Scratch Blue Bird Zero (Upscale) Original Design / Scratch Built

Scratch - Blue Bird Zero (Upscale) {Scratch}

Contributed by Fred Talasco

Manufacturer: Scratch
Style: Upscale
(by Fred Talasco)

(Scratch) Big Bird ZeroBrief:
A BT-60 based upscale o' t' classic ESTES Blue Bird Zero, matey, designed for 24mm, D, E, and F motors.

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

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

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

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

(Scratch) Big Bird Zero

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