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jetboy

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  1. jetboy
    The C172 with full flap takes for ages to reach the "as taught proper rotation speed" for takeoff so the nose gets held low until that speed is reached. By this time the mains are off the ground and its in a wheelbarrow situation. Plenty of entertainment for the tower. dont ask me how I know
  2. jetboy
    Which type of Facet pump is the problem? I have only had experience with the traditional ones which do not draw power when there is no outflow therefore dont require flowing liquid for cooling. of the ones listed at ACS the posi-flow might be one that needs a return line for constant flow as is the case for most cars with the in-tank pump and EFI fuel pressure regulated manifold? https://www.aircraftspruce.com/pdf/2017Individual/Cat17330.pdf
  3. jetboy
    Because the same spec filter is used in Toyota echo and I think some versions of RAV4 you can buy the genuine Toyota parts. Last time I checked they came in a box sealed with a hologram sticker so the dealer didnt want me opening them without paying the $32. The things to look for (after getting the thread and seal dimensions, ADV and pressure relief details correct, is that the internal parts such as springs, PRV etc. are metal not some brittle plastic which has been seen in those oil filter teardowns on utube. Every Ryco I've opened up as part of the inspection process has been with the metal parts. the filter paper in them has varied but probably not an issue now that its a 25 hr replacement item
  4. jetboy
    for starters Repco's ROF21 is what I've switched to but SCA now have their own brand now in two types - the high efficiency and regular. The Z386 was for a Datsun 1200 so should be available in some form. my original Rycos were made in South Africa and seemed very good but the later ones are too suspicious. Jabs come with Joywell or something like that now if you look on their pictures
  5. jetboy
    http://forums.whirlpool.net.au/archive/2237748
  6. jetboy
    Ryco Z386 has been manufactured in different places over the last 10 years. After the recall (only affecting Aussie product - not the ones sold in NZ by Supercheap according to them) I returned them and started using the Repco version The main users of these filters OEM was Jabiru and CAE - both of which I believe switched to other brands on the new engines
  7. jetboy
    There are actually 3 sides to the story to recap, here is the CASA side of the story Luckily so far no other Aviation Authority in the world has taken notice of the CASA actions if they had, the export of engines may have shrunk a lot quicker than it has.
  8. jetboy
    As an observer - we dont have these Senate pollies here - but I thought the pollies at least 2 of them did something positive about looking at CASA and there now should be a third pollie (Pauline uses a Jab doesnt she?) to deal to CASA in the manner required. Queensland Senator questions CASA over Jabiru Engine - Australian Flying It wasnt the pollies that saw Camit screwed, it was the CASA unfairly grounding of Jab aircraft and banishing of flight school aircraft from the airports which killed sales suddenly no more engines were required to be built by their contract manufacturer. CASA ought to have limited to withdrawing the type certificate for the affected engines until they are satisfied those conditions are met. The ASTM engines are not in their remit. Jabiru are just giving the finger anyway and boiling up an externally sourced product. I'm sorry the good guys took the hit so far but it seems timely that the Senate should be reminded to follow up on that inquiry they suggested. Ralph
  9. jetboy
    I havent seen the episode you refer - so maybe some context is missing Its important for a Jabiru owner to know what washers and loctite can or cant do. think flywheel bolts where they now use Nordlocks but the plain type not the belleville Nordlock X series which the Brits I think started using first. for aircraft bolts there is a 'washer' profile under the head so a washer is not normally used there but one is normally placed under the nut presumably to spread the contact area and prevent scuffing of the clamped parts when tightening. also the washer material and coating is important for corrosion control There is plenty of reading available about this in AC 65 manuals from the FAA so an experienced LAME would probably know more. star washers, spring washers, tab washers and belleville. AN series have thick and thin for adjusting the amount of thread clearance remaining inside the bolt as well as penny washers for spreading loads across wood or for shielding rod eyes from disconnection failures.
