Go Back   DefenceTalk Forum - Military & Defense Forums > Global Defense & Military > Space & Defense Technology

Defense News
Land, Air & Naval Forces






Military Photos
Latest Military Pictures
Defense Reports
Aerospace & Defence


aviation developments

This is a discussion on aviation developments within the Space & Defense Technology forum, part of the Global Defense & Military category; this one is important from the issue of future flying bearer and flying array capabilities Jet fuel-powered UAV completes record ...


Reply
 
LinkBack Thread Tools Rate Thread
Old January 9th, 2017   #1
Grumpy Old Man
General
gf0012-aust's Avatar
Join Date: Dec 2003
Location: Australia
Posts: 17,997
Threads:
aviation developments

this one is important from the issue of future flying bearer and flying array capabilities

Jet fuel-powered UAV completes record 56-hour flight, with plenty left in the tank
________________
A corollary of Finagle's Law, similar to Occam's Razor, says:

"Never attribute to malice that which can be adequately explained by stupidity"
http://au.linkedin.com/pub/gary-fairlie/1/28a/2a2
http://cofda.wordpress.com/

gf a.k.a. ROBOPIMP T5C
gf0012-aust is offline   Reply With Quote
Old January 9th, 2017   #2
Defense Professional / Analyst
Brigadier General
ASSAIL's Avatar
Join Date: Nov 2011
Location: Darwin NT Australia
Posts: 1,933
Threads:
In its current iteration it would be fantastic for a loiter ops but seems a bit slow for BAMS work, at 75kts coverage is limited.
I'm sure that these early developments will mature into very useful military application.
Excuse the pun but...the sky's the limit.
ASSAIL is offline   Reply With Quote
Old January 9th, 2017   #3
Moderator
General
ngatimozart's Avatar
Join Date: Feb 2010
Location: Christchurch, New Zealand
Posts: 4,123
Threads:
Something else to see the light of day. Swarming Perdix UAVs; swarming micro UAVs, has a hive mind, deployable from fighter decoy dispensers and able to get in close.
________________
The Rules - read them. Ignorance of them is not an excuse.
The Introduction thread for new members to tell the rest of us something about you.
ngatimozart is offline   Reply With Quote
Old January 10th, 2017   #4
Grumpy Old Man
General
gf0012-aust's Avatar
Join Date: Dec 2003
Location: Australia
Posts: 17,997
Threads:
one of the advantages if this tech is that due to persistence they could form the basis of a flying comms bearer - your own theatre portable bearer grid
________________
A corollary of Finagle's Law, similar to Occam's Razor, says:

"Never attribute to malice that which can be adequately explained by stupidity"
http://au.linkedin.com/pub/gary-fairlie/1/28a/2a2
http://cofda.wordpress.com/

gf a.k.a. ROBOPIMP T5C
gf0012-aust is offline   Reply With Quote
Old January 10th, 2017   #5
Defense Enthusiast
Chief Warrant Officer
No Avatar
Join Date: Jul 2014
Location: terra
Posts: 435
Threads:
Looks like a quick and affordable way to set up and sustain a battlefield internet on the fly. A similar benefit for disaster relief scenarios as well.
colay1 is offline   Reply With Quote
Old January 20th, 2017   #6
Grumpy Old Man
General
gf0012-aust's Avatar
Join Date: Dec 2003
Location: Australia
Posts: 17,997
Threads:
https://www.engadget.com/2017/01/19/...conomic-forum/

I like the dutch solution.. the RAAF could use real wedgetails
________________
A corollary of Finagle's Law, similar to Occam's Razor, says:

"Never attribute to malice that which can be adequately explained by stupidity"
http://au.linkedin.com/pub/gary-fairlie/1/28a/2a2
http://cofda.wordpress.com/

gf a.k.a. ROBOPIMP T5C
gf0012-aust is offline   Reply With Quote
Old January 20th, 2017   #7
Defense Aficionado
Major General
John Fedup's Avatar
Join Date: Sep 2013
Location: Vancouver
Posts: 2,179
Threads:
Quote:
Originally Posted by gf0012-aust View Post
https://www.engadget.com/2017/01/19/...conomic-forum/

I like the dutch solution.. the RAAF could use real wedgetails
Works for me but the animal rights lobby here would likely kill this great idea.😂
John Fedup is offline   Reply With Quote
Old January 20th, 2017   #8
Defense Enthusiast
Chief Warrant Officer
No Avatar
Join Date: Jul 2014
Location: terra
Posts: 435
Threads:
That anti-drone gun wouldn't appear to be effective against the kind of autonomous swarms eg. PERDIX, LOCUST recently demonstrated by he US Navy. So what kind of bug spray would be best at dealing with such a threat? Perhaps some sort of EMP weapon that would somehow spare one's own equupment?
colay1 is offline   Reply With Quote
Old January 20th, 2017   #9
Grumpy Old Man
General
gf0012-aust's Avatar
Join Date: Dec 2003
Location: Australia
Posts: 17,997
Threads:
Quote:
Originally Posted by colay1 View Post
That anti-drone gun wouldn't appear to be effective against the kind of autonomous swarms eg. PERDIX, LOCUST recently demonstrated by he US Navy.
that's the punchline and the unknown

ages ago I worked on some tech for narrow beam and directional EMP weapons to disable a targeted vehicle, ultimately that becomes a viable weapon for any air threat - but look at the way this handheld weapon works - it opens up some interesting other opportunities

the variant is also in rough terms a variation of "kill or capture" against the UAS. The intent here is to capture or control - killing a UAS starts to bring in tech such as what the Israelis have.
________________
A corollary of Finagle's Law, similar to Occam's Razor, says:

