I don't know about you, but I find that cover by Howard V. Brown intriguing. Scans of this issue are available on-line. I may have to see if I can find time to read it. The line-up of authors is certainly a strong one: Murray Leinster, Jack Williamson, Arthur J. Burks, Harl Vincent, Wallace West, Robert H. Leitfred, Desmond Hall (writing as Ainslee Jenkins), and a couple of lesser-known authors, Stuart Jackson and Holloway Horn. You can find a PDF of this issue here.
Nice, colorful cover by William F. Soare on this issue of SHORT STORIES, and a really fine group of writers inside: H. Bedford-Jones, William MacLeod Raine, Frederick C. Painton, Robert H. Leitfred, R.V. Gery, Captain Dingle, H.S.M. Kemp, and a couple I've not heard of, Patrick O'Keeffe and O.A. Robertson. That Bedford-Jones story is part one of a serial, and I like the title: "The Hour of the Eclipse". I don't recall that one being reprinted, at least not under that title. I'm intrigued.
There's a nice dynamic cover by Rudolph Belarski on this issue of ACES. I haven't read a great deal from the aviation pulps, and I'm not sure why not. I always enjoy them when I do. This issue has just three stories, all of them novella length, by George Bruce, Joel Townsley Rogers, and Robert H. Leitfred, all well-regarded pulpsters, so I'm sure it was a pretty entertaining issue.
I was in the mood for an aviation pulp cover this morning, and I picked this one by George Rozen from WAR BIRDS because I don't recall seeing many observation balloons on pulp covers. Also there are some good writers in this issue, including William E. Barrett, Robert J. Hogan, Robert H. Leitfred, and one better remembered for his excellent Westerns, Allan R. Bosworth.