ACCESS: Above Top Secret
- Jun 6, 2006
- Reaction score
PW1120 was probably less fuel efficient than the F100 as the fan was cut down and it was a lower bypass ratio.
That's what I vaguely remember, too, from my Fana de l'aviation readings... the PW1120 was a heavier, more rugged, less efficient variant of F110. Kind of big brute of engine, not very refined. At the beginning Israel probably wanted a F404 and some kind of Grippen LWF, but the Lavi soon took a different path. By contrast a big and powerful engine make sense with Zen suggestion
Really big drop tanks.....and lots of them.
The minus was the drag increases and pylons taken up....along with the hidden G-Limits.
But come the need to could jettison that lot and return to a clean fighter.
Either you're nimble & lightweight with a small engine (F404) or you go powerful to drag a lot of external tanks and drop that to go into air defence mode.
Just ask the Swedes - Viggen to Grippen.
In this context the Lavi is closer from the Viggen, another massive aircraft with a powerful engine. And just like it, it can go J- (air defence) or AJ (ground attack with a boatload of A2G ordonance and drop tanks).