|First flight||Dec 1917 |
|Wingspan||23.0 m (75 ft 6 in)|
|Armament||front flexible machine gun|
4 Corpet Lance bombs 
|Max Speed||148 km/h (92 mph)[note 1]|
|Climb||500 m (1,640 ft) in 4:15|
3,000 ft (910 m) in 7:30
1,000 m (3,280 ft) in 8:27
2,000 m (6,560 ft) in 19:13-35:00
While the Tellier T.3 was a fine flying boat, Aviation Maritime desired a plane with a heavier payload. The Tellier T.4 was a T.3 with a strengthened hull with an enhanced profile and provisions to mount a 350hp Sunbeam engine. After the prototype was completed, a new requirement for folding wings arrived, which delayed the T.4 further. Eventually they replaced the T.3's in use in naval bases on the Atlantic and Africa. 
While the original specification called for the plane to carry a useful load of 1,000 kg (2,200 lb), by the end of trials and tuning the T.4 was enhanced to carry a load of 1,600 kg (3,595 lb). Once trials had ended, it was ordered into production without any further changes. The RNAS evaluated the T.4 but decided to stick with Felixstowe flying boats.
- 130 km/h (81 mph) cruising speed.
- Davilla, p.532.
- Nowarra, p.136.
- Nowarra, pp.204-205.
- Dr. James J. Davilla and Arthur M. Soltan. French Aircraft of the First World War. Flying Machines Press, 1997. ISBN 0-9637110-4-0.
- Heinz J. Nowarra, Bruce Robertson, and Peter G. Cooksley. Marine Aircraft of the 1914-1918 War. Letchworth, Herts, England: Harleyford Publications Limited, 1966. ISBN 0900435070