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Old 16th October 2006, 00:13
Revi16 Revi16 is offline
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Japanese Type 98 gunsight??

Anyone out there know anything about Japanese aircraft gunsights, specifically the Type 98?

I've found some info. that talks about a Type 98 (early), Type 98 Model 1 & Type 98 Model 2. Anybody know what the differences are?

Any and all info welcome.

Thanks,
Mike
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Old 16th October 2006, 02:30
Nicholas Nicholas is offline
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Re: Japanese Type 98 gunsight??

I have not come across the designation "Type 98 Early" before but maybe you are referring to the 32 Revi 2b sights taken from He 112 fighters in storage at Kasumigaura and modified for installation in the Zero pending Japanese production? The first Japanese made Type 98 was based on the Revi 2b and was initially manufactured by Tomioka Kogaku KK (Tomioka Optical Co).

The Model 1 was mainly installed on fighter types and had a circular reticule pattern. The Model 2 was used predominantly for dive-bombing on carrier based aircraft and had a square grid reticule pattern.

Model 1 was manufactured by Tomioka at the rate of 1000 units per month and by Chiyoda Seimitsu Kogaku KK at the rate of 200-300 units per month. Model 2 was manufactured by Nihon Kogaku Kogyo KK and Tokyo Kogaku Kikai KK.
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Old 17th October 2006, 00:42
Revi16 Revi16 is offline
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Re: Japanese Type 98 gunsight??

Thanks Nicholas!!!

My norm is Revi's. Haven't been able to find very much reliable info on the Japanese stuff.
Where did you get all the info.?

Regards,
Mike

Last edited by Revi16; 18th October 2006 at 03:01.
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