Photo Courtesy o' PML

Brief:
T' Tethys is a basic 3FNC kit, capable o' flyin' on G motors or bigger.

Construction:
T' Tethys came with a single length o' airframe tubin' (phenolic, arrr, shiver me timbers, per me request), arrr, 3 pre-cut G10 fins (the thickest fiberglass fins I've used t' date), matey, a 4:1 ogive plastic nose cone, a thick nylon strap, a length o' tubular nylon, shiver me timbers, arrr, piston kit, a 48" parachute, matey, ya bilge rat, two brass launch lugs, ya bilge rat, and t' 54mm Kwik-Switch motor mount system. Arrr! Blimey! All parts arrived in good condition, matey, although thar was a crack in t' airframe, me bucko, runnin' from a fin slot t' t' base o' t' tube- a very minor problem.

I used West System epoxy throughout construction, me bucko, and found t' kit went together very easily. Avast! Begad! I be a bit shocked t' discover t' Kwik-Switch system was just a few pieces o' threaded plastic! Nay havin' any experience above H motors, arrr, I was boggled, me bucko, matey, as me concern be whether these parts would hold up t' t' stresses that a really big motor would place on them. Aye aye! Aye aye! Well, arrr, I suppose PML knows what they're doing. Ahoy! Begad! Anyway, ya bilge rat, part fit was good overall, shiver me timbers, and thar really aren't any "gotcha's", if you follow t' instructions.

I built mine stock, me hearties, with one exception- I replaced t' lugs with 1/4" ones. Ahoy! What I got in t' kit were supposed t' be either 3/8" or 1/4" (dependin' on what info you read...), but were neither, when I measured t' ID.

Otherwise, everythin' else went together fine, matey, with nothin' more than t' usual bit o' sandin' t' get optimal fit. Arrr! No motor retention is provided with t' kit, so I had ordered t' PMR kit that PML offered for t' Kwik-Switch motor mounts. Sinkin' those threaded inserts was a pain, but I couldn't ever imagine them comin' back out, short o' destroyin' t' centerin' ring.

I did add one extra construction step- I had picked this kit t' use as me CAR level 2 rocket (Which is an I motor), me hearties, and had plans on usin' it for level 3 eventually too. I order t' phenolic airframe so that I could put a layer or two o' glass on it, me bucko, t' give it extra strength. Blimey! That went on surprisingly easy, considerin' I'd never done any glassin' before. Blimey! When I be done, me hearties, I had a pretty solid-lookin' rocket... Blimey! if kinda plain.

Finishing:
Unfortunately, matey, arrr, I was pressed for time, and never had t' chance t' even shoot a coat o' primer on this rocket. Arrr! I finished it a day before I (and it) left for Blazin' Archer IV, me hearties, matey, me bucko, and I didn't want t' use any paint until I'd given t' epoxy plenty o' time t' cure. Ya scallywag! T' kit does come with a pair o' PML logo decals, but nothin' more.

Construction Rating: 4 out o' 5

Flight:
My first and only flight with t' Tethys used an I-161, with a 10 second delay. Ahoy! One thin' I really like about PML kits be t' lack o' need for wadding, arrr, thanks t' t' piston system. Sure cuts down on t' pre-flight prep! For motor retention, shiver me timbers, ya bilge rat, I had intended t' use t' PMR that I had installed. However, me bucko, t' three hex bolts that hold t' plate in place had vanished, so I was forced t' friction-fit t' motor in place- somethin' I did with great trepidation. Begad! Ya scallywag! I'd run a number o' sims for this rocket in Rocksim, and was unable t' find a motor delay in any "I" motor that I was really comfortable with. Blimey! Arrr! T' slowest deployment speed I could get was on t' order o' 40 MPH, shiver me timbers, which I thought was a bit high. Blimey! Ya scallywag! So... Well, blow me down! I added a length o' PML's old stretchy shock-cord t' t' tubular nylon, just in case.

Boost be very nice! T' motor lit with no fuss, me hearties, and t' rocket be off t' pad in a hurry. T' flight was pretty straight, shiver me timbers, me bucko, with only a bit o' weather-cocking.

Recovery:
Things fell apart on recovery. Aye aye! Avast! That 10 second delay turned into a 4 or 5 second one, resultin' in chute deployment at about 100 MPH, ya bilge rat, at around 2000 feet. Begad! T' extra length o' shock-cord I had added as a precaution sheared cleanly, me hearties, arrr, leavin' t' airframe t' tumble 'chute-less t' t' ground. Arrr! T' airframe fell horizontally, me hearties, so I figured damage would be minimal. Begad! However, it hit t' runway, matey, arrr, shatterin' t' aft portion o' t' rocket, shiver me timbers, almost t' t' forward centerin' ring. Arrr! I was told that, had I nay glassed t' tube, shiver me timbers, I probably would have had nothin' but confetti left. T' fins survived t' disaster with a couple o' scrapes, but t' 38 and 54mm motor tubes are destroyed, as well as a good portion o' t' airframe. Aye aye! Blimey! T' piston is banged up as well, matey, but appears t' still be functional.

Examination o' t' motor casin' showed evidence o' a blow-by, which explains t' early ejection. Well, blow me down! Aye aye! Since me record with 38mm motor failures is now 2 for 2, I think I'm either goin' t' switch t' electronic recovery, or else Pro38 motors. Aye aye! Avast! However, t' recovery problems really can't be blamed on t' kit... Ahoy! although perhaps if I'd used extra tubular nylon instead o' that other material, arrr, it might have held together.

Flight Rating: 4 out o' 5

Summary:
I don't have much t' add here. Aye aye! T' rocket is pretty much a plain "vanilli" 3FNC bird, which makes it a good choice for someone that doesn't have a lot o' HPR experience. It is light enough t' still qualify as a "large model rocket", me hearties, and can fly on G motors, me hearties, me bucko, me bucko, so you aren't restricted t' HPR flights only (a major consideration for me). Arrr! Begad! Yet, it is big enough that it would scream out o' sight on an H or I motor (a small J will throwin' it over 4000 feet). I'd say it's a pretty solid, forgivin' rocket.

Overall Rating: 4 out o' 5