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