July-August - Air Defense Artillery

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THE BATTALION AAA SURFACE GUNNERY SCHOOL By 1st Lt. Carl M. Guelzo, 3rd AAA AW Battalion IN the March-April ANTIAIRCRAFT JOURNAL Lt. Wm. B. Campbell in his article FA Gunnery Training For AAA gives an outline for a battalion school course. It is well worth study by a prospective instructor, particularly the references to ST 44-4-3, FA Gunnery for Heavy MA, M & GM Branch, TAS, and to FM 6-40. My experience leads me to differ with Lt. Campbell somewhat in the shape of the course. However, my main effort here is to get down closer to the practical problems and limitations in the battalion. No sales talk appears necessary. The AAA gun battalions simply have to conduct such schools, and the self-propelled AW developments in Korea indicate a need there. Fortunately, the subject is fascinating and fairly easy to learn for those who have sound basic arithmetic. There may be some difficulties about instructors, equipment, and time; still it is entirely practicable to conduct the school, and it is so essential to efficient battery and battalion training. For instructors the school will require one officer (preferably the S-3 or his assistant) and one enlisted assistant for full-time duty during the course. If they are well grounded in the subject and have the lesson plans prepared before the course starts, they can conduct four hours' classroom work per day. The course requires 28 classroom hours' instruction, or seven working days. With experienced instructors and apt students the course can be done in one week. The students in one class should be limited to 15, and include the battalion operations and intelligence sergeants, the master gunner, and four MOC plotters; one officer and one enlisted man from each firing battery. Other battery personnel can be given the same training by the battery students in this course or by giving the course a second time for 52 them. In the latter case, four persons from each firing battery should be the maximum attending. The course of instruction should be organized on the assumption that the students know nothing of the subject matter. Surface gunnery can be divided into two distinct phases: forward observer procedure and fire direction center procedure. Attempts to mix the two phases at the same time only serve to confuse the students. Forward observer procedure can be taught and understood without any knowledge of FDC procedure, but an understanding of what the FO is doing renders teaching and understanding FDC procedure much easier. Conclmion: Teach FO procedure first and make it a prerequisite to the FDC phase. The FO phase requires the lesser amount of equipment. A classroom with tables, chairs, blackboard, chalk, eraser, field glasses, and a burst spotter are required. Let's take a closer look at the burst spotter. In the absence of an artillery puffboard range or a slide projector, a good way of indicating the location of bursts with respect to a target in the classroom is on the blackboard. The reticle of a pair of field glasses is drawn on the blackboard, blown up to about three feet in length, with the 0 mil division on the target. The bursts can be "spotted" anywhere around the target with the burst spotter, which is simply a handle about two feet long with a round disc of metal three inches in diameter nailed to one end. One side of the metal disc can be painted black and the other yellow to indicate air and graze bursts. THE FO phase can be taught in 10 hours divided as follows: First hour. A conference introducing the students to the basic fundamentals of FO procedure: organization of the FO party and means of communication; the mil rule; theory of the range bracket; How of observer corrections and S-3 commands; types of fire; elements of initial data and subsequent corrections; announcement of numbers; field glasses. Second hour. Practical period on the calculation of initial data using the mil rule and announcing initial fire request. Third hour. Brief review of calculation of initial data using the mil rule; familiarization on use of rough trig method; introduction to the conduct of precision fire by base point registration. Fourth hanr. Conduct of precision fire missions. Fifth hour. Conduct of precision fire missions and introduction to area fire. Sixth hour. Conduct of area fire. Seventh hour. Time fire in connection with precision and area fire missions. Eighth hour. Mixed fire missions. Ninth and tenth hours: Review, 20 minutes; examination, 60 minutes; critique, 20 minutes. The ideal examination would involve taking the students out to an artillery range and permitting them to fire live missions. Forward observing is actually a skill-it involves being able to do some. thing rather than just be able to answer questions about it. The object is to pose questions that enable the student to use what he has learned rather than just to parrot back academic principles. Examination 1 illustrates a practical and objective type examination that was actually used in a gun battalion. The test should be just long enough for the slower students (not the slowest) to finish in the allotted time. The better stu. ANTIAIRCRAFT JOURNAL
dents will finish much earlier. There is no need to set up any fancy grading system. If the student's paper indicates that he can do the job, pass him; if not, flunk him. You are hoping, of course, that all can pass it. EXAld:INATION--FOmrARD OBSERVER PROCEDURE H~U.ART.ERS 37TH AM GUN BN (90IlU1l) APe 503 have to be improvised. A mimeographed stencil on which are cut the scales to be found on the pertinent GFT will serve the purpose nicely. The scale itself can be constructed by using the tabular firing tables. The master gunner in the Unsat DIRECTIONS: Read each question carefully. The questions contain information necessary in working the problem. Do your computations on this examination sheet and write your final answer in the spaoes provided at the right. 1. You are a forward observer for Battery B, 3d AAA. Gun l3!l. which has just gone into position. Your S-3 wishes you to register on the base point. Your position is illustrated in the aooompanying sketoh. Write your initial fire request in the spaoes provided at the right. SHOW YOUR COMPUTATIONS. Az to BP: 6350jil Rn Obs-BP: 4200 yds Rn Guns-Obs: 4700 yds SI'lUA
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