Q-500 Engines

AMA 428 Engines

Nelson 40 Quickie 500 - see Performance Specialties

Edmunds Engineering Q500 Engine - see Edmunds Engineering Inc. Home Page

AMA 424 Engines

Thunder Tiger PRO-40

MAGNUM XL 40A Remote Needle Valve

MAGNUM XL 40A Standard Needle Valve

SuperTigre GS-40

O.S. Airplane Engines

Slow Quickie Engines

Irvine .25 ABC MkIII

Magnum XL 28A RNV

Magnum XL 25A RNV

MDS .28 FS Pro Series

O.S. Engines .25 FX

Thunder Tiger PRO-25

SEMPRA Engines

Super Sport .40 - see Jett Engineering (Ask for the SEMPRA engine)

Engine Mounts

Hayes AL-25 Long Mount 1.19 21-25 - This .25 to .36 compatible engine mount has the same firewall bolt pattern as the Jett Engineering 4 bolt conforming Q-500 backplate mounts and the Nelson Q-500 backplate mount. This makes it possible to set up a Quickie airframe for multiple classes. Weight shifting will be required since the Slow Quickie engines are significantly lighter than the 428, 424, and APRA engines.

Engine Info

Model Airplane News - March 2001 Issue
    See the .40 Engine Shootout - Good info about 424 engines

Jett Engineering Technical Info Library
    Good info about engines even if you're not running a Jett

Tech Charts

Jett Engineering - Engine Dimensions

Magnum XL Engines

O.S. Engine Dimensions - Standard (inches)

SuperTigre Engine Dimensions

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