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QRP

QRP HYPER 400 6V Motors w/timing advance

QRP Hyper Speed 400 - These are special 35-turn Mabuchi 380PH 6V motors with built-in 15-degree timing advance, made in Japan and finished on Mabuchi's latest dynamic-balancing equipment. 

Two types are available:

Normal rotation for direct drive, planetary gearbox, inner-driven gearbox, or belt drive
#QRP-HYP400-N (blue)
Reverse rotation for offset gearboxes and direct-drive pusher configurations (Zagi, etc...)
#QRP-HYP400-RV (red)

As far as we know, this is the only S400 motor available at this price point with built-in timing advance.  Compared to  the usual S400 motor with neutral timing, the QRP motor develops more peak power and shows markedly less brush wear. Lightly oil the bearings from time to time and you'll be rewarded with a long service life.  Five high-quality capacitors with insulator, diagram showing capacitor wiring, and mounting screws, as seen at right, are included.
Go to 400-Class Motors to see QRP-400 prices

NEW! QRP S400 top-quality Gearbox with Anti-Vibration mount!

The QRP S400 gearbox comes with spur gear for 2:1 ratio, and optional gears for 1.875:1 to 2.5:1 are available separately.

Also included are the unique anti-vibration mounts and lovely aluminum prop adapter.  The 4mm prop adapter fits prop holes 6mm (APC, etc...), and a spacer for 8mm is also included.  The gearbox output shaft is a rugged section of 4mm stainless steel.

The optional #QRP-40006 36mm spinner set shown below fits the prop adapter perfectly.

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