In Cliff's original magazine article he states that the CG should be at 1/3 root chord. That would place it at 96mm from leading edge. On the Sarik and lasercutsailplane plans it is marked at 74mm which is roughly 1/4 chord. I cannot see a CG marked on the photo of the plan in the original article.
Can someone who has built this model tell me which is correct?
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Another Charlesworth K-18 question - CG location
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- Posts: 115
- Joined: 21 Jul 2018, 09:32
- Location: Gloucestershire
Re: Another Charlesworth K-18 question - CG location
Hi Harry, I have just measured it on the plan and the range is 80mm to 94mm but I know I set mine to 25% for the first flights then moved it rearward to suit me, I think it settled on 30%, hope this helps.
Keith
Keith
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- Posts: 115
- Joined: 21 Jul 2018, 09:32
- Location: Gloucestershire
Re: Another Charlesworth K-18 question - CG location
Thanks Keith, that helps a lot. What plan have you got that shows the cg range?
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- Posts: 115
- Joined: 21 Jul 2018, 09:32
- Location: Gloucestershire
Re: Another Charlesworth K-18 question - CG location
Thanks Cliff