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The Grumman S-2 Tracker (S2F prior to 1962) is the first purpose-built, single airframe anti-submarine warfare (ASW) aircraft to enter service with the United States Navy. ...
The S-II's common bulkhead design was tested in 1965 on the subscale Common Bulkhead Test Tank (CBTT), made of only 2 LH2 tank cylinders. [ 4 ] The LOX tank was an ellipsoidal container of 10 meters diameter and 6.7 meters high holding up to 83,000 US gallons (310 m 3 ) or 789,000 pounds (358 t) of oxidizer. [ 5 ]
Ordnance crest "WHAT'S IN A NAME" - military education about SNL. This is a historic (index) list of United States Army weapons and materiel, by their Standard Nomenclature List (SNL) group and individual designations — an alpha-numeric nomenclature system used in the United States Army Ordnance Corps Supply Catalogues used from about 1930 to about 1958.
A Citation II seen shortly after landing. The Citation II (Model 550) was developed to provide the same docile low-speed handling and good short-field performance as the preceding Citation I while addressing a primary criticism of that aircraft — its relatively slow cruise speed of around 350 kn (650 km/h) at altitude. [2]
Post-World War II production used linked ammunition. In a belt with mixture of ammunition types the number and type of rounds per 5- or 10-round segment is used. If different ammunition types were used in the segment, they were alternated (for example, A–B–A–B–C rather than A–A–B–B–C), with the tracer round (C) at the end.
Certified versions of the Pitts are now produced by Aviat Aircraft in Afton, Wyoming.It is available as the S-1 single-seater with an up to 200 hp (150 kW) flat-4 Lycoming engine and a 17 ft 4 in (5.28 m) wingspan, or as the S-2 two-seater variant featuring a 260 hp (194 kW) flat-6 Lycoming and a 20 ft (6.1 m) wingspan.
The S2 9.2 is a recreational keelboat, built predominantly of balsa-cored fiberglass, with teak wood trim. It has a masthead sloop rig, a raked stem, a slightly reverse transom, a skeg-mounted rudder controlled by a wheel and a fixed fin keel. All models have a length overall of 29.92 ft (9.12 m), a waterline length of 25.00 ft (7.62 m ...
The S2 6.9 was derived from the 6.7 and used the same Wennersten-designed hull. S2 Yachts engaged Graham & Schlageter to make changes to the cockpit, cabin, sailplan and the keel, however the result was a boat that was no faster than the 6.7. [1] [3] The S2 6.9 is a recreational keelboat, built predominantly of fiberglass, with wood trim