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2. Gyrodyne QH-50 DASH - Wikipedia

   en.wikipedia.org/wiki/Gyrodyne_QH-50_DASH

   Serial production of the DASH began with the third version, the DSN-3/QH-50C, in which a 255 hp (190 kW) Boeing T50-4 turboshaft engine replaced the piston engine and the payload was increased to two Mark 44 torpedoes. A total of 378 QH-50Cs were produced before production ended in January 1966.

3. Fleet Rehabilitation and Modernization - Wikipedia

   en.wikipedia.org/wiki/Fleet_Rehabilitation_and...

   During refitting in the early 1950s, FRAM I Fletcher-class destroyers gave up the No. 2, 3 and 4 5-inch/38 caliber gun mounts, leaving only the two mounts on the main deck. A trainable Mark 15 Hedgehog mount took the place of the No. 2 gun mount, connected to a new, enlarged sonar suite.

4. Ferroelectric RAM - Wikipedia

   en.wikipedia.org/wiki/Ferroelectric_RAM

   An additional limitation on size is that materials tend to stop being ferroelectric when they are too small. [ 13 ] [ 14 ] (This effect is related to the ferroelectric's "depolarization field".) There is ongoing research on addressing the problem of stabilizing ferroelectric materials; one approach, for example, uses molecular adsorbates.

5. List of battery sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_sizes

   4.5 + 4.5: H: 91.3 L: 65.1 W: 52.4 This battery contained two independent 4.5 V batteries, and had a four-pin connector. 9 V with a center tap was available by wiring in series. There were two ⌀3.2 mm negative pins spaced 9.5 mm apart and two ⌀4.0 mm positive pins spaced 14.3 mm apart. Negative and positive pins were spaced 18.1 mm apart.

6. EtherType - Wikipedia

   en.wikipedia.org/wiki/EtherType

   That value was chosen because the maximum length of the data field of an Ethernet 802.3 frame is 1500 bytes and 1536 is equivalent to the number 600 in the hexadecimal numeral system. Thus, values of 1500 and below for this field indicate that the field is used as the size of the payload of the Ethernet frame while values of 1536 and above ...

7. Frame synchronization - Wikipedia

   en.wikipedia.org/wiki/Frame_synchronization

   In telecommunications, frame synchronization or framing is the process by which, while receiving a stream of fixed-length frames, the receiver identifies the frame boundaries, permitting the data bits within the frame to be extracted for decoding or retransmission.