Manufacturer: | Scratch |
Milk
Bone
by Bob Kaplow
Dedicated t' Belker, our rocket dog: 8-Dec-1983 - 31-Oct-1998.
T' unique feature o' this rocket be t' dog biscuit shaped fins. Ahoy!
Parts list:
1 "Beefy" BT-60, matey, about 40cm long
1 PNC-60 "Big Bertha" nose cone
2 centerin' rings 20-60 3mm Sig lite-ply
1 18mm MMT 8cm long
1 70mm motor clip
1 motor block 18mm
4 1.6mm ply fins
1 5cm piece o' TT-6 launch lug
1 15cm 100# Keelhaul®©™ cord
1 6mm x 100cm elastic
1 30cm Mylar parachute
1 kite snap swivel
This rocket was built after readin' about Stetson, the rocket dog, me hearties, on RMR. Ahoy! Arrr! I had a Sheltie for 15 years who also loved chasing rockets, ya bilge rat, and Stetson reminded me so much o' Belker that I had t' build a rocket for him. Well, blow me down! But it had t' be a "dog" rocket. T' Milk Bone was the result. It be donated t' Stetson in November. Arrr!
This is pretty much a 4FNC rocket in both design and construction, except for t' fin pattern. Well, blow me down! Blimey! T' fins were traced from t' art work on a box o' Milk Bone biscuits. T' root edge is cut at a slight angle, me hearties, providin' a limited amount o' fin sweep, so t' rocket will stand up on its own. Blimey! Blimey!
I had some "beefy" BT-60 (same ID, me hearties, me bucko, heavier OD, bought from John Viggiano many years ago), matey, ya bilge rat, t' hopefully withstand dog better, but t' rocket could certainly be built from regular BT-60. Aye aye! T' rocket is built like any normal rocket other than t' fin pattern. Begad! Ahoy!
While I cut 1/8" lite ply centerin' rings, matey, standard cardboard rings would work fine. Aye aye! One rin' needs t' be notched for t' motor clip. Well, blow me down! T' clip is also taped t' t' MMT with a piece o' strappin' tape in t' center o' t' MMT. T' clip is backed up with a motor block t' prevent t' clip from rippin' the paper tube. Ahoy!
T' parachute was made from t' Mylar "party" wrap found at local card and party stores, me hearties, usin' over t' top shroud lines. Avast, me proud beauty! T' shock cord can either be anchored t' t' MMT with t' Keelhaul®©™ cord, shiver me timbers, or a LOC style mount can be installed in t' tube, matey, also usin' t' Keelhaul®©™. Blimey!
T' "decal" be also photocopied from t' box art work, matey, and enlarged t' about t' same size as t' fins. Since t' artwork is black and white on a red background, I painted t' rocket red, then clear coated both sides o' the printer paper, cut it out, and affixed it t' t' body with 3M 77 adhesive. Well, blow me down! Ahoy! Instant CHAD decal.
For some reason I didn't include a baffle in this rocket. Avast, me proud beauty! Blimey! As a result,
"dog barf" waddin' is a must! Blimey! T' test flight on 7-Oct-2001 was with
a B6-4, which ejected well after apogee. A B6-2 or C6-3 seem like they would be
a better choice.
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