B-29 Photo Museum

Length 99 feet 0 inches (30.18m), Wingspan 141 feet 3 inches(43.10m), Height 27 feet 9inches (8.46m).

3. "Enola Gay"Atomic bomb drop machine to Hiroshima

Serial NO 44-86292 was Enola Gay, Which doropped atomic bomb on Hirishima Enola Gay in Smithsonian museum exhibition B-29-45-MO S/N 44-86292 Eleven crews of the Enola Gay complain of the justifiability of the atomic bomb drop at present in the Smithsonian museum. If there is not our action it is the battle after that and many victims occurred.

4. The nose front of Enola Gay

The famous Norden bombing sight has been attached inside the window.

5. Bock's Car, Atomic bomb drop machine to Nagasaki

Serial NO 44-27297 was Bock's Car -- tha Nagasaki bomber, now on display at WPAFB Museum, OH In the Dayton air force museum during exhibition.�@

6. Pilot station

Pilot's instrument panel and controls. This is a pilot seat. There is the copilot seat similar to this on this right side. It is according to the B29 operation manual. The positions, operation purpose, operation method of these measuring device and control unit were caused the pilot completely mastered due to safe security. And determining the restriction of many flight it was causing them it observed. The part that puted the cover of the photograph right edge that time is the Norden bombing sight of the highest military secret. The front is a Bonberder seat and able to drop a bomb in visibility fine condition in the daytime. As this Norden sight destroys it before the B29 crash it was commanded. This is a serious precise optic scale and Bomberder set up the air pressure temperature drop angles speed and other data of goal points of the bomber to the Norden sight. The attack goal was confirmed with the optic system. Deciding the distance interval to the drop bomb number shot point it was dropping it. Bomberder measures and records those data and fall need time. And they try hard to the accuracy improvement.

7. Flight Engineer station

Engineer's instrument panel controls and switch panel. It is the engineer seat that is located behind the copilot seat of the nose inside right side. The instruments and operation lever and the likes for the engine 4 base are arranged systematically. Even although it says B29 that time was the gasoline engine of the carburetor installation that the engine stops. Even although it says B29 that time was the gasoline engine of the carburetor installation that the engine stops. The adjustment of the various operation condition that begins from the start of the engine was conducted by these operation. Lubricant temperature of the engine, Temperature of the cylinder head and Adjustment of mixture gas etc, They operated manually. Also the temperature of the most important cylinder head adjusts the flap so as not to exceed permission temperature and prevented heating with the chill introduction. Furthermore, the prevention of the freezing of the carburetor and other it came flying to the Japanese up in the air while operating. It was to the security of the safe operation of B29 diligently in this way.

8. Radio Operator station

Here is Radio Operator station that is located behind the engineer station. There the high sensitivity radio machine and the operation machinery are set. The center on the desk the BC348H receiver, to line up in the 3 upper part command receiver, BC-306-A antenna tuner to the left side and the tube of the left hand is an oxygen mask. The radio equipment in that time is all the vacuum tube style analogue. It is primitive in all of what when digital era thinks now. However, it is the high-class devices group that exceed the imagination to Japanese. At that time, the latest receiver of the Japanese army was he receiver of B29 is the high-class receiver equipped with a various addition circuit with latest superheterodyne. However, the tuning of the finals tube and antenna of the transmitter are the manual operation that searches the dip point while seeing the plate ammeter. The setting of transmission frequency,reception frequency used the frequency meter (Xtal). The reception dial was set up in quest of the number of rooms that appoints it from 2 frequency of the top and bottom of purpose frequency. Therefore all the operation are a manual and the communication technician is the era of a large activity. This method continued in 30 from 20 after the war. The Japanese army collected the BC-348-H receiver from B29 that shot down and was appointing the survey to the professor of an university. As for this BC-348 receiver the ham in the world was requesting it even for more than 20 years after the war. It was as even the ham of Japan crosses the sea in quest of this junk. 9. Communication tunnnel

9. Communication tunnnel

There are 2 bomb hangars of the center inside a machine. This photograph is the one that looked up at that of the front. Communication tunnnel is passing the screen center. The rail form thing that grows downward from the both sides is the hanger of a bomb. As for Communication tunnnel as for they, there is around of in the tunnel where connects the cabin a crew it is saying CREW TUNNEL. Therefore the movement of the crew seems to be possible.

