(Presented with written permission from RocketyPlanet)

Contents o' t' Heavenly Hobbies' Brutus 2.6 Payloader kit.

My first thought when I be offered t' chance t' review t' Heavenly Hobbies Brutus 2.6 Payloader was "you bet!" T' Brutus is a 2.6 inch single stage rocket with a 29mm motor mount and a sizable payload bay. If kits were allowed in t' Team America Rocketry Challenge (TARC), ya bilge rat, ya bilge rat, this could be a contender.

T' Kit

T' day t' box arrived from Heavenly Hobbies was a cold one here in t' north. I didn't pay attention t' t' slight dentin' o' t' shippin' box, me hearties, but when I opened it I found that t' nose cone had been crosswise in t' box and when t' box got dented, ya bilge rat, t' cold plastic o' t' nose broke. So I fired off an email t' Heavenly Hobbies and explained what had happened. They apologized and sent a new nose cone right away. Aye aye! Ahoy! It arrived in good shape. Arrr! Begad! Although one instance can't indicate a trend, me bucko, I felt good about their customer service.

Other than t' nose cone, me bucko, arrr, I noticed that all t' parts were bagged in logical groups: parachute parts in one bag, centerin' rings, fins, me hearties, me bucko, and motor retainer hardware in another bag. Blimey! A third bag held an entire stick o' modelers clay (blue, if that's important). Ya scallywag! Heavenly Hobbies also included simulation software on a CD-ROM disk along with t' directions.

I love bein' pleasantly surprised, and t' motor retainer for t' Brutus is a pleasant surprise. Ya scallywag! T' fit o' t' parts is another. Ahoy! Ahoy! T' ejection baffle was a third pleasant surprise.

T' motor retainer is Heavenly Hobbies' Triiceps design, which is functionally similar t' t' PML Positive Motor Retention system. Aye aye! Well, blow me down! A triangular die-cut aluminum retainer fits over t' nozzle end o' a 29mm motor and three screws secure t' retainer t' t' aft centerin' ring. Avast! Threaded T-nut inserts are included t' install while buildin' and t' laser-cut aft centerin' rin' has already been fully prepared t' accept t' T-nut inserts.

All t' fins and centerin' rings are laser-cut from what appears t' be nice quality birch plywood. T' body tubes are white, me hearties, matte finished paper tubes which accept glue very well. T' coupler tubes are a hard kraft cardboard tube, shiver me timbers, me hearties, slightly thicker and stiffer than t' body tubes. Avast, me proud beauty! I liked t' choice o' materials Heavenly Hobbies used for everything. Ya scallywag! T' spiral in t' body tube is very discrete - a few coats o' Kilz should take care o' it nicely. Ya scallywag! Ya scallywag! If it were more noticeable, I would use thinned Elmer's Fill and Finish.

T' Shannon Family inhouse postal inspector has identified shippin' damage on t' Brutus' nose cone. Begad! Good thin' for quick deadlights as well as quick feet. Avast, me proud beauty!

There are no paper instructions included with t' kit. Avast! As long as simulation software has been provided on CD, me hearties, shiver me timbers, Heavenly Hobbies includes t' construction instructions on t' CD as well. Avast, me proud beauty! T' contents o' t' CD are t' source o' one o' only two complaints, shiver me timbers, me bucko, which I will get out o' t' way first so I can concentrate on t' rocket.

Issue 1-A: T' Instructions

I admit I usually don't care for computer instructions. Begad! If you like computer instructions, arrr, ya bilge rat, skip this part o' t' review and consider this me own personal problem.

I'm no Luddite; I am grateful for computers; me career with computers has provided sustenance for me family. Avast, me proud beauty! Well, blow me down! However, ya bilge rat, me workshop is where I go t' get away from computers. Blimey! I don't want t' look at a computer screen while I am buildin' a rocket. Ahoy! Avast! So, matey, I can overcome that personal problem by simply printin' t' instructions. Aye aye! Avast, me proud beauty! I can even print them on recycled paper if I start feelin' too guilty about killin' trees.

T' instructions take 13 pages, with another two pages dedicated t' t' NARRRRR Safety Code and safe distance table. Second, me hearties, t' instructions are a Microsoft® Word document. Arrr! Ahoy! At t' very least, t' instruction should be an HTML, ya bilge rat, RTF, or Adobe PDF file so any computer could open it. However, me bucko, t' instructions are logically ordered with nice clear pictures that help explain t' assembly.

