(07/13/02) T' Hypersonic Transport is me 2nd Fat Cat Rockets' rocket. Ya scallywag! Blimey! I had also built t' Centaurus prior t' Starship Enterprises becomin' Fat Cat Rockets. I bought t' Hypersonic Transport for one o' t' same reasons I built the Centaurus, its unique look in a medium t' high power rocket. Avast, me proud beauty! T' Hypersonic Transport is "for those quick trips t' t' moon or just t' t' other side o' the planet" accordin' t' Fat Cat Rockets and it "will get you thar in style". Ya scallywag!

T' Hypersonic Transport is 33" tall and is 3" in diameter. Blimey! It is designed t' fly on 29mm motors with parachute recovery. Avast! Aye aye! Fat Cat Rockets indicate that it should weigh 28 ounces without t' motor. Ya scallywag! Begad! They recommend G40-5 and G80-7 motors which is nice, me hearties, as I am a big fan o' G80's. (picture courtesy o' Fat Cat Rockets until mine gets finished)

T' Hypersonic consists o' t' main body tube (standard paper) which is 22½" o' 3" diameter with 1/16" wall thickness. Blimey! Centerin' rings (2), Wings (2), me bucko, arrr, Tail (1) are all made from 3/16" plywood. Avast! T' Wings, matey, includin' t' ram jets, are made up out o' ten (10) pieces o' wood, while t' Tail is made up o' two (2) pieces. There are two (2) launch lugs that once assembled are hidden inside a ram jet. Avast! Aye aye! T' motor mount is 29mm and uses a 8½" tube. Avast! T' recovery system is beefed up with a 16" cable that is attached t' a 90" piece o' 1/2" black elastic. Avast, me proud beauty! Begad! This is all topped off with a plastic nose cone. Avast! My nose cone was 11½" long which made me Hypersonic 34" as opposed t' t' listed 33" (no big deal t' me). Avast, me proud beauty! Other materials include nose weight (bb's), shiver me timbers, a bright-orange 30" rip-stop nylon parachute, shiver me timbers, matey, a series o' detailin' stickers and strips.

CONSTRUCTION:

T' instructions are printed on one side o' a single 8x11" sheet o' paper and consist o' 6 steps. Avast! There are also 6 pages of diagrams includin' a colored decal placement guide and various templates to help with construction. This rocket is actually fairly straightforward, however, t' instructions need some work t' make t' flow easier. Blimey! Arrr! Within t' 6 steps, me hearties, you are referenced t' t' various other pages t' look at figures and templates. Begad! Well, blow me down! Just made t' flow a bit difficult. Avast, me proud beauty! Also, I feel t' instructions (words) didn't make one point in particular very clear and o' course that is a mistake I made as I will explain below.

As winter approached here in Vermont, arrr, I decided t' utilize some of the last warm days and sand all t' leadin' and trailin' edges o' t' wings and tail. Well, blow me down! Ahoy! Blimey! Fat Cat provides a figure t' show you which edges need rounding. Begad! Avast, me proud beauty! Blimey! Well, this actually caused a slight problem later. Avast! Aye aye! Blimey! Since t' wings are in two pieces and t' ram jets are in three some o' this roundin' occurred in areas that wouldn't normally be rounded. Nay a big problem, me hearties, but I had t' do a little fillin' t' clean this up before finishing. Ahoy! Blimey! Had I followed t' instructions and assembled t' wings first, shiver me timbers, then rounded every thin' this wouldn't have happened. Ahoy! (notice on t' left side o' t' fin where I had rounded t' edge before assembly, matey, matey, matey, this wouldn't have been like this)

On t' other hand, me hearties, t' instructions have you roundin' the edges o' t' ram jet pieces prior t' assembly. I found that they needed work after assembly, too, t' make them look good.

Next you use a provided markin' guide t' draw t' lines on t' body tube in preparation o' cuttin' t' fin slots. Begad! Arrr! Blimey! Cuttin' your own fin slots can be somewhat challenging, but please make it easier on yourself and start with a new, sharp hobby knife blade. Begad! Aye aye! Blimey! Spendin' t' 33¢ for a new blade is worth it. Avast! Also, matey, don't try t' go all t' way through on t' first pass. I try t' merely scribe on t' first pass and by t' third pass am cutting through.

