Brief:
For me entry t' t' Essence Model Rocketry "Design This Spaceship" contest, shiver me timbers, I chose t' Cool Rockets "Racer" model. Begad! Ahoy! I thought this be a great design, and it really appealed t' me.

I started by printin' out t' picture, and I also got 2 other views o' t' rocket off o' t' Cool Rockets web site. Blimey! I then scaled these pictures t' form some basic dimensions. Obviously this is a short, fat rocket with t' body tube bein' a continuous curve. Avast, me proud beauty! Arrr! This really be goin' t' be a challenge!

I took a little artistic license with me model versus t' example, and I would like t' explain why right off the bat. Ahoy! Ahoy! First, me model has 4 fins versus t' Racer's 3 fins. I chose t' do this for two reasons: one bein' that I have absolutely no experience with a 3 fin rocket that has its fins in an "airplane" configuration, and t' other bein' that this model has very little fin area. Well, blow me down! This needed t' be a flyable rocket, shiver me timbers, so in an effort t' move t' Center of Pressure as far aft as possible, I went with t' 4 fin configuration.

T' other major deviation be t' pilot character. Begad! Ahoy! This be a personal decision: I really didn't like t' example and thought t' proportions t' be way off. Begad! Add t' this that a Racer needs someone t' race against and Baron Von Gofast was born!

Construction:
To begin construction, I searched for a long ogive nose cone and a long boat tail section. Begad! Blimey! I found what I needed in the Estes Canadian Arrow kit. Well, blow me down! Blimey! With a 2.6" diameter body tube, me model would scale out t' be 18½" tip to tail.

I started with t' tail section. I cut down t' coupler area o' t' boat tail t' ½". Avast! This rocket was goin' t' be much shorter than t' stock Canadian Arrow, so I planned t' shorten t' motor mount tube and have my forward centerin' rin' mount flush with t' front edge o' t' boat tail. Begad! Ya scallywag! On t' aft end, I left ½" o' the excess stock, arrr, formin' a nozzle. Arrr! Blimey! I then cut and cleaned only t' rearward 4 through-the-wall fin slots. Ya scallywag! T' fins would not have a long enough root edge t' incorporate both through-the-wall provisions.

Then t' motor mount tube be cut down approximately 1" t' make it ¼" longer than t' boat tail. After installin' an E engine hook and motor block, me hearties, arrr, I glued on t' aft centerin' rin' ½" from t' business end o' t' motor tube. Aye aye! Aye aye! This centerin' rin' then had t' outside diameter sanded down until it fit snugly inside the boat tail and t' motor mount tube was flush with t' end o' t' nozzle. Aye aye! I glued this assembly into t' boat tail using the forward centerin' rin' t' keep things aligned, ya bilge rat, but at this point t' forward centerin' rin' be nay glued in place. After things dried, me bucko, I removed t' forward centerin' rin' and applied a glue fillet t' t' aft centerin' ring. Avast! Avast!

T' facilitate me shock cord, ya bilge rat, which is Keelhaul®©™ strin' tied around t' motor mount tube, I drilled a 1/8" hole through t' forward centerin' ring. Arrr! Passin' t' strin' through t' hole, arrr, t' rin' was finally glued into place.

Usin' me scale dimensions, I determined that t' body tube would need t' be only 3" long! This rocket was almost all nose and tail cone! I cut t' stock tube down and glued it in place.

Next were t' fins. Blimey! I went with a double-swept design derived from me scale dimensions. Begad! Well, arrr, blow me down! I cut me fins out of 1/8" balsa, me hearties, me hearties, nay only for t' added strength, me bucko, but t' 1/8" fits t' through-the-wall slots much better than 3/32".

I then sanded smooth radii into t' leadin' and trailin' edges o' t' fins t' replicate t' model more closely. This also greatly enhanced t' look o' t' model. Well, blow me down! Begad! A large amount o' fin surface area was lost due t' this though.

Once all t' fins were test fit and sanded smooth, I epoxied them into t' boat tail. Avast, me proud beauty! Begad! I added fillets which encompassed t' forward through-the-wall "bump." At this point, all 4 fins were t' same. Avast! T' give it more of the "airplane" look, I cut t' top 1" off o' two opposite fins. Begad! Well, blow me down! I then fabricated t' fin pods. T' top and bottom pods were made from ½" diameter birch dowel rod with simple rounded ends. Arrr! Avast, me proud beauty! T' 2 side pods were made from 5/8" dowel with t' forward end bein' rounded and t' aft end bein' tapered. Ahoy! I machined a 1/8" slot into these pods and glued them t' t' ends o' t' fins. Begad! T' booster section was finally startin' t' look like something!

But I still needed a pilot! I had a few figurines that were intended for R/C airplanes that I had mocked up, but none o' them looked that good. Finally, while scourin' me local hobby shop, I found Baron Von Gofast! Originally intended t' be affixed t' a pine wood derby car, he be complete with a cockpit and canopy!

