Little Dragon here are some pics of the 1st German Jet

Is that the ME262?

the ME262, with the wings swept back only 18.5 degrees. front attachment is radar/radio antennas. These things had very slow acceleration, no afterburners. They had a flight time of only 60 - 90 miutes. They also made a 2 seater for night time radar flights.

What is the device on the front of the plane on the bottom right? looks like some sort of antenna, or the beginning of radar maybe?

dear mike san, hai this is the first operational jet and even though it hard to see in these picture, and the line of the wing is broken on each side by engine nacelle the wing was indeed swept. the Heinkel Blitz had standard straight wing if recall correct and also both the British and American prototype jets also had straight wing. ryo need to check this to make sure, but already am pretty sure.

Your friend,

LittleDragon

for maintenance work. configuration of radar antennae for standard Nazi night fighter not look that. interesting to note also that chromium was very rare in germany during war and so could not line combustion chamber and pressure turbine with this material, so these Jumo engines were only good for 10 hour of flight time before need replacement. also if look closely can see little ring where one cable is thread through on fuselage. also if look at nose of other picture in serie, these are not shown. however black part of device could be radar although this not look like the normal radar antennae of usual Nazi night fighter.

Your friend,

LittleDragon

I admit I don't know what that is. It's the first picture of that set up I've ever seen. I will have to do some research as well. Thank you.
ps wikipedia seems to have a lot of details, I'm reading right now

My great grandfather that passed not too long ago actually fought in World War II