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deadstick

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Posts posted by deadstick

  1. I thought it w well organised, a great location and the seminars that I attended were great. This site has great potential, the carpaarking was unfortunate but out of RAA's control, the fee for use of the parking paddock was sprung on them the week before the event I was told. The police wanted a four figure sum to cover their presence as well. I had no issue paying $10 for a close park any way, spent ten times that in the open bar area whilst watching the P51 and Yaks do their thing. I really enjoyed it and hope more people get behind iit next year.

     

     

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  2. Hi, want to start an info sharing page for the 912is in a view to helping diagnose issues etc.

     

    Had a strange issue, pilot tried to start 912is with a low powered battery, no joy. Upon replacing the battery he found that the Engine management system would not turn on, this caused all systems to not work, fuel pump, start relay etc. could bypass them all using the emergency back up battery switch however the EMS still would not display. Fault finding the system, I kept coming back to the EMS unit and upon removal I could hear a rattle like something loose inside. After speaking with the manufacturer it turns out that trying to initialise the EMS with less than 6 volts causes a small capacitor that's soldered to the board to heat up and de- solder itself. So always keep your battery charged or start the engine with the backup battery armed and switch it off post start.

     

     

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  3. Has any one out there had personal experience with the reliability (or otherwise) of the abv engine in an experimental aircraft? Am deliberating on whether to rebuild a failed unit here but only see American comment on the internet. Any info or details leading to discussion with any Oz operators would be much appreciated. cheers Riley

    Bubbleboy is installing one in his pietenpol.

     

     

  4. With the 3 or 4 standard ones I have seen fitted to J230s, I agree perform quite well but at the cost of 10kts to cruise speed - consistent with a finer pitch.

    Hi frank, that wasn't my experience I picked up a few knots in cruise. They are a few degrees finer IIRC but I believe the improvements come from the blade profile and the more rigid build.

     

     

  5. Hi, just installed a set of the new 3/8 through bolts in a customers 2200, the machines groove at the centre is the harmonic mod.

     

    image.jpeg.f00271074397c473e623b6fe1f55a119.jpeg

     

     

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  6. Was an aviation representative from the Opposition (or minor Party) there? Having the current (albeit lately arrived) Minister present was good, but with an election coming, and no absolute certainty as to who will form the next Government, it would have been nice to have our concerns aired before all Parties likely to form it.If the Minister heard the Chairman say that CASA was dysfunctional, then one hopes that someone has been told to get his bum off the Chair and start laying in the boot to everyone in the Authority.

     

    We live in Hope.

     

    OME

    Speaking to ben Morgan later that day he did invite the opposition minister but didn't get a response. Apologies for the spelling above.

     

     

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  7. I was their all day, the brief from RAA at 10:00 was great, topics on the constitution, administration streamlining, Jabiru ( sue woods was there and it was hinted that there will be a release on this very soon) sport pilot, the new tech manual and a multitude of smaller issues. I have to say I'm very impressed with the RAA team that we have, the job that they are doing and the direction that they are taking us.

     

    The industry meeting was well attended, the host ben Morgan CEO of aviation advertiser, was very articulate and managed to keep it on topic and track most of the time with very few displays of bias! Barnaby Joyce admitted firstly that he knew very little about avaiation but sincerely wants to help. The minister was much the same and recognised that he has the power to direct CASA to do whatever is nessecary basically stated that he wants to help if he can but only being in the job for 10 weeks he is not fully across the topic ( he arranged a meeting with the heads of aviation industry that were present) the chair of CASA's board admitted that they are dysfunctional, admitted that they are applying band aid fixes to a variety of topics and initially would not budge on the implementation of ADSB until he was shown how self serving and foolish implementing such a system is before the people that manufactured it just to show the world that we were the first! Interestingly to cover Australia there will need to be 500plus ADSB receivers, they only intend on putting in 97 just to cover the airline routes!!! A lot of people had their say, some coherent and some rambled but overall the outcome was positive in that the minister witnessed the issues and the admission by CASA that they are not effectively doing their job and pushingthe industry to the point of collapse.

     

     

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  8. The form is buried in the RAAus website. I am aware that our Tech Manager is including a condition on (at least some) new aircraft CofA's that he issues that all flights be recorded on this form. In effect he is slowly implementing this as a mandatory form to use. I support this move, given the lack of adequate records and ability to track required maintenance that I observe from time to time.

