The 3D printed L-39 Albatros is designed to look and fly like the full size L-39. The optimized edf duct ensures great performance without the use of cheater holes. Designed to be powered by a 50mm FMS electric ducted fan the model has great performance and flight times from 6-8 minutes. The model is designed to be printed entirely from regular PLA or PolyAir 1.0 from 3DLabPrint. Alternatively the model can be printed from LW PLA except fuselage sections 3 and 4 which should always be printed from regular PLA or PolyAir 1.0
	
	
			If printed from regular PLA or PolyAir 1.0 it is recommended to use the 4S version of the 50mm FMS edf and a 4S2200mAh battery. If printed from LW PLA or PolyLight 1.0 it is recommended to use the 3S version of the 50mm FMS edf and a 3S2200mAh battery. Model specifications:
	
		Wingspan: 900mmLength: 1008mm
	Wing Area: 12,3dm²
	Wing Loading: 81g/dm²
	Airfoil: Clark Y modified
	Ready to fly Weight (4S2200mAh): 1190g
	FMS EDF (4S) max thrust: 850g
	Thrust to weight ratio: 0,7
	
	The L-39 Albatros is designed with an optional catapult hook for safe and consistent bungee assisted launch. The model can be hand launched but it is recommended to use a catapult or bungee with 6kg pulling force for a safe launch of the model.
	
	DIY Bungee launcher: https://youtu.be/ASX42mwIAyA
	
		
	
	Bill of Materials:
	
		1mm pianowire, 600mm2x100mm carbon rod, brass rod or aluminium rod
	5x3mm magnets, 12 piece
	Cyano hinges or similar
	Thin or medium thickness cyano glue and accelerator spray.
	EDF PLA version: FMS 50mm 4S edition available at www.FMSModel.com
	
	Receiver: 4-6 ch
	Servos: 3 x 9g HXT900
	ESC: 40A
	Battery PLA version: 4S2200mAh 25C or higher
	Battery LW PLA version: 3S2200mAh 25C or higher      
			
			
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