Scratch Satellite Interceptor 1.36X Upscale

Scratch - Satellite Interceptor 1.36X {Scratch}

Contributed by Bill Eichelberger

Manufacturer: Scratch
Style: Upscale

1.8X Upscale Satellite InterceptorBrief:
When I discovered JimZ's plan page in early 2001, shiver me timbers, one o' t' first old rockets that I looked for with hopes o' somehow recreatin' it be t' Estes Satellite Interceptor. Blimey! An original S.I. Avast! had been one o' me favorites from me early fleet but had been one o' t' rockets that I never managed t' fly due t' lack o' a flyin' partner. Avast, me proud beauty! Arrr! Unfortunately a 2001 sweep o' t' local toy and hobby shops made me realize that many, me bucko, if nay all, me hearties, o' t' late 70's era kits I be interested in buildin' were no longer available except with a second mortgage. Avast, ya bilge rat, me proud beauty! As I delved deeper into t' online arm o' t' hobby and discovered David O'Nan's S.I. Arrr! review on EMRR, I began t' get a clearer picture o' how some kits could be donors for t' parts needed t' clone a completely different bird, and shifted me attention t' eBay with hopes o' landin' an Estes Wildfire as a parts vehicle. Begad! Avast! I eventually won a Wildfire but nay before purchasin' an assortment o' body tubes and nose cones from Hobbylinc, a stash that included t' BT-55BB nose cone used in t' Black Brant. Ya scallywag! T' Black Brant cone wasn't a perfect match, matey, ya bilge rat, but it was close enough for me tastes and with it in hand I jumped blindly into me first upscale project. Ya scallywag! I had several impressive flights with t' D-powered S.I. Well, me bucko, blow me down! over t' next few years, but it was mortally injured in a tragic garage accident, arrr, arrr, which led me t' t' current E-powered version.

Construction:
T' parts list:

  • BT-55 main body tube 18" length
  • BT-55 main body tube 4" length
  • BT-20 ram tube
  • BT-55 tube coupler
  • PNC-55BB
  • 1/8" balsa fin stock
  • 24mm engine mount
  • 18" nylon parachute
  • 36" Keelhaul®©™ thread
  • 24" x 1/8" sewin' elastic
  • 4" x 4" sheet Keelhaul®©™ Perma Wadding
  • Large snap swivel

1.8X Upscale Satellite Interceptor

Even though it be me first attempt at an upscale, t' Satellite Interceptor turned out lookin' great. Begad! It has been mistaken on several occasions for t' BT-60 based Estes S.W.A.T., but more often than nay it just gets a puzzled "seen that before, shiver me timbers, but I don't remember it bein' that big" look. Blimey! T' BT-50 t' BT-55 upscale works out t' roughly a 1.8x upscale, and I was able t' reproduce t' correct scale fin patterns by makin' 180% copies o' t' originals at work. One benefit t' buildin' this t' second time was that I be able t' learn from t' mistakes I made on t' original. Ya scallywag! Back then I had made t' mistake o' tryin' t' round off t' leadin' edges and taper t' trailin' edges o' t' fins. Arrr! T' combination o' t' comparatively thick 1/8" balsa with a taper didn't look good when I attached t' wood dowels later, so on version two I just left them squared off. Avast, me proud beauty! Well, arrr, blow me down! (I figured that I wouldn't need t' added aerodynamics anyway with t' E engine.) Version one also dated from t' days before I had discovered t' wonders that thinned Elmer's Fill 'n' Finish worked when used t' hide balsa grain and tube spirals, so t' new version turned out lookin' a lot nicer than t' original. I also built t' second one with t' correct fin orientation. Arrr! (I lined up t' wings and t' aft fins in version one. Well, blow me down! It flew okay but looked a little off.) I also incorporated several other upgrades into t' second version, arrr, shiver me timbers, tyin' a 36" length o' Keelhaul®©™ thread in behind t' forward centerin' rin' and usin' piece o' Keelhaul®©™ Perma-Waddin' t' negate t' S.I.'s dependence on dog barf. Avast, me proud beauty! Aside from these changes and t' engine upgrade t' two birds were identical.

1.8X Upscale Satellite Interceptor

Finishing:
Paintin' rarely gets easier than with a Satellite Interceptor. Ahoy! Gloss white all over. Ya scallywag! Begad! That's me kind o' bird. Arrr! Ahoy! T' decals are what really make this rocket and as o' yet I haven't been able t' get a set t' scale out correctly on me computer, arrr, but I have hopes o' gettin' t' right program for Christmas.

