Spotter's Quiz No 1
Long-Range Flying Boats

1 Consair Coronado

Powered by 1,200-hp Pratt & Whitney radial engines, its speed is well over 200 mph. Range of 5,000 miles is exceeded only by that of the Do-26, for which 5,600 mile range is claimed. Picture shows Coronado most frequently seen in US waters but current model now in production has fixed wing tip floats in place of retractable gear of previous versions. PB2Y-2 has wing span of 115', is 79' 3" long, 25' high.

Wing is high cantilever type with swept-back leading edge, straight trailing edge.

Engines have NACA long radial cowlings, set into leading edge. Outboard engines set further back.

Fuselage is semicircular on top, has two water steps. Hull is deep and wide all the way to tail.

Tail has marked dihedral, round top twin fins and rudders straight on leading and trailing edges.

Dihedral Tail. Twin Fins

2 Dornier Do-24

Originally fitted with Wright Cyclones and intended for Dutch service, the Do-24 now serves on Nazi reconnaissance with three 760-hp BMW radial engines. On normal operations range is estimated at 3,000 miles, top speed is said to be 195 mph. This is a sponson-type flying boat. Wing span is 88' 7", length is 72' 10", overall height is 17' 10". It can be distinguished by high twin fins.

Wing is semi-cantilever parasol type with swept-back leading edge, taper outboard on trailing edge.

Engines have radial cowlings, are set into wing, with center engine higher than outboard nacelles.

Fuselage is normal Dornier hull but has high rear step. Sponsons set forward of leading edge.

Tail has twin fins of inverted keystone shape forward from turret. Tailplane taper sweep-back.

Three Engines. Tail Turret

3 Kawanishi Type 97

Reportedly based on the Sikorsky S-42, this is Japan's most widely used reconnaissance plane. Powered by four Mitsubishi Kinsei radial engines developing a total of 3,600 hp, it has top speed of about 215 mph, range estimated at 1,500 miles carrying 3,500 pounds of bombs. It has gun turrets in nose, aft of the wing, but details of armament are not known. It has wing span of 131', is 81' long.

Wing is semi-parasol type, slight dihedral, noticeably rounded tips. Tip floats near wing braces.

Engines have radial cowlings mounted on top of high wing, extending slightly from leading edge.

Fuselage is extremely broad in beam and bow extends well forward from wing leading edge.

Tail has twin inset fins, rudders with elliptical leading edge, straight trailing edge, long tailplane.

Engines On Top Of Wing

4 Consair Catalina

Workhorse with the Coastal Command and in US coastal patrol, the Catalina spotted the Bismarck. A twin-engine flying boat powered by Pratt & Whitney radial engines developing total of 2,400 hp, it has range in excess of 4,000 miles, top speed of 190 mph, wing span of 104', is 65' 1" long, measures 18' 6" in height. Gun blisters in midsection each carry two Browning .50-cal guns. New Cats have fixed tip floats.

Wing is parasol type with streamlined superstructure, struts. Swept-back, tapered outboard.

Engines have radial cowlings, set into wings close together, extend far forward from wing.

Fuselage has semi-circular top, two water steps, hull extends well forward. Two gun blisters.

Tail is cantilever monoplane type, swept-back stabilizer, tapered elevator high on wasp tail.

Gun Blisters, High Tailplane

5 Boeing 314-A Clipper

When six of these Boeings were delivered to Pan American in 1939, trans-Atlantic air service first became economically practical. Powered by four Wright 1,650-hp radial engines, it has top speed of 190 mph, has range exceeding 4,000 miles with reduced payload, can accommodate nearly 100 men on shorter flights. With wing span of 152', length of 106', and height of 20', the Clipper is the world's largest flying boat.

Wing is high cantilever type, marked dihedral, swept-back leading edge, tapered trailing edge.

Engines have radial cowlings, set into high wing, outboard nacelles higher than inboard engines.

Fuselage is streamlined, two-step type, with cantilever sponsons directly beneath leading edge.

Tail is triple-fin-and-rudder type with rounded fins, rudder. Triangular center fin.

Triple Tail Fins

6 Dornier Do-26

Only four-engine liquid-cooled flying boat now ranked as first-line plane, the Do-26 was originally planned for trans-Atlantic mail service but was completed too late for use. Powered by four Jumo Diesel engines developing total of 2,400 hp, it has speed of 205 mph, range estimated at 5,500 miles. Despite 40,000 pound weight, Germans launch this plane from catapults. It has wing span of 98' 6", is 80' 6" long.

Wing is semi-gull type with center stubs rising sharply to flat outboard sections of wing.

Engines are Diesels, mounted in tandem in slender nacelles extending forward, slightly aft of wing.

Fuselage is normal Dornier type but without sponsons. Wing floats retract inward into wing.

Tail is triangular, rudder overhangs fin. Slight sweep-back on stabilizer, balanced elevators.

Diesel Engines In Tandem

7 Martin Mariner

Newest of the twin-engine patrol bombers to enter wide service, the Martin PBM-2 is frequently seen in American waters. However, the PBM-3, with non-retractable floats, is now going into service. Powered by 1,600-hp Wright radials, it has range approaching 4,000 miles. Details of speed and armament are restricted but the PBM has turrets in nose, stern, and on both sides. It has wing span of 118 feet, is 77', 2" long.

Wing is gull type with straight leading edge, tapered trailing edge, elliptical tips, wing tip floats.

Engines have radial cowlings mounted below wing at juncture of dihedral, straight wing sections.

Fuselage has semi-circular top, tapered sides, sharp two-step bottom, gun turrets bow, stern, and sides.

Tail has toed-in twin fins and rudders of tear-drop design, almost straight leading and trailing edges.

Toed-In Twin Fins. Gull Wing

8 Short Sunderland

Developed from the commercial Empire, the Sunderland is called the Flying Porcupine by Germans who have encountered its heavy armament. Powered by four Bristol Pegasus radials, each developing 890 hp, it has top speed of 210 mph and maximum overload range of 2,900 miles. Maximum overload weight exceeds 50,000 pounds. It has wing span of 112' 10", is 85', 4" long, 32' 10" high.

Wing is high cantilever type with slight sweep-back on leading edge, sharp taper on trailing edge.

Engines are set into wing, have radial cowlings, extend well forward of wing leading edge.

Fuselage is semi-circular on top with straight sides, two-step hull, nose, tail, side gun emplacements.

Tail is monoplane type, high triangular shape with rounded top. Swept-back, tapered tailplane.

High Triangular Single Tail

This "Spotter's Quiz" column was originally published in the December, 1942, "Complete Spotter's Guide" issue of Air News magazine, vol 3, no 8, pp 18, 20-21.
The original Quiz includes 16 photos and 8 three-view silhouettes, 2 photos and 1 three-view for each type listed.
Photos credited to Consolidated, Air News Photos, US Navy, Boeing, Glenn L Martin Co, British Combine, Rudy Arnold, Acme, William Larkins, European.