I can’t take credit for this but hear me out. USPS LLV with wings and we call it the ”MailCat”. Grumman made all kinds of really cool planes, hellcat, wildcat, tomcat, ag-cat(it’s a thing, really), and more. They also make the quintessential mail truck that we all know and love. It’s a deathtrap for those that have to operate it over 45 mph (and thats pushing it for basic safety), but hot diggity, that would take “Air Mail” to a whole new level. Side note, growing up, my bff and i also had an aluminum canoe made by Grumman. she was a sturdy vessel. We named her Canuck. Many a fish were caught from her. She survived a couple explosions…. Many fish. Many, many fish.