Airframe

The T-41 (i.e., the military version of the Cessna 172) had a "simple mechanical" flight control system using direct mechanical linkages. Direct feedback of forces acting on the control surfaces to the control stick (or yoke) provided a natural feel. The feedback was by the "seat of the pants". The trim system was a mechanical linkage connected directly to a trim control wheel in the cockpit. There is no warning in the T-41 if the trim was set incorrectly. It is the pilot’s responsibility…

initially briefed. With a lack of surveillance on this new LZ, the current enemy presence was unknown. While on approach to land, a rocket-propelled grenade (RPG) struck the right side of Razor 03 while machine gun fire was ripping through the airframe. As the 160th pilots struggled to regain control of the helicopter, Petty Officer Neil Roberts who was a member of the elite SEAL team, was untethered and slipped off the open ramp of the Chinook tossing him 10 feet onto the snowy ground below.…

The first powered airplane flew only 12 seconds and covered 120 feet in 1903 piloted by Orville Wright. (Eyewitness, 2003) The 20th century saw the greatest achievements for aviation as each decade progressed with innovation and advancement. In this day and age, the aviation industry provides an important contribution to economic and social benefits worldwide. However, aviation would certainly not be how it is today without the effect of warfare during the 20th century on the development of…

passenger flight with 285 passengers and 11 crewmembers on board. The first hour and seven minutes of the flight were uneventful and went to plan until suddenly a loud explosion was heard and was shortly followed by large vibrations which shook the airframe.…

Table of Contents 1. Fluid Mechanics 1.1 Main Branches 1.1.1 Fluid Statics 1.1.2 Fluid Dynamics 1.2 Non-Newtonian and Newtonian Fluids 1.3 Fluids in technology 1.4 Fluid mechanics serving role in society 2. Capillary Effect 3. Self Perpetual motion 1. Fluid mechanics Fluid mechanics is related to the fluids that are in motion and forces acting on them. Fluid mechanics has two branches fluid statics and fluid dynamics. In Fluid Mechanics we actually observe fluid motion and…

A GEOINT collection strategy evaluation method must be flexible enough to evaluate small and large scale collection operations and emphasize the accountability of every organization associated with establishing the collection requirements. Additionally, the evaluation method should be as simple as possible to ensure seamless implementation and not add extra burden to those that will have to implement it. As a collection manager evaluates the collection strategy they must be able to reference…

This rib is also suitable for a variety of loading conditions. Forged ribs are manufactured using heavy press-machinery, and are used for sections where very high loads apply. Milled ribs are solid structures, manufactured by milling away excess material from a solid block of metal, and are also used where very high loads apply. The stringers on the skin panels run in the length of the wing, and so usually need to bridge the ribs. There are several methods for dealing with this problem. The…

In the early to mid-1900s, after the end of World War II, the communist North Vietnamese government with the aid of their guerrilla allies within the boundaries of South Vietnam waged war against the South Vietnamese leadership and the French. Seeing the ongoing fight for the French and South Vietnamese, the powerful United States provided assistance in support of their allies, but limited their involvement to supplying equipment and personnel support in efforts to fight off the advances of the…

The key general capabilities necessary to rebalance the Joint Force 2025 given the current strategic direction and global security environment to ensure Freedom of Maneuver (FOM) in the global commons and dominance within the cyber and space domains. Enhanced capabilities to protect cyber and space domains and synchronized partnered alliances are required to counter threats to these domains. This rebalancing is warranted to maintain a level of readiness that meets the needs of the National…

Airplane; a powered flying vehicle with fixed wings and a weight greater than that of the air it displaces. Airplanes to many are just aircrafts able to get them from point A to point B. They are also known to fly through the air for military uses. We all know what they are, but do we ever take the time to think about how they ever came around and who was able to invent such a great invention? On December 17, 1903, Orville and Wilber Wright were the first people ever to fly a gasoline powered,…