandalph
    Sorry if you feel that you got "slammed" I didn't see it that way. Some of the views expressed on this site can be pretty polarized (or seen by some as polarized) but that doesn't always mean the people are playing the man not the ball. but it can be a rough and tumble playground sometimes. You may get to recognise the barrow pushers, bullies, trolls and naysayers if you stay around long enough. You may also get to recognise those who have some experience and knowledge to back up their posts. I got a bollocking from one well known member not long after I joined because he thought I shouldn't post (other than to agree with his pronouncements of facts) because I was so new to the site, and that if I stuck around for a while and kept my mouth shut I would come understand what was right and what was not. Screw that! Pick yourself up, dust yourself off and keep posting.
  22. gandalph
    Bother Phil, please bother.
  23. gandalph
    OME asked why the information blackout. Could it be that there are recreational aviators out there who don't subscribe to this site?
  24. gandalph
    Oops! Just realized I spelled Asmol's nickname wrong. Sorry. No disrespect intended Asmol.
  25. gandalph
    I know, Alf. Just messing with folk about the dangers of not fully unpacking the stats.
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