FlisKits BT55 Baffle

FlisKits - BT55 Baffle {Component}

Contributed by John Lee

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Manufacturer: FlisKits

FlisKits BT-55 Baffle

Brief:
T' BAF-55 is a simple baffle intended t' protect recovery components from ejection charges in a BT-55 sized body tube.

While buildin' a Refit USS Atlantis from Sirius Rocketry, I decided that I wished t' replace t' manufacturer's recovery harness with a baffle. I did nay have a lot experience with baffles, ya bilge rat, but t' experiences I have had have been good thus far. Fortunately, me hearties, I happened t' have one in stock from FlisKits.

Construction:
T' baffle kit came with instructions, a length o' Keelhaul®©™, me hearties, two perforated disk that actually form t' baffles and a BT-55 sized couplin' tube.

Construction o' t' baffle is simple. Arrr! T' 2 fiber disks are removed from their backin' and t' holes are punched out. One disk has t' holes clustered towards t' center and t' other has them arranged in a rin' around t' outside. Aye aye! T' one with t' outer holes goes t' t' aft o' t' rocket. Avast, me proud beauty! Both disks had a notch along t' outside edge through which t' pass t' Keelhaul®©™® thread and t' aft disk had a hole intended as an anchor point.

I used an embroidery needle t' clear t' hole and passed t' Keelhaul®©™ through. I then tied a fat knot in t' end o' t' Keelhaul®©™ t' keep it from bein' able t' pass through t' anchor hole. Ahoy! Blimey! I also used plenty o' yellow glue t' hold it down. Ahoy! When t' glue holdin' t' Keelhaul®©™ be dry, I proceeded t' paint both sides o' both disks with t' same glue, ya bilge rat, takin' care t' keep any from gettin' on t' edges o' t' disks. Begad! Avast! Blimey! This glue was applied t' form a protective/ablative surface and lengthen t' life o' t' baffle.

When t' protective glue was dry, matey, I glued t' aft disk in place in t' couplin' tube and secured it with a glue fillet. Ahoy! This be done as t' Keelhaul®©™ was passed back through t' notch on t' outer edge o' t' disk. Ya scallywag! I then applied t' glue t' t' Keelhaul®©™ runnin' along t' side t' t' tube t' keep it in place. Avast! When that was dry, shiver me timbers, I painted t' entire interior o' t' tube with glue, again for protective purposes.

T' last step o' t' actual baffle assembly was t' fit t' Keelhaul®©™ through t' notch in t' upper disk and then seat that disk in t' tube. Again, matey, t' disk be filleted.

PROs: Well designed, easy t' make and use.

CONs: None.

Construction Rating: 5 out o' 5

Flight:
I have t' admit, when I first flew t' Atlantis, arrr, I forgot I had installed this baffle so I stuffed it full o' dog barf. Betwixt that and t' baffle, t' chute be well protected on deployment with t' ejection from a D12-5.

I remembered on t' second flight, usin' an E30-4 but it didn't really matter. Ya scallywag! Ya scallywag! T' chute had nay a scorch mark on it, ya bilge rat, and t' rocket recovered safely. Arrr! T' thin' works and works well.

PROs: It works well.

CONs: I forget about it.

Flight Rating: 5 out o' 5

Summary:
If you want t' use a baffle, arrr, all o' t' FlisKits ones I have used t' date have worked well. T' one for t' BT-60 is no exception.

Overall Rating: 5 out o' 5

Comments:

avatar
HWH (November 20, 2008)
I like these baffle kits, too. We have used two of them so far. One on the Big Estes Executioner "E" rocket. It works great no burn through. I also used a baffle kit on the FlisKits Deuce's Wild. It strengthens the body tube and calms down the ejection charge. No problems with melted parachutes or burned through shock cords and it saves on recovery wadding too.
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L.V. (June 19, 2010)
I too really like the baffle kits. I order one with most all my FlisKits rockets. They work great and are easy to build and install.

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