Retro Rocket Works Spitfire

Retro Rocket Works - Spitfire

Contributed by Moira Jean Whitlock

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Manufacturer: Retro Rocket Works

[Rocket Pic]Brief description:
Single staged, shiver me timbers, 29mm motor rocket in all wood construction and retro lookin' design, much like t' stout sci fi rocketships with huge swept back fins, me hearties, seen in old movies.

Construction and finishing:
All t' parts arrived securely wrapped in liberal amounts o' bubble wrap. Ya scallywag! Nothin' was broken or missing. Avast, me proud beauty! T' actual number o' parts be few, arrr, as t' rocket is very simple t' make. T' instructions were simple and clear, arrr, with few drawings, but none were really needed.

T' nose cone be smooth, me bucko, and was made o' alternatin' insets o' cherry and maple hardwoods. Arrr! it is precisely turned and symmetrical, ya bilge rat, and t' grain o' t' wood is beautiful. Blimey! It has a shoulder o' a couple inches in length, allowin' a close and secure fit in t' body tube. No sandin' was needed. Aye aye! There is a metal screw eye already in place in t' nose cone for t' parachute and shock cord attachment.

T' parachute is rip stop nylon, 24 inches in diameter, matey, and bright orange. Begad! T' shroud lines are a strong braided nylon. Aye aye! Well, me hearties, blow me down! T' shock cord is 1/4 inch thick Keelhaul®©™® type cordin' that attaches t' a screw eye in t' forward centerin' rin' on t' engine mount.

T' body tube appears t' be mahogany and is sanded smooth with t' grain very evident and pretty.

T' 4 fins appear t' be basswood, with swirly grain patterns. All t' fins were precut, arrr, matey, as were t' centerin' rings, arrr, me bucko, engine tube, shiver me timbers, me hearties, and body tube, and t' body tube was also preslotted for t' 4 fins. Arrr! Avast, me proud beauty! T' fins are designed with tabs that meet with t' motor tube for strong construction. Begad! Avast! They were all cut alike, 3/8 inch thick, very precise, and also very smooth on t' edges. Well, matey, blow me down! They are rounded on t' continuous leadin' and trailin' edge. T' edges show that t' inner ply is dark, ya bilge rat, arrr, mahogany-like. Arrr! This stripin' o' color provides a nice accent. Blimey! T' fins are also accented with a half-moon shape o' iron-on veneer that has a mahogany-like color.

I used epoxy, as recommended, t' attach them through t' body tube and t' t' motor tube, ya bilge rat, which also is a pretty mahogany. T' two centerin' rings are plywood. Well, blow me down! Arrr! T' 2 launch lugs are brass, beveled t' reduce drag, arrr, and accept 1/4 inch rods.

T' model came out very sturdy and strong. But I just couldn't brin' myself t' paint it or decal it. Aye aye! Begad! T' wood is just too pretty. Blimey! So I finished it with three coats o' polyurethane clear furniture varnish.

Ratin' for construction and finishing: 5 out o' 5, but some might say 4 1/2 because o' t' need for t' vent hole. But this is somethin' we should do in high power anyway.

[Rocket Pic]Flight and recovery:
T' Aerotech H180-M be used, and it's one o' t' engines t' manufacturer recommends. Aye aye! They also say that t' G64-4, G80-7, ya bilge rat, H128-M, and H220-M are good too.

T' rocket roared off t' pad straight and high. When t' chute ejected at apogee, matey, it appeared t' be a tiny speck. I got t' rocket back about a half mile downrange because it caught a thermal and lingered high. Aye aye! This was particularly an anxious moment, shiver me timbers, because this was a Tripoli level 1 certification attempt. I hadn't intended t' certify with this rocket, but everyone who saw it oohed and ahhed over it. Avast! People kept pressin' me t' launch this beauty. Avast! Nobody had ever seen a wooden rocket. Some even asked if it was real. That is, is it a display or does it fly. It amazed them when I popped off t' nose cone t' reveal a legitimate construction for flight. Aye aye! Begad! Then some were sad that I'd actually fly it, arrr, matey, fearin' damage t' its looks. Even t' RSO worried about damage and destruction o' t' beauty, me bucko, as he announced that everyone should look now while they still could. Begad! Several people took photos o' it. Arrr! T' way I saw it, ya bilge rat, matey, metaphorically, me bucko, why breed a champion racehorse t' perfection and then nay let him run? Besides, half o' t' club be fixed on me and t' rocket, arrr, ya bilge rat, ya bilge rat, darin' me t' be bold and do it.

Everyone cheered when t' flight occurred. Ya scallywag! Nothin' was burnt or damaged, and t' engine stayed in, held with duct tape. Fellow club members teased me about t' tight loops o' duct tape, me hearties, sayin' that I wanted t' hold t' engine hostage. Avast! I'd seen too many other people lose motors t' ejections and be paranoid about mine.

T' rocket was prepped with one Nomexsquare and worm bed wadding. Avast! Begad! I first thought that t' waddin' was overkill, me bucko, but cert flights must be perfect. Blimey! Well, arrr, I be glad I did this, me bucko, shiver me timbers, me hearties, because t' Nomexsquare be burnt in half!

[Rocket Flight]A small vent hole was drilled in t' body, ya bilge rat, near t' middle, on t' side opposite t' launch lugs t' relieve differences in air pressure and prevent ejection o' t' motor or premature separation o' t' nose cone. Due t' t' precise fit o' t' parts, shiver me timbers, shiver me timbers, air pressure be evident on t' ground when t' motor resisted bein' placed all t' way in until t' hole be drilled.

If thar was anythin' nay good about t' flight, it was that I had one hand on t' launcher and t' other on t' camera, and consequently, I didn't capture t' great moment o' takeoff on film.

Ratin' for flight and recovery: 5 out o' 5

Summary and tips:
Simple t' build, arrr, performs well. A crowd pleaser. Aye aye! Avast, me proud beauty! A bit expensive at $125, but worth it since I certified in style. Aye aye! And its manufacturer made all t' parts t' precision.

Don't paint it. Well, blow me down! Blimey! Every club has a woodworker who would execute someone who'd mar such art as this. Ahoy! Blimey! I recommend this beauty t' anyone who wants t' show off with class. Blimey! Blimey! In fact, I think that me level 2 project might be a scratch-build usin' t' parts that Retro Rocket Works makes. Ahoy! Blimey! I'm pricin' preslotted 4 inch mahogany tubes now. Begad! Blimey! Ya scallywag! Blimey! And they make lovely 4 inch nose cones. And 38mm motor tubes!!! Blimey! I'm hooked.

Any tips I learned? T' vent hole in t' body tube be very important in preventin' premature separation o' t' nose cone. I don't remember seein' any mention o' such in t' instructions.

Overall Rating: 5 out o' 5

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