1 in stock


You are bidding on an EXTREMELY RARE example of a WW2 Imperial Japanese Navy Dive Bomber Flight Navigation Computer!  Complete in the original box, this computer was used by both pilots and navigators throughout the war, in such aircraft as the D3A “Val”, and others! 


Pilots and flight personnel used this device to accurately plot the flight path to their destination.  It would aid in the calculation of time, speed, distance, airspeed, pressures, densities and temperature.  Strapped to the pilot’s leg, the Dive Bomber computer was limited to calculating Ground Speed & Drift, as well as Search & Intercept Problems. 


Made of a lightweight aluminum alloy, this Dive Bomber Flight Computer is in EXCELLENT condition!  The user would strap this calculator onto his thigh, just above the knee for easy access.  Though it does feature some marks and wear, it is still VERY solid!  The top features a basic aluminum disc marked with grids.  N, S, E. and W are marked in red, as well as an outline of an airplane (corresponds to the longitudinal axis).  All other markings are in black.  The lower portion was used to solve wind problems as well as interception and rendezvous issues.  The straps are 100% intact, and still feature the original buckles.  The elasticity of the straps has mainly been lost, but this is normal due the age.  Also retains the original data label, indicating “Dive Bomber”, and features the Japanese Navy Inspection stamps.  Comes complete in the original box, that has matching numbers!

These are almost never found on the market today, and like most Japanese items is an EXTREMELY RARE item, perfect for any collection or display!


Please email me if you need additional photos or information.


——————- PAYMENT —————–

 Payment should be made within 7 business days at the end of the auction unless buyer contacts me for other arrangements. I accept all forms of payment. 


 ——————- SHIPPING —————– 

My goal is to ship within 7 days from auction end. However, depending on circumstances, it may take up to an additional 1 week from receipt of confirmed payment. If you need it shipped sooner, please let me know and I will do our best to accommodate.


——————- TERMS OF SALE —————– 

Most of my items are vintage, and as such are AS-IS, so you must therefore expect a degree of wear due to age and/or usage. I will describe each auction to the best of my knowledge and take as many photos necessary to ensure you are pleased upon receiving your item. All sales are final, so please make sure your questions are answered to your satisfaction before you purchase. 


——————- ABOUT ME —————– 

Although my passion is the Me109, I do offer many other German Aircraft (Fw190, Me262, etc.), as well as USAF and Japanese items. Occasionally I do offer many non-vintage items such as prints and art relating to the time period. As a private collector myself, I am constantly on the lookout for historical memorabilia, authentic photographs, artwork or anything unique relating to military aircraft.  


——————- COPYRIGHT —————– 

All pictures and descriptions used in my auctions under COPYRIGHT and I forbid the use of these photos and information in any manner such as paper or electronic (internet) publications or otherwise. Use is solely based on my authorization only.