The Hornet might be a bit much if you're completely new, I'd suggest getting something simple like the F-5 just to get your feet wet.
Don't get me wrong, neither the Hornet nor the Viper are difficult to learn, but it might seem a bit overwhelming if you don't already have a foundation to build upon.
Most modules have very good training missions that will take you through all the basics like start up, taxi, take off and landing. Once you've got that down you can move on to the more advanced systems like the weapons.