Nederlandse Modelbouw en Luchtvaartsite

Dutch Modelling and Aviation

In Memoriam

Klaas Willem Jonker
† April 30, 2018

On Monday 30 April 2018, Wilko Jonker died after a long illness at the age of 58. He leaves behind a wife and two children. The Dutch military aviation and plastic modeling were his hobby and on this website he shared all the knowledge he has collected over the years. His hobby has been able to distract him from the persistent disease in his body until the last week of his life. The contacts with other hobbyists were a major support for him.

This website will be maintained by different people for as long as possible, so that other enthusiasts can continue to benefit from extensive content.

Lockheed P2V-7B/SP-2H Neptune


The P2V-7, Lockheed Model 726, was the last version, built by Lockheed of the Lockheed Neptune.
In 1954 the first flight was made. It differed from the previous version by the more powerful Wright R-335-32W radial engines of 3,700 horsepower each, and by the two Westinghouse J-34 W-36 jet engines.

The AN/APS-20 radar radome was moved forward. The bomb bay was enlarged and could carry a load of 10,000 lbs.
Furthermore, the canopy was revised and the cockpit was placed higher and finally also the smaller tip tanks of the last P-2V-5 versions were used.

The first aircraft had a nose dome called Aero 9B nose and missed the long MAD tail boom. Later these were adapted.
The dorsal turret was finally replaced by a window.


 There were about three hundred examples built, plus 48 pieces by Kawasaki in Japan.

Model 726-45-14:
the original version, of which 148 examples were built.
Model 726-45-17:
114 examples with modified equipment.
Model 826-45-14:
25 aircraft without jet engines for Canada.
Model 726-45-18:
15 examples built as P2V-7b for the Dutch Navy.


Technical information Lockheed P2V-7 Neptune
Length: 27,94 m Wingspan: 31,7 m
Height: 8,94 m Wing area: 92,9 m2
Empty weight: 21570 kg Max. start weight: 34573 kg
Max. speed: 635 km/hr Climbing speed: m/min
Cruising speed: 315 km/hr    
Range: 5930 km Service ceiling: 6830 m
Engine type: Two Wright Cyclone R-3350-32W-A2 rated 3750 hp each plus two Westinghouse J-34 W-E jet engines rated 1540 kg thrust each
Crew: -
Armament: Bombs; Torpedoes