Veins have much less smooth muscle than arteries. Venules merge to form veins (and ultimately, vena cava) that carry the blood to the heart. Venules drain the capillaries and begin the path back to the heart. Capillaries are the sites of exchange between the tissues and the blood. Thus, they are the major sites of regulation of blood pressure and distribution. Arterioles have little elastic tissue, but can change diameter quickly because of the smooth muscle in their wall. Branching of the blood vessels continues until the vessels are nearly microscopic arterioles. These arteries are called muscular or distributing arteries, e.g. 12.2 (ATA 21) AIR CONDITIONING & PRESSURIZATION 12.2.1 Air Conditioning 12.2.1.1 Introduction The air conditioning pack conditions the bleed air to the proper temperature and humidity and delivers it to the air distribution system for environmental control of the cabin and flight deck.
Their walls have proportionately more smooth muscle than elastic tissue. 21-00-00 Air Conditioning 21-10-00 Compression 21-20-00 Distribution 21-30-00 Pressurization Control 21-40-00 Heating 21-50-00 Cooling 21-60-00 Temperature Control 21-70-00 Moisturize / Air Contamination Control Chapter 22. As arteries enter a body region, they branch and their diameters decrease. the subclavian artery carries blood toward the upper extremity. Large diameter arteries have more elastic fibers than smooth muscle in their walls and conduct blood to regions of the body, e.g. All arteries have an outer tunica externa (mostly elastic and collagen fibers), an inner tunica media (mostly smooth muscle and elastic fibers) and a lining called the tunica interna (endothelial tissue). Experience the ASAP difference today with a competitive, personalized quote when you fill out and submit an Instant RFQ.Blood is carried away from the heart in arteries. Whether the part you are searching for is new, used, obsolete, or hard-to-find, we deliver. With Aerospace Unlimited, sourcing the parts and components you need is simple, and our staff of industry experts are available 24/7x365 to help you obtain everything you need.
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We operate as an ISO 9001:2015 & AS9120B certified and FAA AC 00-56B accredited enterprise serving the civil and defense markets. Maintenance Manual and Illustrated Parts Catalogue Extra EA-400 Air Conditioning Page Date: 13. We provide some of the quickest lead-times in the industry, and shipping is expedited utilizing our robust supply chain locations in the United States, Canada, and the United Kingdom.Īerospace Unlimited is a website owned and operated by ASAP Semiconductor, a leader in the parts distribution industry and proud member of the Aviation Suppliers Association (ASA). If there is a particular ATA chapter part that you are interested in, simply fill out and submit an RFQ form with the requested information and a dedicated account manager will be in touch with you in 15 minutes or less. Under each ATA chapter category, we provide various parts that are listed by their part number, description, ATA number, and ATA chapter for your benefit. Peruse the 100 ATA chapters and find all the corresponding parts that we carry of those ATA numbers, quickly and effortlessly. Currently, the ATA 100 has been combined with the ATA Spec 2100.Īt Aerospace Unlimited, we provide our customers with an extensive ATA Chapters list.
Since then, the Air Transport Association, now operating as Airlines for America, have discontinued updating the chapters. Since its release, the ATA 100 has been periodically updated, having its most recent and up-to-date release in 1999. As a company that represents the airliners of North America, the ATA 100 was released to provide guidelines for technical manuals, as well as serves for maintenance of discussed parts and systems. The ATA 100 chapters were created by the Air Transport Association in 1956.
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ATA chapters also provide information on parts, benefitting repair technicians, airliners, suppliers, and various others on what parts are, what they do, how to repair them, and beyond. Through the 100 chapters, different systems and procedures of aircraft are detailed, allowing personnel to understand certain areas of commercial aircraft quickly and easily. What is the ATA chapter for pressurization Chapter 21 HEICO ATA Chapter 21 Air Conditioning and Pressurization. The ATA 100 chapters refers to the numbering system and referencing standards for commercial aircraft documentation. Through the 100 chapters, different systems and procedures of aircraft are detailed, allowing personnel to understand certain areas of commercial aircraft quickly and easily.