Kap,
The 1st gen MK1 was indeed fire and forget, as it did TV matching, so it didnt require input from the pilot to guide it.
As expected, it didnt work well with 1960s technology and was eventually replaced with the controllable 2 way radio linked version...
The extended range version the MK3 ER (extended Range) was developed, and replaced it in production very early, with the same missile body and warhead and the same limited guidance.
From there the Walleye MK5 with the larger warhead and wings. From there the ERDL (data link added) version for guidance, changing target, or relocking onto target was developed. That would be the Walleye II with the datapod you speak of.
See data below...
Quote:
The next major step in the evolution of Walleye was the ERDL (Extended Range Data Link) modification. One drawback of the Walleye's guidance system was the requirement to lock the seeker onto the target before launch, meaning that the attack aircraft had to come relatively close to a potentially heavily defended target. The ERDL system equipped the Walleye with a two-way datalink, and the launch aircraft were equipped with an AN/AWW-9 (later AN/AWW-13) underwing data-link pod. The pilot could now launch the Walleye out of visual range of the target, turn away, watch the bomb's TV camera image, which was transmitted via the data-link, and lock-on to the target at any convenient moment. It was even possible to control the weapon from a different aircraft than that which launched the Walleye, and because of the limited number of data-link pods available, it was actually standard practice for one pod-equipped aircraft to guide Walleyes dropped by several attack aircraft (not simultaneously, though). To use the beyond-visual-range capability to full effect, ERDL Walleyes were usually dropped from high altitude which led to glide ranges of up to 60000 m (65000 yd) for the Walleye II. The Walleye II ERDL also had slightly larger wings than the standard Walleye II. The initial production variants in 1975 were the MK 21 Walleye I ERDL and MK 23 Walleye II ERDL. These versions used a MK 46 guidance section and a MK 159 control section. The MK 22 was a Walleye I ERDL variant, which replaced these components with MK 53 and MK 165 guidance and control sections, respectively. I haven't found any reference to a Walleye MK 24, but it seems plausible that this nomenclature was reserved for a Walleye II ERDL variant with the MK 22's components. Production of the ERDL Walleyes ended in 1976, but in the late 1970s, around 1400 Walleye Is and 2400 Walleye IIs were converted to ERDL variants. The Walleye ERDL Trainer MK 27 was an inert training missile for both ERDL variants (MODs 3,4,5 were of Walleye II configuration) and was used for ground handling and captive-carry flight training.
I trained on several MKs of this weapon, so I am familiar with this guidance option. See all the data and all the versions of the walleye at the following URL:
http://www.designation-systems.net/dusrm/m-62.html
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