Bill, I am answering in spite of not being an expert!
On your first question, I have hard data. When my vision was a little bit better, I was able to fly my plane about 1 mile away from me. I know because I have lost planes and then refound them with a GPS, which gives me the separation of the starting and ending point. After watching dynamic soaring movies I doubt our planes get over 100MPH in the typical victory dive. This is pure, subjective judgment. Anker RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.