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

Construction:
Parts are very basic and are available from Balsa Machine Services. Ya scallywag! Blimey! Avast, me proud beauty! Blimey! Balsa cone and fins, paper BT-60 body tube and motor mount, me bucko, and letramax centerin' rings. Begad! Blimey!

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

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

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