The same aircraft demonstrated a significant increase in climb rate when fitted with experimental four-blade propellers.

The design had straight wings and contra-rotating four-blade propellers.

This engine drove a large four-blade propeller.

A single Hispano-Suiza engine mounted between the wings drove a four-blade propeller.

The radial engines were equipped with four-blade propellers.

Furthermore, Milutinović constructed 12 two-blade to four-blade propellers for aircraft of great power.

Both the V5 and V6 were fitted with four-blade propellers, an extra bomb bay and a central "control system".

Regular C-130 "legacy" planes use four-blade propellers.

Second prototype, fitted with four-blade propeller.

Of course, the power no longer drives rear wheels but two 3.20 metre four-blade propellers made of laminated ash.

The aluminum-tubing backpack unit enclosed a compact, two-stroke engine, a 2.5-gallon fuel tank and a four-blade propeller.

Planned version with Nakajima Homare radial engine, four-blade propeller, and more armor protection.

In 1932, a version with a slightly enlarged cabin, revised tail fin, and four-blade propeller entered production as the Farman F.390.

The central engine was mounted above the wing, driving a four-blade propeller, while the wing engines were lower, with three-blade propellers.

The engine was mounted in a nacelle slung from the upper wing and powered a four-blade propeller in tractor configuration.

The paddlewheels and the original steam engine were replaced with a new steam engine and a four-blade propeller.

The six-foot wide four-blade propellers were taken from Seletar Shipping on South Esplanade West.

The aim was to produce an 'all-Australian' aircraft but the constant-speed, four-blade propeller is actually produced by a specialist firm in New Zealand.

Each engine drove a four-blade propeller, each constructed from a pair of two-blade airscrews bolted to the drive shafts at right angles.

The vessels are powered by two MTU 12V538 diesel engines driving two independent four-blade propellers.

The Federal Aviation Administration today ordered the immediate detailed inspection of propeller assemblies on 80 corporate aircraft whose four-blade propellers have more than 3,000 flying hours.

For maximum utilization of the power from the twin engines, large four-blade propellers were fitted which also featured large spinners (as fitted to the J1N).

Its reliability was poor, chiefly due to problems with the four 28-cylinder Pratt & Whitney Wasp Major radial engines and their four-blade propellers.

Propeller hubs were taken from F4U Corsairs, four-blade propellers and spinners from DC-7s.

It was a bat-like design run by a lightweight steam engine of his own invention, with 4 cylinders developing 20 horsepower (15 kW), driving a four-blade propeller.