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

From: plachance@...
Date: Wednesday, March 9, 2011 10:11 PM
Subject: Re: [BugHLG] Weak points
I would love to see pics or videos of your rocket launched Bug. Thanks for the heads up on the weaknesses of the Bug. Paul Sent from my Verizon Wireless BlackBerry -----Original Message----- From: Lee Teicheira <leet1@...> Sender: BugHLG@yahoogroups.com Date: Tue, 8 Mar 2011 13:22:58 To: <BugHLG@yahoogroups.com> Reply-To: BugHLG@yahoogroups.com Subject: Re: [BugHLG] Weak points Hi Paul Two areas to consider, both having to do with when the plane was designed, and subsequent advances in launching technique and radio gear. As mentioned earlier, extend the wing spar into the tip. The tip will not stand up to any kind of SAL launching, which will give you much greater hight than a javelin toss, and is much easier on the arm. Maybe include a pin or blade next to the last rib for launching. The fuse is very fragile. Either use 3/32" wood, or light glass (3/4 oz) or both. The bug was designed around the Hitec HS-50 servos, 555 receiver and a 3x50ma nicad battery. That is (was) about 48g (1.7oz) in radio gear. Therefore, the fuse had to be built short, and as light as possible to properly balance the plane without adding tail weight... You do build your tail feathers as light as possible, right? My current micro system of choice is a Castle Creations Berg 4L receiver, Dymond D47 servos and a 2x120 mah LiPo battery. This gives an all up weight of 13.4g (0.5oz). (Blade mCX Heli batteries are cheap and easy to get) This is the only (good) combination that I know of that will run on 2 LiPos without a regulator. This also allows for a stouter fuse. Better added strength in the nose, than added lead to balance. You also might (should) lengthen the nose a bit to help with the balance with this light of a radio. Maybe as much as an inch (or more) if you keep you tail light. With this radio, a 3oz Bug is easily obtainable. Just keep your tail light, and don't waist all the weight savings with lead. My current Bug is rocket launched and weighs ~90g with a spent rocket motor casing on board.... HTH Lee *Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us.* -*Bill Watterson* On Tue, Mar 8, 2011 at 11:40 AM, Paul LaChance <plachance@...> wrote: > Hi all, > > I am about to cut out the parts to make up 4 Bugs. Before I start, what > are the weak points that need improvement or places that need to be > strengthened? It is easy to tweak it now before I start building than > after. > > Thanks in advance. > > Paul > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > Home Page - http://groups.yahoo.com/group/BugHLG/ > > Yahoo! Groups Links > > > > [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]