Fin box

D Schulz, Structural certification of Airbus fin box in composite fibre construction , Proceedings 14th Conference, International Council of the Aeronautical Sciences (ICAS-84), Toulouse (France), 1984, pp 427-438. 

It is also possible to simulate liquid droplets by surrouridiu g a solute by a fin ite ii urn ber of water moleeu les an d perform in g the sim -ulalion without a periodic box. The water, of course, eventually evaporates and moves away from the solute when periodic boundary con ditioii s arc n ot im posed. If the water is in itially added via periodic boundary con dition s, you rn ust edit the resu Itin g H IN file to remove th e periodic boti ruiary con ditioii s, if a droplet approach is desired. 

Tube Bundle The principal parts of the tube bundle are the finned tubes and the header. Most commonly used is the plug header, which is a welded box that is illustrated in Fig. 11-44. The finned tubes are described in a subsequent paragraph. The components of a tube bundle are identified in the figure. 

TEFC - Totally Enclosed Fan Cooled where the shaft extends from both ends with a cooling fan attached to one with a shroud that directs air over strategically located cooling fins. This motor is m.ore commonly used when the motor is outside the air stream as when driving a gear box with a drive shaft or on blow-through towers. 

Tray, Truck, and Tunnel Driers In order to accelerate drying, the closet is factory-built with tight walls. It forms a box, and the air is passed by means of a fan over a radiator or over finned tubes and then over the trays. A portion of the air escapes at the discharge opening the remainder is reheated and recirculated. An amount of new air equivalent to the volume discharged is admitted at the fan. Secondary heating tubes are placed in the path of the air to restore their temperature and heat content. In the tray drier, shallow pans 2 ft by 3 ft by 2 in. deep, for example, are placed on a rack, forming part of the drier. In the truck drier, the rack is on wheels, and the whole may be wheeled in and out of the drier. There may be one or several trucks to each drier, and each truck may have twelve, sixteen or more levels for trays. 

Institute of Biomedicine/Physiology, Biomedicum, P.O.Box 63, FIN-00014 University of Helsinki, Finland... 

Institute of Biotechnology, Structural Biology and Biophysics Program, NMR Laboratory, P.O. Box 65, FIN-00014, University of Helsinki, Helsinki, Finland Tel +358-9-19158940 Fax +358-9-19159541 E-mail Perttu.Permi helsinki.fi... 

The apparatus was separated into two compartments(A,B) with a silicone rubber sponge sheet which had a hole in the middle to hold fish at just the back of pectoral fin. Both the head and rear parts of fish were covered with two small boxes which had many holes and were fixed to a cover plate of the apparatus. PCP-free water was supplied into the head compartment(A) at a flow rate of 1 liter/h and the overflow from (A) was reserved in an ice-cooled tank for the analysis of PCP excreted from gills. Fish urine was led by a cannula to an ice-cooled flask through... 

Laboratory of Inorganic and Analytical Chemistry, Helsinki University of Technology, P.O. Box 6100, FIN-02015 Espoo, Finland Matti.Putkonen hut.fi, Lauri.Niinisto hut.fi... 

Tail Fuzes M112A1, M113A1 and Ml 14Al differ from the M115 series in that they do not have reduction gears in the vane assembly and, therefore, can arm move quickly. They are designed for use with box fins and differ from each other only in length. Each type has the same diam (1.43-inches), but their wts are different (2.3, 2.5 2.8-lb, respectively)... 

There are two basic types the box fin and the conical fin and two varieties of each of these types the "retarding fin" and the "fin for chemical clusters". Fins are usually manufd from sheet metal, but for bombs of recent design used at high-altitude and high-speed flying fins are made of steel... 

All bombs, except the very largest, are packed in wooden boxes or crates. The fin assemblies for the larger bombs are also crated when packed separately from the bombs. Some bombs are packed with fuzes inserted but with primer-detonators removed. However, rhe fuzes are usually removed and packed in sealed moisture-proof containers. In the latter case the fuze wells in the bombs must be closed with plugs. Some fuzes are packed in the same containers with the bombs, others separately. Bombs and components are stored as shipped. Complete rounds should not be assembled in advance of requirements and assembled rounds should be carried with sealing wires and safety in place at all times until installation in the plane. The arming wire should remain in place until the bomb is released, or until the safety pins and sealing wire are replaced and secured... 

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