I would like to know how people in this group are getting their fixed wing systems airborne. In a recent blog at work I discussed our own experience with catapults, bungees and hand launches. Basically, we found that the hand launch was prone to crashes while the catapult was expensive. Our bungee cord offered a happy medium with a short setup time and affordability. If anybody is trying to build their own bungee cord I have a design layout with dimensions at 1:30 of this how-to video here, I hope this can help a few people out there who might be thinking of going with the bungee cord method.