THOY Phoenix

THOY - Phoenix {Kit} (PK-103) [1990-1993]

Contributed by Carl Tulanko

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Manufacturer: THOY
Style: Sport

Rocket Pic

Brief:
T' THOY Phoenix is a near half scale version o' t' original Phoenix/AIM-54 used by t' U.S Navy as a long range air t' air missile. Arrr! This 4” diameter High Power rocket stands 46” tall and is currently produced by Rocket R & D, who bought t' rights t' all THOY kits.

Construction:
My kit was ordered directly from Rocket R & D, as all t' dealers I called were out o' stock. Ahoy! They cut me a new kit that day and I had it within 3 days o' t' order, shiver me timbers, which is excellent service in me book. Blimey! It came bagged with a 4” plastic ogive nose cone, 4” diameter heavy paper body tube pre-marked with fin slot and launch lug locations, arrr, a phenolic 38mm motor mount, matey, ply centerin' rings, pre-cut 1/8” plywood fins, 29mm motor adapter, shock cord and cable, shiver me timbers, ½” launch lugs, ya bilge rat, me hearties, a 30” bright orange circular parachute, arrr, a VERY impressive detailed decal sheet and a two page instruction manual. Aye aye! All parts are o' very good quality, matey, although I was a bit surprised that t' shock cord was 1” elastic, ya bilge rat, which appears t' be older technology.

PartsT' only problem I had with t' kit be with t' long upper stabilizer fins, as they had warped a bit by t' time I received them. Avast! I eliminated this problem by soakin' t' inside curved side with water and a sponge, me bucko, then supported t' ends and weighed down t' center so t' fins were bowed t' other direction. Ahoy! An hour or so later, t' water was dried and t' fins were straight again.

Fifteen-minute epoxy was used throughout t' construction, which begins with t' assembly o' t' motor mount. Arrr! Thoy uses a steel cable with crimp ends, me bucko, which is looped through two holes in t' top centerin' rin' and crimped, prior t' assemblin' t' motor mount. Begad! Ya scallywag! As extra insurance, I soldered t' wires at t' crimp joints for additional strength. Blimey! Begad! T' shock cord was then tied and tack glued t' t' other looped end. Avast, me proud beauty! Aye aye! I will see how t' shock cord holds up after a few launches, matey, shiver me timbers, then I may replace it with tubular nylon.

Next, t' instructions have you epoxy t' centerin' rings t' t' motor tube, then glue t' assembly inside t' body tube. Begad! I would recommend that you epoxy only t' top centerin' ring; use t' bottom centerin' rin' only for alignment until t' top ring's epoxy has set inside t' body tube. Well, blow me down! Begad! This will allow you t' remove t' lower centerin' rin' so you can get some good glue fillets at t' fin base where they attach t' t' motor tube. I followed t' instructions t' t' letter and wound up usin' Aeropoxy for fillets, which had t' be applied through t' fin slots. Aye aye! This was a bit difficult t' do, me hearties, however, matey, me hearties, if you make t' bottom centerin' rin' removable, arrr, you can easily add fillets and glue t' lower centerin' rin' flush t' t' bottom o' t' body tube after t' fins are completed.

Included in t' kit was a 29mm adapter, which was simple t' construct and be next in t' build process.

Fin SlottingAfter this be completed, me hearties, t' fin slots were cut out usin' an exacto knife. Arrr! You will have t' measure t' length o' t' slot yourself, as t' markers are only vertical. Avast, me proud beauty! I used an upper fin as a template for slot length. Begad! Just be sure t' measure from t' bottom o' t' tube t' t' bottom o' each slot and keep this distance equal for each upper fin set.

