Brief:
D-powered rocket glider

Construction:
T' parts list:

• 1 nose cone, BT-55, tangent ogive, ya bilge rat, 3.125" length, 3/8" tenon (BNC55AA-ish)
• 1 nose cone, BT-50, shiver me timbers, tangent ogive, 3" length, 3/8" tenon (BNC50K-ish)
• 1 body tube, arrr, BT-55, ya bilge rat, 14" length
• 1 body tube, BT-55, 11" length
• 1 body tube, shiver me timbers, BT-50, 14" length
• 2 launch lugs, ya bilge rat, 1/8" diameter
• 1 motor block for 24 mm motor
• 1 retainer ring, arrr, arrr, 1/8" slice o' TC-55 tube coupler
• 1 elastic or rubber band, me bucko, me bucko, about 1.2 mm wide, ya bilge rat, 6" length
• 2 spruce pieces, 1/8" x 1/2" x 1-1/16"
• 2 spruce pieces, me hearties, shiver me timbers, 1/8" x 1/2" x 2-1/16"
• 2 balsa sheets, 1/8" x 4" x 36"
• 1 "baffle plug" - 2" length o' solid balsa cylinder t' fit inside BT-55
• 1 "blow out plug" - Made from 2.5" length o' solid balsa cylinder t' fit inside BT-55. Well, blow me down! Rear 3/4" fits BT-55. Avast, me proud beauty! Middle 1.25" fits into TC-55 coupler. Aye aye! Begad! Forward 1/2" tapers t' 1" diameter.
• 2 elevon hinges, ya bilge rat, 4-1/2" x 1", me hearties, cut from a Tyvek envelope

T' downloaded plan set includes images o' t' printed material from t' original kit, It includes additional photos o' t' collection o' kit parts, t' round balsa parts, t' flat balsa parts, ya bilge rat, and an aftermarket part sheet that describes part details and dimensions for a win' segment. Well, blow me down! T' photographs give a good idea what each part should look like. Ahoy! Begad! This is quite important for t' round parts because none o' these parts are off-the-shelf items. Aye aye! T' original kit printed instructions include an exploded drawin' o' t' entire model, me hearties, a set o' assembly drawings, shiver me timbers, me hearties, and step-by-step instructions for each assembly drawing. Avast! Aye aye! T' instructions are quite clear, shiver me timbers, and t' assembly drawings illustrate what needs t' be done in each step fairly clearly, however, arrr, matey, t' assembly drawings are generally nay drawn t' scale.

There are some serious "gotcha's" with t' downloaded plans that must be taken care o' durin' initial parts fabrication. First, me bucko, matey, matey, t' descriptions o' t' "blow-out plug" in t' round-part photo and in t' aftermarket parts list specify a taper that cannot work. Begad! Avast! T' forward end o' t' plug must taper t' 1", NOT 0.75"! This is because t' elevon hold-downs mounted on t' plug must straddle a BT-50 tube, NOT a BT-20 tube. Avast, me proud beauty! Second, arrr, shiver me timbers, t' lengths o' t' BT-50 and BT-55 body tubes are possible, but they can't yield t' model shown by t' original kit insert or in t' Kopter catalog (found at Sven Knudson's Ninfinger website). From assembly figures 5 and 14, t' correct BT-50 and aft BT-55 tubes can be deduced t' be 14" long, matey, me hearties, NOT 18". Aye aye! From t' model specs and figure 5, matey, t' forward BT-55 tube must be 11" long, NOT 8". Ya scallywag! Arrr! Third, shiver me timbers, t' dimensions for Win' Part A on t' aftermarket parts list are nay consistent. Aye aye! Avast! That is, matey, thar are too many dimensions and they don't add up. Blimey! I recommend disregardin' t' 10-5/16" dimension while keepin' t' others.

I used a plastic "toy lathe" t' turn t' balsa nose cones, baffle plug, shiver me timbers, and blow-out plug. Avast! T' lathe is a Toymax Toolmaster Workshop that, unfortunately, arrr, shiver me timbers, has been OOP since around 1997. Begad! Begad! Without a lathe, me bucko, ya bilge rat, you should be able t' order t' nose cones and baffle plug from Balsa Machinin' Services. Ahoy! Well, blow me down! T' blow-out plug should be doable too, if you figure out t' dimensions t' specify.

Instead o' usin' 3" wide flats, matey, matey, I used 4" wide balsa flats for t' wings and rudder. Avast, me proud beauty! T' do this, arrr, I drew t' full-scale outlines o' t' completed win' and rudder, me hearties, me bucko, me hearties, based on given patterns, then divided them up into 4" strips. Aye aye! Avast! I feel that this lead t' simplified assembly by reducin' t' number o' joints that needed fittin' together.

Once all o' t' parts had been fabricated, followin' t' assembly instructions was straightforward but still posin' some interestin' challenges. Matchin' duct slots had t' be cut into different caliber 14" tubes, matey, then had t' be carefully sealed together with glue joints and fillets. Avast, me hearties, me proud beauty! T' win' and rudder parts needed careful trimmin' for precise fit.