10. The back bomb warehouse

It is the photograph that shot the bomb warehouse of the back toward the front. The hanger of the right and left is an incendiary bomb of 220 pounds (100 kg). The central path is the thing for exhibition and do not exist in the actual body.

11. 500 pounds (227 kg) usually bomb

Mainly they used it to the bombing of a military affair goal.

12. 220 pounds (100 kg) incendiary bomb

The following picture is not a incendiary bomb, It turned out to be AN-M81 260 lb Fragmentation Bomb (M81 steel bomb explosion for anti-person killing). Information providers are Mr. M, H, Kita in Tokyo, Apology and correction May 13, 2017 JA2TKO, The following picture shows the shape of the convergent incendiary bomb and the incoming bomb group in the B - 29 bomb warehouse, For details see the last exhibit and illustration This incendiary bomb makes each city of Japan the burned fields. This incendiary bomb discharged 48 child incendiary bomb (Cluster bomb) in the air after the drop. And it fell in a city area like the fireworks while burning.

13. The propeller

It is right inside engine nasal. The propeller of over 5 m of diameter are a highlight. This propeller absorbs the output of 2600rpm, 2200 horsepowers and become the propelling power of the speed 550 km/hr.

14. Wright R-3350-23 Duplex Cyclone
eighteen-cylinder air-cooled radial engines

This is the highly efficient resource of B-29. The output is 2200hp with 1 base. This photograph is the one that sets up the engine toward the axis and displayed. The axis of the upper part is an output shaft.

15. Diagram of Wright R-3350-23

Specification of Wright R-3350-23 Cylinder diameter 155.6 mm --- Piston stroke 160.2 mm --- Total displacement volume 54,860 cc ---Engine diameter 1, 413 mm --- Drying weight 1, 212 kg --- Gear ratio 0.35 (20:7) --- Compression ratio 6.85 --- Delivering 2200 hp/SL/28000rpm for take off --- War emergency rating of 2300 hp at 25,000 feet --- Standard output 1800hp/1400ft (4267 m)/2400rpm, Turbochargers: Two General Electric B-11type turbosuperchargers, Gear ratio6.06:1. Fixing it to the engine each 2 base it controlled automatic it with an electron device. In order that highly efficient is maintained with the durability of this engine they clarify the use temperature condition(Permission temperature). Specifically, temperature of the cylinder head : 260degree centigrade to/when output the takeoff --- 218degree centigrade to/70% of output continuation operation of the rating . Lubricant temperature : 85degree centigrade at the time of continuation operation Air temperature of the carburetor intake : Prevention of freezing as 30degree centigrade. The engineer was able to adjust these temperature conditions easily. In this way securing the reliability of the engine highly efficient was drawn. Also, the biggest characteristic of this engine equipped the turbochargers of each 2 types to each engines of 4 base. And it is that it was able to fly the altitude of 12,000m highest. I think that this was very epoch-making for that time.

16. Main foot

This is the main foot that supports the huge forms of the gross weight of 60 tons. The photograph is a left main foot in appearance from the right rear.

17. Nasal

There is a R-3350 engine in this Nasal. The photograph is the right outside. Photograph left under is exhaust port. Furthermore exhaust port is in a right and left 2 place. The exhaust turbine supercharger that demonstrated power to a high altitude flight to, each is fixed.

18. 12.7 mm the cannons equipped
at a batter machine gun/back surface

12.7 mm of cannons equipped at a batter machine gun of the body back surfaces are observed from the rear. The swelling of the main plane and nasal harmonize remarkably. The gunner was such a special grade seat and aimed for the interception fighter of Japan of up in the air waiting and fired away. However, visibility did not work in the night operations. It is grasped with the searchlight of a Japanese corps and became a mark.

19. 12.7 mm the cannons equipped at a batter
machine gun/under face

12.7 mm of cannons equipped at a batter machine gun of the nose under faces are observed from the front. The rear is the condition where the door opened in the front and back bomb warehouse.

20. Armor

The unmagnetism armor plate is attached to protect the firearms control device with the crew. Although it is light the sufficient safety is guaranteed.

