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Tex

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Posts posted by Tex

  1. Your welcome Sam.

     

    OK I have deleted some of what I just wrote because I recall you have flaps, so what I wrote was completely irrelevant

     

    Try going to idle on mid down wind and not using power until the touch and go (though test your throttle and engine response on final in case you need it in a hurry!) WATCH YOUR SPEED IN THE TURNS.

     

    Get out of the 'GA' circuit mentality... learn glide approaches (if you were in a 582 then more throttle work is required to keep the oil flowing and engine at temp.)

     

    012_thumb_up.gif.cb3bc51429685855e5e23c55d661406e.gif

     

     

  2. Thanks for the video Samuel! Always keen to see Drifter videos.

     

    Now I am no instructor and YMMV but once I am in the circuit or joining (overhead or otherwise) I set my circuit up so that I have glide to the airfield at all times, just as a matter of habit and safety.

     

    At least from mid down wind...I continually ask myself the question "if the fan stops can I make the airfield?" I still have a spot picked (usually short) on the strip and aim for it.

     

    Quite frankly if I was high, I quite enjoyed slipping in to lose height and hit the spot, which is a good skill to maintain IMHO.

     

    Thanks again!

     

     

    • Agree 2
  3. My saga continues. The fuel pump assembly has been replaced, the Engine Control Unit software updated and a high pressure fuel sensor fitted. Tests on the ground indicated that without the engine running the fuel pressure was within limits. With the engine running the fuel pressure dropped below the minimum limit. As the throttle was increased the pressure dropped further. Maybe that was the cause of revs dropping when airborne as the throttle was opened and increased when the throttle was reduced.I have suspected the fuel filter for some time and am waiting on a replacement.

    Nothing to do with my problem but as an aside, Pipistrel are now going to fit future aircraft with a fuel pressure sensor. The benefit in having the fuel pressure displayed to the pilot is that if an engine starts to stutter or run in an abnormal manner, a glance at the fuel pressure will either rule out fuel being the cause or indicated the area of the fuel system to resolve the problem - change tanks, turn on ancillary fuel pump etc. On a Skyview display, a warning of fuel pressure being outside limits will be given and could give the pilot time to take corrective action before the engine does fail.

    Sorry just coming to this thread very late and I see you mention Pipstrel... have you seen their forum here in OZ where this came up

     

    Just a brief quote "There was a fuel pressure reading of more than 60 psi (I believe that normal fuel pressure is about 45 psi) with one pump engaged, and with both pumps engaged, the reading was more than 80 psi. Examination of the fuel regulator, a substantial quantity of black particulates was found in the filter to the point that fuel flow was restricted. The filter was replaced, the black gunk was removed, and at that point fuel pressure returned to 45+/- psi with one or both pumps engaged."

     

     

  4. You will also get what is often described as the "Drifter Waffle" at certain angles of attack, especially in climb I have found, when the air over the wing and then into the empannage cause the aircraft to get a real wobble coming through from the tail... I don't recommend looking back... as when you see jut how much the tail is wobbling around it is quite disconcerting!! 022_wink.gif.2137519eeebfc3acb3315da062b6b1c1.gif

     

    If it is just the air filters hitting as you seem to be describing... perhaps a different shape of brand of air filter will fit better?

     

     

    • Like 1
  5. Samuel the problem with using a camera (and I assume it is digital) is that you will get interference from the engine and vibrations that distort the video...usually comes in waves.... then also, how do you know that the movement is not actually in the camera mount and strut.

     

    Looking at what I think is the 'shaking I think you are talking about (looks like the wing it self moving back and forward) this might explain it. You will also always get some sort of harmonic resonance at different RPM that will cause vibrations, some worse than others whether 503 582 or 912. You need to be satisfied about it though just making some observations AND Of course hard to tell from the other side of the world!

     

     

  6. Anything sold in Australia is done so under the TPA of 1974, you have rights.

    TPA was superseded 3 years ago.... Competition and Consumer Act 2010 (Cth) Sched 1 is where the action is. Same rights though:thumb up:

     

     

    • Like 1
  7. Hi Skee, I would add some kind of standoff between those fuel lines crossing over and touching each other. Either another zip tie wrapped around the one holding them together (between the two lines) or lay a small piece (5mm) flat of fuel line between them and then put the one zip tie through that to hold them. I am always surprised how much wear you get when hoses touch and can rub.

     

     

    • Informative 1
    • Caution 1
  8. Being an aircraft sheet metal person, I would love to get hold of some engineering drawings for the drifter, the Dalby people said they would have them, but stored deep in a container, and weren't interested in digging them out. Once we have some specs, sourcing bits will become easier.

    What about the Wayne Fishers designs, did he get them on paper - he had just gotten some sort of approval for one of his latest designs I understand...

    IMHO the flagship really is his 912 short winged WB version. It simply has everything you (well me at least) could want want in a Drifter. Ticks all the boxes.

     

     

    • Like 1
  9. Yeh I was thinking the same thing looking at the TOSG site... I love the enthusiasm with that, admirable and desirable. The facilities are already available AND the easiest solution is to use this great resource here: via this user group. From experience... maintaining a web site takes a whole lot of work. Just keep these threads alive use the facilities available through here with appropriate and defined placement as required.... isn't that what this site is really about?

     

     

    • Like 1
  10. G'dayI'm based out at Tara atm. But as soon as 25 hours is up I will be moving around a fair bit to get plenty if time and experience in it.

     

    Well I'm not an expert but the docs I got with blade say that true diameter is 66" but the serial number has a 68 in it. I have read in other posts that some manufacturers (or just Bolly) knock 2" off the diameter - not sure for what reason though.

     

    I will run a tape over it to see what the diameter is.

     

    Hopefully see you on the skies around SEQ one day soon.

     

    Cheers

    You know my number if you need someone to hold the maps!! 002_wave.gif.62d5c7a07e46b2ae47f4cd2e61a0c301.gif

     

     

  11. Don't hold your breath! They had an extremely knowledgeable and very capable person working at their factory (who could easily have been producing Drifter aircraft), doing other maintenance and the like through 2009-2012. I don't think they really have any interest in producing Drifters anymore.... would be very surprised if they did start rolling them out. Shame! 013_thumb_down.gif.ec9b015e1f55d2c21de270e93cbe940b.gif031_loopy.gif.e6c12871a67563904dadc7a0d20945bf.gif

     

     

  12. The sunlight is the worst, they just heat up too much. Definitely take it out of the case... as those above say keep it out of the direct sunlight and/or provide ventilation.

     

    Mine would shut down when in direct sunlight in the Drifter on the ground but once airborne never a problem. I had a vent that was directed EVERYWHERE! 012_thumb_up.gif.cb3bc51429685855e5e23c55d661406e.gif

     

     

    • Like 2
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