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Old 10-30-2005 | 05:29 AM
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Ali
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From: Northamptonshire , UNITED KINGDOM
Default RE: Flaps and the Skymaster Hawk

Note: If you apply full flap on this model at any kind of speed the model will pitch down and the flap will override the elevator no matter how much mixing you have. We advice to everyone is to take some time during the first flights and following flights to get used to the flaps and how they interact with pitch. We suggest getting some height, slowing the model down into wind and as the speed decays gradually applying more and more flap. This way you can monitor any pitch change and get used to the feel of the model.
When deployed correctly the flaps can be left down and the model flown perfectly happily. We only concern is with either too much speed or too much flap without the correct up elevator mix.

Another point to remember is that you want to set your mix from flap to elevator so that the elevator is a progressive as the flaps. We fly a hawk recently where the customer had set the flap and stab mix so that he only got his 15mm of up elevator when full flap was deployed. Not Good. He had a model that wanted to pitch down until he hit full flap and then it would shoot back up again.
With the correct flap set up the model will sit perfectly for landing,

I don't mean to try and teach you how to !QUOT!suck eggs!QUOT! But this is what is written in the Skymaster instruction manual.
it is just as important to get the elevator mix set up correctly as it is not to deploy the flaps at the wrong speed. I am also experimenting with a little bit of crow (up defelction on both ailerons) with good effect.
Regards Al