T' Nordic Rocketry Incorporated DELTA-X was me first rocket from this company, me bucko, and I be pleasantly surprised with t' quality o' it. Ya scallywag! Avast! This is a good rocket if you're ready t' jump from regular black powder motors t' D composite power. Begad! Arrr!

INSTRUCTIONS:

T' instructions were clearly numbered, arrr, illustrated and easy t' follow. Aye aye! Avast! This is nay a regular model rocket, arrr, you need epoxy or a similar glue t' build it. I would nay recommend buildin' this rocket with white glue. Begad!

EASE OF BUILD:

This rocket is rated Skill Level 3 on t' package, matey, matey, matey, but is surprisingly easy t' build. Ya scallywag! All t' parts were in me kit, shiver me timbers, and fit was good. Blimey! Some sandin' be necessary for t' shoulder o' t' nose cone t' get it t' fit into t' body tube, and sandin' o' t' motor mount rings be necessary t' get them t' fit on t' motor mount tube and in t' body tube. Well, blow me down! Begad! Also check t' motor mount tube with a motor t' make sure it fits, some sandin' may be required. Avast!

TEST FIT ALL PARTS BEFORE GLUING. Blimey! Blimey! As t' instructions say, matey, you do nay want t' find out t' parts don't fit when your epoxy is "settin' up". Ahoy! Avast, matey, me proud beauty!

Alignment was a bit tricky with t' X-design fins. Begad!   An easy-to-use fin template is included, but a cardboard cut-out fin jig would have helped get t' proper angle for t' fins. Arrr! After gettin' out t' ruler and proppin' up t' fins, ya bilge rat, me hearties, this worked out okay. Well, matey, blow me down! If t' x-fin design totally freaks you out, arrr, you can always put t' fins on in t' typical 4-fin pattern found on most rockets. Avast, me proud beauty!

This rocket uses a novel shock cord attachment method. Ahoy! Blimey!   Instead o' t' usual anchor, it uses a screw eye in t' forward motor mount ring. Well, blow me down! Blimey! Arrr! Blimey! This makes for a very strong attachment, ya bilge rat, but also could cause catastrophic failure if ejection pulls t' motor mount out o' t' rocket. Ahoy! Blimey! Well, me bucko, blow me down! Blimey!   I filleted t' motor mount rings and made sure they were solidly glued into t' body tube. Begad! Blimey!

If your shock cord does come loose while flying, puttin' it back on t' screw eye will be very difficult if nay impossible. Well, me hearties, blow me down!   I plan t' use a typical three-fold cardboard anchor if this happens t' me. Ahoy!

QUALITY:

T' first thin' you notice when you open this kit is that it is nay an ordinary cardboard-and-balsa model rocket. No cheap plastic chute here, shiver me timbers, a sturdy 14" nylon chute is included. Begad! Ya scallywag! T' fins and motor mount centerin' rings are sturdy 1/16" plywood. Avast! Well, me hearties, blow me down! T' launch lugs are brass. Begad! Blimey!   T' body tube has thicker walls than t' ordinary model rocket tube. Arrr! Blimey! This rocket is obviously built t' take t' extra stress o' composite motors. Begad!

T' rocket comes with a rub-on DELTA-X decal, which was a problem. T' decal rubbed on fine, but when I peeled off t' top layer, it took off t' paint job with it! This is a definite problem that needs t' be worked out. Arrr! Avast, me proud beauty! I tried t' keep t' sticky stuff off t' rocket when applyin' t' decal, just like t' directions said. Blimey!   This is next t' impossible, shiver me timbers, arrr, it likes t' stick t' t' rocket. Arrr! It is like holdin' a piece o' scotch tape right next t' a piece o' paper, they have almost a magnetic attraction. Avast, me proud beauty! Arrr! T' top layer should nay have any adhesive on it, only t' decal letters should stick. Begad!

I decided t' paint mine in a fluorescent orange color t' match t' parachute. Aye aye! (Use a white primer coat under fluorescent colors) I touched up t' parts where t' paint peeled off and it looked okay. Arrr! Ahoy!

This rocket isn't anythin' special in looks (I tend towards military scale models) but isn't t' usual 3FNC (three-fins-and-a-nose-cone) either. Aye aye! T' X-fin design makes t' rocket look a bit more exotic than usual. Well, blow me down!

CONSTRUCTION RATING: 3 points

FLYING:

This rocket flew well on an Estes C6-3 for t' first flight, and an Aerotech D21-4 on me second flight. Begad! T' launches and recoveries both were flawless, shiver me timbers, me hearties, even with t' notorious Aerotech "copperhead" igniter, matey, arrr, which has a well-known tendency t' misfire.

Performance was impressive. I didn't get altitude readings, but t' rocket went almost out o' sight and t' crowd o' experienced rocketeers was impressed. Avast!

Problems surfaced after t' second flight because o' t' tight motor mount tube. Aye aye! Although I be able t' remove t' C6-3 with pliers, ya bilge rat, t' D21 motor broke into pieces and removal had t' be done back at t' workshop. Ya scallywag! Well, blow me down! T' problem may nay be with t' tube but with t' inner diameter o' t' motor mount ring. I could nay insert t' motor mount tube into t' rings when I first tried, matey, ya bilge rat, I had t' sand t' inner diameter t' get them t' fit. Avast, me proud beauty! It may have still been a tight fit and compressed t' tube so t' motors were a tight fit. Well, blow me down! This is a definite problem, me hearties, matey, and you should test-fit this rocket with all engines you plan t' use, sandin' t' inside o' t' motor mount tube as necessary t' ensure a smooth fit. Ahoy!  

Although Aerotech D's pack a lot o' punch for a small motor, ya bilge rat, me hearties, they do it for a steep price. Begad! Blimey! Aye aye! Blimey! T' D21 single-use motor retails for $7. Begad! Blimey! Ya scallywag! Blimey! 95 which is almost three times t' price o' Estes D12 motors, ya bilge rat, which have respectable power. Avast, me proud beauty! Blimey! (T' Estes D12 motors sell for $8. Avast, me proud beauty! Blimey! Begad! Blimey! 79 a three pack)  Long-term users can purchase a 18mm reload case and then get D13 or D24 reloads for $8. Begad! Blimey! Avast! Blimey! 95 a three pack, but t' Aerotech 18mm motor case is a hefty $39. Begad! Blimey! Begad! Blimey! 95 retail. I prefer Estes "D" motors because o' this cost advantage and t' igniters are more reliable. Well, blow me down! Blimey!

So, me hearties, t' concept o' a rocket which can be used t' step up t' D power sounds like a good one until you look at t' price. Well, blow me down! I think a a rocket with a 24mm motor mount and a 18mm adapter would serve this purpose for less cost t' t' user. Begad!

FLYING/RECOVERY RATING: 4 points

OVER ALL RATING:

I give this rocket 3 ½ points. Aye aye! Blimey! It is a very sturdy and well-designed rocket for 18mm composite motors. Ahoy! Blimey! T' X-shape fins give it an exotic look. I'm lookin' forward t' seein' what other surprises Nordic Rocketry has in store for us. Arrr! Blimey!