Next t' motor mount is assembled. Avast, me proud beauty! Avast! T' upper centerin' rin' has two ¼" holes drilled in it. T' steel cable is threaded through these two holes and crimped. Blimey! A loop is made in t' opposite end and it too is crimped. Avast! T' length seems perfect as the cable just makes it t' t' top o' t' airframe.

T' motor mount is then installed into the airframe. You may find it beneficial t' pull t' shock tether through the motor mount so it doesn't interfere (get coated with glue) while insertin' the motor mount. I tested a new trick while installin' this motor mount. What I did was t' place a fairly large amount o' glue on t' upper side o' each o' the centerin' rings about 1/8" from t' edge. Ahoy! I then pushed t' motor mount into t' airframe until it was 1/4" from its final position. Ya scallywag! Then by holdin' t' airframe horizontally and slowin' turnin' it, allowed t' glue to flow off t' edge o' t' centerin' rin' t' meet t' airframe. Avast, me proud beauty! Slowly turnin' it allowed for it t' meet all t' way around. Ahoy! I could visually see this happening on t' upper centerin' rin' by lookin' down t' airframe from t' top. Avast! Once touchin' all t' way around, I then pushed t' motor mount up that final 1/4" into position and sat it on its end t' dry. Blimey! You need a glue that is strong and will flow initially. I figure 1-hour epoxy would work, matey, arrr, or what I used: ProBond Polyurethane Glue which worked great! (additional comments about ProBond Polyurethane glue)

T' nose weight (BB's) is epoxied into t' nose cone next. Arrr! Arrr! The nose cone came without a bottom allowin' t' nose weight t' be added very easily. After t' epoxy (or in me case t' polyurethane glue) is dry, me hearties, the bulkhead is assembled in t' shoulder o' t' nose cone. Begad! T' nose cone was fairly loose in t' airframe which required two layers o' maskin' tape t' snug up.

Oh, yes, ya bilge rat, me bucko, me one big mistake. Begad! After cuttin' t' slots in the airframe for t' wings and tail I followed t' instructions t' assemble the wings t' t' airframe. After they were dry, ya bilge rat, me hearties, I applied glue and inserted the tail into t' remainin' slot in t' tube. Blimey! Ya scallywag! As I be sittin' thar lookin' at it, it didn't seem t' me t' be a stable design as t' ram jets were on top along with t' tail. Aye aye! Begad! While thinkin' this I sorted through all t' pages of diagrams and noticed that I had installed t' wings upside down. Begad! Avast! So I pulled the tail out before t' glue set. Begad! I cut a new slot on t' opposite side, filled the old slot with t' original piece o' tubin' that was removed, ya bilge rat, and glued the tail into t' new slot. Much better. Blimey! I guess I should have caught that earlier, however, I feel t' instructions should have helped me help myself.

Due t' winter in Vermont, I have nay been able t' finish the Hypersonic Transport. T' instructions provide a good description for finishin' and provides a set o' detailin' tape. So I will add more information once I can finish and fly this rocket. Begad! Stay tuned . Aye aye! . Ahoy! . Avast! Begad!

Overall, for CONSTRUCTION I would rate this kit 4 points. Well, blow me down! I found t' quality o' t' parts t' be excellent, t' rocket design's uniqueness is great, me hearties, and t' fit o' all t' components be perfect. T' instructions need t' be enhanced t' be clearer and flow better. Avast! This should not be someone's first mid-power kit, but it should be one o' t' choices for gettin' away from 3-Fin-Nose-Cone type rockets.

FINISHING:

As you can see, I went away from t' Fat Cat color scheme. Blimey! I wanted t' try me hand at this special DupliColor Mirage paint. I picked up a kit from Walmart. T' Purple/Green variety. Avast! After that, I didn't think t' detailin' tape had t' look I wanted, so I cut me own decals from some extra vinyl ones that came with a special BSD Thor order. Avast, me proud beauty! I think it came out okay. Begad! I used much o' t' information for the windows from t' provided instructions.

