These books are for free! These books are mostly the books used by the anna university and other important top universities in the stream of engineering! All these posts are collected for the internet sources.
Boeing Design Manual
Efficient Viscous Design of Aircraft
Introduction to Space Sciences & Spacecraft Applications
Aircraft Design Projects for Engineering Students
Aeronautical Engineering
Aircraft Structures for Engineering Students
The Theory & Design of Air Cushion Craft
Finite Element Method Programming with Mathematica - Airplane Design
Super marine Spitfire
Helicopter Dynamics
Gas Turbine Engines
Principles of Gasoline & Diesel Fuel Systems
Principles of Internal Combustion Engines
Engineering Design with Solid Works
Enhancing CAD Drawing with Photoshop
Structural Design & Laying of Underground Drains
Analytical Mechanics of Aerospace Systems
Architecture for Fiber Optic Sensors & Actuators in Aircrafts Propulsion Systems
How to Design, Build & Test Small Fuel Rocket Engines
Elements of Gas Turbine Propulsion