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Keenaviator

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Posts posted by Keenaviator

  1. Sorry Phil but if you are suggesting the 'powerful rotational force' is caused by prop wash, you are wrong. I fly hang gliders and paragliders (no engine or prop) and these can produce very strong 'rotational wash', also known as wing tip vortices. These vortices are caused by spanwise flow of air along the wing from root to tip. When it leaves the wing tip it does so in a spiral a bit like water going down the plug hole of a bath tub. If you fly in these vortices you may experience a strong rolling force which may cause your aircraft to roll substantially. If conditions are very still these vortices can hang around for quite a while before they dissipate. This is why it is advisable not to land too close behind another aircraft.

     

     

    • Agree 2
  2. I had the ICA-200 in the Starlet and it performed faultlessly and still is as far as I know. I bought this radio from a mate who was upgrading to an ICA-210 in his Jabbie. It worked well and had its own intercom built in therefore was better for the 2 seater. I believe it slid straight into the same cradle as the 200.

     

    Laurie

     

     

  3. The build has slowed somewhat since I returned to work :( but that's life and makes you appreciate the toys a whole lot more. I'm about to paint it and once that is done the final assemble won't take long. I also need to get the registration organised but don't envisage too much trouble there considering it's a recognised aircraft. I reckon you and Fr John will have 10 knots on me in cruise - I suppose I'll just have to blast off a bit earlier than you blokes.

     

     

  4. Sorry Phil, it is the design of the wing and the draggyness of the trike (causing it to fly at high angle of attack) which is producing the vortices.I say again : http://www.trikepilot.com/magazine/read/wake-turbulence_609.html

    Regards Bill

    It's about time someone referred to the so called 'wake turbulence' by its correct term - wing tip vortices. Thrust has nothing to do with it and the power of these vortices should not be underestimated.

     

     

  5. The engine has 85 hrs , prop has been wedged fine and the engine would over rev

    It sounds like they pitched it up a bit which is a good thing. Now you shouldn't be over revving and using a bit more fuel for another 10 knots is to be expected - the engine is working harder now for the same given rpm.

    Laurie.

     

    ps, did you know Fr John has his engine out of the plane and a big closer to home? We took it out a couple of weeks ago and mounted it on a stand for the reassembly.

     

     

  6. Just an observation which may be incorrect (it happens), but it was originally a pusher but now in the hanger it looks like a tractor config.. if correct, is there a reason?

    Might have to check your observation. Don't you notice the turret sitting above the cabin?

    A difference I noticed is that the turret is now a single faired unit whereas before it was standing on four faired tubes.

     

    Also, what appears to be a spinner is probably a spinner moulded into the now front of the cowling probably to mimick the shape of a standard Jabiru cowling for cooling purposes.

     

    Looking very nice Mike,

     

    Regards, Laurie

     

     

  7. fuel is 8 to 10 ltrs per hr. #2 #4 are lean as plugs white, the other two are black rich, its not jetting its the distribution through the plenum box I think, more is going to 1 side than the other. i have searched the net and I think a cobra head with the cross in it or a plate baffle should improve the distribution to these pots going by others and various things I have read, this is my next move. any one had experience using these?

    image.jpg.ac2fadfd20fb1efb113a7d4625c49ba6.jpg

     

  8. Love the way he keeps tapping the altimeter, knows he needs it to be accurate towards the end. Great piece of flying in my book....he's an avaitor for sure !!..................................................Maj...012_thumb_up.gif.cb3bc51429685855e5e23c55d661406e.gif

    Either that or he didn't have a vario or vsi and the best he had to see whether he was climbing or not, ie in the thermal, was to often give the altimeter a tap to see which way it was going. I suspect he would have no need for an altimeter to work out whether or not he was going to make it to his landing area.

     

     

    • Agree 1
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