    I've been using this form to highlight scheduled maintenance since 2010 every aircraft I service gets one. all aircraft must be maintained to a schedule, for home hilts you can chose one from CASA's list A or B, and this must be documented. For LSA's it's the manufacturers schedule.

     

     

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  9. I reckon we could do much better in RAAus at very little cost by using volunteer second inspectors. This is not my idea, Mike Busch says big-time manufacturers use inspectors all the time. He says there are more man-hours inspecting than there are building.GFA uses the second pair of eyes idea on annuals and also on rigging a glider.

    Then Turbs said how motor-sport has been using this idea for years too, and it worked well.

     

    What I would like to see is a trial where it was not compulsory but you could volunteer to be inspected. The volunteer inspectors would need to become qualified... the gliding and motor-sport people have this in place. We could too.

     

    I would bet that after some time, the second-inspected aircraft would show up better. At least they would be far less likely to have the horror stories that might be used to ban owner-maintenance.

     

    Before I first flew my kit Jabiru, every visitor to my hangar was asked to do an inspection and yes there were things noticed.

    Hi Bruce,

     

    All L2's should be using a secondary inspector or a duplicate for flight critical systems. There in my experience speaking with L2's is no confusion on this topic. You are right to seek inspection on your home built and as an L4 I find it surprising that it was no mandatory before registration.

     

     

  10. It seems wrong that an L2 cannot specialize in an area such as fabric repairs, if they have to sign off on the whole aircraft.Doesn't make sense to me.

    Hi, they can and do so. The tech manager in conjunction with a maintenance evaluation board get together and review L2 applications. The experience base of the candidate is evaluated and limitations if needed put in place. Some L2's are limited to a specific type or require work experience and a log under the guidance of and experience L2 or LAME. I was already a LAME when I applied for L2 and was still given a 12 month supervisory limitation and had to apply with documented evidence and recommendations for that to be lifted. My point is there is a robust system to determinate a candidates limitations if any.

     

     

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  11. I have seen a case like this tested to the legal advice stage in RAA ( didn't go to court) , and the responsibility came to the owner of the aircraft to ensure that correct maintenance was being carried out. There is a line in the OPs manual that states it's the owners responsibility. As far as an L2 signing to say the aircraft is airworthy:- they are not and cannot certify an ultralight to be airworthy as they are not deemed to be, have a read here:- ( skip to placards and warnings) https://www.casa.gov.au/sites/g/files/net351/f/_assets/main/rules/1998casr/021/021c42.pdf

     

    ( didn't check currency)

     

    What an L2 is signing for is that they have performed maintenance to the manufacturers requirements laid down in the maintenance manual by delegation of the RAA tech manager.

     

     

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  12. So it was the float height, that's great easy fix. Don't ever use anything other than the gasket to seal the bowl. If it has been over tightened and warped it needs replacement with a serviceable item. Find a Rotax 914 experienced L2 or LAME in your area and get them to cast an eye over your work, it's amazing the things a second set of eyes pic up.

     

     

  13. Depending on the hours total time you will find that you have to adjust the floats due to wear on the needle and seat. I do exactly what you have described, hold the float up and have some one turn on the pump. If it does not let fuel through you will have to adjust your float height to put more pressure on the seat.

     

     

  14. If the floats are set correctly the fuel level in the bowl should not be at the gasket join. to test this remove your bowl gasket, refit and turn on your pumps if it overflows then the floats are not right or the seat is U/S. the 500 rpm spool back I have seen on a few occasions with this engine and it has always been TCU calibration or wastegate calibration related, there is also a bleed hose located on the right upper intake plenum that feeds a pressure signal to the rising rate fuel regulator, these have a habit of splitting at the join and the result is eratic fuel pressure under load, usually presents as an engine cut when it goes on turbo. the potentiometer in the carb tells the TCU aht percentage of throttle you are at and correlates this to a programmed atmospheric pressur inside the manifold, if its not set right you get a boost spike and the TCU tries to protect itself. when you downloaded your TCU data how many boost exceedance events did it collect?

     

     

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  15. Couple of things from experience,

     

    1. Your floats are not set correctly or your fuel metering needle teflon tip is worn, ( there was a batch of floats that ere replaced under warranty due sinking).

     

    2. I suspect that the throttle position potentiometer needs calibration, to do this ( and should be done whenevr you balance the carbs) you need software and a dongle.

     

    3. The TCU ( turbo control unit) has a logging facility that record exceedances and faults suggste a download and view of that data would be first step.

     

    If you are anywhere near Tamworth NSW, I am happy to plug into the TCU and check it out as well as set the carbs up.

     

     

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