"Never attribute to malice that which can be adequately explained by stupidity"
http://au.linkedin.com/pub/gary-fairlie/1/28a/2a2
http://cofda.wordpress.com/

gf a.k.a. ROBOPIMP T5C
gf0012-aust is offline   Reply With Quote
Old January 26th, 2017   #10
Defense Enthusiast
Corporal
No Avatar
Join Date: Aug 2009
Posts: 160
Threads:
I have a question on fast jet canopies. How hot do they get during high speed flights? I'm interested for the following reason. Aircraft like F-22 have their canopies coated with a cake of transparent thin films some of which are electrical conductors, serving multiple purposes such as charge build up dissipation and radiation reflection. I have some ideas on such coating technologies that may be of use for this purpose (cheaper, high throughput, high quality in comparison to the traditional methods that are likely utilized in production of these). The one requirement for this to work that may be difficult to overcome is the temperature that the surface needs to be exposed to during the coating process.
Most polymers (which is what the canopies are mostly made of) do not like excessive temperatures. So what temperatures are we looking at, during high speed flight?
Thank you.
PhysicsMan is offline   Reply With Quote
Old January 26th, 2017   #11
Grumpy Old Man
General
gf0012-aust's Avatar
Join Date: Dec 2003
Location: Australia
Posts: 17,997
Threads:
Quote:
Originally Posted by PhysicsMan View Post
I have a question on fast jet canopies. How hot do they get during high speed flights? I'm interested for the following reason. Aircraft like F-22 have their canopies coated with a cake of transparent thin films some of which are electrical conductors, serving multiple purposes such as charge build up dissipation and radiation reflection. I have some ideas on such coating technologies that may be of use for this purpose (cheaper, high throughput, high quality in comparison to the traditional methods that are likely utilized in production of these). The one requirement for this to work that may be difficult to overcome is the temperature that the surface needs to be exposed to during the coating process.
Most polymers (which is what the canopies are mostly made of) do not like excessive temperatures. So what temperatures are we looking at, during high speed flight?
Thank you.

coatings on F-22 and JSF are more about sig management and emission. the gold and iridium also doubles up as a heat soaker for friction
________________
A corollary of Finagle's Law, similar to Occam's Razor, says:

"Never attribute to malice that which can be adequately explained by stupidity"
http://au.linkedin.com/pub/gary-fairlie/1/28a/2a2
http://cofda.wordpress.com/

gf a.k.a. ROBOPIMP T5C
gf0012-aust is offline   Reply With Quote
Old January 26th, 2017   #12
Defense Enthusiast
Corporal
No Avatar
Join Date: Aug 2009
Posts: 160
Threads:
Quote:
Originally Posted by gf0012-aust View Post
coatings on F-22 and JSF are more about sig management and emission. the gold and iridium also doubles up as a heat soaker for friction
Radiation reflection is the signal management, isn't it?
PhysicsMan is offline   Reply With Quote
Old January 26th, 2017   #13
Grumpy Old Man
General
gf0012-aust's Avatar
Join Date: Dec 2003
Location: Australia
Posts: 17,997
Threads:
Quote:
Originally Posted by PhysicsMan View Post
Radiation reflection is the signal management, isn't it?

its more than signal/e emission, its also about back scattering physical reflections that could come back from inside the c0ckpit.
________________
A corollary of Finagle's Law, similar to Occam's Razor, says:

"Never attribute to malice that which can be adequately explained by stupidity"
http://au.linkedin.com/pub/gary-fairlie/1/28a/2a2
http://cofda.wordpress.com/

gf a.k.a. ROBOPIMP T5C
gf0012-aust is offline   Reply With Quote
Old January 26th, 2017   #14
Defense Enthusiast
Corporal
No Avatar
Join Date: Aug 2009
Posts: 160
Threads:
Quote:
Originally Posted by gf0012-aust View Post
its more than signal/e emission, its also about back scattering physical reflections that could come back from inside the c0ckpit.
Yes, and there are ways to tune the reflectivity on the inner surface to reduce that backscatter.
But my question is about how much heat the canopy can handle safely before it starts to degrade.
PhysicsMan is offline   Reply With Quote
Old January 26th, 2017   #15
Grumpy Old Man
General
gf0012-aust's Avatar
Join Date: Dec 2003
Location: Australia
Posts: 17,997
Threads:
Quote:
Originally Posted by PhysicsMan View Post
Yes, and there are ways to tune the reflectivity on the inner surface to reduce that backscatter.
But my question is about how much heat the canopy can handle safely before it starts to degrade.
well, its a FRU and replacement is probably found somewhere within the maint manuals

I wouldn't have thought that its actually a regular event - they're designed to survive nearfield explosions - they're designed to survive g forces 4 levels above frame stress alerts - so there's a message in there already
________________
A corollary of Finagle's Law, similar to Occam's Razor, says:

"Never attribute to malice that which can be adequately explained by stupidity"
http://au.linkedin.com/pub/gary-fairlie/1/28a/2a2
http://cofda.wordpress.com/

gf a.k.a. ROBOPIMP T5C
gf0012-aust is offline   Reply With Quote
Reply

Thread Tools
Rate This Thread
Rate This Thread:


All times are GMT -4. The time now is 02:20 AM.