Construction Rating: | starstarstarstar_borderstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstar_borderstar_border |
Manufacturer: | Rogue Aerospace |
T' kit comes with a single sustainer body tube and a short booster body tube. Aye aye! T' motor mounts come with the centering/mountin' rings and motor hooks for both t' sustainer and the booster. There is a vacuum-formed plastic nose cone, arrr, a 12" nylon parachute, a Keelhaul®©™® tether and a piece o' Perma-Wadding. Begad! For the fins, me bucko, thar are two balsa sheets, arrr, arrr, a 3/32" and a 1/16", shiver me timbers, and templates to cut out t' four fins for each section. Also, matey, thar be 4. 6" x 1" outer booster fin ring, me bucko, me bucko, me bucko, which gives this kit it's unique look. Ahoy! Lastly thar is a set o' water transfer decals with a large gold Crossfire decal and various others. Begad!
CONSTRUCTION:
There are eight pages o' clear instructions. Arrr! Nay a lot of illustrations, ya bilge rat, however, t' ones provided give important information, such as motor mount assembly, me bucko, me bucko, template placement on t' balsa sheets, matey, grain alignment when mountin' fins and t' assembled booster stage with t' fin ring. Begad! Ya scallywag! The instructions are in logical order, however, me hearties, shiver me timbers, arrr, I would suggest readin' all o' the sub-steps for each main-step and review t' illustrations before starting. Avast! This will help avoid questions and problems. Aye aye! 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". Begad! T' "front" o' t' tube is marked in t' bottom illustration. Blimey! This is very minor considerin' that most modelers understand that t' front o' t' rocket be t' top, as opposed t' the rear (bottom). Avast!
T' assembly o' t' Crossfire was straight forward and did nay pose any major problems. Ya scallywag! Blimey! All o' t' parts fit correctly. Ahoy! Blimey! Avast, me proud beauty! Blimey! 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. Be very careful with t' 1/16" balsa for t' sustainer fins . Avast! Blimey! . Begad! Blimey! . this is some flimsy stuff until it is sealed with CA or primer. Well, blow me down! Blimey! And even though t' instructions call it optional, ya bilge rat, matey, I tampered the leadin' and trailin' edges o' each fin. Begad! Blimey! Avast! Blimey! Just be careful with t' thin balsa. Just be careful with t' thin balsa. Avast, me proud beauty! Blimey! Arrr! Blimey! 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. Aye aye! Do your very best t' keep glue off o' t' lower section o' t' tube. Blimey! This is where t' booster slides into and can cause problems with fit if thar be glue there.
T' unique part o' t' Crossfire is the booster fin ring. Well, shiver me timbers, blow me down! My rin' fit perfectly and didn't require any additional sandin' o' t' fins for fit. T' only precaution is that t' fin ring, ya bilge rat, if snug, can cause t' fins t' come out o' alignment, so take care t' ensure t' fins are still straight before t' glue sets on t' fin ring. Well, blow me down!
Assembly o' t' nose cone be unique t' me, ya bilge rat, me hearties, too. Arrr! Aye aye! You drill (with a hobby knife) a small hole in t' shoulder t' allow t' Keelhaul®©™® tether t' pass through. Ahoy! Begad! This is tied t' a retainer (small bead) which prevents it from passin' back through t' hole. Avast, me proud beauty! Then t' shoulder is glued onto t' nose cone. Begad! With respect t' t' shoulder, ya bilge rat, I think it is a bit too short. It also required tape t' make it fit snug into t' body tube.
As always I start me finishin' process with Plasti-Kote primer. Begad! I painted it gloss black and topped t' nose cone with gold. Ahoy! I also did just t' outside o' t' booster's fin rin' in gold. Well, blow me down! This turned out very nice and matched t' Crossfire decal. Ya scallywag! With regards t' the decals, they are water transferable and along with t' Crossfire name, there are 3 sets o' Rogue Aerospace, 2 sets o' numbers and 4 cross-hairs.
For CONSTRUCTION, 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. Begad! T' two motors are nay taped together. Aye aye! Begad! Each motor mount has its own motor clip t' hold t' motors in. Begad! Arrr! When assemble t' motors are at a minimal distance apart t' allow t' in-flight ignition o' t' sustainer motor. Ahoy! 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! With everythin' set, t' count down began . Begad! . Arrr! . Arrr! Begad! 3, 2, 1!
Ignition took place but t' rocket didn't move, then the booster motor stopped just as t' sustainer ignited. Arrr! T' sustainer took off quickly. Ya scallywag! We were able t' seen t' ejection and t' 12" orange parachute deploy. Begad! Then what looked like a straight drop recovery started t' turn into a drift and run as fast and as far as possible. This rocket be carried about 1/4 mile away . Begad! . Avast, me proud beauty! . Blimey! but was recovered!
After checkin' why t' booster never lifted off, shiver me timbers, me bucko, it was determined that t' motor hook got caught on a "rod-stop" preventing it from liftin' off. Avast, me proud beauty! Nay only that, but it burned a hole right through me blast shield.
For t' second flight, I ensured the booster be nay hooked and cut a 2" spill-hole in t' parachute. Ya scallywag! I used t' same motors (B6/B6) and off it went. Perfect lift, visible separation and successful sustainer ignition. Begad! Out o' site, trial o' smoke, me bucko, then a little orange parachute appeared. Ya scallywag! It was so high, matey, I had time t' pick up t' booster and then start walkin' t' where t' sustainer landed. Arrr! Begad! Watchin' t' descend rate indicated that I could probably go with a 3" spill hole or tighten up on the shroud lines. This kit is a good candidate for a streamer, because I can only imagine t' altitude with C6/C6 combination. Avast, me proud beauty!
