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About bobcharl

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    Well-known member
  • Birthday 23/05/1945

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    Marrar, NSW
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  1. Thanks Nev. Have checked these and they seem to be fine. Onetrack, Thanks also, if all else fails this may be a good fallback position. Bob
  2. Thanks for the comments guys. The installation uses a mechanical fuel pressure gauge. D/U, have been through all the things that you mention without success. T88, you may have picked it. Seems very logical to me. I am away for the next month, but on return will check this out and post the results here. Thanks again, Bob.
  3. Would appreciate some advice re the following: At around 200 hrs the fuel pressure in my Sav started a rapid pressure pulsation. Floods suggested it may be to do with the location of the vent tube from the pump and suggested some fixes, none of which worked. In desperation a new pump was fitted (supplied at no cost to me) and the issue was solved. However 50 hrs later the problem has re-emerged. Floods are at a loss to suggest a cause. Logic would indicate that it is not to do with the installation given the outlined course of events. Does anyone have any thoughts as to what is going on? Bob.
  4. bobcharl


  5. Would love to see the Sunday email re-instated. Bob
  6. I never, ever use full flap for takeoff for the reasons that JG3 details above. However, rightly or wrongly, I always use full flap for landing except in xwind conditions. I don't find any control difficulties and it seems that touchdown speed is a bit slower which is a plus on my could-be-smoother farm strip. Also seems to be easier to keep the nose wheel off at touchdown as compared to one stage of flap, and I think that is important with Savs (as well as lots of others). Bob
  7. Hi All, After attending the members forum I am of the same understanding as XC Buzzard. Would not have minded if parking fees were going to Lions or Men’s Shed.Seems the attending motorists were the soft target. Enjoyed the event though, and would attend next year, even if there are improvements that could be made. Bob
  8. Have just been to AirVenture for its first day at Cessnock. Because of the weather I decided to drive rather than fly. Rather surprised to be hit with a $10 per day parking charge. Did not know anything about it, did anyone else? Argued my way out of it but do not like my chances of the same tomorrow. Be prepared. Bob.
  9. Hi OME, Your quote "Not so sure about this - the 1 mm/87 psi spec refers to a very upmarket, probably aviation specific, leak down tester that has a slightly different operating mechanism to the common or garden EBay $30+ type." is really the nub of my query. It seems to me that the orifice size would need to be matched to the engine side gauge in the case of these types because the only ones I have seen have this gauge calibrated in % leakage rather than pressure. Do you think altering the orifice as you have would destroy the relativity between it and the % gauge, requiring a re-calibration of the gauge? What are most Rotax owners out there using, as this being done every 200 hrs must make it a rather common procedure? Regards, Bob.
  10. Thanks Bill, I have looked at the Ebay adverts, but how do I know if the orifice is Rotax specification? Bob
  11. Anyone out there have an unwanted leak down test kit to suit Rotax 912 for sale? Please reply on thread. Bob.
  12. Yes PM, agree with your thought on the quadrant system. Have asked a few people whom I thought may have known, but none have been able to tell me why it was abolished. Bob
  13. Hi Ian, I no longer get the weekly email re weeks most popular threads. Will I get it from here on? Regards, Bob
  14. Hi Mark, Read with interest your fuel gauge project. But please put me out of my misery. Given that pressure increases with depth would the reading obtained with, eg. the four tanks half full and all turned to on not be the same as with three tanks empty and turned off and one tank half full and turned on? I cannot figure how extra the fuel in extra tanks would alter the pressure. What have I got wrong in my little brain? If it would work it would be great. Cheers, Bob
  15. Hi k74. When younger and first need short vision assistance I chose half frame glasses and loved them. Excellent for flying. As I aged and needed long vision correction as well I changed to bi-vocals and am happy with them. Re some of the comments above: Yes you do have to tilt your head but this becomes an automated response and ceases to be an issue. Progressive lenses seemed to restrict the peripheral vision somewhat, don’ t think it was imagination. Lens coatings, according to my optometrist have a uv reflective capacity close to most sunglasses but does little for glare, which does not bother me. Whichever you chose, be patient and careful. They will take time to become accustomed to. Bob.
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