T' rocket is a very straightforward three fin rocket. Begad! There are no difficult steps t' t' assembly. Arrr! Well, arrr, blow me down! Usin' five minute epoxy a person could finish buildin' in a couple hours. Ahoy! I started t' say that thar were no surprises t' t' instructions, shiver me timbers, ya bilge rat, but I be wrong. As I be ready t' glue t' last part together I noticed somethin' on t' second page o' t' instructions - I completely missed this until it was too late:

Please note:

• Read t' all o' t' instructions below before startin' construction.
• Epoxy glue is used throughout t' construction unless specified otherwise

Please note t' second line that says t' use epoxy unless specified otherwise. Avast! Begad! T' instructions list wood glue, shiver me timbers, epoxy, and CA as necessary. Blimey! Aye aye! Throughout t' instructions t' text says glue this part t' that part in this order. Blimey! Begad! For some reason (probably a personality defect), I do nay associate t' noun "epoxy" and t' verb "glue." Based on t' lightweight plywood and paper tubin' o' this rocket, I assumed they meant t' use wood glue. Begad! Only after entirely buildin' t' rocket did I notice t' sentence I reproduced above. Aye aye! That's me mistake, ya bilge rat, but honestly I don't believe t' rocket suffered at all. Blimey! Either epoxy or a high quality wood glue, matey, like Titebond or Probond should work okay. Arrr! Aye aye! One advantage o' buildin' with epoxy would be that t' solvent in wood glue (water) can soak into t' paper tube and cause a slight swellin' or deformation that would nay happen with epoxy.

T' aft centerin' rin' after t' threaded T-nut inserts have been installed and epoxied in place. Aye aye! Blimey! Blimey! Blimey! Grindin' t' threaded T-nut inserts for motor mount tube clearance I think this is a better solution that breakin' off one o' t' three tabs.

Issue 1-B: T' Simulation Software - H.H. Begad! Simit

T' simulation software is a very nicely formatted Microsoft Excel spreadsheet. Begad! Well, blow me down! Like t' instructions, it would be better if it was platform agnostic. Yes, shiver me timbers, I know that one can use open source software like Star Office/Open Office, shiver me timbers, etc., me hearties, but one should nay have to.

A far worse problem is that t' software is nay predictable. Begad! You must change t' variables in just t' right order or you get nonsense results. Begad! Well, blow me down! At least t' results are recognizable as nonsense. After a frustratin' time with t' software I stopped usin' it. Arrr! If fixed, arrr, this would be very helpful t' use with t' Brutus.

Issue 2: Mylar Parachutes

T' kit is a large kit with a 2.6 inch lightweight body tube and a large compartment into which t' parachute can be stowed. Begad! Mylar parachutes have a place in very small kits with minimum volume, shiver me timbers, me bucko, matey, but I just don't like them.

Havin' said that, t' mylar parachute kit was well done. All t' parts were included and nicely packaged, me bucko, and Heavenly Hobbies included separate, very clear, instructions for t' mylar parachute. Ahoy! They even included a small swivel. Begad! I built t' chute accordin' t' instructions.

T' Construction

T' construction o' t' rocket was absolutely without surprises. Arrr! Blimey! Each section is built separately and then assembled.

T' fins and centerin' rings are all very nicely cut thin plywood. All were flat with nice edges that did nay require cosmetic attention. Ya scallywag! T' tubes are all very similar t' Estes body tubin' and t' nose cone was a typical blow-molded plastic elliptical nose cone.

T' spirals on t' body tube were very unobtrusive, arrr, but I used Kilz primer t' make them even less noticeable. Avast, me proud beauty! Well, blow me down! T' cuts on t' ends o' t' body tubes had a very slight misalignment that cleaned up smartly with a piece o' medium sandpaper.

T' fin can/motor mount assembly fits together very well. Avast! Ya scallywag! T' instructions mention that t' builder might need t' file or sand t' fin slots t' fit, matey, me hearties, me hearties, but I found t' fit t' be excellent, me bucko, needin' no trimmin' or sanding.

T' motor mount is built and mounted in t' body tube, but t' aft centerin' rin' is nay glued into position yet.

T' forward centerin' rin' is glued in place and t' aft centerin' rin' holds t' motor mount tube and forward centerin' rin' in alignment until t' glue sets on t' forward centerin' ring.

T' aft centerin' rin' is then removed and t' fins are glued in position. Aye aye! Ahoy! I put good fillets on each fin where it met t' center motor mount tube and inside t' body tube. Ya scallywag! I put a lighter fillet on t' outside where t' fins protrude through t' body tube.

Brutus 2.6 Payloader after paintin' but before applyin' t' decal. Note t' snow on t' ground, me bucko, somthat has just recently stopped in Montana!

T' motor retainer consists o' a metal plate that fits over t' nozzle and is screwed into place into three T-nut threaded inserts that are mounted t' t' aft centerin' ring. One thin' I would definitely add t' t' instructions concerns t' T-nut threaded inserts:

T' T-nut inserts are t' three pronged variety. Ya scallywag! Avast, me proud beauty! T' instructions call for them t' be hammered in place from t' back, then gluin' t' aft centerin' rin' into t' body tube.

