Shrox Industria Snipet (Plan) Plan

Shrox Industria - Snipet {Plan}

Contributed by Chan Stevens

Manufacturer: Shrox Industria

Brief:

This is a free plan downloaded from Apogee's newsletter E-zine web site (issue #91). Avast, me proud beauty! It's a very nice, matey, basic modroc, matey, me bucko, which I'd rate at about a skill level 2-3. It features two sets o' fins, arrr, arrr, with t' larger set mounted Forward o' t' smaller set for an unusual appearance.

Shrox SnipetConstruction:

T' Parts List comprises:

  • 24mm nose cone
  • 24mm (BT-50) tubin' 13.5"
  • 18mm motor mount kit with 18-24mm centerin' rings
  • 12" parachute/shroud lines
  • Shock cord (1/8" elastic at minimum, arrr, I used 1/4")
  • 1/8" launch lug
  • 1/8" balsa or basswood fin stock (I used balsa)
  • Clay for nose weight (about .25 oz)

There are no instructions provided with this free download, but its basic design is easy t' assemble if you've got some previous experience. Well, blow me down! Ya scallywag! If you have t' full version o' Rocksim, ya bilge rat, you'll want t' print out t' fin patterns, ya bilge rat, as this is much easier than drawin' them from t' dimensions.

Construction is fairly simple. Well, blow me down! Begad! Start by makin' a motor mount out o' 18mm tubin' with a couple o' centerin' rings. Avast, me proud beauty! Optionally use a metal engine hook, though I use friction fit on 18mm motors, so went without t' hook. Arrr! Mount t' motor mount in t' BT50, ya bilge rat, cut out t' fins, me hearties, tack usin' CA, fillet t' seams with wood glue, ya bilge rat, install t' recovery device, and add enough nose weight t' get t' CG about 10.5" from t' nose o' t' rocket.

Finishing:
T' Shrox design depicts a two-tone red on white paint scheme, includin' white tips on t' mostly red fins. Avast! Blimey! I went with that approach, and also added a basic decal "SNIPET" for identification (printed on me inkjet with Avery clear decal paper).

Construction Rating: 4 out o' 5

Flight:
There were no recommended motors, so I played around on Rocksim and came up with A8-3, shiver me timbers, B6-4, ya bilge rat, and C6-5 as t' best motors. First flight was with a B4-4 on a day with steady 15mph winds. Well, blow me down! T' rocket weathercocked a bit, but otherwise flew very well. Arrr! I suspect I went a bit heavier than necessary with t' nose weight, matey, as I was a little conservative flyin' a "plan" instead o' a "kit". Well, blow me down! T' delay be slightly early, me bucko, though I think movin' t' a 6 would have been a bit late. Avast, me proud beauty! Begad! T' rocket be recovered safely with no damage, me hearties, and is now sittin' in me ever-growin' box o' Shrox/Apogee plan birds.

Recovery:
Nay t' best rocket for a windy day, ya bilge rat, matey, I'd back off on t' nose weight or fly under 10mph winds.

Flight Rating: 4 out o' 5

Summary:
My only suggestion for improvement would be a simple decal or two for a better overall appearance.

Overall Rating: 4 out o' 5

Flights

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