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  • Steve Uzochukwu
    replied
    BioniX Anyone?

    Went for a flight today near Paris with a French instructor. Bionix 15 with Tanarg trike. Very simple but very effective trim.

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  • gwyn_carwardine
    replied
    BioniX Anyone?

    A long time and no news on the Bionix. What's happening? Had a look on the Flylight site and no news and the mag says still "test"... any idea when it will be available?
    Thanks

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  • Paul Dewhurst
    replied
    BioniX Anyone?

    Sorry Andy, just noticed the question in your post there. yes there will be one at the NEC.

    Paul

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  • Guest's Avatar
    Guest replied
    BioniX Anyone?

    The build time sounds good will there be a bionix at the NEC, if there is then i will have a run down. I like to see the £ rise against the Bl--dy euro. Andy

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  • gwyn_carwardine
    replied
    BioniX Anyone?

    So fot the Bionix I'm guessing you guys need to sign it off once built? (or just an inspector?) in which case I'd likely want to come up to Sywell for a couple of days, book into a B&B and build it in the corner of your hangar! Stay for 2 days and then take it home all done. Now just to find that extra bit of cash... ...

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  • Paul Dewhurst
    replied
    BioniX Anyone?

    Bionix about 12- 14 hours. Tanarg about 100 ish - depending on how mechanical you are and how you tackle it - for instance one hour bursts and 30 mins of that will be lost finding tools and figuring out what to do next from the manual. 4+ hour sessions more effcient - but then again an hour every night of the week might will be quicker to finish than 4 hours every fortnight!

    Paul

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  • Guest's Avatar
    Guest replied
    BioniX Anyone?

    Hi Paul what is the build time for the bionix. Thanks Andy

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  • Guest's Avatar
    Guest replied
    BioniX Anyone?

    This is a quality machine at a price that shows good value - If that sort of figure can ever be regarded as such.

    You just need to build it! Pleasure for some I know but my opinion is itís a shame we canít buy a European built machine straight off the production line with all the back-up etc that entails.

    Shame Air Creation doesnít get UK approval for their factory Ė Or better still Paul? - But I suppose the cost would be too high Ė Iíll get my spanners.

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  • gwyn_carwardine
    replied
    BioniX Anyone?

    Actually that's better than I expected...

    thanks

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  • Paul Dewhurst
    replied
    BioniX Anyone?

    33K ish inc VAT ex works Aubenas, with 912S, keivprop and analogue instruments.

    Paul

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  • gwyn_carwardine
    replied
    BioniX Anyone?

    Thanks Paul

    I'm presuming that the French have more of an issue with sunshine than we do and therefore have adapted to it possibly better?

    It sounds good - but I'm almost scared to ask the price because of the Euro persisting in its strength... I'm guessing you might have some ballpark idea but I can understand if you haven't worked it out completely yet.

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  • Paul Dewhurst
    replied
    BioniX Anyone?

    Test flying done, noise test to do. Manual written and accepted. So really just need to sort the noise test for completion.

    Sail upper surface is trilam, UVM leading edge cap cap and trailing edge reinforcement.Dacron undersurafce, Kevlar strap from tip to root. Materials well proven for excellent longevity except the Kevlar, which is a first time appearance on air creation wings.It's twice the density of the Stuff on the PAnd M wings, and 50% wider so should have lots redundancy. The trilam is supposed to be a good UV blocker, so the Kevlar should be protected in that position from Uv from above ( unlike the Kevlar on the quiks where the UV seemed to be penetrating through the dacron) but exactly how long it will last is an unknown. air creation pretty relaxed about it though and don't think it will be a problem... If one were paranoid about reflected UV about 75 % or so of the Kevlar is sandwiched between top and bottom surface, or trailing edge UVM, and the remainder could be covered with insignia cloth ( sticky Dacron) or vinyl.

    I have also suggested they try technora instead of the Kevlar, as the UK Market is somewhat sensitive about gold coloured stuff just now!

    Paul

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  • gwyn_carwardine
    replied
    BioniX Anyone?

    Hey Paul, when is the Bionix going to be available, how much and what is the sail material?

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  • Steve Uzochukwu
    replied
    BioniX Anyone?

    [quote=Paul Dewhurst]
    Yes it does work in flight, and is used as a trim control - has a windie handle on the right A frame.

    hanglider VG sytems are not really for speed - rather for increasing glide angle when roll control isnt important (I.e between thermals). they pretty much all do that by lengthening the crossbooms - by pullback or cams, which tensions the wing by reducing sweepback.

    Hi Paul,
    Thanks for clarification. Some of the newer VG system on HGs drop sprog heights, or lengthen luff lines or flatten profiles. One of Trampenau's used to remove the flaps (Sensor 610F). So there are a number of contributions to speed, but majority are, as you say, glide optinmisation.
    The BioniX is a very interesting wing.

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  • Paul Dewhurst
    replied
    BioniX Anyone?

    Yes it does work in flight, and is used as a trim control - has a windie handle on the right A frame.

    hanglider VG sytems are not really for speed - rather for increasing glide angle when roll control isnt important (I.e between thermals). they pretty much all do that by lengthening the crossbooms - by pullback or cams, which tensions the wing by reducing sweepback.

    The Bionix system tensions the trailing edge which increases sweep, reduces reflex, and flattens the tips having a much more direct affect on speed. The system allows a trim range from 50 to 90 ish MPH. It also keeps roll effort resonsably consistent across the speed range too - most flexwings are very heavy at low speed and overly sensitive at high speed.

    The aerofoil profile also changes with camber increasing at low tension. result is that on slow / detensioned setting stall speed remains the same as on the tight / fast setting - whereas normally you would expect lower tension/ increased twist to reduce the overall CL.

    Result is a wing with good speed and trim range and consistent handling, and much improved short landing performance compared to wings with comparable cruise speeds.

    Paul

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