Junkers Ju 88

Specifications

1st Flight 1942

Crew: 4 (pilot, bombardier/front gunner, radio operator/rear gunner, navigator/ventral gunner)

Length: 14.4 m (47 ft 3 in)

Wingspan: 20 m (65 ft 7 in)

Height: 4.8 m (15 ft 9 in)

Wing area: 54.5 m2 (587 sq ft)

Empty weight: 9,860 kg (21,737 lb)

Gross weight: 12,105 kg (26,686 lb)

Max takeoff weight: 14,000 kg (30,865 lb)

Powerplant: 2 × Junkers Jumo 211J-1 or 211J-2 V-12 liquid-cooled inverted piston engine, 1,000 kW (1,340 hp) each for take-off

1,010 kW (1,350 hp) at 250 m (820 ft)

790 kW (1,060 hp) at 5,200 m (17,000 ft)

Propellers: 3-bladed VDM variable-pitch propeller

Performance

Maximum speed: 470 km/h (290 mph, 250 kn) at 5,300 m (17,390 ft) and 12,500 kg (27,557 lb)

Cruise speed: 370 km/h (230 mph, 200 kn) at 5,300 m (17,390 ft) economical cruising speed

Range: 1,790 km (1,110 mi, 970 nmi) with 2,896 l (765 US gal; 637 imp gal)

Ferry range: 2,730 km (1,700 mi, 1,470 nmi) with 4,028 l (1,064 US gal; 886 imp gal)

Service ceiling: 8,200 m (26,900 ft)

Time to altitude: 5,400 m (17,700 ft) in 23 minutes

Wing loading: 220 kg/m2 (45 lb/sq ft)

Power/mass: 0.100 hp/lb (0.164 kW/kg)

Armament

Guns:

1 × 7.92 mm MG 81J machine gun on flexible mount in front windscreen, firing forward with 1,000 rounds.

1 × 7.92 mm MG 81J machine gun on flexible mount in lower fuselage nose glazing, firing forward with 1,000 rounds.

2 × 7.92 mm MG 81J machine guns on flexible mount in the rear of the cockpit canopy, firing aft with 1,000 rounds each.

1 × 7.92 mm MG 81Z twin machine gun on flexible mount in the rear ventral Bola position, firing aft with 1,000 rounds.

Bombs: Up to 1,400 kilograms (3,100 lb) of ordnance internally in two bomb bays rated at 900 kg (2,000 lb) and 500 kg (1,100 lb) or up to 3,000 kg (6,600 lb) externally.

Carrying bombs externally increased weight and drag and impaired the aircraft’s performance.

Carrying the maximum load usually required rocket-assisted take-off.

Variants

The Junkers Ju 88 is a German World War II Luftwaffe twin-engined multirole combat aircraft. 

Junkers Aircraft and Motor Works (JFM) designed the plane in the mid-1930s as a so-called Schnell bomber (“fast bomber”) that would be too fast for fighters of its era to intercept.

It suffered from technical problems during its development and early operational periods but became one of the most versatile combat aircraft of the war. 

Ju 88A

Junkers Ju 88 A-4

Main bomber type with Jumo 211 engines.

Ju 88 A-0

Pre-production aircraft.

Ju 88 A-1

Initial production variant. 895 kW (1,200 hp) Jumo 211B-1 engines

Ju 88 A-2

Jumo 211 G-1 engines.

Ju 88 A-3

Conversion trainer.

Dual controls and throttles, various instruments duplicated.

Ju 88 A-4

Improved variant.

Longer wingspan, due to redesigned wingtips.

Stronger defensive armament. Power provided by Jumo 211 J-1 or J-2 engines producing 1,050 kW (1,410 hp), driving wooden bladed propellers.

Reinforced undercarriage.

Provision for four external bomb racks.

Ju 88 A-5.

This version actually predates the A-4.

Earlier models of Ju 88 upgraded with longer wings and other equipment.

Jumo 211B-1, G-1 or H-1 engines all rated at 890 kW (1,200 hp) for take-off.

Ju 88 A-6

Was equipped with a balloon cable fender.

A counterweight was mounted in the rear fuselage.

Extremely vulnerable to fighter interception, most reverted to the normal A-5 version, fender and counterweight removed.

Ju 88 A-7

Dual control trainer based on the A-5

Ju 88 A-8

This version had balloon cable cutting capabilities, crew reduced to three, Jumo 211F-1 engines

Ju 88 A-11

Factory built tropical version

Ju 88 A-12

Dual control trainer.

Ventral gondola, dive brakes and all armament removed.

Ju 88 A-13

Low level assault version.

Dive brakes and bomb sight removed.

Additional armor for crew, engines and fuel tanks.

Armament consisted of bombs and up to 16 MG 17 housed in pods.

Ju 88 A-14

An improved A-4 version, more armor for the crew, Kuto-Nase balloon cable cutters, MG FF cannon in the ventral gondola, bomb sight removed.

Ju 88 A-15

Based on the A-4, it featured an enlarged wooden bomb bay, capable of holding 3 tons of bombs.

Ventral gondola removed, only two defensive MGs.

It was rejected as the bomb bay “bulge” caused too much drag and a thus a reduction in speed.

Ju 88 A-16

Dual control trainer based on the A-14

Ju 88 A-17

Dedicated torpedo bomber, no ventral gondola. One PVC torpedo rack under each wing replaced the two bomb racks.

A long housing on the starboard side of the nose contained the torpedo aiming mechanisms.

Crew of three.

Ju 88B

Prototype with all-new fully glazed “stepless” crew compartment nose, developed into Junkers Ju 188.

