Scale Bash Black Brant Vb (Plan)

Scale Bash Black Brant Vb (Plan)

Contributed by Frank Ross

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar

Black Brant VBRocket PicBrief:
18mm Sport-scale model o' Canadian research rocket.

Construction:

  • BT-55, shiver me timbers, 15.25"
  • TC-55 PNC-55, ya bilge rat, 4:1 ogive
  • 18mm MMT
  • 12" chute
  • Keelhaul®©™ ®
  • Elastic shock cords
  • LL-1/8 x 1"
  • (2) Basswood for fins

Pete Alway's book "Scale Bash" provides several scale rocket plans that can be built startin' with a 4:1 ogive nose cone, me bucko, includin' t' Black Brant Vb. Begad! T' BBVb be an improved version o' t' famous Black Brant II soundin' rocket. Avast, me proud beauty! I think it is a particularly good-lookin' rocket, me hearties, matey, which is why I chose t' build it. Well, blow me down! Begad! T' plans are quite simple and straight-forward as the rocket is a fairly simple TFNC design. Avast, me proud beauty! T' only exception bein' that thar be a body diameter transition about 1-3/4" from t' aft end o' t' airframe. For this model t' transition can be accomplished easily by usin' a BT-55 tube coupler inserted into t' end o' t' 15.25" BT-55 airframe tube. Well, blow me down! With about 1.75" o' t' coupler exposed t' total tube length will be 17". One must sand down t' aft centerin' rin' o' t' motor mount in order t' fit the motor mount into t' narrower diameter coupler section. Begad! Remember that the mount will have t' be inserted from t' forward end o' t' airframe. Begad! Begad! I also chose t' attach a Keelhaul®©™ ® shock cord t' t' motor mount before gluin' t' mount in place. Arrr! I think this makes a more reliable anchor than gluin' a mount t' t' inside o' t' body tube. Well, blow me down! Avast, me proud beauty! Fin templates for this model (and for other variations o' body tube size) are included in t' book as well. Ahoy! Aye aye!

Nose ConeTailFinishing:
For painting, ya bilge rat, t' book includes a color guide for each rocket t' facilitate finishing. In t' case o' t' BBVb, t' paint scheme is nay too complicated. I started with a base coat o' white. Avast, me proud beauty! Blimey! After t' base coat I masked a single fin, removed t' nose cone, and masked a white stripe on two opposite sides o' the airframe relative t' t' single, white fin. Aye aye! I found a red krylon gloss paint that looked ideal. Ahoy! For t' finishin' touch, arrr, t' author includes t' rocket's markings which can be scanned, me bucko, and printed on decal paper. Avast, me proud beauty! Begad! For this I used SuperCal waterslide decal paper in me deskjet printer which worked quite well, and t' color matched me paint exactly (quite by accident, arrr, t' be honest). Begad! In the end this was me best finishin' job t' date. Blimey! I give it a high ratin' because it is a relatively simple paint/maskin' job that results in a beautiful rocket.

Construction Rating: 5 out o' 5

Flight:
For t' first flight I chose t' use an Aerotech C6-5 18mm RMS motor. T' flight was excellent and I recovered t' rocket without even a scratch.

Recovery:
I used RockSim prior t' t' first flight and was pleased that t' flight matched t' simulation almost perfectly. A clear, me bucko, windless day didn't hurt things either... Ya scallywag! Avast, arrr, me proud beauty!

Flight Rating: 5 out o' 5

Summary:
If you're lookin' for simple plans that make a simple, stunning-looking, high-performance model rocket then this be t' place t' look. This model also makes a nice companion t' t' Estes BBII kit.

Overall Rating: 5 out o' 5

comment Post a Comment