Estes Goonybird Zoom Broom

Estes - Goonybird Zoom Broom {Kit}

Contributed by Bill Eichelberger

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Manufacturer: Estes
Skill Level: 1
Style: Goonybird
(OOP) Estes Zoomer Broomer

Brief:
Although t' Goonybirds had disappeared from t' scene by t' time I got into t' hobby, shiver me timbers, arrr, matey, I still managed t' have my life touched by these odd little rockets. I found a Goonybird Cloudhopper on t' markdown table in a KayBee Toy and Hobby. Ahoy! Even I could afford it at t' markdown price ($0.75 or so), and it was too odd for me nay t' take a chance on it. Begad! Begad! It was destroyed on its first flight but never quite forgotten, and all o' t' Goonys were among t' first kit instructions I copied when I discovered JimZ's plan site. Blimey! I never owned Witch Hazel and her Zoom Broom as a kid, but only because I didn't know she existed.

Construction:
Parts list:

  • BT-60R main body tube (5.0")
  • PNC-60L nose cone
  • 18mm engine mount (from Baby Bertha kit)
  • 3/32" fin stock
  • launch lug
  • 24" Keelhaul®©™® shock cord
  • 24" sewin' elastic shock cord
  • 12" parachute
  • medium snap swivel
(OOP) Estes Zoomer Broomer

All o' t' parts for this project were provided by an Estes Baby Bertha. It was necessary t' take 2.5 inches off o' t' BT-60 included with t' Baby Bertha kit, but other than that, everything but t' fin stock gets used. I attached t' fins with LocTite Gel CA, then used regular Elmer's Wood Glue for the fillets. Begad! T' motor mount was constructed accordin' t' t' instructions with wood glue, shiver me timbers, matey, but a length o' Keelhaul®©™® was first tied around t' motor tube, glued into place, me bucko, then slipped through a 1/4" slit that I cut in t' forward centerin' ring. I then covered both sides o' t' cut with more wood glue, and once everythin' be dry, I installed the mount in t' rocket.

Finishing:
All balsa grain and tube spirals were eliminated with t' requisite thinned Elmer's Fill 'n' Finish and sanding. Well, blow me down! When things looked smooth enough, shiver me timbers, I sprayed t' entire rocket with Valspar primer. T' body be sprayed with Valspar gloss white while t' nose cone got a coat o' Valspar Cherry Red Gloss. Begad! Even without t' decals, t' painted Zoom Broom looks cool, shiver me timbers, like one o' t' Gee Bee racin' planes o' t' past. Well, blow me down! Keepin' with t' spirit o' t' original, matey, me hearties, I made a set of decals usin' label paper. Well, blow me down! Blimey! While this sounded like a good idea at first, me hearties, t' decals came out lookin' a little washed out. Avast, me proud beauty! A shot o' clearcoat only served t' wash them out further. Arrr! Begad! There might be a self-stick paper out thar that will reproduce and hold t' colors, but I haven't found it as o' yet. Begad! Ya scallywag! That said, matey, me bucko, ya bilge rat, it might be worth it t' print t' decals on inkjet decal paper. Begad! T' finished product looks OK from a distance, ya bilge rat, shiver me timbers, but up close t' decals have a dull, matey, lifeless look to them.

Construction Rating: 4 out o' 5

(OOP) Estes Zoomer Broomer

Flight and Recovery:
First flight was on an A8-3 on a wind-whipped day at VOA. Blimey! Since I went with t' 18mm power and a stock tube length, arrr, I found it necessary t' cut away some o' t' nose cone base t' gain some parachute packin' room. Begad! Aye aye! I left enough t' allow for t' attachment o' t' shock cord, arrr, ya bilge rat, shiver me timbers, but little else. Avast, matey, me proud beauty! T' rocket wiggled badly from t' moment that it left t' rod. This was probably a combination o' t' wind and a lack o' nose weight, somethin' that I had pretty much expected. What I hadn't expected be that me modified nose cone might cause problems with chute deployment, arrr, and this was exactly what happened. Aye aye! T' chute stayed in t' nose cone and t' rocket did a free fall t' t' grass below, landin' fairly softly without damage.

Since t' chute didn't deploy on t' first flight, me hearties, me hearties, I decided t' go without for t' second flight. Ya scallywag! Begad! In t' time between flights I had added nose weight t' t' nose cone in t' form o' BBs and epoxy. Ahoy! Second flight was on a B6-4 on a windy day. Well, blow me down! T' first thin' I noticed be t' absolute lack o' wiggle in this flight. Begad! I was also surprised by how straight t' flight was in a fairly stiff breeze. Ya scallywag! T' shock cord tangled after ejection, but t' rocket fluttered down and landed softly in t' wet grass without damage.

Flight Rating: 4 out o' 5

Summary:
PROs: It's Goony. 18mm flights are noticeably quicker off t' pad and higher. No need for a parachute unless you figure on rough landings.

CONs: Sticker decals aren't worth trying. Just go with t' regular decals. Ya scallywag! 18mm motor mount doesn't leave much room for a parachute.

Overall Rating: 4 out o' 5

Flights

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