hi guys.
just thought that in comparison it would be interesting to see the B777 performance figures. here they are for a B777-200ER with GE90-90.
JNB 03L, 20°C, 1013, no wind:
MTOM 269.290 kgs (Brake Energy limit) V1 162, Vr 172, V2 176;
at 30°C:
MTOM 255.250 kgs (Field limit), 163, 170, 174
hope that was good info. that is packs off and optimum v1.
i myself have never operated into jnb, so its just off the computer. keep in mind that approximate ZFM of the 777 is around 145 to 147 t. would be interesting to see how that figure compares with the 340, to find out the payload capability.