After doing some research I found that torpedo planes did in fact exist as early as 1918 in the form of float planes. By 1921 they could be launched off of carriers. As far as I can tell only the british had this technology so it dosn't seem as far fetched as we all think. As a result here is my naval airforce.
Planes in the AFAA consist of the following:
Spartan F2 "Falcon" Type:land based naval Fighter.
Armament:2x .303"mg, 75lb bomb load
Engine:240 hp roth "viper"
Speed:110mph/180km
Span: 28ft/8.9m
Length:18ft/5.7m
weight:1830lb/840kg
Notes: originally designed for the airforce in 1917 as the "Whirlwind" modified for use aboard carriers with less than satisfactory results more as a result of the carrier recovery methods used rather than due to performance. Relegated to land based squadrons with the introduction of the seahawk.
Ripon F5 "Seahawk" Type: carrierborn and land based Fighter.
Armament:2x .303"mg, 120lb bomb load
Engine:250 hp roth "Lance"
Speed:121mph/195km
Span: 30ft/9.1m
Length:19ft/6m
weight:2020lb/916kg
Notes: Designed in 1918 the Seahawk replaced the Falcon in 1919 and showed considerable improvements over the falcon. Currently serving aboard the ANS Siboney and Evanor as well as with several land based squadrons.
Spartan T1 "Griffon" Type:land based torpedo bomber, float plane.
Armament:1x .303"mg, 1x18"torpedo or 1200 lbs of bombs.
Engine:200 hp Salmson"comet"
Speed:105mph/165km
Span: 46ft/14.2m
Length:28ft/8.6m
weight:3860lb/1760kg
Notes: Designed in 1917 originally as a floatplane capable of attacking enemy shiping, attempts to launch her off of ships proved somewhat successfull but they proved more suitable to their originally intended role. They also equip land based squadrons.
Spartan T2 "Condor" Type:carrierborn torpedo bomber, float plane.
Armament:1x .303"mg, 1x18"torpedo or 1800 lbs of bombs.
Engine:275 hp Roth "Arrow"
Speed:102mph/163km
Span: 52ft/16m
Length:36ft/11.2m
weight:5700lb/2885kg with torpedo
Notes: designed in 1918 with the intent to improve on the Griffon design as well as to be more effective against enemy shiping the Condor can carry a torpedo with nearly double the leathality but at the expense of some agility and speed.
Currently Atlantis is developing an impoved version of the Condor that improves on speed and agility lost in the redesign of the griffon. Atlantis is also developing an entirely new torpedo bomber to meet the current desired specifications of the fleet air arm.