HACD Newsletters The Hot Air Competition Division (HACD) posts their periodic newsletters here. 2020-01-02 Newsletter 2020-02-01 Newsletter 2020-03-03 Newsletter 2020-04-30 Newsletter 2020-06-30 Newsletter 2020-08-14 Newsletter 2020-11-03 Newsletter 2020-12-28 Newsletter 2021-02-09 Newsletter 2021-03-19 Newsletter
The Hot Air Competition Division (HACD) posts their periodic newsletters here.
The Hot Air Competition Division (HACD) posts their periodic newsletters here.