With the ever-increasing size of the experimental aircraft fleet, and RVs in particular, it's only natural to want to fly places with your pals in their aircraft also. Flying together is fun, and can have practical benefits: mutual support during long cross-countries, and more efficient ingress/egress from airports for example. But is it really a good idea to "join up" without any training or practice information flying techniques? No, it's not! In the air this often leads to a form of casual formation flight known as the dreaded "gaggle".
Whenever you fly in close proximity to another airplane there is greater risk. Therefore in order to operate safely a standard set of procedures should be learned and practiced before engaging in such activity. In existence since 1999, FFI provides standards and procedures for civilian non-warbird formation flying. If you have an interest in formation flying the best way to start is by getting a copy of the T-34 Association's Formation Flying Manual and Formation Flying, The Art video. These have come to define the "standard" for formation flight for both warbird and homebuilt groups. The chapter's library owns a set of the videos and T-34 manual which are available for checkout to chapter members. To check out the materials see the chapter Librarian. You can purchase your own set from a variety of sources including the the T-34 Association
Though not a chapter activity, there is an active of group of RV pilots in the chapter who regularly fly formation in strict adherance with FFI practices and standards. Several have FFI credentials and are active with the West Coast Ravens. If you are interested in formation flying the best way to learn is by attending clinics that are put on around the country.