Grumman F9F Panther - Wikipedia
![](https://upload.wikimedia.org/wikipedia/commons/3/3a/Grumman_F9F-2_Panther_of_VF-112_in_flight%2C_circa_in_1951_%281564-78%29.jpg)
![](https://media.abpic.co.uk/pictures/full_size_0246/1370655-large.jpg)
Grumman F9F-2 Panther, 123557, VFW Post 1621 : ABPic
What was the reason for the lack of modern fighter jets during World War II, despite the fact that they had already been invented by that point? Was it due to cost
![](https://www.aerialvisuals.ca/Airframe/Gallery/0/1/0000001831.jpg)
Aerial Visuals - Airframe Dossier - Grumman F9F-2B Panther, s/n 123078 USN, c/n 123078, c/r N9525A
![](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/F9F_VF-71_over_TF77_1952.jpeg/1200px-F9F_VF-71_over_TF77_1952.jpeg)
Grumman F9F – Wikipedia
![](https://fullfatthings-keyaero.b-cdn.net/sites/keyaero/files/styles/article_body/public/imported/2019-06-26/img_68-2_2.jpg?itok=m-lJ0rRe)
Sharpening its Claws
Had the US developed and deployed a jet fighter by the end of WW2? - Quora
![](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Grumman_G-75_%28XF9F-1%29_mfr_891062-3_%28GHC_via_RJF%29_%2818356559201%29.jpg/220px-Grumman_G-75_%28XF9F-1%29_mfr_891062-3_%28GHC_via_RJF%29_%2818356559201%29.jpg)
Grumman F9F Panther - Wikipedia
Grumman F9F Panther – Seznam.cz
Had the US developed and deployed a jet fighter by the end of WW2? - Quora