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Feb 09, 2006, 03:39 AM
Registered User
cabou's Avatar
Thread OP

new F5D "limited" rules

Hi all,

I'm more and more interested by this category (cost effective regarding setup price and battery lifetime)
Moreover, speed reached by recent unlimited F5Ds, are "a bit too much" for me now...
especially when you don't have 10/10 on each eye...

but I can hardly find all the details of the new rules.
motors allowed?
wing loading?
flight time?
minimal in flight weight?
battery max weight?
maximum number of cells?
Lipos allowed? (I guess not)
older F5D models compatible? (munga, fox... coz the new models are quiet expensive)

thanks for helping

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Feb 10, 2006, 01:13 AM
F5D Germany
2fast4U's Avatar
Hello Cabou,

F5D Limited is a national German class. So you will find informations about it only on

motors allowed: 2x21 turn car motor (Graupner Dr. Speed 2x21)
minimum total wing surface: 15.40 g/dmē
maximum weight: 1000 g
flight time: 10 rounds ~ 100 - 130 seconds
minimal in flight weight 800 g
battery max weight: 250 g
maximum number of cells: 7
propeller diameter: 140 mm
Lipos allowed? (I guess not): No
older F5D models compatible? (munga, fox... coz the new models are quiet expensive): No. But the typical Limited is the Simprop Turn Left. With 140 Euro for the ARF verion it is cheaper than a used fully moulded. By the way, the wing must have a covered wood surface.

Best wishes
Feb 10, 2006, 03:18 AM
Registered User
cabou's Avatar
Thread OP
thank u very much for this accurate answer 2fast4U
that's all I needed to know

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