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Jez Billington

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  1. Picking up on this old thread. Does anyone out there have an image for Cambria’s Scimitar slope glider? It would have appeared in their brochure at the time. Thanks in advance
  2. I’ve just had to add over 6oz nose weight to the JP to get it within the range of the new CG estimate. Really don’t know how that happened - I was clearly far too hasty to get it finished. The jig certainly makes things more scientific, but I’m now not fully convinced that even the cradle measuring device is giving a perfect reading. Need to build one of those see-saw devices to convince myself that it works 100% Edited By Jez Billington on 20/07/2020 16:54:17
  3. Andy. I’ve always relied on finger balancIng to determine CG position but after talking to Pete he put me on to the string and plumb bob method that should prove far more accurate. From my side at least, I will only be able to confirm after flight #2 which will be hopefully far less exciting than the first. p.s. not sure what you mean by ‘slight pull towards the canopy’ - I would say a successful CG dive test is one which has a gradual unassisted pull out Edited By Jez Billington on 20/07/2020 12:51:46
  4. It’s true, the model nearly ended up in Davey Jones’ locker, but not giving up when all seemed lost saved it, Hitting good slope lift with an unstable plane does seem to add some pitch stability for some reason. My model is quite a bit heavier than most (around 7lbs) which would not have helped the situation. That’s the result of adding flaps, nav lights and accidentally buying balsa thicker than required with the wing sheeting! I will check the decalage before the next flight and add some more weight to the nose. This will hopefully tame the model. Will try again at the Llyn in August
  5. Thanks Pete. You're right - this forum platform needs pensioning off!
  6. all photos uploaded end up upside down. No matter what i try to fix, they always appear that way. Any ideas?
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