“The USTS has disapproved the use of the Yamato Model 321 engine in the OSY-400 class for the 2016 race season”
The USTS has disapproved the use of the Yamato Model 321 engine in the OSY-400 class for the 2016 race season, even though specifications show in the Technical Manual. This is being done because of the lack of engines available and questions about the specifications submitted. This model will be reviewed for the 2017 by the Tech Committee for further approval.
Also the use of any model 321 parts on a model 302 is not legal a this time.
The legal models of Yamato’s for OSY-400 will remain the 80, 102, 202, and 302.
Thank you,
The Tech Committee
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