-
Join the MyBroadband community
South Africa’s biggest forum. Discuss, discover, and connect with thousands of members.
-
Question of the Day: Are you keeping your Prime subscription?
The F-35 thread
- Thread starter snoopdoggydog
- Start date
Dave
Honorary Master
ISIS
Currantly
Expert Member
- Joined
- Dec 24, 2014
- Messages
- 2,753
- Reaction score
- 2,451
Dave
Honorary Master
Wut
Executive Member
Our company's drones. We were contracted to do ground penetrating radar surveys for a highway project.
Dave
Honorary Master
Wut
Executive Member
Closer to the Mohajer-6 but with VTOL capabilities
Dave
Honorary Master
Wut
Executive Member
I definitely hope so at R200K+ without the payload. Scratch that! We definitely want them both back
But back on topic. Eyeball Mark One today on the camera footage confirmed the radar readings were F-22s and not F-35s. Pretty freaken cool knowing that they were buzzing us.
Dave
Honorary Master
Slightly different translation, at least the Chinese have discovered they shouldn't be believing their planes are on the same level.
You got a radar return on an F-22 on a commercial drone?I definitely hope so at R200K+ without the payload. Scratch that! We definitely want them both back
But back on topic. Eyeball Mark One today on the camera footage confirmed the radar readings were F-22s and not F-35s. Pretty freaken cool knowing that they were buzzing us.
Wut
Executive Member
No, from our radar base station. We have to use our own radar system when operating in dangerous airspace out of line of sight as part of our compliance requirements. We found that an F-22 has a radar signature slightly larger than a largish bird (like an eagle), but it's easy enough to track as it's a bit weird seeing a bird doing 500+ knots
We could write a script to auto-identify F-22s for the future if we plan to work in the same airspace they are operating in.
Dave
Honorary Master
Are you sure it was an F-22? Or perhaps flying with Luneburg lenses fitted?
Radar cross section: The measure of stealth - Military Embedded Systems
WARFARE EVOLUTION BLOG: The primary measure of stealth, or low observability (LO), is the radar cross section (RCS) of the target, whether it?s aircraft, missiles, or ships. The radar pulse goes out from the transmitter, hits the target, and bounces back. The radar receiver measures the energy...
militaryembedded.com
The B-2 bomber has an RCS of 0.0001m2, the same as the F-22, the size of a bumble bee. The new B-21 bomber, now being built by Northrop Grumman, is virtually invisible to UHF/VHF radar. It shows up about the size of a mosquito.
Lockheed Martin F-22 Raptor - Wikipedia
While the F-22's exact RCS is classified, in 2009 Lockheed Martin released information indicating that from certain angles the airplane has an RCS of 0.0001 m2 or −40 dBsm – equivalent to the radar reflection of a "steel marble"
Wut
Executive Member
Absolutely sure, we have the footage to confirm.Are you sure it was an F-22? Or perhaps flying with Luneburg lenses fitted?
Radar cross section: The measure of stealth - Military Embedded Systems
WARFARE EVOLUTION BLOG: The primary measure of stealth, or low observability (LO), is the radar cross section (RCS) of the target, whether it?s aircraft, missiles, or ships. The radar pulse goes out from the transmitter, hits the target, and bounces back. The radar receiver measures the energy...
The B-2 bomber has an RCS of 0.0001m2, the same as the F-22, the size of a bumble bee. The new B-21 bomber, now being built by Northrop Grumman, is virtually invisible to UHF/VHF radar. It shows up about the size of a mosquito.
Lockheed Martin F-22 Raptor - Wikipedia
en.m.wikipedia.org
While the F-22's exact RCS is classified, in 2009 Lockheed Martin released information indicating that from certain angles the airplane has an RCS of 0.0001 m2 or −40 dBsm – equivalent to the radar reflection of a "steel marble"
From you own post it varies with angles and that small RCS is from very particular angles it seems.
Our ground radar station was approximately 40 miles from our drone at the time and the F-22s flew from east to west to intercept and then returned to their original positions in the east. Perhaps we were able to track them because of the angle of our ground station.
Blu82
Honorary Master
- Joined
- Nov 15, 2005
- Messages
- 13,007
- Reaction score
- 19,869
As @Dave said they might have been using Luneberg lenses since keeping your exact RCS signature away from all the Russian and @Wut systems around Syria might be a good idea. Or the F-22 RCS sucks in the frequency band you were using for the Radar.
How Luneburg lens radar reflectors are used to make stealth aircraft visible on radar screens - The Aviation Geek Club
How Luneburg lens radar reflectors are used to make stealth aircraft visible on radar screens
theaviationgeekclub.com
Wut
Executive Member
I'm going to check the footage slowly this evening to see if I can spot the Luneberg lenses underneath them.As @Dave said they might have been using Luneberg lenses since keeping your exact RCS signature away from all the Russian and @Wut systems around Syria might be a good idea. Or the F-22 RCS sucks in the frequency band you were using for the Radar.
How Luneburg lens radar reflectors are used to make stealth aircraft visible on radar screens - The Aviation Geek Club
How Luneburg lens radar reflectors are used to make stealth aircraft visible on radar screens
I got to see two of them up close during an airshow recently. All other planes you could go inside etc, but these were heavily guarded with 2 quadrants of 4-riflemen...you'll also notice they had hot wings with 1 stinger each - and we saw them head back to their base after the show was done.
Wut
Executive Member
You hit the nail on the head in one aspect there. I can't post details as it's being investigatedAs @Dave said they might have been using Luneberg lenses since keeping your exact RCS signature away from all the Russian and @Wut systems around Syria might be a good idea. Or the F-22 RCS sucks in the frequency band you were using for the Radar.
How Luneburg lens radar reflectors are used to make stealth aircraft visible on radar screens - The Aviation Geek Club
How Luneburg lens radar reflectors are used to make stealth aircraft visible on radar screens
