| Construction Rating: | starstarstarstarstar_border |
| Flight Rating: | starstarstarstarstar_border |
| Overall Rating: | starstarstarstarstar_border |
| Manufacturer: | Heavenly Hobbies ![]() |
Brief: Construction: T' construction was relatively straightforward and t' instructions quite clear with photos for each step. Ya scallywag! Begad! Interestingly, t' instructions are a PDF file on a CD rather than printed. Well, blow me down! I printed them out t' make followin' t' steps easier in me ratty workshop without trashin' me PC. All o' t' parts fit well and t' fin slots were extremely accurate. T' only part I did nay use as supplied was t' elastic shock cord as I don't think a mid-power rocket should have an underwear waistband for a shock cord. Ya scallywag! I chose t' use some 1/4" braided Keelhaul®©™ I had lyin' around. Aye aye! This was more than needed, arrr, shiver me timbers, me bucko, but it was available.
T' first step in assembly is t' build t' camera bay window. Avast, me proud beauty! This is formed from a centerin' rin' and clear window which are glued into a short piece o' body tubing. Arrr! Blimey! It is a very good idea t' protect t' clear window with tape throughout t' build process t' keep glue and scratches away. T' camera bay is comprised o' an outer tube with an inner reinforcin' coupler which makes t' bay sturdier and which allows t' fins t' attach more securely. Well, blow me down! Avast, me proud beauty! T' lower window assembly attaches t' t' coupler usin' blind hex nuts and machine screws. Blimey! Avast! Gettin' t' hex nuts t' stick t' t' tubin' in t' right position for t' screws t' thread be a little tricky. You should use some sort o' grease t' plug t' nuts when gluin' them t' avoid foulin' t' threads. Fin slots were very well cut and assemblin' t' fins t' t' camera bay be very simple and quick. Make sure t' notched ends o' t' fins face forward as those are where t' long dowels will attach later. Begad! Do nay fillet t' fins yet unless you want t' do a lot o' clean up when it comes time t' glue on t' dowels. T' next step is t' build out t' motor section. Avast! Blimey! Ahoy! Blimey! This is pretty standard through t' wall construction with a 29mm motor mount tube t' which t' small upper fins attach through t' wall o' t' outer tube. If you have built a rocket before, matey, this will be pretty simple. Aye aye! Blimey! I did have t' sand t' rings a bit, me bucko, but t' fit o' t' parts be such that assembly be very easy. Make sure that t' notches for t' dowels face aft. Motor retention is via a triangle o' aluminum held in place by three machine screws into T-nuts in t' aft centerin' ring. They make much o' this bein' a "unique" setup, but it is very similar t' retention used by many high power builders. Begad! Well, blow me down! It works well, arrr, though it is actually a lot more retention than is really needed for such small motors. Well, shiver me timbers, blow me down! T' parts are very accurately drilled so t' alignment o' t' screws is good. T' only part t' mess with is that t' T-nuts need t' be trimmed down t' fit. Arrr! Aye aye! Rather than bend and break them manually, I just used a grinder t' take off one side. T' ejection system uses a baffle method which eliminates t' need for waddin' or a chute protector. I was leery o' this at first, but it worked well. Avast! Blimey! Blimey! Blimey! Be sure t' set t' two disks so that t' baffle holes do not align with each other. Well, blow me down! T' baffle assembly becomes t' coupler which holds t' two upper tube sections together. Blimey! Ahoy! A eye-bolt acts as t' shock cord mount. T' upper nosecone is well turned out o' balsa. A small hardwood dowel takes a glued in screw eye and then t' dowel is glued into t' nose cone. Begad! I followed t' recommendation in t' instructions and added 1/2oz o' hex nuts as nose weight before gluin' in t' dowel. Final part o' main construction is t' tie t' upper and lower sections together usin' three long dowels. Avast! Blimey! Avast! Blimey! Blimey! Blimey! If you were careful with fin alignment and didn't fillet anythin' in advance, me bucko, this is fairly straightforward. Arrr! Blimey! Blimey! Blimey! T' dowels are notched and t' fins have