Protos 420 STD V2 is a stretched version of the Protos 380 Standard. 

include new frame(MSH41233).  Rigid tail blades(MSH41181-1). Only difference from 380Evo is tailboom and canopy

Feature:

1.New servo layout for easier maintenance
2.1.5mm full carbon frame
3.Metail servo frame

Specification:

Main Blade Length: 380-425mm 
Tail Blade Length: 68mm -72mm
Length: 800mm
Height: 235mm
Width: 110mm
Main Gear: 120T
Tail Gear: 22T
Auto Gear: 94T
Tail Drive Gear Ratio: 4.27
Estimated RTF Weight: 1300g  (Depending on Setup)
Suggested Max Battery Dimensions: 115x40x35mm

Electronic Requirements:

• Cyclic Servos: Micro size Torq  , Theta, Xlpower
• Tail Servo: Micro size 23mm OR Mini size 35mm
• Typical Speed Controller:
• General and 3D Flight: Kontronik Koby 70, YGE 60 LV, CC Lite 75,, Hobbywing 60A V4
  
• General and Extreme Flight: Kontronik Koby 90 - Jive 80LV , YGE 90 LV, Hobbywing 80A V4
• Typical Motor
• 28XX/30XX/32XX Series w/5mm Pinion 800-1000kV