Gluing the finsNext, me hearties, you taper t' edges o' each fin; a table sander cut this work down considerably and they turned out pretty nice. Ahoy! Just make sure nay t' take o' too much wood on t' taper. Begad! Once this was complete, t' lower fins were glued t' t' motor mount and body tube. Begad! Well, ya bilge rat, blow me down! Note that t' “through t' wall” fins appear t' attach fine, even though t' TTW mountin' does nay extend t' full length o' t' fins. Begad! Some fittin' is required prior t' gluin' t' fins, so make sure you “FIT” each fin before gluing. Avast, me proud beauty! I numbered each fin and slot t' make sure they would be installed in t' slot t' which they were fitted. Aye aye! Aye aye! Also, I had t' sand some length off t' inside tabs as they were a bit too long on t' two tabs for t' surface area t' sit flush with t' body tube. Ahoy! Maskin' tape was used t' hold each fin in place until t' epoxy cured. Avast! Aye aye! Once t' lower fins are epoxied, glue on t' upper fins, shiver me timbers, matey, insurin' they align properly with their lower counterpart. Aye aye! Begad! If you opted t' keep t' lower centerin' rin' removable, now be t' time t' add fillets at t' motor mount joints, matey, arrr, then glue t' lower centerin' rin' flush t' t' bottom o' t' body tube.

I decided t' glass t' fins and body tube for additional strength, me bucko, matey, shiver me timbers, rather than seal them with sandin' sealer as t' instructions recommended. Avast! Finishin' resin was used t' fiberglass t' fin area since it has a long cure time and really soaks into t' wood. Arrr! Begad! T' upper portion o' t' body tube was glassed separately usin' 30 minute epoxy, which left a nice, easy t' sand finish and added some weight up front where I wanted it. Aye aye! Ahoy! Before glassin' t' upper tube section, shiver me timbers, t' cloth was “tacked” on lengthwise usin' Cya so it could be pulled tight around t' tube without shifting. Once all glassin' was completed, t' excess cloth on t' fin edges was removed, me bucko, me hearties, me hearties, and then edges were sanded and shaped. Ahoy! Finally, t' entire rocket was sanded usin' 120 grit paper t' start and I finished with 320 grit sandpaper. Ya scallywag! It turned out very well and glassin' did nay seem t' add much weight t' t' model, me bucko, even though I know t' weight will show up when finished.

Fillet DamFillets were added next; smaller fillets were applied t' t' long stab fins by hand, matey, while t' lower fin fillets were made usin' maskin' tape as a “dam” t' hold t' epoxy. Well, arrr, blow me down! Thirty-minute epoxy was used for t' lower fillets; heatin' it in t' microwave prior t' mixin' made it nice and thin along with “bubble free”. It also cut t' set time down t' about 8 minutes.

Once all fillets were added, me bucko, t' launch lugs were attached. Avast, me proud beauty! You get a single piece ½” heavy paper tube lug, me bucko, which is cut at an angle into two pieces. Well, shiver me timbers, blow me down! I used a 30” piece o' ½” steel rod t' hold t' lugs in place until t' glue set. Blimey! One nice feature was t' fact that t' body tube be pre-marked for lug placement, ya bilge rat, matey, which takes t' guesswork out o' where they need t' be mounted. Avast, me proud beauty! Filets were add t' t' lugs usin' t' same method as described for t' lower fins, matey, ya bilge rat, however, I made sure t' entire lug, includin' t' top, me hearties, matey, was coated with epoxy for strength. Once t' lug fillets were shaped, shiver me timbers, I glazed t' bottom centerin' rin' with epoxy for a smooth waterproof finish.

T' nose cone came with a good-sized clump o' clay for added nose weight, which was epoxied into t' nose cone tip. Avast, me proud beauty! After t' first flight, I will see if any additional weight may be needed and epoxy some lead shot in t' nose cone if necessary.

Finishing:
Final sandin' was done in t' fillet area usin' 100 grit paper, shiver me timbers, then finished with 150 grit sandpaper. Ahoy! Avast, me bucko, me proud beauty! White Krylon primer be applied next and I used 150 grit t' cut away any excess epoxy resin left from t' fiberglassin' and t' blend in t' cloth seams. Use an electric sander in t' glassed area, which will cut through t' epoxy nicely and blend glass seams well. Arrr! Blimey! A few more coats o' primer were added, arrr, then I wet sanded with 320 grit. Begad! Ahoy! Two more coats o' primer were added and I finished it up by wetsandin' with 400 grit. Aye aye! Any small fillin' be done next, me bucko, then two final coats o' primer were added and wetsanded with 600 grit wet/dry sandpaper. Begad! Light Gray Glossy Krylon paint was used on t' body tubes and fins, matey, which left a nice and smooth surface t' apply decals. Arrr! T' nose cone was done in Krylon Flat White. I used Testors Gloss Red and Yellow for t' 1” stripes and used a piece o' Monokote self stick Chrome for t' silver section. Avast! Arrr! Once all decals were applied, TopFlite Clear Dullcoat was applied for t' flat military look. When applyin' t' Dullcoat, matey, matey, you must use light “dusting” layers; t' Testors stripes you painted will orange peel if you put it on too thick. Note that t' stripes and decals were nay added until after t' rocket’s first flight. Ya scallywag! Blimey! Finally, t' nosecone and parachute were attached per t' instructions. Ahoy! Ya scallywag! Don't forget t' tack glue your knots with a drop o' epoxy. I did purchase and install a 1” steel link so t' parachute could easily be removed later for storage. Begad! Blimey! Next, three holes were drilled in t' bottom o' t' tube for a PML motor retainer and t' retainin' slugs were installed. Avast, me proud beauty! Aye aye! As a last step, I drilled two 1/8” holes in t' side o' t' upper body tube, just a few inches below t' nosecone seat t' prevent pressure ejection.