  10. jetboy
    Gustavo, please report how the replacement radio (Flightline?) works out. I have seen these available for a few years and they seem to be equivalent in most respects but lower price. From your diagrams it looks like the intercom enable wire will need to be added like for an Xcom760 schematic
  11. jetboy
    Rudder is usually stiff due to the centering blocks / bearing of the nosewheel You can add PTFE lube and / or smooth down the centering vee also the cable tension depends upon the nosewheel position so best set with nose clear of ground (tightest point) Left roll is most likely a normal effect of the elevator bellcrank being offset on the control rod Holding the stick left loosens both elevator cables, holding it right tightens them It is possible to reduce this by arranging the elevator cable separation bungee cord to tug the appropriate cable sideways A more direct method might be adding a bungee at the bellcrank I just got used to it......others have redesigned the whole bellcrank onto a stationary bearing
  12. jetboy
    Gustavo, you are probably better equipped than Microair to do the checks by the look of your workshop..... I have done similar investigations on these radios and the transponders - look for solder shorted tracks Yes I have seen this happen on a unit purportedly only serviced by the factory. If anyone can help with schematics that would be truly useful - to date the factory has not been cooperative so i still have a T2000 being used as a wheel chock Kyle if you can help maybe the circuits could appear on Mods.DK or some neutral place from memory, the transceivers series modulate the RF transistor, so the modulating transistor supplies about 6V to the RF final stage when in transmit and +-5V from that when speaking. If fuse is blowing only during transmit, that is the area to check Ralph
  13. jetboy
    30 psi and top them up every other year this is for the big Matco wheels originally came without tubes but now 2 of them have tubes inside - the tyre has "tube type" printed on it
  14. jetboy
    and dont forget the gumboots
  15. jetboy
    There is a paragraph in the manual about alterations that may be required if using old type mics, or non aviation standard mics. There is nothing special about ANR headsets on the Microair, same rules of engagement apply to any installation.
  16. jetboy
    The coil packs on Jabs are at their hottest during taxi and shutdown after flight because of heatsoak. They are mounted behind the cylinder cooling fins. Since about 2006 they are required to have blast tubes fitted to help cooling them, but these are ineffective on the ground. They also changed the brand of coil pack which reduced the failure rate so its uncertain whether the cooling tubes are needed.
  17. jetboy
    for the engine to 'dead cut' when you test failed the L mag it means either the R mag was faulty or all the plugs run from the R mag were fouled and none of the plugs from the L mag were affected. These "mags" are just a coil / ignition pack for lawnmower engines and some of the jabiru supplied versions will fail when hot and work again when cool Replacing the R mag after these 2 occurences was the proper thing to do I carry a spare in my aircraft because it can take time to get a replacement. havent had to use it yet
  18. jetboy
    The best handling notes I've seen - although dated - here CH701 STOL
  19. jetboy
    As for the issue of mag failure, with the Jab its only lawnmower coils and they can and do fail from time to time, sometimes coming right later. Some are prone to heat failure and the current part is version #5 it seems you did the correct checks and returned to the hangar If its a school plane then the experts can sort it
  20. jetboy
    on the Jab/Camit Yahoo group there is a link to the LAA (UK) approval for some types. https://xa.yimg.com/kq/groups/92172319/1960746753/name/SM14337+Lithium+batteries.pdf Ralph
  21. jetboy
    or a GPS running
  22. jetboy
    Does this mean that UK CAA have dropped CVD (colour vision) requirements for PPL ? CASA are embarking on a crusade in the opposite direction
  23. jetboy
    If you have these instruments - particuarly the "turn coordinator' type often fitted to cessnas, it would be a good idea to get familiar with the operation. i prefer the bat / ball type turn & slip, as the aircraft shape indicator on a turn coordinator is not naturally intuitive especially when used in conjunction with a artificial horizon - where the aircraft marker is fixed and the ground/sky rotates instead. and the turn coordinator, as fitted in the Cessna I trained in, the little aeroplane moves in the opposite direction to the true orientation in a turn, if it is powered off. You check these things on the ground before takeoff, to confirm correct function. Dont ask me how I know this..... ralph
  24. jetboy
    If you have switched on an electric powered gyro instrument then it will still appear to be working for a period of time after its switched off. That may be the reason you think its working without the switch.
  25. jetboy
    the best flight manual I have seen is CZAW Zenair CH701 STOL edition 4- th CZ - March 2002 there is a similar one Zenair CH701 SP 4th edition CZ- January 2003 but this is full of errors they were adapted from the Zenith manual which has never been updated.
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