Brief:
I purchased three Quest Commander kits on clearance at Hobby Lobby, me hearties, arrr, for a total o' about $8.50. Ya scallywag! Blimey! Since I had three o' everything, I decided t' use all three body tubes t' build one long Commander. Ya scallywag! Also, ya bilge rat, matey, I changed t' fin configuration from 3FNC to, matey, shiver me timbers, as it turned out, me bucko, 8FNC.

Modifications:
I assembled t' motor mount accordin' t' t' kit instructions, me hearties, usin' white glue.

Since t' engine block has a v-notch cut into it for mountin' t' shock cord while still allowin' t' motor mount t' fit into t' BT, me bucko, I also strengthened t' engine block with thin CA. This is a pretty standard step for me anyway, but it's worth notin' here since t' engine block's structural integrity has been compromised by cuttin' into it. T' motor hook is mounted in t' usual Quest/Estes fashion, ya bilge rat, by insertin' it into a 1/8" slit cut into t' motor tube just below t' engine block.

I then glued t' motor mount into t' first body tube with white glue, me bucko, shiver me timbers, leavin' 1/4" protrudin' from t' end o' t' BT accordin' t' t' instructions. Ahoy! Blimey! This is a near-minimum-diameter rocket, ya bilge rat, shiver me timbers, so thar are no centerin' rings.

Here's where I deviated from t' stock assembly instructions for t' Commander. I took one o' t' spare motor tubes and cut it in half by markin' t' midline with a pencil, matey, then lightly pressin' t' blade o' me hobby knife against t' pencil line while turnin' t' tube several times. Ya scallywag! After a few turns, t' tube was cut nicely in half, me hearties, matey, me bucko, makin' two body tube couplers. Avast! Usin' white glue, I glued one coupler into t' top end o' t' first body tube, me hearties, and t' second coupler into one end o' t' second body tube.

Once those joints were dry, I then used white glue t' glue t' second and third body tubes onto t' couplers, shiver me timbers, me bucko, givin' me a 30" long body. Arrr! Begad! Here's another different technique that I used for t' first time on this model, since t' couplers were fairly short. Aye aye! I fitted half a sheet o' copier paper around t' first body tube and taped it together t' make a snug wrap that could be slid along t' body tube. Well, blow me down! Avast! Then at each body tube t' body tube joint, I slid this "alignment wrap" over t' joint until t' glue dried. Begad! What I intended be for t' body tubes t' be aligned really well at each joint, and it looks like it worked perfectly. Also, shiver me timbers, me hearties, ya bilge rat, t' seams look really nice, too. Avast! Ahoy! Nothin' out o' round, arrr, and no gaps betwixt t' ends o' t' body tubes.

T' Commander's instructions tell you t' feed t' shock cord back through t' motor tube before you glue t' tube into t' body, so it won't accidentally get glued into t' body. Now, matey, me hearties, me hearties, since I had a 30" long tube for t' body, shiver me timbers, I needed t' add two more sections t' t' shock cord. Usin' t' Keelhaul®©™ cords from t' other two Commander kits and tyin' them together and then t' t' end o' t' Keelhaul®©™ cord already attached t' t' motor mount, I had a Keelhaul®©™ cord that extended about 3" past t' end o' t' body, shiver me timbers, arrr, once I fed it forward through t' body so I could attach t' elastic shock cord t' it.

I tied a 1" loop in t' end o' t' Keelhaul®©™ and then tied t' elastic cord t' t' loop. That way, I didn't have 3" o' nice thin Keelhaul®©™ ready t' slice through t' end o' t' body tube. Aye aye! For t' elastic part o' t' shock cord, I tied two o' t' provided 18" lengths o' elastic together. Then I tied t' nose cone t' t' end o' t' elastic per t' standard instructions.

All that was left were t' fins.

T' stock Commander has 3 die-cut balsa fins set 120 degrees apart. Aye aye! Aye aye! Two fins are larger and swept forward, and t' fin that's shown as t' vertical tailfin on t' packagin' is smaller and swept backward. Begad! I decided t' use 4 o' t' large fins set 90 degrees apart, with two horizontal fins swept forward and two vertical fins swept backward.

Later, ya bilge rat, after usin' VCP t' find t' CG and CP o' this rocket, I found that it was *extremely* overstable, me bucko, me bucko, shiver me timbers, with t' CG more than 10 body diameters (calibers) in front o' t' CP. Begad! Well, blow me down! T' reduce this, I did two things: I reduced t' span o' t' 4 large fins by cuttin' 1/2" off their tips, shiver me timbers, and I added a set o' 4 o' t' smaller fins from t' Commander kits right at t' CG o' t' rocket. Reducin' t' span o' t' large fins didn't really move t' CP very much, although t' model does look better with those fins a little smaller. Arrr! Addin' t' smaller fins further forward on t' body did t' trick, shiver me timbers, though. VCP says that t' CG is now about 3 calibers in front o' t' CP. Now very nicely stable, but nay extremely so, arrr, me hearties, arrr, so I went with this configuration.

