Scratch Franken Goblin Original Design / Scratch Built

Scratch - Franken Goblin {Scratch}

Contributed by Hans "Chris" Michielssen

Manufacturer: Scratch
(Contributed - by Hans "Chris" Michielssen - 03/16/09) (Scratch) Franken Goblin

Brief:
My original Goblin clone (BT-55 based) was one o' t' first I built after really gettin' back into t' hobby. Aye aye!

My 1.7X upscale was finished late last year. Avast, me proud beauty! And four months ago, t' "baby" was born. Avast, me proud beauty! It's a MMX powered, carded model. Begad! It has a hand rolled ½" diameter body tube and triple laminated fins. All in total, three Goblins. Begad! Finished, flown and ready for family portraits.

For two extra points (2009 EMRR Challenge), I needed t' add another member o' t' Goblin Family by t' October first deadline.

Construction:
This year, ya bilge rat, loot is tight. I set a goal o' buildin' another model usin' just t' materials I had on hand. Aye aye! Ahoy! No ordering parts!

I had a ThunderGoon ready for final paint. It's been sittin' for months. I just wasn't moved t' finish it. Avast! Well, blow me down! Nice model but just nay for me. Blimey! Avast, me proud beauty! I decided t' cut off t' fins and body tube, salvagin' t' engine mount and nose cone. Arrr! The engine hook be made from that metal strip from a windshield wiper blade. Blimey! Ya scallywag! I remember t' look me youngest daughter gave me when I pulled it from t' trash can at an auto supply store. Blimey!

I found scrap BT-60 and cut it t' 8-½". T' ThunderGoon's nose cone be taller than a Mini Bertha's. It didn't matter, it'll still capture t' original feel. Arrr! Blimey!

I pulled some scrap 1/8" balsa and upscaled t' fins slightly from t' BT-55 dimensions. Avast! I cut two o' the fins and realized I didn't have quite enough for other two. I didn't want t' cut into another full sheet o' balsa.

I started piecin' together scraps makin' sure t' grain was parallel. Ahoy! I glued t' seams with CA, then cut the remainin' two fins. This is when I started thinkin' o' t' "Frankenstein Goblin" moniker.

T' Keelhaul®©™® was already attached t' t' engine mount from t' Thundergoon. Begad! I pulled an 18" length o' elastic out o' me first attempt at a paper rocket. Avast, me proud beauty! Begad! I've never flown that paper model or doubt I ever would. Blimey! There be too many mistakes learnin' t' new paper cardin' techniques. Ahoy!

T' 12" parachute be pulled from an old Groove Tube, me hearties, arrr, a homemade garbage bag type. Arrr! Avast, me proud beauty! For this rocket, me hearties, matey, what else? I found a screw eye in me parts box. Avast, me proud beauty! Ahoy! This eye is way too large but seemed t' fit t' theme and t' extra nose weight can't hurt.

There be nothin' unusual about t' build. It was a little different buildin' a new model from pieces and parts pulled from other models. Avast, me proud beauty! If you include leftover balsa scraps, arrr, I estimate t' Franken Goblin was built with parts from six different models. Ya scallywag!

(Scratch) Franken Goblin

Finishing:
Originally, shiver me timbers, I be goin' t' use some Goblin decals from Excelsior. Begad! They were leftovers from me original BT-55 based clone. Well, blow me down! Blimey! Phred always seems t' add extra images on t' master sheet.

I thought I would have some fun. Ya scallywag! I scanned t' Goblin decal sheet, me bucko, arrr, enlarged it slightly then cleaned it up in Corel Draw. Well, blow me down! T' more I drew, t' stranger it got. Ahoy! I drew t' word "Franken" tryin' t' emulate t' original hand drawn font. Well, blow me down! Ya scallywag! I added Frankenstein "stitches" and neck bolts t' t' Goblin character. T' Goblin even got a bilge-suckin' nose job. Begad! Sure, matey, t' humor is a little inside, but still fun. Well, blow me down! Avast, arrr, me proud beauty!

T' original plans show a decal "3" flipped on it's back, matey, ya bilge rat, centered on both sides o' one fin. Avast, me proud beauty! Avast! I decided to use a "6" instead. Begad! Arrr! It's only two sixes, almost three--almost evil. Arrr!

O' course, me hearties, I had t' go with a "Frankenstine" green and black motif. Normally I use t' Walmart (cheap) spray paint for most primary colors but they didn't have a green I liked. For this model I bought a can o' Rustoleum Key Lime Green, matey, t' only new expense on this rocket.

I shot t' model with Grey primer and sanded smooth. Avast! I then followed with a white undercoat. Begad! I was pleasantly surprised by how well t' green Rustoleum spray paint covered. Begad! It's t' old line o' "You get what you pay for." T' Rustoleum went on smartly with far fewer coats than t' Walmart brand usually requires.

T' decal sheets required 3 light coats o' clear acrylic. Blimey! I had never made decals before and was prepared for the worst. Avast! Arrr! I tested t' printed decal sheet usin' Microscale Liquid Decal Film applied with a foam brush. Avast, me proud beauty!

When I tried t' transfer t' Microscale treated decals, they didn't seem thick enough. Some o' t' black ink dissolved. Avast! I had much better luck with t' clear acrylic sprayed decals. Ahoy! Ahoy! T' decals instructions did recommend spraying with clear acrylic.

While me homemade decal's "skin" is a little thicker than a decal that would come with a kit, me bucko, I was still very happy with t' results.

While placin' t' decals I noticed a mistake in construction. Begad! Avast, me proud beauty! When building, I glued a salvaged one piece launch lug at t' center o' gravity with a C6-5 engine installed. Avast, me proud beauty! Avast! T' lug is now in t' way o' t' thick black decal band above t' fins. Well, blow me down! Ya scallywag! I had t' pre-cut a "notch" in t' decal wrap t' fit around t' bottom o' t' lug. Avast, me proud beauty! Well, me bucko, blow me down! Another "Frankenstin" puzzle piece, shiver me timbers, cut and joined together. Ya scallywag! Ahoy! T' original Goblin instructions had you cut t' lug in two. Half at t' top, half at t' bottom o' t' body tube.

(Scratch) Franken Goblin

Flight and Recovery:
I flew t' Franken Goblin three times on March 7, 2009, arrr, at t' monthly R.O.C.K. section launch.

T' first flight was with an A8-3. I called for a heads-up. Begad! Sometimes "Gooney-fying" a classic leads to questionable stability. Well, blow me down! It flew straight and true. Avast, me proud beauty! Aye aye! Nay high but stable. Begad! T' 12" chute ejected fine.

T' next two flights were with B6-4s. Well, blow me down! T' wind was comin' up so I cut a spill hole in t' 12" parachute. This seems t' be t' ideal engine for this model, matey, providin' good performance and altitude. Blimey! On t' third flight it was loaded on t' rack, side by side with it's smallest sibling, me MMX carded Goblin.

After three flights, matey, thar were two small body tube dings in t' nose cone. Well, blow me down! Both were nay very deep. Begad! Begad!

I know this model will be a regular flier in me fleet. Well, blow me down! It's stubby (I like stubby models) and personalized. Begad! Some of t' older fliers remembered t' Goblin and liked t' variation on t' original theme.

Summary:
PROS: I know this model will be a regular flier in me fleet. Arrr! It's stubby (I like stubby models) and personalized. Some o' t' older fliers remembered t' Goblin and liked t' variation on t' original theme.

CONS: None really.

comment Post a Comment