Model Rocketry Study Guide (TR-8 Model Rocket Technical Report) By Books / Paperback Crafts & Hobbies › Hobbies Publisher: Estes Industries, January 1985 Price $24.38 Free Shipping Send to a friend Used - Good Good condition. Slightly dampstained. (Model rockets) $24.38 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.