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At 09:22 12 June 2009, Bruce wrote:
Sounds perfectly reasonable to me. Winglets, disk brake and a single pece cockpit - a little wing profiling and you have a very nice sailplane for a fraction of the cost of one (15m) with maybe 3% better performance... A new 18m ship would cost me five times the investment for maybe 10% more L/D. If you just want to have fun then it is a poor investment. The locally developed modification with polyhedral wingtips and winglets seems to narrow that performance gap even further. So that is a probable change when time and money allow. Mine has already had a complete cosmetic going over and wing profile - needs some work to pretty the cockpit up and then she is as good as new. Lovely glider as she is - But that canopy has to go. Jonathon May wrote: In England Don Austin has put a one-piece canopy on a kestrel,it looks like a next generation ship,he dosen't know when to stop though, he also put suspension,a disc brake and wing tips. At 18:46 11 June 2009, Bruce wrote: JS wrote: Whilst you're waiting for the fix from Streifeneder, try different flap settings on tow. Jim Now there's a lateral suggestion. I shall take your suggestion and try it - but I still want the new canopy. Bruce As to the mods done on my Kestrel 19 I have fitted a Vega Canopy to it as I watched the Vega Mould being made and they used an uncut Kestrel Canopy for the front of the Vega. I liked the simple hinging arrangement used by DG so I used this method. The winglets I fitted were on the style of Shemp Hirth and measurably improve the roll rate and I believe improves the best glide angle. The BGA permitted the fitting ofwnglets to any gider that can have its wings extended. ie 20 Meter Kestrel.I have also fitted two ASW 20's with winglets.The easy way to do this is to modify the stub tips. Kestrels are too heavy for a drum brake but a M/Cycle front disk brake can be obtained complete with Brake Lever pipe and reservoir quite easilly.The standard Glider wheel with disk is the one I used. It seemed a shame not to fit Rubber springs to the U/C when it was reassembled so I did. Anyone who would like a picture is welcome. Don Austin |
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