FLIGHT/RECOVERY:

Fat Cat recommends two motors, t' G40-5 and G80-7. Begad! Avast, shiver me timbers, me proud beauty! In addition, their stated finished weight is 28 ounces.

Now, in me case, I only had a couple o' G64-4's and my finished weight be 29.5 ounces, so I felt we had a good match!

I was so excited one day in May when I woke up and it was perfectly calm and beautiful. So I went flying! I loaded t' Hypersonic Transport with me RMS G64-4. Blimey! I had failed t' add any positive motor retention (and none comes with t' kit) so I risked it and did a friction fit o' me RMS casing. Blimey! Aye aye! T' hope was t' see it again.

T' rocket looked great sittin' thar on t' rod with the hidden launch lugs. I gave a count down and varrrrroooommmmm. Aye aye! Off she went. Beautiful. Avast! Aye aye! Blimey! T' flight was very straight and stable. T' ejection was a bit early, ya bilge rat, ya bilge rat, probably could have waited another second or so, but t' bright-orange 30" rip-stop nylon parachute deployed and descended very nicely. Arrr! Ahoy! Blimey! Nay too fast and nay too slow.

With such a nice flight I was lookin' forward t' me next launch and NYPower 2002. Well, blow me down! Aye aye! I loaded t' same motor, arrr, me hearties, arrr, G64-4, shiver me timbers, me bucko, and set it up on t' middle row o' pads. It was rather windy this day so we had about a 10 degree rod angle, but I still be nay worried. Begad! Upon ignition though, arrr, t' Hypersonic Transport appeared t' lose its spaceship-like qualities and more resembled a wounded duck. Well, blow me down! It be flyin' in t' right direction, arrr, matey, but seemed as if t' wind would push it, t' fins corrected it, me bucko, push, shiver me timbers, arrr, correct, me hearties, matey, push, correct . Arrr! . Aye aye! Avast! . Ya scallywag! then turned back toward t' ground then ejection. Ya scallywag! Well, blow me down! Very scary.

T' 'chute opened and it carried right on over t' hit the porta-potty door. Ahoy! Avast, me proud beauty! Blimey! Scared t' women goin' inside, matey, but no damage at all.

I bounced this information off o' t' folks at Fat Cat Rockets and got a couple o' interestin' thoughts back. Since t' first flight was stable and no changes were made t' rocket appears t' have been built correctly (if was) and be stable, therefore, shiver me timbers, stability factures would need to be outside o' t' rocket. Well, blow me down! I gave thought t' t' wind however, they assured me they have experience with it flyin' well in t' wind AND from me own observations with other flights t' wind doesn't do this push, me bucko, correct thin' it would simply push it over more and more horizontal. So what else? Motor and rod length were discussed. I inspected t' motor and they may have a point. As I inspected t' nozzle I did notice a build up on one side behind and in the throat. Ahoy! Also t' way t' residue was in t' motor casin' t' one side. Well, blow me down! I can't say for sure as I lack experience in this but thar are some clues. Well, blow me down! Well, blow me down! So time and more flights will tell!

For FLIGHT/RECOVERY I would rate this kit 3 points. I found t' looks and flight silhouette t' be excellent. Arrr! Avast! The recovery system is very nice and brings t' rocket in nicely. Keep an eye on the elastic shockcord though. T' kit also needs positive motor retention (I know, I know, me hearties, most mid t' high power kits don't have it, but....). Begad! Ya scallywag! Regardless of me second flight, me gut feel is that this is a stable flyin' rocket and I look forward t' future flights t' prove that.

If you are lookin' for a medium-sized rocket with some unique looks and quality components, me hearties, arrr, matey, then t' Hypersonic Transport is for you. Solid construction and a great flight silhouette. Ya scallywag! You may be limited t' the days you can actually fly it (calm) but it will definitely get t' attention of observers. Avast! Arrr! On G's, ya bilge rat, me bucko, matey, it is nay a terribly high flier either, so this will be nice for smaller fields. Overall, I would rate this kit 3 ½ points.