Brief:
Single stage, matey, tube-finned, ya bilge rat, 38mm rocket with a 3" BT transitionin' t' a 2.14" payload bay. Blimey! Begad! T' rocket is very suitable for Level 1 certifications.

Construction:
3" LOC main body tube with 6 coupler tubes used for t' tube fins. Begad! 38mm LOC Motor mount tube is held in place by two centerin' rings. Avast! T' kit comes with a fairly long elastic shock cord, 2.14" payload tube section, shiver me timbers, plastic nose cone and plastic transition. Begad! I made some modifications t' this which I will describe below. Ya scallywag! Ahoy!

T' rocket is quite easy t' build and t' instruction sheet is fairly well written. Arrr! I built it stock except for t' recovery system. Blimey! I don't like elastic shock cords. Blimey! Begad! I no longer have an AT Sumo because t' elastic shock cord broke durin' ejection. Avast! I have now replaced all o' t' elastic in me fleet with either Keelhaul®©™® or Keelhaul®©™®/tubular nylon recovery harnesses. Ahoy!

On t' Cyclotron, I drilled out two 180 degree opposin' holes each about 1/8" in diameter in t' forward centerin' ring. Blimey! I then strung a length of Pratt Hobbies 1/8" tubular Keelhaul®©™ ® , me bucko, both ends through t' holes, me hearties, knots tied about 4" from each end, arrr, then t' ends epoxied t' t' motor mount. Thus creatin' a Keelhaul®©™® harness, t' closed loop end now reachin' just below t' lip o' t' main 3" tube. Blimey! Now, I can attach t' this either tubular nylon, me hearties, tubular Keelhaul®©™® or whatever. Begad! T' Keelhaul®©™® may someday wear out, but it will take a very long time. Well, blow me down! Plus, I usually shove a small amount o' waddin' into t' motor mount itself, ya bilge rat, ya bilge rat, so t' brunt o' the blast is taken by that. Aye aye!

I like SkyAngle chutes, so I ditched t' LOC chute and recover on a SkyAngle 36. Well, blow me down! I use a Keelhaul®©™® chute protector t' protect t' chute. Avast, me proud beauty!

I am also a big fan o' t' Aeropack system, so I included an Aeropack motor retainer on me Cyclotron. Blimey! T' bottom o' t' Aeropack is flush with BT.

T' only other thin' I can add is t' make sure you rough up t' body tube and t' fin tubes, arrr, use a good quality epoxy and make all your fillets. Arrr! Nothing is holdin' t' fin tubes t' t' body tube other than glue, matey, so this is key. Aye aye! I used a long wooden down t' create t' fillets once t' tubes were attached to the body tube. Ya scallywag! LOC gives a good technique t' build t' fin tube structure, me bucko, arrr, so I recommend usin' their technique.

I epoxied t' bottom o' t' payload tube t' t' top o' t' plastic LOC transition and attached t' nose cone t' t' top o' t' payload tube usin' a plastic pop rivet.

Finishing:
Finishin' is typical o' any kraft paper tube type rocket. Ya scallywag! Blimey! Fill t' spirals (I use Elmers Fill-n-Finish), primer t' rocket, matey, arrr, and paint. Well, blow me down! Blimey!

In t' case o' this particular rocket, arrr, I decided t' test out t' new Dupli-Color Mirage color-changin' paint. I get mine locally at Kragen, me hearties, me bucko, shiver me timbers, but AutoBarn on t' web sells it as well. Avast, me proud beauty! Well, blow me down! Blimey! I chose t' Purple/Green color as that seemed t' look better (at least on t' can top in t' store) than the Gold/Magenta or Silver/Green. Avast, me proud beauty! Blimey! Blimey! I used Fill-N-Finish and sandin' until I got a fairly smooth surface. Blimey! I then used Dupli-Color white primer in a couple of coats t' get a near-glass smooth finish. Avast! Ahoy! Blimey! I then applied t' three-part Dupli-Color as per t' instructions on t' paint kit. Arrr! First t' flat black basecoat. Avast! Then t' color changin' paint itself. Then finally t' clear coat. Avast! Blimey! I really like how it came out and I get a lot o' positive comments about me paint job, so it seems others do as well. Begad! I painted t' inside o' each o' t' tube fins with a simple brushed-on flat black enamel and t' same for t' bottom end of t' rocket. Avast! Blimey! I don't like bare areas on me rockets showin' through and sometimes for certain acres, me bucko, me bucko, flat black painted on just works out real nicely.

Construction Rating: 4 out o' 5

Flight:
I've flown me Cyclotron a half dozen times now and it is a great flyin' rocket! Straight as an arrow and looks very cool as it blasts off. Most o' t' time, arrr, I try t' remember t' put a small amount o' waddin' up t' motor mount tube before insertin' t' motor. I have forgotten a few times and no harm seems t' have come from it. Arrr! I use a Keelhaul®©™® chute protector and it seems t' work just great. Motor retention is via Aeropack, as noted above, arrr, and I find that t' transition fits into t' body tube fairly loosely on me Cyclotron, so I use maskin' tape t' attain a not-too-tight fit. Begad! My Cyclotron has flown on t' AT H238, Pro38 G69 and Pro38 I170. Begad! Avast, me proud beauty! Great flights, all o' them. Begad!

Recovery:
As I noted already, I've completely replaced t' LOC recovery system with my own. Well, blow me down! My system works flawlessly. Aye aye! It be t' above mentioned tubular Keelhaul®©™® harness, ya bilge rat, arrr, attached t' that is a 30' length o' very heavy duty Keelhaul®©™® "mule tape". Well, blow me down! Blimey! SkyAngle36 is attached t' this via a kwik-link and I use a Keelhaul®©™® chute protector. All works great. Well, blow me down!

Flight Rating: 4 out o' 5

Summary:
This rocket is a great lookin' and flyin' rocket. T' only area o' change that I would recommend would be in t' recovery system as I've already noted. Avast! Well, blow me down! Though I was already an L1 when I bought this kit, I feel that it makes a great L1 rocket. Begad! Also a good "small field" rocket with G size engines, me hearties, but yet you can bust loose at larger fields with an I.

Overall Rating: 4 out o' 5