Construction Rating: 5 out o' 5

LoadingFlight:
My rocket weighed in heavy; 3lbs 11oz when comparin' t' t' WRasp charts o' 2.2 lbs. I can account for t' extra weight though, me hearties, since I always try t' build strong and wound up addin' some weight with glassin' and big fillets.

This is a basic, motor ejection deploy model, ya bilge rat, ya bilge rat, which makes preppin' it pretty straightforward. One other item that be added be a large Nomex® parachute protector, arrr, so I wouldn't have t' deal with wadding. Aye aye! Blimey! Blimey! T' rocket was prepared and I did have t' add some maskin' tape t' t' base o' t' nose cone for a good fit.

In the Air My first launch be on a H242T with a medium delay. Arrr! I opted for this load because a H123 would nay have been enough for a model o' this weight and it was a bit windy outside, which told me t' use somethin' t' get it off t' pad quickly. Blimey! T' Phoenix was placed on t' pad and we awaited t' countdown. Arrr! T' H242 Blue Thunder ignited immediately and lifted t' Phoenix with authority! It was a very stable launch and no windcockin' occurred, matey, even with those large fins. Arrr! What was really cool was t' “whistling” sound it made while slowin' down as it reached apogee; kind o' sounded like an incomin' missile; Really cool!!!

Recovery:
T' parachute deployed about a second after apogee, shiver me timbers, so t' medium delay was a bit too much, arrr, but a short delay would be way too short; some tunin' will be required t' get it just right. Blimey! T' Phoenix landed safely, but downwind a bit, so I had t' walk a good distance for retrieval. Ahoy! T' rocket was in perfect condition and I was very pleased with t' first flight o' this bird. Begad! T' Nomex® protector worked great and t' parachute was in like new condition with no scorch marks. There be some powder buildup on t' lower section o' t' shock cord where it attaches t' t' steel cable, ya bilge rat, shiver me timbers, me hearties, but it still looks good. Well, blow me down! Arrr! I do like t' current location o' CG, me bucko, which is right at t' leadin' edge o' t' long fins. Blimey! Begad! I want t' keep t' same stability, arrr, but use a large motor for t' next launch, such as a I 161, ya bilge rat, so I’ll check t' weight difference in motors and add some lead shot t' t' nose cone for compensation o' motor weight. Avast, me proud beauty! Altitude appeared t' be around 1200-1400 feet for t' flight, however, high winds kept me from launchin' again that day.

Flight Rating: 5 out o' 5

Summary:
Summary: T' THOY Phoenix is a “test proven” model that has been around a long time and still remains a great flier! I am very pleased with this model and recommend it t' everyone; its looks and performance seem t' appeal t' a large group o' fliers, which is why it has stood t' test o' time. Blimey! Construction be very simple and t' problem I had with t' warped stab fins be t' be expected; t' warpin' was minor so I do nay consider this an issue. Well, blow me down! Arrr! I am, ya bilge rat, however, ya bilge rat, still very leery o' t' elastic shock cord and feel it's a matter o' time before it gives, me bucko, me hearties, so I will probably replace t' cord with tubular nylon o' appropriate length. Arrr! Also, me bucko, t' very detailed decals really brin' out t' looks o' this bird. Avast! In summary, matey, if it's military you like and performance you want, t' Phoenix is a must have model for your silo!!!

Overall Rating: 5 out o' 5

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