And the time to double oscillations is what drive the level stability of the FCS. You want that time to remain in a certain range and give more or less control authority depending if you are outside that margin.
In other words, if you time to double the amplitude is low, your control surface will be more restricted in travel to prevent an unexpected departure than otherwise or the plane admissible AoA will be caped at a lower value. The “how Low” is dependent of the airframe and flight range.

Israel explains Arrow intercept of Syrian SAM

– Indeed the Arrow intercepted a Sa5 on a ballistic trajectory launched after a flight of F15I
– The SAM self destruct device had probably failed
– Arrow engaged the missile after it entered a ballistic trajectory identifying it as a threat
– Ehud Barack, former Israeli Prime Minister and Defense Minister , launched the polemic about the use of a ballistic defense missile system on a simple SAM (but Sa5 missiles are huge)

This post comes to supplement post 2860

Source:
DefenseNews.com

As it turns out, though, those [airplane] contrails “create long-lasting, and sometimes extensive, clouds that would not normally form in the atmosphere, and are believed to be a factor in influencing Earth’s environment,” according to NASA. And a major driver of those contrails is soot emissions, which often come from fossil fuels.

” … The observed particle reductions we’ve measured during [this study] should directly translate into reduced ice crystal concentrations in contrails, which in turn should help minimize their impact on Earth’s environment,” said Bruce Anderson, ACCESS project scientist at NASA’s Langley Research Center in Hampton, Virginia.

Planes that participated in the study used a 50-50 blend of traditional aviation fuel and a renewable alternative biofuel. “This was the first time we have quantified the amount of soot particles emitted by jet engines while burning a 50-50 blend of biofuel in flight,” said Rich Moore, lead author of the Nature report.

Source:
Yahoo.com

With both photonics and GaN , radar detection range will certainly improved alot. However, i don’t see those technology as the death to stealth. In fact, they make stealth become even more important given that technologies like GaN can easily be implemented on jammers which synergy signifiantly better with a low RCS assets. Longer radar detection range also help stealth aircraft deal with threat from optical sensor much easier.

Cost also. With a lot of different platforms now in need of radar fielding a high level of specific performance, photonics technologies will cut the cost of development and adaptation. You’ll have a more robust architecture than can be arranged without the need to costly customized signal amplifiers for example.

There were plenty of sources dating back to Friday, March 17 including CNN, BBC and Fox. Moreover the Israelis themselves released a statement on Friday confirming the raid and the Arrow missile incident that followed.

It was even on Keypub that same day 😉

Moretti out, replaced by Italian banking exec

“Moretti did an excellent job increasing efficiencies but a manager with international experience is now needed to build global business,” said the spokesman at the Italian finance ministry, which holds the controlling share in Leonardo. “It’s true Profumo’s experience is mainly financial but he did lead Unicredit to becoming one of the few really international banks in Europe.”

Source:
DefenseNews.com

It’s more an incentive for their industry. The kind of story like yesterday Sa5 (?) falling down on Israeli territory will certainly blow some cold into that.
But notice that Pr Trump nominated a former Boeing CEO.