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 KAVAN SPF (Slow & Park Flyer) Gearboxes

KAVAN's SPF (Slow & Park Flyer) gear boxes transfers power from the motor to prop more efficiently than with other gear boxes on the market. Designed for 280/300 motors, these gear boxes feature:

  • Steel M5 prop shaft for a proper fit with popular APC electric propellers
  • Horizontal mounting holes are 32mm (1.25 inches) apart. For added stability a third mounting hole is located triangularly at 30 mm (1.18 inches) which is slightly above the prop shaft
  • Threaded prop adapter which can be horizontally adjusted to fit your airplane
  • Available in two prop shaft lengths (standard and long), perfect for different cowl lengths.
  • Lightweight. Only 18 grams (0.64 ounces) for the standard shaft length and 20 grams (0.71 ounces) for the long version.
Specifications
Motor Size Gear Ratio

Standard Shaft

Long Shaft
280 3.00:1 KAV6550300 KAV6557300
280 3.43:1 KAV6550343 KAV6557343
280 3.63:1 KAV6550363 KAV6557363
280 4.14:1 KAV6550414 KAV6557414
280 4.46:1 KAV6550446 KAV6557446
300 5.27:1 KAV6550527 KAV6557527
300 5.80:1 KAV6550580 KAV6557580