It is the first time RAF Museum Cosford has opened to the public this year, after going into lockdown in December.
Barry Smith, Director for Commercial Development, told Forces News: "We're so excited about being able to open our doors after so long.
"This is the third time we will be reopening and it's been such a disruption.
"We're here for the public and things just really aren't the same when our doors aren't open."
All of RAF Cosford's hangars are open and the museum has even added new attractions.
"We're really pleased to see how our new children's play area goes," said Mr Smith. "Particularly at half term when we should have lots of families here."
One visitor said: "It's a lovely museum in our local area and it just feels like so long since we've been able to come.
"It's actually my little boy's first outing to anywhere as he's been in lockdown most of his life."
Another said it's "amazing" to be at the museum, adding: "I just feel as if we're slowly getting back to normal."
Mr Smith told Forces News the pandemic has put "huge financial pressure" on the museum sector, especially as a lot of income comes from visitors.
"The museum's been really lucky in that it's had some really good financial support from some of the bodies that finance us," he said.
"So, even though it's been really very difficult, we haven't had to make really difficult decisions to get through it," he said.