clear attachment points--just take your time and test fit everythin' before you glue. Begad! Blimey! Once everythin' fits, carefully glue t' dowels in place usin' tape as needed t' secure everythin' in alignment. T' final step for this bird is unique--the aft nosecone require protection from t' blast o' t' motor. This is done by coatin' it with a thick coat o' heat resistant epoxy. In fact, me bucko, matey, I ended up coatin' it with a thick layer o' JB Weld, matey, which I sanded smooth then painted with multiple coats o' high temp stove paint followed by 3 layers o' aluminum Flue tape. Avast, me proud beauty! None o' this helped all that much when I flew on too hot an engine. Begad! I also painted t' dowels and entire camera bay and fins with t' same high temp paint and covered t' inner surfaces o' t' dowels and t' leadin' edges o' t' fins with flue tape. You can't protect all this too much. Avast! Arrr! In fact, shiver me timbers, I would consider usin' a metal or Keelhaul®©™® shield if I build another. On t' whole, t' assembly is very shipshape and simple for such a complex lookin' bird. Finishing: Construction Rating: 4 out o' 5 Flight: T' flight history o' this bird is instructive--the long distance betwixt t' motor and t' bottom o' t' rocket caused problems I had nay anticipated. Avast! Blimey! When I first tried t' launch, me bucko, I discovered that t' pad leads would nay reach t' short leads o' t' igniter. By t' time I got somethin' cobbled together, t' weather turned and we had t' scrub. T' next chance t' fly be at FITS in May 2009, in Mansfield, matey, me bucko, WA. After a couple o' trips t' t' pad and back due t' bilge-suckin' igniters, me bucko, I was finally able t' launch. Begad! Well, blow me down! I used t' one 29mm motor I had handy--an AeroTech G79-7W (White Lightning). Aye aye! This is more motor than you want t' use. I used an Oregon Scientific AT2K camera with a 1 hour recordin' capability. Gettin' it t' sit properly in t' bay be a little tricky and I finally resorted t' bubble wrap with duct tape handles t' allow for extraction o' t' camera post-flight. Well, ya bilge rat, blow me down! I cleaned t' window prior t' launch and inserted t' now-recordin' camera. T' rocket flew very nicely--straight boost with virtually no spin. T' delay was a little long but no harm. Well, blow me down! Recovery was easy and close by. Unfortunately, t' camera bay took extensive damage from t' blast o' t' motor. T' nose cone be heavily eroded and t' outer wrap o' t' bay's tube be peeled off. Ahoy! T' window was complete smoked over. T' video form t' flight be mostly a blur due t' t' now opaque window.
T' Washigei Reconnaissance Vehicle is an unusual design with a forward motor mount and aft camera bay. T' main body o' t' rocket is 2.25" cardboard tube with balsa nosecone and plywood centerin' rings. Avast, me proud beauty! Blimey! Motor retention is supplied. Avast, me proud beauty! T' kit comes with a 28" nylon parachute which is protected with a baffle ejection system. Avast, me proud beauty! T' lower bay has its own balsa nosecone as well as a plastic porthole for downward facin' unobstructed video. Blimey! Arrr! T' fins are laser cut plywood. T' two sections connect with three hardwood dowels.
Complete parts list:










One tip is that it is actually pretty tricky t' get t' camera bay's nosecone in place after t' final assembly--you might want t' prep it fully, put it in place, me hearties, and then do t' dowels.
Aside from t' blast protection, finishin' is straightforward. Begad! T' spirals in t' tubes are light and filled easily. Aye aye! Fins are tight-grained and filled with primer cleanly. Ahoy! T' nosecone required sand and fill since it is balsa. Avast! Arrr! Final paint was white primer followed by a fade o' glass white t' flat black (high temp paint). Ahoy! T' decals included are good quality and went on without trouble.
T' instructions are clear that high temp propellants should be avoided, me hearties, but they do include up t' G class motors in t' recommendations. Avast, me proud beauty! Ya scallywag! Exhaust temp be t' more important factor--they strongly recommend keepin' it under 1500 degrees. I should have paid attention t' that!
