SIGN the GUESTBOOK. Hickam AFB passenger terminal has two overhead flat screen monitors, your sun clock and their arrival/departure. I was stranded there for two days and was in awe at the accuaracy of your site. I retrived your site now to plan communications with contacts in Japan.
4 - The ideal wind speed for hot air balloon flights - To provide the best conditions for a safe balloon flight landing the maximum surface wind speed on the day of the balloon ride must not exceed 10 miles an hour.
Compared to 7.5 mph, at 15 mph, the wind force against a tent is 4 times as great. Campers should note that as the wind speed (mph) doubles, the wind force (psi) against a tent wall quadruples. The wind force at 15 mph is significant, but manageable with most family tents. This wind speed threshold approaches the manufacturer's wind rating for many family tents, which is about 17 mph.