Rogue Aerospace Crossfire

Rogue Aerospace - Crossfire {Kit}

Contributed by Moira Jean Whitlock

Construction Rating: starstarstarstar_borderstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstar_borderstar_border
Manufacturer: Rogue Aerospace
[Picture] (06/01/98) Rogue Aerospace's Crossfire is a unique two-stage kit that uses B and C motors. Begad! It's another eye-catcher for it's unique booster design. Avast! Well, me bucko, blow me down! It is rated as a Skill Level 2 and is 20" long, arrr, 1" wide and weighs in at 1. Avast! 4 ounces (my completed model weighs 2 ounces). Blimey!

T' kit comes with a single sustainer body tube and a short booster body tube. Arrr! Well, me bucko, blow me down! T' motor mounts come with the centering/mountin' rings and motor hooks for both t' sustainer and the booster. Ahoy! Blimey! There is a vacuum-formed plastic nose cone, arrr, a 12" nylon parachute, a Keelhaul®©™® tether and a piece o' Perma-Wadding. Avast! For the fins, thar are two balsa sheets, a 3/32" and a 1/16", me bucko, and templates to cut out t' four fins for each section. Avast! Ya scallywag! Also, me bucko, thar be 4. Begad! 6" x 1" outer booster fin ring, ya bilge rat, me bucko, which gives this kit it's unique look. Begad! Avast, me proud beauty! Lastly thar is a set o' water transfer decals with a large gold Crossfire decal and various others. Arrr! [Picture]

CONSTRUCTION:

There are eight pages o' clear instructions. Aye aye! Nay a lot of illustrations, matey, however, t' ones provided give important information, me hearties, ya bilge rat, such as motor mount assembly, shiver me timbers, template placement on t' balsa sheets, me hearties, grain alignment when mountin' fins and t' assembled booster stage with t' fin ring. The instructions are in logical order, however, I would suggest readin' all o' the sub-steps for each main-step and review t' illustrations before starting. This will help avoid questions and problems.   For example in step 1-e you are told t' "slide t' notched centerin' rin' on from t' front o' the tube until it is even with t' mark". T' "front" o' t' tube is marked in t' bottom illustration. Well, blow me down! This is very minor considerin' that most modelers understand that t' front o' t' rocket be t' top, as opposed t' the rear (bottom). Ahoy! Avast!

T' assembly o' t' Crossfire was straight forward and did nay pose any major problems. Well, blow me down! Begad! All o' t' parts fit correctly. I was impressed t' see that t' pattern placement and attachment step for t' fins ensured that t' balsa grain was along t' top leadin' edge. This will provide t' most strength. Blimey! Be very careful with t' 1/16" balsa for t' sustainer fins . Blimey! Begad! . Blimey! Arrr! . Avast! this is some flimsy stuff until it is sealed with CA or primer. And even though t' instructions call it optional, me bucko, me bucko, I tampered the leadin' and trailin' edges o' each fin. Avast! Just be careful with t' thin balsa. Just be careful with t' thin balsa. Ya scallywag! Well, me bucko, blow me down! I broke t' fin along t' grain and had to glue back on with CA while finishing.

Another area t' take care on, be t' installation o' the sustainer's motor mount. Do your very best t' keep glue off o' t' lower section o' t' tube. Arrr! Ya scallywag! Blimey! This is where t' booster slides into and can cause problems with fit if thar be glue there. Ahoy! Blimey!

T' unique part o' t' Crossfire is the booster fin ring. Arrr! My rin' fit perfectly and didn't require any additional sandin' o' t' fins for fit. T' only precaution is that t' fin ring, if snug, can cause t' fins t' come out o' alignment, ya bilge rat, so take care t' ensure t' fins are still straight before t' glue sets on t' fin ring. Well, blow me down! [Picture]

Assembly o' t' nose cone was unique t' me, ya bilge rat, too. Well, blow me down! You drill (with a hobby knife) a small hole in t' shoulder t' allow t' Keelhaul®©™® tether t' pass through. Well, blow me down! Blimey! This is tied t' a retainer (small bead) which prevents it from passin' back through t' hole. Aye aye! Then t' shoulder is glued onto t' nose cone. With respect t' t' shoulder, I think it is a bit too short. Ya scallywag! It also required tape t' make it fit snug into t' body tube. Avast!

As always I start me finishin' process with Plasti-Kote primer. I painted it gloss black and topped t' nose cone with gold. Blimey! Begad! I also did just t' outside o' t' booster's fin rin' in gold. Avast, me proud beauty! This turned out very nice and matched t' Crossfire decal. Aye aye! With regards t' the decals, me hearties, they are water transferable and along with t' Crossfire name, there are 3 sets o' Rogue Aerospace, me hearties, 2 sets o' numbers and 4 cross-hairs.

