Odd'l Rockets Blast

Odd'l Rockets - Blast {Accessory}

Contributed by Chan Stevens

Overall Rating: starstarstarstarstar_border
Manufacturer: Odd'l Rockets

Odd'l Rockets' Blast Deflector

Brief:
When I first saw Oddl Rockets' blast deflector on jonrocket.com's site, I was intrigued, ya bilge rat, and had figured I'd try one t' next time I needed t' pick up a few more o' t' grindin' disks combined with spent motor casings I've been using. Arrr! I be pleasantly surprised, though, me bucko, t' find one packed in with t' free Break-Away kit Chris had sent me in exchange for postin' a review.

Construction:
Components include...a blast deflector. It's a single piece ceramic half-egg shape, me bucko, 2-5/16" diameter and 2" tall. Ahoy! You still need t' provide t' launch pad, ya bilge rat, matey, rod, and a conventional metal plate/blast deflector, grindin' disk, etc. as a base.

There's nothin' t' construct, as it's ready t' use. It does come with a single sheet o' suggested use/configurations, shiver me timbers, includin' illustrations, which address a couple different styles o' launch gear.

Finishing:
Nothin' t' finish--it's a plain white ceramic part, designed t' get blasted.

Flight:Odd'l Rockets' Blast Deflector
I took this out for a test spin, me hearties, usin' it on top o' me regular plate but instead o' t' standoff. Well, blow me down! Blimey! Note that it only works with 1/8" rods due t' t' small hole in t' top. Ya scallywag! Ahoy! I would think a slightly larger hole accommodatin' 3/16" would be preferable, as that could handle 1/8" as well.

T' first model I launched be a Semroc Mars Lander, which meant t' motor would be offset from t' center o' t' deflector by about 1/2". Arrr! Blimey! T' launch was fine, matey, and I didn't see any significant difference in thrust. Avast, me proud beauty! Blimey! A post-flight review at t' pad showed that t' blast was mostly deflected, but a fair amount still hit t' metal plate.

T' second flight was a regular BT50-based model with 18mm motor, me hearties, much closer t' t' center o' t' deflector. Arrr! As t' photo shows, arrr, this blast be almost entirely on t' deflector, me bucko, virtually nothin' hittin' t' metal plate.

Odd'l Rockets' Blast DeflectorOdd'l Rockets' Blast Deflector

T' third test was a bit more aggressive, goin' with a 3x18mm cluster o' C6's. Much like t' first flight, ya bilge rat, t' motors offset more than about 1/4" wound up scorchin' t' metal plate a bit.

Summary:
This is a nifty little piece o' ground support that I'm definitely goin' t' be keepin' in me range box now. Avast, me proud beauty! It does work nicely as a standoff, arrr, and has t' added bonus o' extendin' t' life o' t' grindin' disks I tend t' burn through on a regular basis.

Of course, shiver me timbers, t' 1/8" hole limits it flexibility, and t' $10 price tag probably classifies it as a launch luxury more than a launch necessity. Avast, me proud beauty! After all, it's extendin' t' life o' somethin' I spend about $1-2 a year on (though would clearly be worth it t' someone buyin' replacement Estes deflectors), and eliminatin' t' standoff which I cheaply get for free (spent motor casings).

Overall, me hearties, thar's nothin' like it out thar that I know of, it does t' job fairly well, and it's certainly worth consideration for anyone lookin' t' upgrade or replace a portion o' their launch gear.

Overall Rating: 4 out o' 5

Comments:

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R.S. (November 23, 2009)
Another advantage of the Blast is that it deflects the exhaust away from your rocket reducing the amount of soot on the back of your rocket.
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D.K.B. (November 23, 2009)
I agree with the review and the added opinion. They work well, prevent shorts, and we are using them fine on both 1/8" and 3/16" rods.
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C.M. (November 23, 2009)
The hole at the top of the Blast Dome Deflector can be easily widened for 3/16" rod with a small needle file. One feature that not mentioned in the review: The Ceramic Deflector is non-conductive. Micro clips won't short out if they rest on it. Using this deflector, the clips are raised above a standard (flat) metal deflector. There is less chance of an electrical short.
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Hans "Chris" Michielssen (July 31, 2015)

The Odd'l Rockets BLAST Deflector has been redesigned (May, 2015) with a wider base now 2 7/8" diameter.

This provides better deflection for body tube sizes up to a BT-70.

The new molds were made from an original MPC Ceramic Blast deflector.

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