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× 20. Wing Weight Estimating Simplified 20. Wing Weight Estimating Simplified $20.00
$20.00
× 15. Organization for Weight Control 15. Organization for Weight Control $20.00
$20.00
× 12. Weight Control - Aircraft Design Problem 12. Weight Control - Aircraft Design Problem $20.00
$20.00

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Subtotal $60.00
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Total $60.00
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