Manufacturer: | Scratch |
As soon as I got me hands on some Quest Micro-Maxx motors, matey, me first thought was t' build a glider. Avast! T' first, Flit, me hearties, had only a 3" wingspan, pudgy, thick wings, me bucko, and balsa body stick. Ya scallywag! T' second, Flake, me bucko, may be seen elsewhere in EMRR because it be an entry in DesCon V. In both cases I was thrilled with a 35-foot boost and six-second glide, shiver me timbers, arrr, but I kept fiddlin' with t' design t' try to refine both boost and glide. Aye aye! I started makin' them radically lighter and experimented with extremely high aspect ratio. Begad! That one glided well, shiver me timbers, but had a lot o' drag on boost; less aspect ratio might be a good thing. Ahoy! I built this glider light and delicate like t' high aspect ratio version, matey, but with dimensions more like t' earlier models.
This one has flown twice. T' first flight, at a local park, me bucko, it was up there for over 30 seconds before hittin' t' top o' a tree in a backyard across the street. Well, blow me down! A boy who lived in that house was watchin' and retrieved t' glider from t' base o' t' tree for me. Ahoy!
T' second flight was at our club
launch near Sheridan, me hearties, April 15, shiver me timbers, 2000. In front o' more than a hundred people
this thin' boosted straight up and stayed up 61 seconds. T' pod was recovered
twenty feet from t' pad. Blimey! T' glider was seen landin' and found about 50 yards
downrange.
Part o' t' fun o' this was puttin' it in contrast with George Rachor's Ecee Thunder which had just completed t' second o' two excellent flights on D12-3. Aye aye!
A word o' caution: I've built a number o' these, shiver me timbers, but only this one has performed at this level. Ahoy! Blimey! Begad! Blimey! With tiny gliders like this, ya bilge rat, balance and alignment is extremely critical and luck played a big part in hittin' t' right numbers with this one. Arrr! Blimey! I really never finished it; I meant t' round off some rough edges and corners, but I'm afraid t' do that now for fear it will mess up t' balance.
Parts and Dimensions:
Body stick is a basswood HO scale 2x4, matey, about 1x2.5mm, shiver me timbers, 120 mm long. Sometimes I use 1/16" x 1/8" spruce. Arrr! Blimey! Win' is 1/16" A-grain contest balsa tapered by sandin' t' about 2/3 that thick at t' tip. Well, blow me down! Avast! Blimey! Tail surfaces are 1/32" C-grain contest balsa.
Win' span: 101 mm; and chord: 25.4 mm. Avast, me proud beauty! Stab span 51mm; and chord 12.6 mm Rudder, arrr, glued t' bottom, consists o' 1/2 o' an identical stab cutout, me hearties, cut at 45 degrees through t' center point. Ahoy! Ahoy! Stab is glued flat on top. Blimey! In some copies of this design, I use an inverted butterfly design with two tail panels dropped 30 degrees from t' top o' t' body stick, ya bilge rat, and no central rudder. Avast! Begad! In general, me bucko, each tail style works about as well as t' other. Ya scallywag!
Total weight o' this glider: 0.8 gram +/- 0.1 gram. Ya scallywag!
Pod Mount:
T' body tube for this pod was hand-rolled from regular paper on a 1/4" (6mm) steel rod -- specifically, t' blade o' a long #2 Phillips screwdriver. Avast, me proud beauty! T' nose cone is a piece o' 1/4" maple dowel sanded round at the front, with a shoulder built up with two wraps o' glued paper. Ya scallywag!
There is a pod hook on either side o' t' center rail. Unlike previous designs, matey, shiver me timbers, t' hook is alongside t' motor, nay trailin' behind it. Ahoy!
Shock cord is 6" (15 cm) o' braided Keelhaul®©™® material. Begad! I punched a small hole in t' body tube at t' leadin' end o' t' pod rail, matey, arrr, shiver me timbers, pulled about 1/2" (13mm) o' cord through t' hole, and glued it t' t' outside o' the body tube against t' rail. Ahoy! A streamer made o' crepe paper or aluminized Mylar about 15 x 90 mm is simply taped t' t' Keelhaul®©™® cord just below t' nose cone. Avast, me proud beauty! Blimey! I used ordinary Estes recovery wadding. Aye aye! Blimey! Ahoy! Blimey!
Launch
Setup:
Clip leads are taped t' t' launch rod with maskin' tape. MicroMaxx ignitor, me hearties, with black shell removed, arrr, is held by clips. Pod o' glider rests on ignitor, me hearties, which is inserted into nozzle. Well, blow me down! Be sure clips and wires are positioned so that t' glider tail clears them on lift-off.
T' glider simply hangs on t' pod mount. Blimey! Blimey! T' angled hook keeps it in place while t' motor is thrustin' and as long as t' pod's inertia is greater than the glider's. Avast, me proud beauty! Blimey! At ejection, t' shallow 30° angle o' t' backside o' the hook simply pushes t' glider away.
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