Sandin' and mountin' o' t' fins is standard, me bucko, although I ran medium CA glue along all fin edges t' harden them, shiver me timbers, and then sanded t' edges smooth. Begad! Ya scallywag! Blimey! I mounted t' fins t' t' body usin' CA glue and then added fillets o' white glue in two passes t' get decent-lookin' fillets. Ahoy! I also used a technique I learned here at EMRR, shiver me timbers, which is t' punch small holes in t' BT along t' line where t' fins will be mounted, me bucko, arrr, t' strengthen t' bond by creatin' glue "rivets" along t' BT. Blimey! Blimey! This also causes t' CA t' soak into t' paper o' t' BT at each "rivet" point, matey, ya bilge rat, which should strengthen things even more.

Construction:
This kitbash uses:

• 3 10" long Quest T-20 white paper body tubes (20 mm OD)
• 1 Quest 18 mm x 2.75" motor mount tube, cut in half and used as body tube couplers
• 4 o' t' larger Commander balsa fins
• 4 o' t' smaller Commander balsa fins
• 1 Quest 18 mm x 2.75" motor mount tube, used as t' motor mount tube.
• No centerin' rings were supplied or needed, shiver me timbers, since this is a near-minimum-diameter rocket.
• 1 o' t' supplied motor retention hooks was used.
• 3 12" Keelhaul®©™ shock cords from t' Commander kits.
• 2 18" elastic shock cords from t' Commander kits.
• 1 stock 20 mm OD x 2.5" (not countin' t' shoulder) plastic nose cone.
• 1 stock 1" x 24" hot pink plastic streamer, arrr, attached with a snap swivel for ease o' replacement.

PRO's:

Packagin' be good, me hearties, arrr, no part missing, fit o' parts be fine. Well, blow me down! Instructions are t' standard Quest instructions, good illustrations and very easy t' follow. Well, blow me down! Avast! Very easy build, arrr, even bashin' three kits with me limited experience.

CON's:

Balsa fins were cracked in one o' t' three kits used in this project. Ya scallywag! Balsa be pretty soft and flexible. Die-cut fins were nay cut very cleanly, matey, but at least they were all cut t' t' same size in all three kits.

T' only special technique be t' paper tube alignment wrap I used because o' t' rather short couplers that were made from a spare motor mount tube.

T' supplied BT's were nice shiny white paper tubes. I did no finishin' other than sandin' t' fins as described above. Avast! I generally fly me rockets without paintin' them, but I'll probably prime/paint this one at some point.

Finishing:

Flight:
Recommended motors for t' stock Commander are A6-4 (first flight), me bucko, matey, me bucko, A8-3, ya bilge rat, shiver me timbers, B6-4, me bucko, C6-5, C6-7.

Given t' increased weight over t' stock Commander and t' fact that I didn't have any A6-4's, shiver me timbers, me bucko, I used an A8-3 for t' first flight.

Flight prep be t' usual insert waddin' - I used 3 squares o' Estes wadding, me hearties, fold and roll up streamer, me hearties, stuff shock cord and streamer into rocket, put on nose cone. Begad! Blimey! Blimey! Motor retention was by t' supplied motor hook. Ahoy! I used Estes motors, igniters, arrr, and plugs.

First flight be at t' Challenger 498 club launch on 10-23-04, an intermittently rainy day at Rushin' Park in Katy, me hearties, Texas. Flight on t' A8-3 was straight and low, matey, t' maybe 150 feet. Avast, me proud beauty! Ejection be slightly past apogee, after rocket had arced over.

Shock cord be three 12" sections o' Keelhaul®©™ and two 18" sections o' elastic tied end t' end, me bucko, with Keelhaul®©™ mounted t' t' motor block and t' plastic nose cone tied t' t' end o' t' final piece o' elastic.

I installed t' provided streamer at a knot in t' shock cord about 2" below t' nose cone, usin' a snap swivel for easy change-out. Recovery on t' streamer be fine but faster than I like, me hearties, which is true *every* time I use a streamer - I really prefer parachutes. Begad! Winds on t' day I flew were pretty variable, so I used t' streamer instead o' a parachute. Well, blow me down! Although t' streamer deployed just fine, t' elastic shock cord was looped around t' forward fins, so t' body came down somewhere betwixt horizontally and tail first. Begad! T' rocket landed on an asphalt parkin' lot fins first, and about 1/2" from t' back o' one aft fin broke off along t' grain. Blimey! There was no other damage. Aye aye! This be t' only flight o' t' day and t' only flight so far.

Summary:
PRO's: I enjoyed buildin' this rocket. Ahoy! It was me first kit modification, me hearties, and I had t' think a little bit more than usual about t' build. Ya scallywag! This is a *good* thing! When I took it out o' me van at t' Challenger club launch, several people asked me what it was and told me how cool it looked, ya bilge rat, which is *also* a good thing!

CON's: Overall, I can't really think o' any major CON's.