Anyone got the dimensions/shape? Either numbers or a pic with ruler would be helpful. I’m trying to sim it and I can’t find any Rocksim/OpenRocket files.

Thanks much!

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TRA #19705
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There’s a scan of the fins on the Ashasta site but no ruler for reference http://ashasta-sadie.com/2021/02/11/astron-explorer/

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John Scott B.

NAR #102949/L1

A few photos

Attached Thumbnails

     

Just what I needed - Thanks very much!

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TRA #19705
SAM #0001
Huntsville, AL

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OpenRocket (22.2.beta.5) file attached. Internet tells me the BT-20 pod tubes are 12 inches long, hoping that's right. Had to leave off the plastic tail cone as i have no specs for that, but inserted a mass object at the CG to bring the weight up to the value on the face card.

Attached Files

astron_explorer.ork (4.2 KB, 5 views)

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Up next:
Under construction:
Under repair:
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Bill Cooke
NAR #31312
TRA #19705
SAM #0001
Huntsville, AL

My rocket blog
My rocket fleet

I can confirm the pod tubes are 12" long.
The instructions list the lower detail cone as part no. 071044.
Exposed length is 6.5", shoulder length is 1", taper under shoulder is 3/8" in length.
Tail cone is part no. 072690. Exposed length 11/16", shoulder is 1/4". Rear taper diameter is 1-1/8".

Here is a full size PDF extracted from the Estes instruction sheet. It is 4 in wide balsa. I did rearange the fins to fit on std 8.5x11 paper

Attached Files

7264 ASTRON EXPLORER FINS 4in.pdf (7.5 KB, 21 views)