Not at that point in the build yet, but would tape or paint on the flap be visible from the cockpit?

 

  Navions have hydraulic flaps without preset positions and that’s the method used. The IV & IV-P manual recommends 10 degrees flaps normal T/O, 20 degrees for max performance, so several marks could be placed if desired. For landing, there are speed limits for flap extension where marks would also be useful. Using the ailerons to set flaps in the pattern could be challenging.

 

  BTW, I’m planning to use a big ol’ hand pump and a piston accumulator with an altered hydraulic system. The idea is to have full hydraulics (flaps and gear up) if the power pack fails. Again, Navions have fully functional systems using a hand backup, and I have used it successfully in an emergency situation. It’s also useful for maintenance checks.

 

  If my mods work as planned I’ll post them. -Bill Wade

Hi All,

There isn't a particular reason I don't want to use flaps other than I don't like the "sinking feeling"...  but I will take a look at Bob's suggestion on how to slow that down.   I was also taught the "deflect the ailerons and put the flaps down to that point" which I guessed was about 15 degrees or so.  I see here that its actually 20 degrees.... 

-dr


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Regards,

Dico Reijers

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