icrashrc
Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In
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 Posted: Sun Feb 21, 2010 3:57 am Post subject: Flap actuator |
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I started a new topic to help avoid thread drift elsewhere.
http://www.ill-eagleaviation.com/electric_flap_drive.htm
Here's answers to a few questions that have been asked on the list and BC.
If the actuator quit responding the flaps would be stuck where they stopped. If this were to happen away from home it would be easy enough to move the flaps manually to the raised position but you would have to land to do so. Todays actuators are very robust with a MTBF cycle life so high John H. probably couldn't even wear one out.
I got the actuator itself from
http://www.firgelliauto.com
We chose the speed and power of the actuator after researching what other planes were using. Probably the closest example was a retrofit system for a Challenger. It used a 80lb force actuator. Ours is 150lb. Calculated needed force is 62.5 lb for the M3X (at) 85 mph.
The positioning system I’m using at the moment is from
http://www.speedwaymotors.com
It would be possible to used a single momentary on-off-on switch to control the actuator and have infinite positions of the flaps.
The position sensor is a in house design and will light one of three LED’s when the actuator position called for is reached. This is still only in schematic form right now. I guess I better get busy…
Glad you liked the mounting bracket. It could have been made out of aluminum in 15 minutes but working with Carbon is such fun.
Scott
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