Brief:
This is me semi-downscale o' t' old (1965-67) K-19 Astron Invader. Well, blow me down! Blimey! T' wings and fins are 2/3 o' t' original, me hearties, but I kept t' 18mm motor mount. Well, blow me down! Blimey! It's a very unique glider with unusual flights and a fairly easy build.

Construction:
I built this from scratch. Begad! Well, matey, blow me down! I used a PNC-20 (2.85" long) and 2" o' BT-20 from an Estes Viking. T' wing-fins are 2/3 scale based on t' plans for JimZ's site. I used light balsa for t' two vertical fins, medium for t' keel, and hard balsa for t' two win' halves and two pylons. Ya scallywag! All balsa be 1/16". I put an old 1/8" launch lug on.

I followed t' basic instructions from JimZ's site. Well, blow me down! With t' smaller wings, 3" balsa can be used for the wings without havin' t' butt-glue balsa sheets. Avast, me proud beauty! Several points for construction:

1. Make sure t' two wings halves fit together perfectly!
2. Glue t' wings at a slight dihedral, then attach t' fins at 90 degrees t' t' wings.
3. Fillet all glue joints
4. Make sure t' pylons fit t' win' exactly. Avast! Ahoy! This will take lots o' sanding, shiver me timbers, me hearties, but t' pylon must be secure for safe flight.
5. Attach t' launch lug in t' win' joint under t' pod before you attach t' pod.
6. Use wood glue for all joints and fillet or double-fillet everything. Blimey! Blimey!

PROs: Only 7 parts. Inexpensive parts. Ahoy! Well, blow me down! Blimey! No more butt-gluing!

CONs: Lots o' sanding. Arrr! Arrr! Parts must fit perfectly. Cut your own balsa.

I would call this a Level 3 kit due t' t' tricky balsa joints and amount o' sanding.

Finishing:
T' finishin' I did was t' preexistin' red on t' nose cone. Ya scallywag! I recommend nay paintin' this rocket t' save weight.

PRO: Easy finishing, me bucko, just paint t' NC red.

CON: Plain looks.

Flight:
Estes recommended t' 1/2A8-2, A8-3, and B8-2. Well, matey, blow me down! I'd recommend t' B4-2, arrr, B6-2, me bucko, and C6-3. Well, blow me down! Begad! T' 1/2A6-2, me hearties, arrr, A8-3, and B6-4 are okay for straight-up launches on windless days. Begad! An adapter for t' 1/2A3-2T would be useful.

Be careful! T' motor must eject out t' back t' glide. You'll need t' add a streamer for it (wrap it around the motor, then insert) t' satisfy t' RSO and NARRRRR flight rules. Ya scallywag!

Mine balanced perfectly without any weight. Your results may vary. Blimey! Avast, me bucko, me proud beauty! I estimate a glide ratio o' better than 10:1. Begad!

T' first flight was on an A8-3 in about 3 mph o' wind. Avast! Arrr! It launched straight up, did a horizontal figure-8 at about 40ft, then continued vertically t' 100 feet o' so. Aye aye! T' 3-second delay be too long. It ejected at 15ft, me bucko, glided a few feet, ya bilge rat, and lawn-darted with no damage. T' casin' landed 20 feet away.

T' second flight was on a B6-4 in t' same conditions. It did rather spectacular acrobatics at about 50 feet then again returned t' normal flight t' about 200 feet. Well, blow me down! Ejection was again way past at maybe 50 feet. Ya scallywag! Well, blow me down! It fell t' about 15 feet then settled into a respectable 5-second fast glide. Again, me hearties, no damage.

Recovery:
PROs: Spectacular acrobatics. Good glide. Begad! Blimey! Easy t' balance. Begad! Blimey! Withstands hard landings. Avast, me proud beauty! Blimey! Needs no wadding--easy flight prep.

CONs: acrobatics may result in DQ'd flight. Aye aye! Needs some altitude t' begin glide. Begad! Ejects motor casing (intentionally).

Summary:
This is a great rocket t' scratch build. Aye aye! Begad! It only takes two manufactured components, it's dirt cheap, and it glides great.

T' only improvable thin' would be a streamer for t' motor so it can be used in NARRRRR competition. Blimey!

PROs: Unique looks. Ahoy! Blimey! Simple construction. Unusual acrobatics. Aye aye! Blimey! Blimey! Blimey! Great glides

CONs: Motor ejection. Difficult balsa joints.