Here´s the box -
The J21 just missed not being involved in WW2 and entered service in 1946. Famous for being converted into one of the first jets with a few mods and being one of the first aircraft to boast an ejector seat. Said to be more of a stable gun platform than an acrobat it became a ground attack aircraft armed with bombs and rockets a la Typhoon. Main problem with the type was engine overheating especially on the ground when the wing mounted a la Fury air cooling was of no use.
Pretty typical Heller kit with a bit of detail but plenty of scope for improvement. I intend to do her lid open and add the embarcation ladder which slides out of the fuselage. The slot for this was cut out and the machine gun holes on the nose drilled. I improved the kit seat by adding some wire and a couple of bits of card before adding some pe belts. The IP was a fair fit for a Stuka decal I had over and I also added some bits and bobs scrap pe to add business to the cockpit.
Added some lead to the nose, hope its enough, and joined it up. Sanded up and then scribed back the lost panel lines - this has raised lines but scribing that is not sanded back makes a resonable job of replacing lost detail. I then added the wings which left few gaps - the worst on the underside. I fixed these with my usual Tamiya filler and aceton wipe. The nasty gap was done by masking along the panel lines first and then sanding finely after the acetone treatment and came out pretty well not losing a lot of detail.
The air intakes were a bit weak joining together from the upper and lower wings and this didn´t work to well so I cut them out and inserted plastic card instead. This will be trimmed back and thats as far as I´ve got. I´m waiting on a new airbrush but there is a bit of construction to go so no panic yet!
This was a close one but I was using poly and discovered it just in time to prise them apart, it was close though! I remember doing this to a P38 as a kid and losing the kit 
- traumatic childhood experience. After double checking I then glued the correct halves together and after seam cleaning added the booms to the body - nice fit here - and added the tail plane. Swiped round a tad of Tamys and acetone to blend in the joins and this is where I´m at.
