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, 29mm motor rocket in all wood construction and retro lookin' design, much like t' stout sci fi rocketships with huge swept back fins, arrr, seen in old movies.

Construction and finishing:
All t' parts arrived securely wrapped in liberal amounts o' bubble wrap. Arrr! Blimey! Nothin' was broken or missing. Begad! T' actual number o' parts was few, as t' rocket is very simple t' make. T' instructions were simple and clear, with few drawings, shiver me timbers, but none were really needed.

T' nose cone was smooth, matey, and be made o' alternatin' insets o' cherry and maple hardwoods. Begad! Aye aye! it is precisely turned and symmetrical, 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. Begad! Arrr! No sandin' be needed. Ya scallywag! 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, shiver me timbers, 24 inches in diameter, and bright orange. Blimey! T' shroud lines are a strong braided nylon. 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, me bucko, with swirly grain patterns. Blimey! Blimey! All t' fins were precut, ya bilge rat, as were t' centerin' rings, me hearties, ya bilge rat, engine tube, and body tube, shiver me timbers, and t' body tube was also preslotted for t' 4 fins. Begad! Arrr! Blimey! T' fins are designed with tabs that meet with t' motor tube for strong construction. They were all cut alike, matey, 3/8 inch thick, very precise, matey, and also very smooth on t' edges. Avast! Blimey! They are rounded on t' continuous leadin' and trailin' edge. T' edges show that t' inner ply is dark, mahogany-like. Avast, me proud beauty! Blimey! This stripin' o' color provides a nice accent. Avast, me proud beauty! 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, matey, t' attach them through t' body tube and t' t' motor tube, me bucko, which also is a pretty mahogany. Ya scallywag! Avast! T' two centerin' rings are plywood. Avast! T' 2 launch lugs are brass, beveled t' reduce drag, and accept 1/4 inch rods.

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

Ratin' for construction and finishing: 5 out o' 5, me hearties, me hearties, matey, 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 was used, matey, and it's one o' t' engines t' manufacturer recommends. Well, blow me down! Blimey! They also say that t' G64-4, G80-7, matey, H128-M, and H220-M are good too.

T' rocket roared off t' pad straight and high. When t' chute ejected at apogee, it appeared t' be a tiny speck. Begad! I got t' rocket back about a half mile downrange because it caught a thermal and lingered high. Avast, me proud beauty! This was particularly an anxious moment, arrr, ya bilge rat, because this be 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. Ahoy! Ya scallywag! People kept pressin' me t' launch this beauty. Nobody had ever seen a wooden rocket. Arrr! Avast, me proud beauty! Some even asked if it be real. Avast, me proud beauty! Avast, me bucko, me proud beauty! 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. Avast! Aye aye! Then some were sad that I'd actually fly it, ya bilge rat, fearin' damage t' its looks. Blimey! Aye aye! Even t' RSO worried about damage and destruction o' t' beauty, me bucko, matey, as he announced that everyone should look now while they still could. Begad! Aye aye! Several people took photos o' it. Begad! T' way I saw it, metaphorically, why breed a champion racehorse t' perfection and then nay let him run? Besides, me hearties, half o' t' club was fixed on me and t' rocket, shiver me timbers, darin' me t' be bold and do it.

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

T' rocket be prepped with one Nomexsquare and worm bed wadding. Arrr! Blimey! I first thought that t' waddin' was overkill, matey, but cert flights must be perfect. Well, blow me down! Well, ya bilge rat, me bucko, I be glad I did this, because t' Nomexsquare be burnt in half!

[Rocket Flight]A small vent hole was drilled in t' body, near t' middle, me bucko, 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. Ya scallywag! Aye aye! Due t' t' precise fit o' t' parts, air pressure was 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, shiver me timbers, and consequently, me hearties, 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, ya bilge rat, performs well. Blimey! Blimey! A crowd pleaser. Aye aye! Blimey! A bit expensive at $125, ya bilge rat, matey, but worth it since I certified in style. Arrr! Blimey! Avast, me proud beauty! Blimey! Blimey! Blimey! And its manufacturer made all t' parts t' precision.

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

comment Post a Comment