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From: | Chris |
Subject: | [Paparazzi-devel] Reply to:"Re: contra rotating propellers? (Prof. Dr.-Ing. Heinrich Warmers) |
Date: | Sun, 19 Jun 2011 10:38:05 +0300 |
User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.17) Gecko/20110424 Thunderbird/3.1.10 |
Hi. First of all thank you for the information and your comments.I will use two coaxial brushless motors (and two ESC) so there is no gearbox and it's losses. The only problem i can think is the added drag and reduced efficiency of the second propeller
when the first one is stopped and braked in flight. Chris
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