Gfry

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Everything posted by Gfry

  1. Gfry added a post in a topic New Rotax 670 Install   

    I wonder what hoops I would have to jump for a 670 in the UK.......
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  2. Gfry added a post in a topic 912 engine mount   

    When you find out let me know.  I am thinking about converting mine from a 582 to a 912.
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  3. Gfry added a post in a topic Avid Fuel/Gas Cap   

    right....so I found a perfect fit from a tractor parts supplier in the UK.  and it was mega cheap at £6.50.....about $8.  a bit of 1/4 inch copper fuel pipe and a drill bit and it was soon modified with a vent tube.
     
    https://www.agrilineproducts.com/fuel-tank-cap.html
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  4. Gfry added a post in a topic Flight Testing video of my MKIV   

    Interesting that with regards to yaw axis you say it flies straight hands off.....yes yes I know your feet are not hands but I assume you mean feet off as well?  I find it interesting as you don't appear to have a rudder trim tab.
    My MkIV has a rudder trim tab that is almost 90 degrees bent over!!  and still requires a bit of boot to fly straight.
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  5. Gfry added a post in a topic Engine Failure yesterday   

    Mikuni pump overhauled today.  It hasn't made a massive difference, its at least now a constant pressure and not flickering.  At 2500rpm it's 0.3 bar and full power is a tiny bit over 0.2bar.
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  6. Gfry added a post in a topic Engine Failure yesterday   

    Never leave the vent open as it pisses fuel everywhere once it has finished venting.............
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  7. Gfry added a post in a topic Engine Failure yesterday   

    So finally got round to some ground runs yesterday (after finding a new fuel cap).  I think the Mikuni pulse pump contributed to the failure.  Turns out at idle the fuel pressure was right on 0.2 bar and at full power was flickering just below 0.2 bar.  With the Facet pump on pressure was up at 0.4 nearly 0.5 bar.  So as soon as I switched off the facet pump and at full power the Mikuni was not enough to deal with fuel venting back out over the wing.  Doesn't explain why switching the facet back on did not restore flow though.
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  8. Gfry added a post in a topic Engine Failure yesterday   

    Makes sense to me
     
     
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  9. Gfry added a post in a topic Engine Failure yesterday   

    I think that's it.  I shut everything off before exiting he aircraft.
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  10. Gfry added a post in a topic Engine Failure yesterday   

    FredStork that is exactly right.
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  11. Gfry added a post in a topic Engine Failure yesterday   

    Here are some photos
     

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  12. Gfry added a post in a topic Engine Failure yesterday   

    Yep fuel pump was the first thing I went for.....
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  13. Gfry added a post in a topic Engine Failure yesterday   

    ok, I have 1 tank.  I have a stop cock between the main tank and the header and I have a bleed valve to drain the header which is what I assume you are all calling a vent? part of my pre-flight is to bleed/vent the header for 10 seconds or longer if it needs to clear air.  Once I was back on the ground and prior to loading on to the trailer I needed to drain what was in the tank as it was sloshing out the wing when they were folded.  So I stuck a jerry can under the header tank and opened the bleed/vent valve.......it to quiet a while gurgling and bubbling and filling up before it started to bleed out the bottom.
    Oh and I also have a fuel stop cock between the header tank and engine...roughly where the flapperon lever is.
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  14. Gfry added a post in a topic Engine Failure yesterday   

    I did  switch it on as soon as it started to splutter.  However it seemed useless as when I checked the header tank back on the ground it was bone dry.  My guess is the fuel venting backwards then created an airlock in the header tank.
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  15. Gfry added a post in a topic Engine Failure yesterday   

    Few comments on a fuel pump.  I do have a Facet fuel pump. Funny enough I just reached 1000 feet and switched it off, it was  then that the engine died..... within seconds.
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  16. Gfry added a topic in For Sale and wanted, you got it, I want it   

    Avid Fuel/Gas Cap
    Does anyone know where I can get a fuel/gas cap for my Avid?
    • 5 replies
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  17. Gfry added a post in a topic Engine Failure yesterday   

    MKIV Speedwing
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  18. Gfry added a topic in Close Call's and dumb stunts   

    Engine Failure yesterday
    Well I survived my first engine failure yesterday…. not quite EFATO. I departed Charlton Park at 14:15 and about 1000 feet QFE the engine spluttered, I made a 180 turn and by the time I finished the turn the engine died at 14:17. Pitch for 65mph put out a MAYDAY to all stations on Kemble’s frequency. Now you would think an Avid Speedwing (bit like a kitfox) would glide lovely…… Wrong. To maintain 65mph was 1200 foot a minute decent.

