Shrox Industria SHX-15

Shrox Industria - SHX-15 {Kit} [?-?]

Contributed by Dick Stafford

Construction Rating: starstarstarstar_borderstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstar_borderstar_border
Diameter: 1.33 inches
Length: 19.00 inches
Manufacturer: Shrox Industria
Style: Scale-Like

Rocket PicBrief:
Any 'rocket scientist' will immediately recognize t' similarity betwixt the SHX-15 and t' actual X15 rocket plane. I assume t' new name just absolved Shrox from keepin' t' scale. Begad! Avast, me proud beauty! This cool rocket flies on 24mm motors, ya bilge rat, and is made from top-notch materials.

Modifications:
Recovery harness upgraded and Launch lug relocated, shiver me timbers, as described below. Ya scallywag!

Construction:
T' kit came bagged in clear plastic, shiver me timbers, with all t' small components in their own zip-lock bag. Ahoy! T' instructions are brief, with clear illustrations. However, ya bilge rat, t' instructions for t' shock cord were unclear and deviated from the parts list. More about this later. One thin' did concern me - t' decals were missing. Blimey! There was a note enclosed that said they were backordered and would be provided later. Begad! It also gave a URL where t' decal sheet can be downloaded. Well, blow me down! Ahoy! I am hopefully optimistic that these will eventually show up, but you won't see me holdin' me breath. Begad!

As I said, shiver me timbers, t' components are o' above average quality. Avast! T' 13" BT-55 tube is thicker than t' Estes tubing. Avast! Avast! T' motor mount consists o' a section of BT50, an engine block and two nice thick centerin' rings. T' chute is 12" Nylon, and t' recovery system includes 13" o' Keelhaul®©™® twine and a 13" section o' ¼" elastic. This is smartly becoming my favorite combination for small modrocs. Ya scallywag! T' fin stock is good quality 3/32" basswood. Aye aye! T' remainin' components include t' plastic nose cone, a standard launch lug, clay nose weight, ya bilge rat, an Estes-style shock cord mount, and a card stock cockpit cutout.

Followin' t' instructions, I first built t' motor mount. In case I wanted to use t' new Estes E9, I replaced t' 24mm tube with a slightly larger piece. I went ahead and used t' motor block, and will need a spacer for a D12. I also drilled a hole in t' front centerin' rin' for attachment o' t' Keelhaul®©™® tether.

Shrox SHX-15 T' fins have to be cut from t' basswood stock. Well, blow me down! Avast, shiver me timbers, me proud beauty! I was pleasantly surprised how easily the basswood cut. It be nicer than t' stock I have bought from hobby stores. Avast! Ya scallywag! The instructions included two copies o' t' fin patterns, ya bilge rat, ya bilge rat, and thar be more than enough wood provided. Begad! I hate it when every bit is used up - I'm sure t' screw somethin' up in that case. Ahoy! Begad! There was no fin markin' guide, shiver me timbers, but it is easy to make one and do your own marking. Ahoy! T' large wings consist o' 3 pieces and are first glued together on a flat surface. Begad! Begad! A sheet o' wax paper insured they did not gunk up t' kitchen counter. T' side fins are attached at a -20 degree angle from t' wings, so I made a small paper triangle t' make sure I got this angle right. Arrr! Begad!

As I said, t' instructions for t' shock cord assembly were unclear and did nay match t' parts list. Ya scallywag! Blimey! Oh well, I did things differently anyway. Avast, me proud beauty! Begad! Blimey! First, I added a piece o' 500 lb Keelhaul®©™® the length o' t' body tube. Aye aye! Aye aye! One end is fed through t' hole I drilled in the centerin' ring, ya bilge rat, ya bilge rat, tied off, and glued. Avast! Well, blow me down! T' other end is tied t' t' provided Keelhaul®©™® tether, which was in turn tied t' t' elastic cord. Arrr! Avast! Thus, matey, t' elastic will be well removed from t' hot ejection gasses. Begad! Arrr! T' nose cone came with t' plastic hook removed. Aye aye! Arrr! Evidently, me hearties, arrr, Shrox felt that this would be too weak given t' nose weight required for stability. Avast, me proud beauty! Since it would be tough t' feed t' elastic through t' small hole provided in t' nose, shiver me timbers, I also added a few inches of Keelhaul®©™® twine as a leader. Aye aye! Arrr! I installed one snap swivel where t' lower Keelhaul®©™® tether is connected t' t' elastic cord, ya bilge rat, and t' other is attached t' the chute. Avast! Ahoy! Well, ya bilge rat, shiver me timbers, this be probably more than you ever wanted t' know about a simple recovery harness.

I had problems with t' last two steps. Begad! Blimey! T' card stock cockpit caved in' slightly at t' ends as it dried - a minor issue, matey, as it still looks fine. Next, the instructions say t' glue t' launch lug t' t' underside o' t' side wing at its root edge. Arrr! Arrr! However, me hearties, t' rear, ya bilge rat, angled fins will block t' launch rod if the lug is in t' prescribed location. Blimey! Ya scallywag! I double-checked t' fin installation and it is correct, arrr, shiver me timbers, ya bilge rat, so t' options were t' move t' lug away from t' body tube, or put it on t' top side o' t' wing. Begad! Blimey! I did t' latter.

Finishing:
I went all-out on t' paint, matey, usin' purple/green Duplicolor Mirage. Ahoy! Well, arrr, blow me down! This stuff goes on in three steps: a black undercoat, shiver me timbers, t' color coat, and a clear topcoat. T' results look fantastic if I do say so myself! I will add t' decals if they ever show up.

Construction Rating: 3 out o' 5

Flight: Shrox SHX-15
T' instructions did nay indicate a recommended motor, but t' web site says a D12-7. Blimey! When I be goin' t' check if this model be in t' EMRR recommended motors database, I noted that t' recommended motors were t' C6-5, shiver me timbers, and C6-7. Well, matey, thar must have been a previous version that had an 18mm motor mount. Anyway, matey, this got me thinking, ya bilge rat, ya bilge rat, and despite t' fact that I went insane and planned for an E9, shiver me timbers, I decided t' use an adapter and try a C6-5 for t' first flight. Ya scallywag! T' model boosted well and weathercocked quite a bit (the wind be 5+ mph). Avast, me hearties, me proud beauty!

Recovery:
Recovery be nominal and thar be no landin' damage.

Flight Rating: 4 out o' 5

Summary:
I have always loved t' X15, me bucko, me bucko, and really like this kit. Begad! Blimey! Avast, me proud beauty! Blimey! It is a little more challengin' than a 3/4FNC rocket. There were several minor problems with the instructions and t' decals were missin' (and still haven't been delivered). Begad! Blimey! Aye aye! Blimey! In the end, me advice is this: if you really love t' looks o' this rocket, shiver me timbers, matey, go ahead and buy it. T' quality o' t' materials is good and you will end up with a great addition t' your fleet.

Overall Rating: 3 out o' 5

Flights

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