The ST-25 was part of a progressive development of twin-engine monoplanes by General Aircraft in Britain in the 1920’s and 30’s. The ST-25 was a twin-engined monoplane with fixed landing gear and first flew in 1935. It was named “Jubilee” in honor of King George V’s Silver Jubilee in 1935. Thirty were built. The fourth passenger seat at the rear of the cabin could be folded and used for additional cargo space instead.
The ST-25 burns 6.4 gallons of fuel per hour at routine usage.
Subassemblies: Heavy Fighter chassis +3, Heavy Fighter Wings
+2, 2¥Small Weapon engine pods 1-2 +1, three fixed wheels +0
P&P: 2¥71-kW aerial HP gas engines with 2¥71-kW
old prop [Pods 1–2] and 63-gallon tanks [Wings]
Occ: 1 CS, 4 PS Cargo: 2.9 Body
| Armor | F | R/L | B | T | U |
| All | 2/2C | 2/2C | 2/2 | 2/2C | 2/2C |
Equipment
Body: Medium radio receiver and transmitter, navigation instruments,
autopilot.
Statistics
| Size: 25'x40'x8' | Payload: 0.49 tons | Lwt: 1.43 tons |
| Volume: 224 | Maint.: 72 hours | Price: $7,600 |
HT: 12
HP: 130 [body], 40 [each wing], 13 [each wheel], 23 [each Pod]
| aSpeed: 131 | aAccel: 2 | aDecel: 29 | aMR: 5 | aSR: 2 | |
| Stall: 53 mph |
Design Notes
Design aSpeed is 133 mph; the historical speed, as well as actual wing
area (217 sf), has been used. The cost, weight and HPs of the chassis,
wings, and pods were divided by two to lower overall weight. Even so, loaded
weight was reduced by a further 12% to match historical weight.
Variants
The Universal (1936) was identical in game terms, but replaced the
single tailfin with twin rudders to improve instability in case of the
loss of an engine. Twenty-nine were built.