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-   -   F-18 stabs (https://www.rcuniverse.com/forum/rc-jets-120/11617871-f-18-stabs.html)

RAPPTOR 06-01-2015 05:58 AM

F-18 stabs
 
Dont want to use, flying stabs.
Changed to conventional .. 30 % eleavtor
have read that flaps blanket out stabs.{ on f-18}
my change, more likely to have less control?
Because of blanket effect? {if any}
i have done this on many f-16.
Worked super
AIR SALLY HAD SOME INFO ON THIS ..

erbroens 06-01-2015 07:28 AM

2 Attachment(s)
Never experienced blanket out effect with mine with flying stabs, nor any other problem with them.

It is possible that you will have slightly less pitch authority at low speeds, but you can live with this just shifting back a bit the cg.. only problem with it is that the plane will be slightly less stable at landing approaches. Donīt think that using flaps in your plane would be a issue.

p.s. this was yesterday.. great fun at Joinville/ Brazil. ;-)


http://www.rcuniverse.com/forum/atta...mentid=2099847http://www.rcuniverse.com/forum/atta...mentid=2099848

RAPPTOR 06-01-2015 09:13 AM

Thank you

EDFJim 06-01-2015 10:40 AM

F-18 needs a lot of elevator authority on takeoff because the main gear are so far aft.. Make sure the nose gear is long enough for positive AOA when it's on the ground.

erbroens 06-01-2015 10:58 AM

Just remembered now.. there is a german modeler who scratched built a f18 with conventional elevators.. he uses the flaps without issues,

even for takeoff wich is the full scale solution for a easy rotation in this airframe. (I use 45 degree flaps for takeoff too).


https://www.youtube.com/watch?v=X4lB56TA93E


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