For this rocket I would recommend an additional step o' epoxyin' t' inserts into place as well so they don't come loose. Avast, me proud beauty! Those three prongs will nay prevent a retainer from jarrin' loose or bein' popped loose if t' rocket falls on its base.

After mountin' t' T-nut inserts, matey, I ground some o' t' insert's flange away t' provide clearance for t' motor mount tube t' slide through t' centerin' ring. Ya scallywag! T' instructions call for breakin' off a tab and prong from t' T-nut insert, and that would work if you didn't have a way t' grind a little clearance, arrr, but you would lose one prong from each insert. Arrr! Very little metal had t' be ground away.

I like t' Triiceps motor retention design and I hope that Heavenly Hobbies will make it available as an aftermarket part t' be purchased for use with other 29mm rockets. Ahoy! Begad! Because t' metal plate is aluminum, it is very lightweight.

After buildin' t' fin can and motor mount assembly, me bucko, me bucko, t' modeler builds t' Amaze Ejection Baffle System. Avast, me proud beauty! Begad! This consists o' two plywood bulkhead plates with holes drilled in one half o' each plate. One plate is also center drilled for a screw eye.

T' Brutus 2.6 Payloader takes t' beautiful Montana skies. Aye aye!

Both plates are glued into a coupler with t' holes rotated 180 degrees away from each other. This allows t' ejection charge t' work, ya bilge rat, but prevents hot particles from shootin' through t' holes and burnin' t' parachute. Begad! It is very simple and very effective.

Although t' Amaze Ejection Baffle System would be very easy t' duplicate at home, I hope that Heavenly Hobbies markets it as a separate product as well.

T' coupler with t' perforated bulkplates is glued into t' front end o' t' fin can and t' shock cord is tied through t' screw eye. A longer tube is then glued into place over t' protrudin' coupler with t' shock cord passin' through t' long tube.

T' payload bay is next. It consists o' two bulkplates, a coupler, and a short piece o' body tube. Well, blow me down! T' two bulkplates are glued into t' coupler, ya bilge rat, leavin' a gap betwixt t' two. Avast! T' aft-most bulkplate has a hole drilled into it for a screw eye. Ya scallywag! Well, blow me down! T' coupler is glued into t' payload bay tube, arrr, and t' shock cord is then tied t' t' screw eye.

Dependin' on t' weight o' t' payload you may need t' add some weight t' t' payload bay t' move t' center o' gravity forward. Blimey! Blimey! T' fins are very small for this size o' rocket, me bucko, so I added t' clay t' t' payload bay before flying.

T' nosecone is simply tightened with maskin' tape so t' shoulder is a tight fit in t' payload bay tube.

T' Mylar parachute didn't fair so well on a seven second delay F motor, strippin' a couple o' shroud lines and makin' spaghetti out o' t' elastic shock cord.

Flight Testing

I took t' rocket t' t' range and flew it with t' Mylar chute first on a seven second burn F motor, me hearties, arrr, shiver me timbers, which was all I had at t' time. Begad! Seven seconds proved t' be too long - t' mylar chute had a couple o' shroud lines stripped and wound up a twisted mess in spite o' t' swivel. Begad! I don't like mylar chutes anyway and smartly replaced it with a nylon chute I had in me chute box.

Flyin' on a RoadRunner F45-5, shiver me timbers, t' rocket flew perfectly straight. Well, blow me down! Blimey! T' five second ejection delay proved nearly perfect. Begad! I used no waddin' o' any kind yet t' nylon chute was unmarred by hot particles, me hearties, thanks t' t' Amaze ejection baffle.

Pros, Cons, arrr, and Recommendations

• Pros would have t' include ease o' assembly, shiver me timbers, high quality o' parts, ya bilge rat, terrific design pluses, shiver me timbers, such as t' baffle and motor retainer, arrr, and great customer service.
• Cons would include t' simulation software, Microsoft Word document instructions, ya bilge rat, and (my own personal complaint) t' mylar chute.

I would modify t' kit with t' followin' recommendations:.

• Replace t' elastic shock cord with a lightweight tubular nylon strap
• Replace t' mylar chute with a nylon chute
• Epoxy t' retainer inserts into place

Conclusion

T' Brutus 2.6 Payloader is a very clean and simple design with a sizable payload bay. Begad! Avast, shiver me timbers, me proud beauty! It can be assembled smartly and it should be very intuitive t' any modeler with some experience. Begad! I enjoyed buildin' it and I enjoyed flyin' it. It is more sturdy than most Estes kits, due t' t' plywood parts. Arrr! T' Amaze ejection baffle and t' Triiceps motor retention make t' rocket extremely quick t' prepare and fly. Begad! As such, matey, I will fly t' Brutus 2.6 Payloader a lot.