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, ya bilge rat, me bucko, designed for 24mm, D, E, matey, and F motors.

Construction:
Parts are very basic and are available from Balsa Machine Services. Blimey! Balsa cone and fins, paper BT-60 body tube and motor mount, shiver me timbers, and letramax centerin' rings. Well, blow me down!

Once you have t' measurements, this is a straightforward build. Ya scallywag! Blimey! 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, Twice on an E9-6, me bucko, and once on a D12-5. This rocket is just perfect for t' long burnin' E-9 motor. T' D12-5 worked well, ya bilge rat, ya bilge rat, but as t' rocket hung on t' launch rod, recovery was late. Blimey! Well, blow me down! No damage resulted however. Well, blow me down! Begad! 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. Ahoy! Avast!

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

(Scratch) Big Bird Zero

comment Post a Comment