The massive main landing gear of an airliner, sketched at @Bristol. The wheels are about 5 foot high and it has an ‘articulating bogie unit’, hmmm… I spent 5 minutes marking the key lines in pencil to get the perspective right, but didn’t have time to draw all the intricate wires, cables, pistons, etc; should have done some greebling.
Pencil, fountain pen and water-brush with Lexington grey ink, white Lumocolor pencil, watercolour, A5 – 30 minutes
Mostly drawing 
It looks immense, all the fiddly bits, would have been just fiddly to see. It’s great.
Thanks Rufus, it’s easier without!