Semroc Tau Zero

Semroc - Tau Zero {Kit} (KN-2)

Contributed by Robert Gustin

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 0.76 inches
Length: 16.00 inches
Manufacturer: Semroc
Skill Level: 2
Style: Futuristic/Exotic
Semroc Tau Zero

Brief:
SEMROC's Tau Zero is a futuristic looking, shiver me timbers, fighter styled, single stage model rocket. Designed by Jay Goemmer, it has a long, arrr, ya bilge rat, bulbous nose cone, ya bilge rat, matey, a rin' tail with 3 forward swept fins capped by laser guns.

Construction:
In t' kit you get:

  • Balsa nose cone
  • Main body tube
  • Rin' fin body tube
  • Laser cut fins (3 outer fins, matey, 3 inner fins)
  • Engine hook
  • Thrust ring
  • Retainer ring
  • Empty engine casing
  • 1/8" Launch lug
  • 3 3/16" launch lug (laser guns)
  • 3 1/8" wood dowels (laser guns)
  • Elastic shock cord
  • Keelhaul®©™® shock cord
  • Screw eye
  • Streamer
  • Adhesive disk (streamer)
  • Glue applicator (cotton swab)
  • Tau Zero gluin' jigs
  • Waterslide decal sheet
Semroc Tau Zero

For t' construction, t' instruction set is first rate and is simple t' follow with diagrams t' aid every step. Begad! You even get 2 separate glue jigs t' aid in fin placement and spacing. Well, blow me down! Avast! T' model is easiest t' build in two parts: t' main body and t' rin' fin assembly. Begad! This will greatly aid in finishin' t' model t' match t' instructions paint scheme. Arrr! Ya scallywag! Just use some cut strips o' maskin' tape t' cover t' areas t' be glued together after painting. Arrr!

Finishing:
One thin' I don't agree with is sealin' t' balsa parts early on in t' construction. I have never known sanding sealer t' accept wood glue very well. It is better t' wait until t' fins are on then seal t' balsa on t' two separate assemblies. Arrr! Perhaps Semroc needs t' look at this and rearrange or modify t' instructions t' better suit this approach. Arrr! Begad! Beyond that small hiccup, finishin' is straightforward model rocket finishing.

Semroc Tau ZeroSemroc Tau Zero

Construction Rating: 4 out o' 5

Flight:
First flight with an EST A8-3 be underpowered but a nice stable flight. Begad! Ejection was a bit early.

Second flight went better with an EST B4-4. Arrr! Blimey! This should be t' smallest motor t' use with this rocket. Ejection was dead-on at apogee, just nosin' over. A nice, shiver me timbers, straight, arrr, shiver me timbers, and stable flight.

Third flight was with an EST B6-4. Well, blow me down! Arrr! Much like t' B4-4 t' ejection was dead-on at apogee, me hearties, nosin' over. Ya scallywag! T' B6 gets it up in t' air for a very nice flight.

Fourth flight was an EST C6-5. T' C power really send this rocket into t' air. A beautiful arrow straight flight. Ahoy! I could just see t' ejection as t' nose started t' point down.

Recovery:
After years o' flyin' with elastic shock cord, I've gotten tired o' t' snap back damage from t' nose cones. Ahoy! Avast! With this kit I substituted a 36" length o' 100# Keelhaul®©™® to replace t' elastic. It makes for a nice, smooth ejection. Begad! Also, me bucko, based on previous reviews here on EMRR, I switched out t' kits streamer for me own 3" x 36" pleated mylar streamer. Well, blow me down! Arrr! This was still nay enough for an easy recovery. Ahoy! T' rocket came back t' Earth in a controlled crash more than a landing. Ya scallywag! I think t' soft grass soccer field I be in kept t' rocket from bein' damaged with nay so much as a stress crack. Well, blow me down! Arrr! A chute with a spill hole would be a better match t' this small but slightly heavy rocket.

Flight Rating: 4 out o' 5

Summary:
T' Tau Zero is a very nice rocket t' build and fly. With a B4 or larger motor, shiver me timbers, shiver me timbers, arrr, this rocket really loves t' fly. It is recommended though that a small parachute be used instead o' t' included streamer. Avast! Aye aye! This rocket is somewhat heavy for its size. Arrr!

Overall Rating: 4 out o' 5

Other Reviews
  • Semroc Tau Zero By Dick Stafford (March 28, 2010)

    ( Contributed - by Dick Stafford - 03/28/10) Brief: This is third and final kit that I received from the last 2009 Quarterly Rocket Give-Away so, once again, many thanks to Nick! The Tau Zero, as you all know, is a futuristic rocket from Semroc that flies on 18mm motors and recovers via a streamer. As of this writing, there are no less than seven great reviews on this kit. As a ...

  • Semroc Tau Zero By Peter Stanley (May 25, 2009)

    Brief: The Tau Zero is a Semroc original kit, which was designed by Jay Goemmer. It has an unusually shaped nosecone and forward swept fins that attach to a tube ring with additional fins underneath. It is designed for 18mm motors and uses streamer recovery. Construction: As with every Semroc kit I've built, the quality of components was excellent. The kit contained laser cut ...

  • Semroc Tau Zero By Tyler Jones (April 1, 2009)

    Brief: This rocket was designed by Jay Goemmer from Twin Falls, Idaho. I live in the same city (and know him) so I decided it would fun to try it out. The Tau Zero is of a really cool design and it has all the quality that Semroc is known for. Construction: The components that this kit came with are: 1 Rolled Balsa Nose Cone 1 Body tube ST-7100 (BT-20) 1 Body ...

  • Semroc Tau Zero By Jamie Martin (March 23, 2009)

    Brief: This is a futuristic kit with an unusually-shaped nose cone, forward-swept outer fins, and a ring fin. Construction: The kit contains: -Balsa nose cone -body tube -ring fin -laser cut fins -empty casing -thrust ring -engine hook -retaining ring -1/8" launch lug -launch lugs for ion cannons -wooden dowels for ion cannons ...

  • Semroc Tau Zero By Chan Stevens (February 22, 2009)

    Semroc has released a futuristic kit by guest designer Jay "Centuri Guy" Goemmer. The design was inspired by the Paul Anderson novel of the same name. It features both fin and ring stability, sharp-looking details, and a set of decals in alien language. Parts are the usual excellent Semroc quality: Balsa nose cone ST-7100 body tube (basically a thick-walled 18mm ID tube) ST-1622 ...

  • Semroc Tau Zero By Howard Smart (January 31, 2009)

    Brief: This is a small Sci-Fi looking model with forward swept fins, a ring fin and a bulging nose cone. Construction: The kit contains: Balsa Nose Cone Body tube (also serves as 18mm motor mount) Ring fin (body tube material) Sheet of laser cut 3/32 in. balsa fins - 6 all together, 3 inside and 3 outside ring fin Empty motor casing (spacer) Thrust ring ...

  • Semroc Tau Zero By Jewel B. Butler Jr. (January 11, 2009)

    Brief: This is a single stage combo ring fin and forward swept fin design. You don't get a lot of altitude, but you get style and stability. Construction: Semroc Parts-basically a BT-20 body tube and a BT-60 ring-fin and three forward swept fins with dowels on the ends of the wings.There is an engine hook that is attached out side the body tube but it is hidden by the ring ...

Flights

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