the Centuri Tiger Streak (5357) and the Estes Apache 2 (1388) are the same rocket with different decals and paint, that's it. Over on plans.rocketshoppe.com they've got a (bad) image of the fin template for the Tiger streak, but there's no indication of scale, and it's so rough, I'm not willing to risk cutting balsa for it.

Can someone make a new scan of either one's fins (unassembled) that has some form of scale (like a ruler)?

Thanks!
Jim
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Dreaming of making the rockets I dreamed of as a kid (and then some).

"The Guide says there is an art to flying", said Ford, "or rather a knack."
"The knack lies in learning how to throw yourself at the ground and miss."

Launching is Optional... Landing? That Depends on Trees.

On page 2 of the Tiger Streak PDF, there is a smaller outline of the two fins together. I've found that these "thumbnail" images are pretty accurate in shape. Enlarge that small image until it matches the area of the "rough drawing".

I think I used the outlines in the file to build mine. If the patterns are larger than the actual fins, trim them down to where the lines disappear. That's probably the thickness of a ball point pen around the outer edges of the fin. Anything else outside that line can be sanded off during the finishing process.

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Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
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SAM 0044
AMA 352635

One thing to help with the fin size is that the booster fin root is the same length as the BT50J booster body tube.

BTW....this rocket flies very well when modified to use a D12-0/D12-7 combo.......

DOH! Yes! I'd forgotten that simple rule-of-thumb. The length of the BT-50J is the same as an engine casing, 2.75" Use that as the baseline for scaling correctly.

Thanks for that reminder, Joe!

__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635

Homework and my Cherokee D have kept me busy the last several days... Thanks for the tips guys!

__________________
.
.

Dreaming of making the rockets I dreamed of as a kid (and then some).

"The Guide says there is an art to flying", said Ford, "or rather a knack."
"The knack lies in learning how to throw yourself at the ground and miss."

Launching is Optional... Landing? That Depends on Trees.