21. Communication system

Standard electron device : Command radio set / Radio set for communication /LORAN (LOng-RAnge-Navigation) system / Radio compass set / Radio wave altimeter / Marker beacon receiver / Scale landing guidance system / VHF radio device / Collaborative distinction device / Frequency meter / Intercom device / Filter device / Urgent shipwreck SOS transmitter / Autopilot device / Seamanship and bombing radar Search radar / And a various kinds antenna ,Power supply of each independent device. They utilized such radio devices. And, it was confirmed that already the radar was installed to a captain machine. However, that time is the radar of low resolving power yet to grasp the lay of the land in the nighttime of the Japan proper that left 2500 km. I think that look the scope and the radar operator went through hardships very much.

22. Crew positions

Crew usually be 11 people: The front of the front cabin from, Bombardier / Pilot and copilot / Flight engineer / Navigator / Radio operator. The front of the rear cabin from, Starboard waist gunner / Port waist gunner / Top gunner / Radar operator / Tail gunner .

23. Forward gun and camera locations

12.7 mm the cannons equipped at a batter machine gun to the gun support of the front upper part. 12.7 mm the equipment of the cannons equipped at a batter machine gun to the gun support of the front lower part.

24. Rear gun and camera locations

12.7 mm the cannons equipped at a batter machine gun to the back upper part gun support. 12.7 mm the cannons equipped at a batter machine gun to the gun support of the right and left. 12.7 mm the cannons equipped at a batter machine gun to the tail gun support and 20 mm the machine gun and 6 cameras are equipped.

25. Fuel system

The fuel tank is installed full into the main plane. Furthermore, around of it installs it to bomb bays. In this way being full 35,000 liters of dangerous article to the gasoline tank it flew in 10 hours. I think that compare with the kerosene fuel of today's jumbo jet and was very dangerous. And, I think that it was also B29 that becomes covered with flames with the shot if an the enemy's territory. An interception battle experience person reports the interception fighter of a Japanese corps that approaches right under and this main plane challenged a gun with a shot hit 37 mm.

26. Fuel system

Divided the fuel system of B29 every the engine. It is because it considers it to reliability. The fuel is supplied with the pump of the engine drive. Fixing an electromotion pump to each tank exit as, a urgent business the movement between each tank has been enabled.

27. Cabin superchaging and heating system

Air adjustment within the cabin: The temperature and the air pressure inside the cabin are controlled automatically. The air is supplied the 2nd 3rd engine with 2 independent systems by the centrifugal force separation style supercharger as the power resource. There are a back stage cooling machine and gasoline fuel heater in each supercharger system. It is adjusted with a certain heat regulator on the dashboard of an engineer station. As for the pressure adjustment inside the cabin, difference pressure is not linked to the above sea level of 2400 m. From 2400 m to 9100 m cabin inside was fairly controlling pressure to 0.74atm to 2400 m.

28. Oxygen system

Cabin inside installs 16 oxygen cylinder the crew so that be able to go on with a battle with an oxygen mask at the time of a shot hit. Sufficient oxygen is able to be supplied to crew everyone for 4 hours with the above sea level of 25,000 feet (7620 m). Also, the flight in 4 hours are equal in the flying hours from a Japan proper to Tenian air base.

29. Propeller Anti-icer flow diagram

The antifreeze solution is poured along the front of each blade to prevent that the ice is stuck on the propeller blade. The supply of this antifreeze solution is carried out through the nozzle that was attached to the root of each blade of the propeller.

30. Crew ditching position

To, alighting to a bomb, alighting the fuel, small arm, ammunition, camera without necessity and besides the crew equips be discarded and discard it all. With the possess gun all the bombing sights and other secret devices destroy it. A crew must be prepared for and must be stay 6 day at the sea at a lifesaving raft at least after embarkation. And, the medical treatment equipment, quite a lot unstaple food box, drinking water goods were fixed to the procedure lifesaving raft(It swells out automatically with the discharge 5 people a ride lifeboat 4 boat) of alighting to the B29 operation manual, with a zipper and the others. I think that the consideration of possibility was done like this. Furthermore, as for the US air army commander in that time, the army of Japan is unhumanitarian. He is said to have instructed to alight on the water from land to the sea and choose the prisoner of war of the Japanese navy.

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