Differences between the FuG16 Z and FuG16 ZY?

[harrison987]

What is the difference between the FuG16Z and FuG16ZY ???

The early Me109 Parts list shows the FuG 16Z with the Ad18 for control in the cckpit...

But...the later parts list shows the FuG16Z with the Ad18 Y for control in the cocpit...

What is the difference?

TIA

[Funksammler]

The Z in FuG 16 Z stands for "Zielflug" or Directional flight. This means that with a DF addaptor (the ZVG 16), the receiver could be used to fly in the direction of a beacon.

When the FuG 16 Z was introduced in 1941, Kammhuber asked if the Fug 16 Z could be used for the so called "Y- jagd Verfahren" or Y fighter system. The Y-system is essentially a transponder system in which a ground station sends out a pulse which is received by the aircraft. The Aircraft resends this pulse on a different frequency allowing the ground station to determine the direction and distance of the aircraft.

From this request, the FuG 16 ZE was developed with "ZE" standing for "Zielflug Entfernung" or Directional flight / Distance. Because of difficulties making this system work in the FuG 16, the Directional flight capability could not be maintained, the ZE could only be used for the "Y-jagd Verfahren"; the "Z" function was disabled.

Further development work led to a version of the FuG 16 in which the Directional flight capability was reinstated, this became the FuG 16 ZY. This is also the final version of the FuG 16. "ZY" stands for Zielflug Ypsilon or Directional Flight / Ypsilon and it was capable of both Directional flight and the Y-system.

Whereas the Fug 16 and 16 Z used the AD 18, which has a switch to operate the "Fern/Nah" relais, the FuG 16 ZY used the AD 18 Y and AD 18 Ya. The AD 18 Y was for installation in larger aircraft such as the Ju 88, the AD 18 Ya was used in single seater fighters. In the AD 18 Ya the switch was used for switching between normal tranceiver mode, and DF or Y-system mode. Internally the different versions of the AD 18 box are identical, just the lettering on the lid are different.

regards,

Funksammler

[harrison987]

Ah perfect!!!!

My second question was going to be if the Ad18 and Ad18Ya were the same internally...and you answered that in your reply...

Sounds like they are...

Thanks!

Mike