You can also use the quickspawn keys. "7" to spawn a Cessna, full throttle, "7" again, etc... In less than one minute you'll have dozens of birds trying to take of to the sky. However, the result is not going to be a proper flight formation, but rather a complet mayhem since planes (in JBSIM?) are not really stable without a lot of trimming. The majority of them will go kissing the ground after a quick turn, and a few will keep a kind-of-ok trajectory and will fly in all the directions.
Most amazing thing is that you can go far away from them, when you come back they will still be here (if you manage to find the spot again), flying awkwardly before having an appointment with a cliff, or better a quick bath in the deep depths of the ocean.
