We've always discouraged direct sales in favor of supporting your favorite eflight dealers. However, there are a few support areas that we've decided to take on. The first is free upgrades. These are available for download, but for those who prefer a CD, we offer this for $5 ($8 outside of US). Since we lost our European dealer, we now offer the latest ecalc for non-US customers for $42 including S&H. Again, please support the dealers above whenever you can.

ElectriCalc V2.20B for international customers - $42 including non-US S&H.

Upgrade CD to V2.20B for V2 users - $5 including US S&H.

Upgrade CD to V2.20B for V2 users - $8 including non-US S&H.

Exchange V2.20B CD for older disks - $10 including US S&H.**

Exchange V2.20B CD for older disks - $13 including non-US S&H.**

** - Disk will ship as soon as old disk received:

SLK Electronics
2906 Charolais Drive
Greensboro, NC 27406
USA