There is a reference to the T4M in the book "United States Navy Aircraft
Since 1911" (Gordon Swanbourough and Peter M Bowers) pages 347- 350.
Includes a couple of pictures and a general arrangement 3 view drawing.
Also known as the Great Lakes TG-2 after Great Lakes acquired the Martin
Cleveland factory.

Jack


"BomberODavid" wrote in message
...
Hi All -

My Grandfather flew this 3-seat Torpedo bomber in the late 20's / early
30's.
His logbooks have signitures by Lt. Halsey and Lt. Waldron! T4M's
remainded in
service into the early 40's.

Does anyone know of an intact T4M, or parts, or plans? The NavAir Museum
in
Pensacola has only a copy of an old magazine article.

Regards,

David O'Donoghue
Long Beach, CA