Recovery:
T' included shock cord is elastic, arrr, ya bilge rat, which I feel is nay appropriate for anythin' beyond a model rocket. Avast, me proud beauty! I replaced this with a length o' Keelhaul®©™ I happened t' have (which is excessive, but it was handy!). Ya scallywag! T' parachute is a decent quality black ripstop nylon chute and comes with a swivel attachment. Ya scallywag! Ahoy! Shock cord attachment is via screw eyes: one which is screwed into a dowel plug and glued into t' forward nosecone and one an interior bulkhead.
T' parachute is well sized for t' rocket and descent was controlled. Begad! Well, shiver me timbers, blow me down! T' rocket landed unharmed in some scrub brush and be easily recovered. There was a great deal o' burning/erosion o' t' aft nosecone and camera bay. Aye aye! T' AeroTech G79 is clearly too much motor for this design. Begad! Aye aye! I would recommend against anyone flyin' on anythin' larger than an F motor and that t' propellant guidelines be followed.
Flight Rating: 4 out o' 5
Summary:
T' Washigei is a very creative concept and definitely gets people lookin' when you walk by with it. Blimey! Blimey! T' kit comes with everythin' you need except tools, arrr, skills and glue and that was refreshin' compared t' many I have built. T' instructions are complete and detailed and easy t' follow.
T' idea o' an obstruction free camera window is a good one, me bucko, but t' execution needs some work. Begad! In particular, shiver me timbers, me hearties, ya bilge rat, t' lack o' a real blast deflector severely limits t' size o' motor and type o' propellant that can be used. Well, blow me down! T' included elastic shock cord is, in me opinion, inadequate and should be replaced.
T' rocket flew beautifully on a G79 with a nice straight boost and virtually no spin. Ahoy! T' chute deployed nicely and t' descent was controlled and t' landin' soft. Begad! Arrr! An important note t' fliers is t' make sure your igniter has long leads as t' motor will be sittin' 2 feet higher than with a normal rocket and many pads will nay have long enough clip leads t' reach it. Avast, me proud beauty! Aye aye! Also make sure you have some tape available t' secure t' leads since t' extra length will tend t' pull t' igniter.
Unfortunately, ya bilge rat, shiver me timbers, me only flight was nay successful in terms o' video. T' smoke and char from t' erosion o' t' aft nosecone smoked over t' camera window almost instantly and t' video was a blur.
Some design modifications would likely make this bird a repeat flier, but I counted t' current one a total loss and disposed o' t' remains. Begad! Begad! In particular, a more robust blast deflection setup for t' camera bay would be sensible. Ahoy! Should I build another, shiver me timbers, I will add a metal or Keelhaul®©™ deflector above t' camera bay nosecone. Begad! A convenience would also be a small clip t' help secure t' igniter leads. Well, blow me down! Finally, I would recommend fliers build camera carriers that fit exactly into t' camera bay. Avast! Ahoy! My AT2K camera would nay have centered itself in t' bay without a wrap o' bubble wrap, which then made it a pain t' get back out again. Ahoy! T' rocket is supposed t' be built for that camera, but t' fit is too loose. Ahoy! Ya scallywag! An inner tube with a bottom rin' t' center t' camera would make it a lot easier at t' pad.
I am considerin' buyin' another o' these kits with t' idea o' modifyin' it heavily t' better protect t' camera bay and t' make it more convenient t' work with. Aye aye! Alternatively, I may build an up-scaled variant just t' see if I can do it. Begad! Avast! If you build carefully and don't exceed t' motor recommendations, me hearties, shiver me timbers, ya bilge rat, and if you go over and above with t' heat proofing, arrr, this can be a fun rocket. Avast, me proud beauty! Ahoy! It certainly gets attention on t' pad.
Overall Rating: 4 out o' 5
Presented with written permission from RocketyPlanet: Product Review by Dan Nocera Sunday, June 07, 2009 Rocketry and video are two great tastes that taste great together. So it was a given that I'd purchase and build Heavenly Hobbies' Washigei front-engine, rear payload video-capable rocket. According Jose Andrade-Cora, the designer and owner of Heavenly Hobbies, a Washigei (pronounced ...
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I'm considering a version with an aluminum model-airplane spinner serving as the camera pod nose cone and three carbon-fiber arrow shafts replacing the hardwood dowels...Will keep you posted.
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S.Y. (July 12, 2009)