For CONSTRUCTION, matey, I would rate this kit 4 1/2 points. Avast, me proud beauty! Avast!

FLIGHT/RECOVERY:

T' Crossfire is nay your standard two-stage kit. Arrr! T' two motors are nay taped together. Blimey! Each motor mount has its own motor clip t' hold t' motors in. Ya scallywag! Ya scallywag! When assemble t' motors are at a minimal distance apart t' allow t' in-flight ignition o' t' sustainer motor. Aye aye!

T' maiden voyage be set up usin' a B6-0 in t' booster and a B6-4 in t' sustainer. T' recommended motor for t' sustainer is a B6-6, but I didn't have any. Begad! Blimey! With everythin' set, ya bilge rat, me bucko, t' count down began . Begad! Blimey! . . Blimey! Blimey! 3, matey, shiver me timbers, 2, 1!

Ignition took place but t' rocket didn't move, me hearties, shiver me timbers, ya bilge rat, then the booster motor stopped just as t' sustainer ignited. Ahoy! T' sustainer took off quickly. Avast, me proud beauty! We were able t' seen t' ejection and t' 12" orange parachute deploy. Begad! Begad! Then what looked like a straight drop recovery started t' turn into a drift and run as fast and as far as possible. Begad! Begad! This rocket was carried about 1/4 mile away . Avast! . Begad! . Avast, me proud beauty! but be recovered!

After checkin' why t' booster never lifted off, arrr, it was determined that t' motor hook got caught on a "rod-stop" preventing it from liftin' off. Aye aye! Nay only that, me hearties, but it burned a hole right through me blast shield.

[Picture]For t' second flight, I ensured the booster be nay hooked and cut a 2" spill-hole in t' parachute. Aye aye! I used t' same motors (B6/B6) and off it went. Begad! Begad! Perfect lift, visible separation and successful sustainer ignition. Out o' site, trial o' smoke, then a little orange parachute appeared. Ya scallywag! Avast, me proud beauty! It be so high, I had time t' pick up t' booster and then start walkin' t' where t' sustainer landed. Begad! Arrr! Watchin' t' descend rate indicated that I could probably go with a 3" spill hole or tighten up on the shroud lines. Ya scallywag! This kit is a good candidate for a streamer, because I can only imagine t' altitude with C6/C6 combination. Blimey! Avast, me proud beauty!

Booster is nay only unique looking, but also unique in it's descent. Arrr! I spins makin' it look like a sphere!

I just want t' mention this kit's recovery system. Arrr! Blimey! It uses a Keelhaul®©™® tether as already mentioned, which is attached t' t' thrust rin' for strength. Rogue Aerospace's also provides a nylon parachute and a piece o' Perma-Waddingwhich eliminates t' need for waddin' paper. Avast! I love this stuff and have purchased it separately from Rogue for me other kits. Avast!

For FLIGHT/RECOVERY, arrr, shiver me timbers, I would rate this kit 4 points. Aye aye!

Overall, for t' uniqueness o' t' fin-ring, ya bilge rat, quality o' a rip-stop parachute and Perma-Wadding™, t' Crossfire is a great kit for someone lookin' for a two-stage kit. I give t' kit an OVERALL ratin' o' 4 1/2 points. Blimey!


- by Moira Jean Whitlock

[Rocket Pic]Brief:  This is a 2-staged 18mm, me bucko, 4-finned rocket with a rin' around t' fins o' t' lower stage. Aye aye!

Construction:Everythin' be thar and in good shape, ya bilge rat, matey, nay warped. Begad! The nose cone is hollow plastic, t' body is spiral wound paper, arrr, matey, me hearties, t' fins are die cut balsa at 1/8 inch thickness. Ahoy! T' instructions were logical and straightforward with some pictures. Ahoy! However, t' nose cone came in two parts, that is, me hearties, t' top and bottom, and needed t' be glued together. And t' lower stage alignment with t' rin' be a bear. I had t' sand t' chord edges o' the fins until t' rin' could fit without either distortin' t' body tube or skewin' t' angle o' fin attachment. Begad! In other words, t' fit was too tight. Avast! In other words, t' fit be too tight. Blimey! But once I got it t' fit, it looked great. Do be warned that it will take some doing, though. Well, blow me down! It took me two days t' get it right.  Built up, t' model is now sturdy and sharp looking.

