Loening R-4
# Loening R-4

The Loening R-4 was a racer aircraft built by Loening in the early 1920s.

## Design

The R-4 featured a low-wing monoplane layout, and the Packard engine weighed three times the size of the aircraft and took up a quarter length of the R-4, nicknamed the "flying engine". Both R-4 racers (AS68559 and AS68560) were entered in the 1922 Pulitzer Trophy race with poor results, being reported as "almost total flops".

## Operators

### United States

* United States Army Air Service

## Specifications

Data from , Airwar : Loening R-4

General characteristics

* Crew: 1
* Length: 7.16 m (23 ft 6 in)
* Wingspan: 8.20 m (26 ft 11 in)
* Gross weight: 1,383 kg (3,050 lb)
* Powerplant: 1 × Packard 1A-2025 V-12 water-cooled piston engine, 450 kW (600 hp)
* Propellers: 2-bladed fixed pitch propeller

Performance

* Maximum speed: 270 km/h (170 mph, 150 kn)