Ju 88 B-0

10 pre-production aircraft with “stepless” fully glazed nose.

Ju 88C

Zerstörer, fighter-bomber and night fighter, based on A-series, but with sheet metal nose.

Ju 88 C-1

Heavy fighter, 20 converted from A-1, Jumo 211 engines

Ju 88 C-2

Heavy fighter, 20 converted from A-5

Ju 88 C-3

Heavy fighter with BMW engines, none built

Ju 88 C-4

Heavy fighter, reconnaissance variant, based on A-5.

60 built and 60 converted from A-5

Ju 88 C-5

Heavy fighter, like C-4 but with BMW 801 engines, up to four converted

Ju 88 C-6

Heavy fighter and Night fighter, based on A-4, Jumo 211J engines with 1,044 kW (1,401 hp), 900 built

Ju 88D

Long-range photo-reconnaissance variants, based on the Ju 88 A-4/A-5.

Ju 88 D-1

Long-range photo-reconnaissance variant based on Ju 88 A-4.

Ju 88 D-2

Long-range photo-reconnaissance variant based on Ju 88 A-5.

Ju 88 D-3

Tropicalized D-1.

Ju 88 D-4

Tropicalized D-2.

Ju 88 D-5

as D-1 but with VDM metal propellers instead of Junkers wooden propellers

Ju 88G

Night fighter, new fuselage with A-series’ ventral Bola (Bodenlafette) gondola omitted, tail section from Ju 188, aerodynamically improved conformal gun pod for a quartet of forward-firing 20 mm (0.787 in) calibre, MG 151/20 auto cannons below the former bomb bay.

Ju 88 G-1

BMW 801 radial engines with 1,250 kW (1,677 hp), FuG 220 Lichtenstein SN-2 radar

Ju 88 G-6

Junkers Jumo 213A inverted V12 engines with 1,287 kW (1,726 hp), used either FuG 220 Lichtenstein SN-2 90 MHz or FuG 218 Neptun 158/187 MHz frequency radar, either with the usual Hirschgeweih eight-dipole aerial setup or experimentally with the more aerodynamic Morgernstern tripled crossed-dipole aerials.

Some very-late-war aircraft equipped with experimental FuG 240 Berlin cavity magnetron based 3 GHz radar, with dish antenna in bulbous solid nose.

Optional with Schräge Musik upward firing guns with two 20 or 30 mm (0.787 or 1.18 in) guns.

Ju 88 G-7

Identical to G-6, but with Jumo 213E high-altitude engines, planned for use with FuG 218/220 with Morgenstern array or FuG 240.

The G-7 was also to be installed with wings from the Junkers Ju 188.

Ju 88G-3, 4 and 8 not produced.

Ju 88H

Long-range photo-reconnaissance, fighter variants, based on the stretched Ju 88G-series fuselage.

Ju 88 H-1

Long-range maritime reconnaissance variant, equipped with a FuG 200 Hohentwiel radar and a trio of remotely controlled cameras in the aft fuselage.

Ju 88 H-2

Fighter variant intended to attack Allied long range convoy escort aircraft armed with six Forward firing MG 151/20.

Ju 88 H-3

Ultra-long-range maritime reconnaissance variant similar to H-1.

Ju 88 H-4

Destroyer variant.

Ju 88P

Anti-tank and bomber destroyer variant with single Bordkanone series 75 mm (2.95 in), 50 mm (1.97 in), or twin 37 mm (1.46 in) calibre cannon in conformal ventral fuselage gun pod mount, which mandated removal of the Bola gondola under the cockpit section, conversion of A-series bomber.

Produced in small series only, they were perceived as a failure for both anti-tank and anti-bomber use.

Ju 88 P-1

Heavy-gun variant fitted with single 75 mm (2.95 in) Bordkanone BK 7,5 cannon in ventral gun pod.

Appeared in mid-1942 in small numbers.

Ju 88 P-2

Heavy-gun variant with twin 37 mm (1.46 in) Bordkanone BK 37 cannon in ventral gun pod.

Ju 88 P-3

Heavy-gun variant with twin 37 mm (1.46 in) Bordkanone BK 37 cannon in ventral gun pod, and additional armor.

Ju 88 P-4

Heavy-gun variant with single 50 mm (1.97 in) Bordkanone BK 5 cannon in ventral gun pod. There were 32 built.

Ju 88 P-5

Proposed heavy-gun variant with single 88 mm (3.46 in), none known to have ever been built.

Ju 88R

C-series night fighters with BMW 801 engines.

Ju 88S

High-speed bomber series based on Ju 88 A-4 but with ventral Bola gondola omitted, smoothly glazed nose with radial-ribbed supports instead of the “beetle’s eye” of the A-version, and GM-1 nitrous-oxide boost, fastest of all variants.

Ju 88 S-0

Fitted with two BMW 801 G-2 engines, single 13 mm (0.512 in) dorsal gun and 14 SD65 65 kg (143 lb) bombs.

Ju 88 S-1

Fitted with two BMW 801 G-2 engines, the GM-1 boost system and could carry two SD1000 1,000 kg (2,200 lb) bombs externally.

Ju 88 S-2

Fitted with two turbocharged BMW 801J engines, wooden bomb bay extension as used on the Ju 88 A-15.

Ju 88 S-3

Fitted with two 1,671 kW (2,241 hp) Jumo 213A engines and GM-1 boost system.

Ju 88T

Three-seat photo-reconnaissance version of S-series.

Ju 88 T-1

Based on the Ju 88 S-1 but with bomb bays fitted for extra fuel or GM-1 tanks.

Ju 88 T-3

Based on the Ju 88 S-3.

 

Share on facebook

Share on facebook