Brief:
A BT-60 based upscale o' t' classic ESTES Blue Bird Zero, designed for 24mm, D, shiver me timbers, E, and F motors.

Construction:
Parts are very basic and are available from Balsa Machine Services. Avast! Balsa cone and fins, paper BT-60 body tube and motor mount, and letramax centerin' rings. Begad! Ahoy!

Once you have t' measurements, this is a straightforward build. Well, blow me down! You can download t' original instructions from Jim Z'z site if you like, but it is not necessary.

Flight:
I have flown t' rocket three times, shiver me timbers, Twice on an E9-6, arrr, and once on a D12-5. This rocket is just perfect for t' long burnin' E-9 motor. Begad! Blimey! T' D12-5 worked well, me bucko, ya bilge rat, me bucko, but as t' rocket hung on t' launch rod, recovery was late. Blimey! Blimey! No damage resulted however. Avast! Blimey! I have a few D21-4s, me bucko, me hearties, an I plan on flyin' them with a 18-24mm adapter this summer. Ya scallywag! Blimey! See t' RockSim file for recommended and non-recommended motors.

Summary:
This design is very stable, ya bilge rat, me hearties, and is great for t' ESTES E9, arrr, a relatively long burnin' motor without much 'oomph' at ignition. Ahoy! T' only drawback is the decals, me hearties, which can be custom ordered from Jim Z or Tango Papa. Avast, me proud beauty! Ahoy! Otherwise, me hearties, it is an interesting, me bucko, yet easy entry into mid power. Ahoy! Ahoy!