This is a replacement 4 bladed spinner/hub for a R/C Tempest electric powered with a 800mm wingspan. The Tempest is has been sold by a few different resellers
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For power it uses a 820Kv Out-runner Brushless Motor. The original kit comes with a set of replacement blades, but only 1 hub/spinner.
Here is more information about the kit: https://www.nitroplanes.com/95a355-800-tempest-rtf-24g.html
The kit is being sold again by Hobby King:
https://hobbyking.com/en_us/h-king-hawker-tempest-800mm-31-5-w-6-axis-orx-flight-stabilizer-pnf.html?queryID=cf958c89a9e46dd9734299813b33bb47&objectID=83324&indexName=hbk_live_magento_en_us_products
I updated the base to eliminate the need for supports. Both the old and new STLs are there.
