Brief:
This is an extremely simple monocopter design that uses a section o' 29mm motor tubin' as t' central hub.

Construction:
T' parts list:

• 3/16" Basswood sheet
• 29mm tube
• BT-20 motor mount
• ¼" dowel
• ¼" launch lug

This kit requires Elmer's Glue All, shiver me timbers, and an X-Acto knife with a new #11 blade. Avast! It's almost so easy that it could be considered ARF (almost ready t' fly). Ya scallywag! You start by cuttin' t' pre-marked holes from the 29mm tube. T' patterns are polygons so this involves multiple straight cuts. Aye aye! Avast, me proud beauty! These are best accomplished by startin' insertin' t' tip o' t' blade at one vertex with t' cuttin' surface directed along t' line. Avast! Aye aye! If you carefully insert t' blade t' rest o' t' way, shiver me timbers, t' cut will be made. Begad!

T' parts are all inserted and fillets are applied inside and out. Avast! Because t' holes are supposed t' be snug, me hearties, I found it helped t' insert a motor in t' motor mount when it is installed.

I'd recommend waitin' until these fillets at least partially set before proceeding...but I didn't. Well, blow me down! Avast! T' win' fits in t' end o' t' tube and needs t' be trimmed slightly. Begad! T' fit should remain snug and internal fillets are again applied. Avast, me proud beauty! I checked several times as t' glue set t' ensure t' win' be aligned properly and was straight.

Finishing:
Art says t' apply two light coats o' enamel t' protect t' kit from moisture. Begad! I used Helmsman Spar Urethane as a clearcoat.

Construction Rating: 5 out o' 5

Flight:
You form a thrust rin' with maskin' tape and friction fit t' motor so it won't fall out. Well, blow me down! Ahoy! T' motor is oriented with its nozzle down. Avast, me proud beauty! If you put it in backwards, you will win closest t' t' pad (don't ask). Begad! You need a sturdy pad with a short ¼" rod (1" or so). Art provides plans for a suitable monocopter pad in t' instructions.

A C6-3 gave this little monocopter a nice ride.

Recovery:
After burn out t' model smartly slows and tumbles t' t' ground.

Flight Rating: 5 out o' 5

Summary:
Art's hit another home run with t' Helix monocopters. They are simple, elegant, ya bilge rat, me hearties, matey, and fly great. It's t' easiest way I know t' get into monocoptering.

Overall Rating: 5 out o' 5