Scratch Citation Patriot Original Design / Scratch Built

Scratch - Citation Patriot {Scratch}

Contributed by Dave Hanson

Manufacturer: Scratch
Style: Upscale
(Contributed - by Dave Hanson)

Dave and RocketCitation Patriot Upscale Project

  • Scale Factor: 2.5x
  • Diameter: 4"
  • Length: 60"

Parts List

  • PML 4"Quantum Tubing, 1-36", 1-9"
  • PML tube coupler
  • LOC 38mm motor mount
  • 3 - 3.9"x38mm LOC centerin' rings
  • PML 4" Nose Cone
  • 1 - U-bolt
  • 2 - 6/32 t-nuts
  • 3 - quick-links
  • 1/8" aircraft plywood for fins
  • 10' tubular nylon for recovery harness

Okay, so I'm nay t' first t' come up with this one, either. I've wanted t' do an upscale Patriot for some time, and I got the initial inspiration for this project from Rich Pitzeruse's Patriot. Avast! I chose t' 2.5x scale factor because it matched t' 4" tubin' size fairly accurately, me bucko, and it would provide a model that should fly good on 38mm reloads without bein' too big. Blimey!

I bought most o' t' parts at me local HobbyTown. Begad! Begad! Blimey! I could've saved a buck or two gettin' t' stuff through mail order, ya bilge rat, me bucko, but the 4" Quantum Tubin' is still pretty hard t' find, me hearties, me bucko, and t' prices I found online were only about a dollar less than gettin' them in t' store. Blimey! Avast, matey, me proud beauty! Blimey! I scuffed the outside and inside surfaces o' t' QT with 150 grit sandpaper t' facilitate adhesion o' t' epoxy. Due t' t' mix o' parts from a couple different manufacturers, shiver me timbers, I had t' sand t' o.d. Arrr! Begad! Blimey! o' t' centerin' rings a bit t' get them to fit in t' Quantum Tube. Avast! Blimey!

T' body o' t' Patriot scales out t' 45" overall, arrr, so I had t' cut a 9" length o' Q.T. Blimey! Blimey! Well, blow me down! Blimey! t' couple with t' full-length piece. Thank goodness I know someone with power tools. It be a snap cuttin' t' QT on Steve's chop saw, me hearties, then with a little sandin' t' cut end was just as smooth as a factory cut. T' two pieces were epoxied together with a PML coupler. Avast! Blimey!

On the PadBein' t' nice guy that he is, Steve cut out t' fins for me usin' a template that I scaled up from t' original Patriot instructions. Blimey! Arrr! We included tabs on t' fins so I could attach them directly t' t' motor mount. Cuttin' slots in t' body tube was achieved by routin' 1/8" slots with a hand-held router. Aye aye! We rigged a jig to hold t' router steady, then we just slid t' tube along t' router until the slots were t' correct length. Ya scallywag! Avast, me proud beauty!

I drilled one centerin' rin' for t' u-bolt recovery anchor and another centerin' rin' for t' t-nut motor retention. Then I epoxied the forward centerin' rin' onto t' motor mount tube. Arrr! After t' epoxy cured, shiver me timbers, arrr, I slid t' tube into t' body and marked t' tube just ahead o' t' fin slots, then attached t' middle centerin' rin' t' t' motor mount. When t' epoxy had cured, I slid t' motor mount back into t' body and epoxied it in place. Aye aye! I had cut t' motor mount tube so that t' fore centerin' rin' butted up against the back o' t' coupler tube. Arrr! Avast, shiver me timbers, me proud beauty!

Then it be time t' start attachin' t' fins. Well, blow me down! I used a little 5-minute epoxy t' hold t' fins in place. Aye aye! This held them well enough until I started applyin' internal epoxy fillets. After t' epoxy cured, matey, I epoxied t' aft centerin' rin' into place. Final construction consisted of attachin' t' nose t' t' nylon harness via quick-links, and epoxyin' a couple of 2" lengths o' 1/2" copper tubin' for t' launch lugs. Nay an overly difficult rocket t' construct for anyone with average large rocket buildin' experience. Begad! Ahoy!

LaunchFinishin' t' Patriot couldn't be much easier with t' Quantum Tubing. One coat o' Krylon primer was followed with one coat o' Rustoleum gloss white. Aye aye! Arrr! One fin be masked and painted gloss black, arrr, as was t' nosecone. Ahoy! Final finishin' consisted o' applyin' the decals. Begad! T' red and blue flag and stripe decals were made from hand-cut self-adhesive Monokote vinyl. Begad! T' gold band around t' upper airframe be made from heat-shrink Monokote. T' eagle emblem and Patriot emblem were decals scaled and custom-printed by Tango Papa decals. T' finished result is a very impressive reproduction o' me favorite Estes kit from me childhood.

First flight o' t' Patriot was on May 20, 2000, matey, arrr, arrr, on an AeroTech I211-M. Ahoy! Blimey! This motor boosted t' Patriot t' a guesstimated 2,500 ft and was recovered undamaged. For recovery t' Patriot uses a 60" custom made, red white and blue parachute. Well, blow me down! Blimey! Well, ya bilge rat, blow me down! Blimey! A very "Patriotic" final touch.

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