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flight1

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Posts posted by flight1

  1. well what a weekend of quater finals all very good and entertaining games with the SA vs France being a very intense game with the only difference was that the South Africans had better bench of world class players to come on. Highly entertaining and I couldn't moan much about the refereeing either.

    And Mr Borthwick better have some magic plan at hand, it will be a tough challenge

  2. 58 minutes ago, Lipo Man said:

    I’ve had over 20 years working in the automotive industry.  It’s over a decade since it became obvious to me that a 100% switch to EVs was inevitable. It is in fact the opposite of putting our eggs in one basket. If you build an ICE car it is ICE powered for its entire life. If you build an EV it’s powered by whatever powers the grid - so it can get lower carbon over time as the grid shifts more to renewables. And when we start getting intelligent connections between these cars and the grid (so at times of peak demand the grid can draw power from the car batteries for a short period to cope with a demand surge) the cars actually help the grid rather than being the huge burden they might first appear. When every home has a big battery parked on the drive connected to the grid we no longer need gas turbine power stations sat at idle ready for power surges as we all turn on our kettles in the ad break…

     

     

    There is a few flaws in that the grid is nowhere near renewable capable it is going to take a least 50 years and trillions invested. The cars acting like 'grid savers' is a nice idea but it's no good if you battery is not full when you need to get somewhere, especially in a sudden emergency. the best way to overcome the grid demand is to build 80,90% or more off grid house all very doable with tech as it is now.

    Also every one is ignoring the eviromental distruction and carbon  produced by making current tech batteries. these batteries are  nowhere near the energy density require to power lorries and agricultural machinery. For city puttering around shopping current electric tech is ok

    Still we need a multi fuel/power approach .

  3. All I can see is a lot of uptalk and marketing, but of course time will tell.  What gets me is this tunnel vision type approach to this carbon problem and the finite fossel fuel dependency, we need to have a multisolution approach and vision (we can't have all our eggs in one basket?) I do believe Toyota is taking this approach

     

     

  4. Well toyota been holding off on producing electric cars due to the fact thay can see the failings of current battrey tech, and are betting on ammonia power engines.  no carbon in ammonia  so no carbon emissions.

    it's the future! or just one part of multiple solutions of getting energy with out carbon emissions

  5. Hi all can anybody identify which manufacturer made this Extra plane? I picked it up at a show with no details

    Wing span is 184cm (72.5 inch). the decal on the tail say St Augusteen /florida

    yes I should of put it together and taken photo instead of the indevigal pic's, but have stripped the wings and tail fin for repairs now.

    Hopefully someone can recognises it as it is a good few years old.

    Cheers?

     

    IMG_20230714_111423554.jpg

    IMG_20230714_111357025.jpg

    IMG_20230714_111440679.jpg

  6. if those datum lines are true to the section then it looks like you have wash in which is not a good solution. wash out  is good and can be achieved by either angle of attack of wing section or increased camber for the out sections of the wing. you need to check  sections  used.

    your friend had obviously worked this out as he had mentioned it being wrong.  ?

  7. well a few things I've learnt for silver soldering apart from practice as posted earlier is,  build a hearth to work on from Vermiculite sheet. clean where you need to braze well (stainless wire brush/emery/ pickle in citric acid etc) . have a precision flame on your torch . don't try to apply the silver solder before parts are both up to temp, you melt the solder with the parts to be soldered not the torch flame!

    For small parts I apply a bit of liquid to the area i need to solder then dip the part in the flux powder which sticks only on to the wet area  (spittle I found to be very good for this) then solder.  And importantly after wards clean the parts well to get the flux off by placing in hot water for 15/20min and then polishing /brushing off.

    there are other things to look out for too.

  8. well this is to be expected, pot life of west 206 slow hardener is 15 min at 25 c so not surprised that it went off in that time. It is actually hotter the ambient at the moment! We are so used to working at lower that optimal temperatures we do not realise the short time it can take, so get court out . and as said before spred it out thin on job to get extra work time

  9. My RX's can fit Futaba or Jr style servo plugs, So i buy what ever I feel like at the time.

    and as for a trainer standard analogue servos will do, no need to complicate things.

    As above buy from a known shop as a lot about are poor copies.

    Hitec 311 are fine and for a smaller budget try the K-Power P0600  .

    As for the latest futaba they are going to the s-bus compatible new range see Futaba SU300 which work on standard pwm RX's and the s-bus ones. The servos proberly are all going that way in the future.

     

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