Data for investigation (a/the Type 98 and also Type 0 Magnetic Compass)

Data for Magnetic Compass

Type 98 and also Type 0 Magnetic Compass

In the army, Type 98 Magnetic Compass "KOU" installs to the cockpit seat Indicator board of a small size airplane and Type 98 Magnetic Compass "OTU"
was installed in the place other than cockpit seat Indicator board. With such relation, even in the navy Type 0 Magnetic Compass Model 1 thinks the thing
that the cockpit seat Indicator board, Type 0 Magnetic Compass Model 2 of a small size airplane were installed in the place other than it and will not hinder.

Type 98 Magnetic Compass "KOU"

Company		Tokyo aviation Indicator	Yokokawa electricity production place	Unkown Company
Lighting department		Taira screw	Circle screw	Taira screw
Before Bon Festival department	Before cover	Taira screw	Taira screw	Circle screw+lighting department Taira screw
Before Bon Festival department	Difference modification indication	It is	No	No
Error modification department		Relief A	Relief A	EngraveA
Magnetic Compass indication		Large	Large	Small
Ddifference modification department		Taira screw	Circle screw	Circle screw
After Bon Festival department	After cover	Width	Width 狭/width	Width
After Bon Festival department	Fixation screw	Taira screw	Circle screw	Circle screw
Movement Solution note entrance		Front	Back/Front	Back
Epitaph board department	Epitaph board	Aluminum	Aluminum	Absence
Epitaph board department	Fixation screw	Taira screw	Circle screw	Absence
Others		Miscellany a few of the production process	Normal	Polite

Type 98 Magnetic Compass "OTU"

Company		Tokyo aviation Indicator	Unkown Company(△∥△)
Lighting department		Taira screw	Taira screw
Before Bon Festival department	Before cover	Taira screw	Taira screw
Before Bon Festival department	Difference modification indication	No	It is
Error modification department		Coating A	Coating A
Magnetic Compass indication		Clipping	I cut out it and (simplification)
Difference modification department		Taira screw, NSEW omission	Taira screw
After Bon Festival department	After cover
After Bon Festival department	Fixation screw	Circle screw	Taira screw
Movement Solution note entrance		The upper part left side	The upper part left side
Epitaph board department	Epitaph board	Aluminum	Seal
Epitaph board department	Fixation screw	Circle screw	No

Type 98 Magnetic Compass "KOU"&"OTU" common


Yokokawa electricity production place	Tokyo aviation Indicator
Early period type	Early period type
I will notice that there are many compass of a Yokokawa type, when I see the aircraft Indicator panel of an Japanese Army well.

Tokyo aviation Indicator
Early period type	Latter period type
The Indicator on the right side even this is used a lot similarly.

Type 0 Magnetic Compass Model 1

	Tokyo aviation Indicator	No the contrast object.
	Carry a new-Type Indicator (Magnetic Compass/Tachometer) by defective" demand, area corps of "Magnetic Compass for the fighter in former half of a month, Showa 18: truck/Rabaul
	"Magnetic Compass defectiveness" because I am not a specialist, although I do not understand well and Japan the northern hemisphere, truck/Rabaul area is a southern hemisphere and have flown in the direction where the magnetic needle azimuth difference modification mistook, without being produced and is not that "Magnetic Compass defectiveness" such a thing?
	Probably the Indicator of the defectiveness is the case of a "Type 0 Magnetic Compass Model 1" and the new-Type Indicator may be the case of "Type 0 Magnetic Compass Model 1 KAI" or "Type 0 Magnetic Compass Model 1a".
	The use in the southern hemisphere was enabled the modification method by the modification screw of difference modification device ABC improvement.

Type 0 Magnetic Compass Model 2

	Tokyo aviation Indicator	No a comparative contrast.
	Unlike the Type 0 Magnetic Compass Model 1 difference modification device be movement in the upper part
	The error modification department with the difference modification device department and are same unlike the Type 98 Magnetic Compass "OTU"
	Difference modification device department be the same as the Model 1 in the order of ○ C ○ A ○ B.

Comparison of Type 98 Magnetic Compass "KOU" and Type 0 Magnetic Compass Model 1

	Type 98 Magnetic Compass "KOU"	Type 0 Magnetic Compass Model 1
Appearance	Ball style	Canned food style
Lens department	Roundness	Corner right angle
Common part	Lighting electric bulb department and also same screw
	Cover of a back
	An Indicator board fixation screw (female side) 4 books
	liquid infusion screw
	Electric light socket department
	Entire surface lens frame fixation screw (Taira screw)
Uncommon part	Circle screw	Taira screw
	Error modification department with difference modification device department and different	The error modification department with the difference modification device department and are same.