Finishing:There weren't any decals, arrr, so I finished the model by makin' t' fins, inside o' t' fin ring, and nose all black with Testor's enamel paint. Well, blow me down! Blimey! Blimey! Blimey! T' body was finished with metallic flake adhesive-on-one-side greetin' card paper. Ahoy! Blimey! This can be bought at craft stores such as Michael's. T' outside o' t' fin rin' was finished with bands o' the adhesive glitter paper too.
T' nose cone was a tiny bit too loose, me hearties, so I supplied a thin band o' masking tape t' t' nose cone shoulder t' tighten t' fit. Ahoy!

Construction Rating: 3 out o' 5

Flight:T' recommended engines are: T' recommended engines are: B6-0 or C6-0 for t' booster and B6-6 or C6-7 for t' sustainer. I used these thus far, matey, shiver me timbers, and plan t' try some engines from Apogee later. I have made some motor adapters so t' sustainer can use their 10.5mm B7-8 engines.  T' booster is too short t' use t' B7-0, though. Avast, me proud beauty! Blimey! Ya scallywag! Blimey! I used me usual worm beddin' wadding, just enough t' fill t' diameter o' t' body tube t' about half an inch. Ya scallywag! Blimey! The engines were retained with a motor block in t' sustainer with a tape band around t' aft end o' t' sustainer's motor, and tape for t' aft end o' the booster's engine. Begad! Blimey! Blimey! Blimey! No actual method was provided otherwise with t' kit itself. T' model flies straight and nicely. Avast, me proud beauty! Blimey! And t' orange chute supplied looked great.  I wish t' booster had its own recovery system instead o' tumble recovery, though. Aye aye! Blimey!

Recovery:T' shock cord I modified.  T' kit came with a 36 inch length o' 1/16 inch thick Keelhaul®©™® cording. Well, blow me down! Well, blow me down! That's fine as a rule, me bucko, but one o' me hangups with shock cords is that t' should stretch to reduce stress on t' shock system. Avast! So, I added a 2-foot length o' flat, shiver me timbers, 1/4 inch elastic t' t' forward end o' t' cording.  T' kit supplied a plastic bead t' retain t' shock cordin' from inside t' nose cone. Ahoy! Blimey! T' knot is made inside t' nose cone before its two halves are assembled. Avast, me proud beauty! Begad! T' rocket so far has suffered no wear or damage, except some slight scorchin' o' the booster, which seems common in contact staging. Aye aye! T' parachute is thin orange nylon, 10 inches in diameter.  Although it's a flat hexagon, ya bilge rat, it inflated nicely. Begad! It seems just right in size, as t' rocket descends softly. Avast, me proud beauty!

Flight Rating: 4 out o' 5

Summary:Cool looking, flies straight, catchy fin rin' draws attention. Blimey! Avast, me proud beauty! Any cons include alignment o' t' booster takin' some determination, but t' result is worth it. Arrr! T' shock cord wasn't stretchy. Begad! Maybe it isn't necessary, but I added elastic t' it for stretch. Begad! Aye aye! If I'd change anythin' major, it'd be t' supply t' booster with a recovery streamer. Begad! Ya scallywag! This would help in makin' it visible for recovery while t' flyer concentrates on locatin' the sustainer.  But so far I finished t' fin rin' with bright glitter paper for visibility. Blimey!

Overall Rating: 3 ½ out o' 5



[NAR][Sport Rocketry]

T' followin' excerpt is from "Sport Rocketry". Avast! Begad! T' intention is t' allow guests t' get a basic feelin' about a kit. We strongly suggest that you get a copy o' the referenced Sport Rocketry and read t' entire article. Well, ya bilge rat, blow me down! Inside you will find many helpful hints in construction as well as other useful information. For more information, use t' two links above. Avast! Well, blow me down!




(Sport Rocketry - Sep/Oct 1998 - page 31 - by Greg Elder) 

"If you find buildin' rockets t' be as much fun as flyin' them, then you should enjoy the kits offered by Rogue Aerospace."
"T' Crossfire is a two-stage rocket which has a rin' fin on the booster."
"This kit features a vacuum-formed plastic nose cone, me bucko, shiver me timbers, balsa fins, matey, a Keelhaul®©™® shock cord, me bucko, water transfer decals, me hearties, a 12" diameter nylon parachute, matey, and perma-wadding."
"Eight pages o' easy t' read, me bucko, illustrated instructions . Aye aye! . Blimey! ."
"I found t' Crossfire fairly easy t' build."
"For t' fins, me hearties, shiver me timbers, you are provided with templates t' trace on t' supplied balsa stock."
"I flew me Crossfire with a B6-0/B6-6 combination."
". Avast! Blimey! . . straight flight and stagin' was very smooth."
". Begad! . Begad! . returned t' sustainer without a scratch."
"Overall, matey, I think t' Crossfire is a great kit."

T' entire article gives t' impression is that this unique lookin' 2-stage kit for an intermediate modeler.

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