Archive of the Yahoo! Groups mailing list for the Bug hand-launch glider 2002-2018

From: "Paul Johnson" <paul@...>
Date: Tuesday, April 1, 2003 7:28 AM
Subject: Re: [BugHLG] Some more help needed
1. --It's my drawing, but his design-- Since Colin B. already published that hand-drawing of the cruciform tail, I hope he won't mind that I'll put a dimensioned drawing of his cruciform tail in my folder in the pictures section later this morning. 2. As you presumed, the vertical stab is glued on one side of the boom. Some believe the side you glue it to matters according to which wingtip you launch it from. Wouldn't you agree that you'd want the forces of the launch to pull on the linkage? If you launch with your right hand, then the forces are trying to pull you left, therefore you may need to add right rudder. So you'd put the vertical stab on the right side. I hope this line of reasoning is correct! 3. I use 4x50mAh nicads. Even with the extra battery I require some weight in the nose. 4. Use 1/32 sheet (crossgrain) as shown on the plans. 5. Copy the ribs. Spray the back of the paper with contact adhesive (3M-77 or photo-mount work fine) and affix to your balsa sheet with the grain direction as shown on the plan. Carefully cut out with an exacto #11 blade. Remember the first rib is on the 1/8" balsa. 6. Your scroll saw will come in handy, perhaps, for the initial shaping of the balsa nose block. Or, you can shape the nose block "on a stick" with a small plane, progressively fine-tuning with increasing grades of sandpaper 'till you get the shape you want. Then use a razor saw or scroll saw to slice it off the stick. -PJ ----- Original Message ----- From: dimple_kwok To: BugHLG@yahoogroups.com Sent: Monday, March 31, 2003 9:31 PM Subject: [BugHLG] Some more help needed Can some one please kindly send me details of the cruciform tail. There is a rough sketch on the gallery with no dimension on it. Also how much rudder / elevator travel would you allow? One more thing, I presume the tail is to be glued to the boom under the stab on one side of the fin, therefore not exactly centred. Does it matter? Do I need to make adjustments for it? What battery do you use? Ahh... the part list on the downloads specify 1/64" balsa sheet - this proves impossible to get in NZ. Looking at the article / plan again I don't see where this is needed. Please explain? I bought myself a small / cheap second hand (like 1/4 of price for new)scroll saw. What blade do you use with it? You can't really cut straight line with scroll saw can you? Thanks Henry Yahoo! Groups Sponsor ADVERTISEMENT To unsubscribe from this group, send an email to: BugHLG-unsubscribe@yahoogroups.com Home Page - http://groups.yahoo.com/group/BugHLG/ Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed]