Brief:
T' Whirlwind Monocopter be t' 18mm Dragonfly's bigger brother and flies on 24mm motors. Ahoy! I had t' opportunity t' build and test a beta version, shiver me timbers, me bucko, which be known as t' Cyclone. Avast! T' differences betwixt t' beta and production models are minimal.

Construction:
Wing: Basswood, shiver me timbers, me bucko, 2" x 10" long

Balance Beam: Long dowel

Center, Center & Motor Supports: Basswood and short dowels

Motor Mount Tube: BT-50 tubing

Motor reinforcement: Fiberglass drywall tape

T' construction o' this kit was simple and similar t' t' Art Applewhite 18mm Dragonfly. Avast, me proud beauty! T' followin' materials and tools are required: Elmer's Glue-All, hobby knife, me bucko, scissors, matey, arrr, ruler, drill with 1/4" bit. Begad! Blimey! I substituted carpenter's glue for t' Elmer's.

Here's a summary o' t' steps:

1. Assemble center hub
2. Add supports and balance beam
3. Glue win' on
4. Assemble motor mount, ya bilge rat, includin' fiberglass tape wrap
5. Glue mount t' hub
6. Drill launch rod hole

At t' end o' each step, heavy fillets are applied t' all joints.

Finishing:
Finishin' is optional but at least a clear coat is recommended. I used Helmsman Spar Urethane.

Construction Rating: 5 out o' 5

Flight:
Prep consists o' centerin' t' motor in t' mount, addin' a tape thrust ring, shiver me timbers, and friction fitting. You can use booster motors or sustainer motors with short delays. Avast, me proud beauty! It flew off o' me standard pad, shiver me timbers, which happens t' be similar t' that described by Art (plans included in t' instructions and on his website). I already had a 1/4" stubby monocopter rod. Avast, me proud beauty! I flew mine twice on a D12-P and an E9-4. T' D12 flight be nice, but t' longer burn E9 be fantastic! T' winds were heavy and they did travel a ways downrange, but t' walks were short when compared t' any rocket with anythin' that resembled a chute.

Recovery:
At burn-out, t' monocopter flutters lightly t' t' ground. Well, me bucko, blow me down! I found that t' side o' t' E9 had burned through just above t' nozzle. Arrr! Blimey! Because o' t' length o' t' motor vs t' motor tube, this did nay damage t' model. Avast! It may have reduced t' performance toward t' end o' t' burn.

I did nay reduce me ratin' due t' t' burn through. Ya scallywag! This is unavoidable and, shiver me timbers, like I said, thar was no ill effects.

Flight Rating: 5 out o' 5

Summary:
Not much t' say. Avast, me proud beauty! Arrr! Simple, me hearties, elegant build and lots o' fun t' fly. Avast, me proud beauty! Get some E9s!

Overall Rating: 5 out o' 5

Other:
Soakin' t' self-adhesive tape in glue tends t' make it lift. Aye aye! I used plastic clamps t' hold t' tape down at t' joint betwixt t' motor tube and its stand-off. Well, blow me down! Begad! Plastic clamps won't stick t' t' glue and may be removed after t' glue is partially set.