Not the only way but this is what I do sometimes for a quick and dirty method
Use the Quick Select tool and select the plane. Click Edit in Quick Mask mode
You can now add or remove pixels along the edges, using the black or white brush
Zoom in and soften the edges if you want.
Press Q to make selection then copy the selection then do Layer...New Layer via copy.
You now have the plane on its own layer.
Open another image and select all then copy the selection.
Go back to the original image and do another new layer via copy.
You now have a new image but cannot see the plane. In the layer panel, drag the mask (plane layer) to the top above the new image.
You can now select the plane and move it anywhere you want on the new image.
Like I said Leon, quick and dirty but it works.
Hope it helps.
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