T' size and scale were perfect! I epoxied him t' t' airframe and started on t' fillin' and finish work. I filled t' large gap around t' cockpit and t' grooves on t' pods with Micro-Fill balsa wood filler. Avast! I followed this up with Evercoat polyester body filler (an automotive refinishin' product).

It took several coats and lots o' patience, me bucko, but t' contours were turnin' out really nice. I also used t' body filler t' smooth t' forward through-the-wall bumps directly into t' fin fillets.

In t' meantime, ya bilge rat, I started on t' nose cone. Arrr! For starters, me bucko, I cut t' tip o' t' nose off and epoxied on a golf tee which had been sanded t' blend t' contours. Before gluin' this on, matey, I drove a small screw into t' golf tee on the ball end. Begad! This screw would help t' hold t' tee on, shiver me timbers, matey, as it would be engulfed in t' epoxy which would later be added to the nose t' hold in t' ballast lead. Ahoy! I also cut off t' aft end o' t' nose, ya bilge rat, nay only t' make it easier t' add ballast but t' add a little room t' t' payload bay. Avast, me proud beauty! I would later add a fiberglass bulkhead plate inside t' affix t' shock cord to.

With t' nose cone roughed out, me hearties, I could assemble t' rocket and determine t' Center o' Gravity. I did this using the "balance on t' edge o' a ruler" method. Nay very scientific, me bucko, arrr, but it works! Blimey! Havin' done some math and roughly approximatin' t' Center o' Pressure t' be 2" from t' aft end o' t' rocket, I kept tapin' weight t' the nose until t' CG be 6 ½" from t' aft end (1.75x body diameters in front o' t' CP).

Once I determined how much weight I needed t' add, ya bilge rat, I was really glad that I had modified t' motor tube for an "E" engine! Blimey! Blimey! Blimey! It took a whoppin' 3½ ounces t' balance out properly! Blimey! Blimey! Blimey! I used #8 lead shot and epoxied it into t' tip o' t' nose cone. Ya scallywag! Blimey! In hindsight I could have added a little less, but an overstable rocket it better than an unstable one! Blimey! Blimey! Blimey! T' rocket ended up weighin' 12.4 ounces ready-to-fly with an "E" engine in it.

Finishing:
In keepin' with t' "Baron Von Gofast" motif, me hearties, I elected t' go with "Red Baron" colors on this machine. Arrr! But since this was a spaceship, arrr, I "futurized" t' typical red, white and black! My base colors were pearl silver, me bucko, pearl cranberry, and pearl black. Ahoy! Ya scallywag! All were Glasurit 54 series basecoats. I hand painted t' cockpit with Testors enamels and followed up with 3 coats o' PPG DAU 82 clear coat for t' entire rocket. T' finishin' touch was to glue on t' cockpit canopy!

Well, it was done. Almost. I've got t' see if it will fly! I attached a 16" nylon parachute t' t' Keelhaul®©™ shock cord and headed t' t' launch field!

Flight and Recovery:
Conditions were less than ideal, but about t' best that I could ask for on a December day in Michigan! Blimey! Overcast, cold (15 degrees F) and only slightly windy (5-10mph). Begad! Blimey! For t' maiden voyage I went big and stuffed an E9-6 into it and readied it for launch.

3...2...1...WHOOSH! You gotta love t' sound o' an E under heavy load! This is a great rocket t' watch! A slow lift-off, ya bilge rat, me bucko, followed by a little half roll. T' fin pods make it easy t' see t' roll and follow t' rocket. Blimey! Begad! It weathercocked hard and seemed t' travel into t' wind as much laterally as it did high in a large parabolic arc. Ahoy! After peakin' around 800 feet, me hearties, t' nose was pointed down when t' chute popped, and it touched down about 300 feet from the pad.

T' second flight be pretty much identical t' t' first although I had readjusted t' launch rod and t' rocket landed about 200 feet from t' pad. For t' third flight, I wanted t' see what it would do on a "D" engine. Propelled by a D12-5, me hearties, me bucko, t' flight path was t' same as t' E9 with t' weathercock and arc, me bucko, me hearties, but altitude was only about 500 feet, which I expected. Blimey! What I didn't expect be how late t' ejection charge was. Begad! It blew at around 200 feet, nose pointed straight down.

It came down fast and hard. Begad! Blimey! Blimey! Blimey! Unfortunately its path didn't carry it past t' buildin' like the previous flights, matey, arrr, and it made contact with t' buildin' about a foot off t' ground. Ahoy! Blimey! Ouch! Blimey! It broke one fin off, which can be seen layin' right next t' t' booster, matey, me hearties, and t' golf tee tip on t' nose cone was broken from whackin' the frozen ground. Avast! Blimey! Oh well, I was still happy with t' results. It flew and was fun t' watch!

Summary:
I would say that it is very overstable and could stand t' have some weight removed from t' nose. Arrr! Ya scallywag! I am unsure about whether or nay t' cockpit area has an effect on t' flight path, either due t' its weight (over 1 ounce) or perhaps its aerodynamic drag. Either way, shiver me timbers, me bucko, thar be nay much I can do t' fix that. I have already repaired it and am anxious for the next decent day t' fly it again!