VLO aircraft design and characteristics

eloise · by **eloise** » 27 Jul 2015, 19:08

A while ago, i found a picture a non RAM coated VLO airframe's RCS measurement / calculation using computers software, the picture have alot of detail, it shows the airframe RCS at different frequency, aspect angle.. etc we can even see each spike :mrgreen:

, i posted that picture several time here ( i think some of you seen that), However i wasn't able to confirm the accuracy / validity of the pictures until very recently , turn out, that picture was from a group of aerospace engineer's project for design competition held by AIAA . Their project is actually very detailed, it basically including everything you can think of on a aircraft, and since they are actually professional in the field, i think their analysis and estimation will have very high level of accuracy compare to 90% of speculation that you often read on forums

( i know the aircraft in the project isn't F-22 or F-35 but it still share many similar characteristics, and there are alot of other useful information in the PDF file about supercruise, agility, IR characteristics.... etc) . Anyway i have no idea how to upload the whole pdf here yet , so i will start by upload few pictures from the pdf :mrgreen:

hope you guy enjoy there are alot of information to learn

it interesting to see that, even without any RAM, the aircraft still achieved RCS of around -20 to - 30dBsm at 70-80 degree frontal cone ( when the observation frequency is 10-12 Ghz)

eloise · by **eloise** » 27 Jul 2015, 19:16

there are also very interesting graph show how thrust and TSFC varied with altitude

alright the whole file that i will upload later have alot more, but any way credit are to these people :

eloise · by **eloise** » 28 Jul 2015, 17:25

here is the link to download the file

enjoy
https://www.google.com/url?sa=t&source= ... g7YKN4UL_g

uclass · by **uclass** » 28 Jul 2015, 18:11

Interesting thanks.

eloise · by **eloise** » 28 Jul 2015, 19:52

uclass wrote:Interesting thanks.

glad that you like it :mrgreen:

KamenRiderBlade · by **KamenRiderBlade** » 29 Jul 2015, 22:13

Funny how the hypothetical model looks like a blend of the YF-22 / YF-23

eloise · by **eloise** » 30 Jul 2015, 03:24

KamenRiderBlade wrote:Funny how the hypothetical model looks like a blend of the YF-22 / YF-23

stealth fighter tend to look similar, i guess that because they need to be of certain shape to reduce frontal RCS effectively