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Bruce Robbins

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About Bruce Robbins

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  • Birthday 12/24/1955

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  1. Bruce Robbins

    Guess This Aircraft ?

    Colyaer Freedom Bruce
  2. Bruce Robbins

    Spin Training

    Hallelujah Brother. If not Oval circuit, at least the Downwind to Final turn. I believe the FAA are evaluating the proposal, or if not are being lobbied to.
  3. Bruce Robbins


    Jetjr, This is what I was trying to post this morning before rushing off to work.
  4. Bruce Robbins


    Hi Jetjr, The vane is a modified version of the cobra head fitting that attaches the scat hose to the carby mouth on a standard Jab install. They have fitted intersecting plates that run the length of the cobra head, effectively dividing the tube into 4 sections. Normally you would install the cobra head so that the outlet sits nicely in line with the outlet from the air box, keeping the scat hose run nice and straight.Because it clamps to the carby mouth you can rotate it a little either direction. jabiru cobra head - Google Search
  5. Bruce Robbins


    ... that's the standard Jabiru crossvane mounted at the carby inlet.
  6. Bruce Robbins


    Hi Jaba, We recently installed a cross vane (from Jabiru) in a roller follower J230. We found that rotating the crossvane produced large changes in EGT behaviour between cylinders. After a fair bit of trial and error we finally narrowed in to a position that gave a nice even spread in both climb and cruise. Regards, Bruce
  7. Bruce Robbins

    CASA 292/14 - Conditions and direction about Jabiru engines

    CASA plain english wording! In the Instrument the restrictions apply to Group A, which is Hydraulic Lifter (Flat Tappet) or what they called Generation 2 in the report.
  8. Bruce Robbins

    914 power loss

    I have seen a Rotax 914 operating quite normally with a leaking carby bowl, but it is still possible depending on whether it's just leaking or the fuel level is too high causing flooding. I had a problem with similar symptoms on a 912 UL that turned out to be a faulty muffler. Of course that was the last thing checked, after we'd already turned the carbies inside out several times.
  9. Bruce Robbins

    Shame about the 109

    Just to clarify, there was a flying Buzz Bomb ( R/ C), and some static models. The flying model was re-cycled, but the static models were spectacularly destroyed for the entertainment of all the big boys and girls.
  10. Bruce Robbins

    Shame about the 109

    Classic Fighters ( this one) and Warbirds over Wanaka are similar shows, both bi- annual, but on opposing years, so there is now a top class show every Easter.
  11. Bruce Robbins

    Shame about the 109

    We'll done Ozzie, that's exactly what is was. The strong winds on the Saturday blew the exploding fuel onto the grass, starting a grass fire that required the attentions of a couple of fire trucks. Show was very well done, as is usual for all the Kiwi air shows I've seen. Some world class displays, and plenty of " almost close enough to touch" action. If you like WWI or WWII action, then block out Easter and head for New Zuland.
  12. Bruce Robbins

    Has anyone tried Bluescrew?

    Camping stores or direct from the designer bluescrew.com.au
  13. OK, thanks. Lucky I checked before preaching to the converted.
  14. Hi Happy Flyer, I can understand the icing, but how does C of G and trim affect the stall AofA ? Or are you just referring to the stick position? Regards, Bruce
  15. Bruce Robbins

    Yet another Jab down.....

    Just to clarify, The new Jab engines use roller Lifters, not roller rockers.