Welcome to the forum, Salman. You may have noticed that I have posted a few contributions to this thread, as the history of Sharjah has interested me since I first discovered it when I was working in Al Ain between 2000 and 2004. I have written a bit about the Al Mahatta museum and its contents. Maybe you would like to look at my page:
rafsharjah,almahattamuseum - lgarey
I have also more recently been investigating the crash of a Wellington in 1943 soon after it left Sharjah en route to Karachi.
RAF Wellington Crash, Dhadnah, 1943 - lgarey
And also the story of the 8 Squadron Venom based at Sharjah in 1958, which crashed on the Saiq plateau in the Jebel Akhdar range (and is still there).
The Jebel Akhdar War - lgarey
There are a lot of people on this thread who flew from Sharjah and various strips around the UAE and Oman. In fact I am still investigating some of them of which there are still traces.
I find your descriptions of remnants still at Al Mahatta very interesting, and would like to keep in contact with you about your finds.
Laurence