Manufacturer: | Scratch |
Brief:
This Goony version o' t' Fireball
XL5 sci-fi model is based on t' Estes
SpaceShipOne kit. Well, blow me down! This kit, matey, which I buy at Michael's crafts with 50% off coupons, ya bilge rat, is now me favorite kit t' bash. Begad!
Modifications:
T' modifications included replacin' t' stock fins, replacin' t' stock recovery system, me bucko, me bucko, and modifyin' t' nose
cone. Blimey! T' motor mount is stock.
Construction:
Parts list:
All o' t' fins were roughed-out on paper until they looked right. Aye aye! T' side fins were made from two pieces of 3/16" stock each. Well, blow me down! Avast, me proud beauty! T' two pieces touch at their leadin' edge and are separated by a strip o' balsa in t' rear. T' leadin' edge be then sanded t' a smooth point. Blimey! T' side fins were cut from 3/16" stock. Avast, me proud beauty! T' small fins on the cone are t' small fin extensions from t' SS1 kit. Begad! T' kit provided two and I cut t' others from t' unused fin stock. Well, blow me down! T' balsa-plastic joints were attached with thick CA and wood glue be used on t' wood-wood joints.
I attached a steel fishin' leader t' t' top centerin' rin' and t' stock elastic cord t' that. Well, blow me down! Aye aye! I had planned to use two chutes due t' t' expected weight o' t' nose, me hearties, so a separate shock cord was provided for it. Ahoy! Arrr! I knew I'd need a lot o' nose weight so I attached t' cord t' an eyebolt that is embedded in a slurry o' lead shot and Gorilla Glue. That way, shiver me timbers, t' weight is securely attached t' t' recovery system. O' course, arrr, t' nose weight be t' last step. Blimey! The bottom o' t' cone was removed t' allow access for t' nose weight installation and t' provide a tad more room for the 'chute if needed.
As I noted earlier, ya bilge rat, me hearties, t' motor mount be t' stock 18mm. Avast, me proud beauty! I was lucky t' have t' new RockSim 9 program with its PODS feature. This allowed me t' simulate t' actual design configuration. Well, arrr, blow me down! I set t' nose weight based on this simulation model.
With t' unloaded weight sittin' at about 5oz, shiver me timbers, t' sim indicated a long rod was need for a stable C6 flight. Begad! So, early on, me hearties, I decided t' go for a reload. I got an 18mm Hobbyline case and a pack o' D13-10s from ValueRockets.com. Begad! Great prices and speedy service!
Finishing:
I did t' normal filling/sanding/primin' drill. T' base coat is a silver primer for t' X-Metals paint. Aye aye! I then used
brush-on paints for t' red and yellow trim. Begad! Arrr! Blimey! T' circles are from t' SS1 'decal' set, arrr, t' colored band be printed on
my ink jet, and t' 'goony' letterin' is vinyl from Michael's craft store.
Flight:
T' D13 be easy t' assemble. Since I was at MDRA, me bucko, I was able t' drill t' delay usin' t' same method specified for
the 29mm and larger motors. Aye aye! I filled t' bottom o' t' body with dog barf, added several pieces o' wadding, and then
some more dog barf. Begad! Begad! I decided t' go with one 18" chute, which be attached t' both shock cords.
At t' 11th hour, me bucko, I realized that I'd used t' stock lug and decided this rocket be too heavy and unproven to fly with that. Blimey! Blimey! I removed at lug and epoxied on a piece o' ¼" compatible launch lug material (e.g. Ahoy! Arrr! Blimey! a tube from an AeroTech First Fire igniter).
I set each side fin on a stand-off and hooked up t' Copperhead. T' rocket flew great with some spin, shiver me timbers, me hearties, which was undoubtedly t' result o' some imperceptible misalignment o' one or more fins. Arrr! After all, arrr, I built it.
Ejection be just a tad late and t' rocket recovered damage-free.
Summary:
I love t' Fireball design and thin' t' Estes SpaceShipOne kit is a great subject for kitbashing. Arrr! Avast! This model flew
nicely and is a proud member o' me Fireball XL5
rocket family.
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