    There was absolutely no way of making it back to Charlton Park. I had to pick a field. The problem is all the fields had either telephone cables or power cable across them…apart from two, and they stretched the glide. So now I was about 600 feet and things up to that point seemed slow motion. After 600 feet everything happened so fast. It became clear the field I wanted was no longer possible and the only field now available was about 200 meters long, dome shaped, ridge and furrow very long grass and hemmed in by 8-foot hedges and a scattering of trees with a house in it.

    I clipped a hedge, but other than that was down safe and stopped slap bang in the middle of the field. At 14:20 I got out the plane and called Kemble on the landline to let them know I was safe with no damage to property or the aircraft.

    Now I remember that after the initial MAYDAY a helicopter said they were in the area and would head over to find me. I then gave a running commentary over the radio of what was going on until I was at 600foot. My last comment was I will call on the landline if I made it safe. Thing that got me is initially how slow everything seemed to go and then speed of event after 600 feet. All that was going through my head was “find a field” and “pitch for speed” over and over again, all the way until touch down.

    At about 100 foot I did not think I was going to make it and thought I was going in to the trees and hedges, when I clipped the hedges there was the field with a steep upwards slope right in front of me. I yanked back on the stick immediately which gave the softest of touchdowns I think I ever done!!
    What did I not do, I never switched anything at all, No fuel, no electrics, nothing. I don’t think I panicked, although I am sure my MAYDAY probably sounded a bit excited. A few mins after calling Kemble on the phone I felt really really sick and that passed after about 10 mins.

    What would I do different if it happened again? I am not sure I would/could do anything different to be honest.

    Ah yes what caused the failure. I am not sure yet, but the fuel cap had come off at some point in the take off. The wing was covered in fuel, but the tank was not empty by any means. So, I kind of hope that it was something to do with pressure and the fuel venting out the wing instead of getting to the engine. Now don’t shoot me for not checking the fuel cap as a pre-flight check…because I did. The fuel cap is an old vintage style cap like that of a cub or old car. How it came off is a mystery to me.

    I survived, property survived and the aircraft survived with a tiny hedge rash. Would be intrigued to hear comments and questions.

    Hedge Rash:

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  19. Gfry added a topic in Technical tasks   

    Lexan or Maragard
    Hi All,
    So whenever you talk about clear doors, everyone says Lexan. Lexan is just a brand of polycarb and pretty cheap as well.  However Margard is part of the Lexan product line which is a lot more expensive and much more scratch resistance.  Surely a more scratch resistant product would be better?
    Has anyone here any experience with using Margard instead of standard Lexan?
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  20. Gfry added a post in a topic UK Newbie   

    Yes it does have the tail wheel horns on the rudder.  In general fly's really well.  Few niggles like the flaperons are not rigged quiet right and the prop pitch is slightly off.....both jobs that I am working on tomorrow (20th March).  AOA was wonky on the port wing so winding out the rear strut by 720 degrees solved that one.
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  21. Gfry added a post in a topic WANTED: Avid door latches and handles   

    Sure did buy Simons.  Few little niggles to sort out, but in general a mega bargain.  Would be interested in any Avid parts you have.
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  22. Gfry added a topic in For Sale and wanted, you got it, I want it   

    WANTED: Avid door latches and handles
    Hi All,
    I am looking for door latches and handles for my Avid MK IV.  Currently it only has a handle on the port side door which is from a house door! and the latches on both sides are worn and barley catch.
     
    I am in the UK, but happy to pay for international shipping.
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  23. Gfry added a post in a topic UK Newbie   

    Possibly.  Still need a tail wheel.
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  24. Gfry added a post in a topic UK Newbie   

    I take it you did not form the slight bulge in the lexan that you used?  If you did, how did you do it?
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  25. Gfry added a post in a topic UK Newbie   

    Tell you what, lets go halves on a taildragger kit and you can have all the nose pusher stuff of my aircraft....I will pay the shipping.
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