Engine Gallery

Two Stroke motor in motion!

	An OPS MAXI Twin 60 RCA (Radio Control Aircraft) - an alcohol burner of 3.6 cubic inches. Seen here with a Norvel AME 0.061 High Performance engine. It uses Tuned pipes for an exhaust system. This engine turns a 21x12 to 22x8 prop. It has a piston rings and reed valves. The carb is a pumped walbro type. Roller bearings on the push rods and three ball bearings on the crank.
	This is a SupreTiger 4500 (2.76 CI), a SAITO FA130TDP (1.3 CI Twin cylinder 4-stroke, the OPS MAxi 60 Twin, and the Norvel 0.061 CI two stroke. Each engine is a successful design from a manufacturer with a complete line of engine capacities and power ratings.
	Different carburetor designs seen here. The OPS uses a Walbro style pumped carb, the SAITO uses twin two needle carbs, one for each cylinder, the SupreTiger 4500 uses a rear drum two needle valve carb, while the Norvel uses a more traditional front crank induction air bleed carb.
	This is an A&M 3.2 CI gasoline engine with the electronic ignition. It is a good idea to run an engine on a test stand to break it in and to become familiar with its operation prior to mounting it on an airframe.
	This is the PowerBee single cylinder engine. It is 8.4 cubic inches and has twin Tillison pumped alcohol carbs, a four reed bank induction system and a Riechmuth ignition system. This engine develops LOTS! of power for its 9 lbs, but burns 5.2 ounces of alchol fuel every minute. The tuned pipe and spinner are shown. It will fly the Westcraft scale P-51 Mustang (120-inch wing span) someday.
	This is the front end of a Hobbistar 60 ARF. The Magnum Pro .65 SE has a three blade propeller on the front to get an extra 1/2-inch gound clearance. The 12x8 three blade propeller is equivalent to using a 13x8 two blade propeller. A Fultz nose gear is used to take the punishment of learning to fly. The plane is used for the student pilot training program (it has seen a lot of different pilots).

	This is a D&B 3.7 Cubic Inch Twin on the front of a MAT Airtrax with floats! Home made exhaust.
	Here is a Magnum Pro 180! It is a ringed 1.8 cubic inch two stroke weighing about 3.5 lbs with the muffler. Comes in a really nice wood case. A penny shows relative size. A MVVS .21 Cubic Inch two stroke is shown also. This will be used on the front of a 704 combat Bearcat.
	The SAITO 3 cubic inch twin has a lot of complex plumbing & wiring. It has two carbs and dual glow plugs in each cylinder. Shown here mounted mounted in a RV3, it has onboard glow and uses the Saito fuel pressure system. A 20 - 8 prop seemed right for this model (and is!).
	A SuperTigre 4500 is mounted on a Bud Nosen Big Stick. A stainless steel header connects to the rest of the exhaust system. It has a 24 ounce fuel tank. The engine uses a special ST fuel blend from Morgan Fuels (12% oil, 10% Nitro). Tons of power swinging the 20 - 8/14 prop. You can see the effect of using the Dynatron electric starter on the spinner.

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Last Updated 1/2/04

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