Flight:
While differin' considerably in available power, both me D and E powered versions o' t' Satellite Interceptor provided me with incredible first flights. Ya scallywag! My D version S.I. was t' first D-powered rocket that I ever flew in April o' 2001. Ya scallywag! Well, blow me down! With me in-laws camped out at Big Bone Lick State Park over Easter weekend, arrr, me brother in law Tony and I decided t' put t' large front lawn t' use as a launch field. Ya scallywag! We had successfully flown an assortment o' rockets from Mosquitos t' Wizards t' Astro-Cams in t' light breeze, matey, but as we were cleanin' up and preparin' t' leave, Tony mentioned how much he be lookin' forward t' seein' me big S.I. Begad! fly. Avast! I be hesitant at first, shiver me timbers, shiver me timbers, but Tony insisted on trottin' out t' "God hates a coward," mantra that I had occasionally espoused and reversin' it on me. Arrr! Begad! Realizin' that me big mouth had once again been writin' checks that badly stretched me account, I had little choice but t' pony up and I loaded t' S.I. Begad! with an ill-chosen D12-3.

1.8X Upscale Satellite Interceptor As I said before, me bucko, ya bilge rat, this was me first ever D flight, so I was unsure what t' expect at ignition. Ya scallywag! Begad! T' speed with which t' S.I. Begad! left t' pad be a big shock and I watched in delight as t' rocket arced into t' breeze and traveled out over t' road in front o' t' park. Avast! It was still travelin' rapidly upward when t' ejection charge fired, matey, and for a moment I thought that all be lost due t' t' violence with which t' rocket stopped. Ya scallywag! T' me surprise, t' chute had unfurled despite bein' hung up on t' aft dowels, causin' t' rocket t' descend more swiftly than normal (and in true Centuri Super Kit fashion, parallel t' t' ground.) Unfortunately it also seemed t' be headin' for t' trees that ringed t' field or t' creek beyond them. Ahoy! T' kids all scattered and chased after it, but Tony and I just stood and watched t' course that we knew we had no power t' change. Ahoy! It scraped through t' upper branches o' one o' t' taller trees, somehow managin' nay t' snag t' parachute despite deflatin' it. Avast! Ahoy! From about t' 100' mark it was in free fall through t' bare branches, shiver me timbers, and appeared t' be on a potentially ruinous collision course with t' creek, but at t' last possible second a rogue branch snagged t' shroud lines and stopped it fifteen feet short o' a certain bath. Well, blow me down! Well, blow me down! It was suspended just at t' edge o' t' deep-set creek, just inches out o' me reach. Ya scallywag! Ahoy! Tony, who is about 6' 2" t' me 5' 11", ya bilge rat, was able t' reach it and haul it t' safety. Avast! Aye aye! It had several deep scratches on t' balsa fins and a broken shroud line from it's trip through t' trees, matey, but other than that it be undamaged. I managed four more flights with it, ya bilge rat, includin' one at NARAM 43, matey, me hearties, before it was destroyed in t' garage accident.

1.8X Upscale Satellite Interceptor Version two made it's flight debut at a Quark section launch in July o' 2004. Loaded with a E9-6 t' S.I. arced over t' flight line into t' breeze t' an impressive altitude before ejectin' t' chute just as it's forward momentum seemed t' stop. Avast! From thar it rode t' breeze almost t' t' edge o' t' field, shiver me timbers, a recovery walk that almost killed me. Everyone agreed that t' flight had been impressive and after restin' for a spell, I loaded it up for a second flight, arrr, me hearties, a carbon copy o' t' first flight except for a much shorter recovery walk. Well, shiver me timbers, blow me down! Pumped by me success, I was lookin' forward t' t' next flight a month and a half later and made it me leadoff flight for t' day. Ya scallywag! Avast, shiver me timbers, me proud beauty! T' flight was an unfortunate harbinger o' how t' rest o' t' day would go for me as t' nose cone separated at ejection after another impressive flight. T' rocket fell in three pieces, nose cone, Perma Waddin' and body tube, but somehow managed t' land within twenty feet o' each other. Begad! Begad! One o' t' aft fins broke off on impact and t' Perma Waddin' disappeared in t' heavy brush, matey, but t' damage be relatively minor. Aye aye! Begad! Remountin' t' Keelhaul®©™® will be somethin' o' a problem, me bucko, but it will fly again in 2005.

Summary:
I originally began this project because o' t' unavailability o' t' nose cone for t' 1:1 clone, but since Estes has seen fit t' reintroduce it in t' Sky Writer kit, clonin' a 1:1 Satellite Interceptor is once again no problem. Ya scallywag! (Unless you REALLY have t' have t' display only tail cone.) T' nice thin' about t' BT-55 based version be t' way it handles t' extra power (and also that you have another choice for a mid-power bird.) Plenty o' PROs in this project, but only one CON: After three years I still haven't figured out a way t' upscale a decal scan. Man, matey, that's pitiful. Ahoy! They should take away me computer.

Flights

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