We did a staright and level lap around the field this is a down wind pass. I used waveosscope with 85 degrees or 29 Celcius We have a weather tower at our field and this video was takin at 6pm. I have a picture showing the temperature. I got this speed from this video that i uploaded on you tube
http://www.youtube.com/watch?v=bbyAqBRPlsE
let me know if im right