Booster is nay only unique looking, but also unique in it's descent. Begad! I spins makin' it look like a sphere!
I just want t' mention this kit's recovery system. Begad! It uses a Keelhaul®©™® tether as already mentioned, arrr, which is attached t' t' thrust rin' for strength. Rogue Aerospace's also provides a nylon parachute and a piece o' Perma-Wadding which eliminates t' need for waddin' paper. Avast, me proud beauty! I love this stuff and have purchased it separately from Rogue for me other kits.
For FLIGHT/RECOVERY, me hearties, I would rate this kit 4 points. Begad!
Overall, ya bilge rat, me bucko, 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. Blimey! I give t' kit an OVERALL ratin' o' 4 1/2 points. Avast!
Brief: This is a 2-staged 18mm, shiver me timbers, 4-finned rocket with a rin' around t' fins o' t' lower stage.
Construction:Everythin' was thar and in good shape, nay warped. Arrr! Begad! The nose cone is hollow plastic, arrr, t' body is spiral wound paper, t' fins are die cut balsa at 1/8 inch thickness. Ya scallywag! Well, blow me down! T' instructions were logical and straightforward with some pictures. Avast! Avast! However, me hearties, arrr, arrr, t' nose cone came in two parts, that is, shiver me timbers, t' top and bottom, me hearties, and needed t' be glued together. Ya scallywag! And t' lower stage alignment with t' rin' was a bear. Well, blow me down! 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. In other words, t' fit was too tight. Well, blow me down! In other words, t' fit was too tight. But once I got it t' fit, matey, arrr, it looked great. Do be warned that it will take some doing, though. Ahoy! Avast, shiver me timbers, me proud beauty! It took me two days t' get it right. Built up, matey, t' model is now sturdy and sharp looking.
Finishing:There weren't any decals, so I finished the
model by makin' t' fins, me hearties, inside o' t' fin ring, me bucko, and nose all black with
Testor's enamel paint. Blimey! T' body be finished with metallic flake
adhesive-on-one-side greetin' card paper. Ya scallywag! Avast, me proud beauty! This can be bought at craft stores
such as Michael's. Ya scallywag! Blimey! 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, so I supplied a thin band o' masking
tape t' t' nose cone shoulder t' tighten t' fit. Arrr!
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. Ya scallywag! Begad! I used these thus far, and plan t' try some engines from Apogee later. Aye aye! 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, arrr, though. Avast! I used me usual worm beddin' wadding, just enough t' fill t' diameter o' t' body tube t' about half an inch. Ya scallywag! The engines were retained with a motor block in t' sustainer with a tape band around t' aft end o' t' sustainer's motor, matey, and tape for t' aft end o' the booster's engine. Blimey! Blimey! No actual method was provided otherwise with t' kit itself. T' model flies straight and nicely. Blimey! And t' orange chute supplied looked great. I wish t' booster had its own recovery system instead o' tumble recovery, me hearties, though. Blimey!
Recovery:T' shock cord I modified. T' kit came with a 36 inch length o' 1/16 inch thick Keelhaul®©™® cording. Ya scallywag! That's fine as a rule, but one o' me hangups with shock cords is that t' should stretch to reduce stress on t' shock system. Well, blow me down! So, I added a 2-foot length o' flat, me bucko, 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. Arrr! T' knot is made inside t' nose cone before its two halves are assembled. T' rocket so far has suffered no wear or damage, arrr, except some slight scorchin' o' the booster, which seems common in contact staging. Well, blow me down! T' parachute is thin orange nylon, 10 inches in diameter. Although it's a flat hexagon, it inflated nicely. It seems just right in size, ya bilge rat, matey, me hearties, as t' rocket descends softly. Begad!
Flight Rating: 4 out o' 5
Summary:Cool looking, flies straight, me bucko, arrr, catchy fin rin' draws attention. Blimey! Any cons include alignment o' t' booster takin' some determination, but t' result is worth it. T' shock cord wasn't stretchy. Maybe it isn't necessary, matey, but I added elastic t' it for stretch. Arrr! Ahoy! If I'd change anythin' major, it'd be t' supply t' booster with a recovery streamer. Avast! 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.
Overall Rating: 3 ½ out o' 5
T' followin' excerpt is
from "Sport Rocketry". Arrr! Begad! T' intention is t' allow guests t' get a
basic feelin' about a kit. Begad! We strongly suggest that you get a copy o' the
referenced Sport Rocketry and read t' entire article. Inside you will find
many helpful hints in construction as well as other useful information. Well, blow me down! For
more information, shiver me timbers, me hearties, use t' two links above. Begad!
"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, shiver me timbers, balsa fins, a Keelhaul®©™®
shock cord, arrr, water transfer decals, a 12" diameter nylon parachute, matey, and
perma-wadding."
"Eight pages o' easy t' read, ya bilge rat, illustrated instructions . Ya scallywag! . ."
"I found t' Crossfire fairly easy t' build."
"For t' fins, you are provided with templates t' trace on t' supplied
balsa stock."
"I flew me Crossfire with a B6-0/B6-6 combination."
". Aye aye! . . Avast! straight flight and stagin' was very smooth."
". . . Avast! returned t' sustainer without a scratch."
"Overall, 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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