The army have ordered six Hermes 900 HFEs to monitor the country's borders.
Keystone / Georgios Kefalas
An Israeli investigation into last year’s crash of a drone ordered by the Swiss army has found that the cause was a structural design flaw which has since been fixed.
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The Hermes 900 HFE unmanned aircraft crashed during a test flight last August in the Israeli desert, where it was completely destroyed. No injuries or collateral damage were reported.
According to the Swiss army, the drone manufacturer, Elbit systems, has since concluded its investigation, and rectified the structural problem that caused the tail unit to become detached from the body of the drone.
During a high-speed manoeuvre, the investigation found, with the drone flying close to its “symmetric-flutter boundary”, severe structural oscillations led in “a very short period and aggressive process” to the tail unit coming detached, and then the crash.
The problem has since been resolved, without any large scale design changes, and the damages paid for completely by Elbit, the Swiss army said.
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Israeli drone ordered by Swiss army crashes during test flight
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A Hermes 900 HFE drone intended for the Swiss army crashed in the Israeli desert on Wednesday during a test flight.
The drone was one of six ordered by the army in 2016, at a cost of CHF250 million (around $256 million at the time). The delivery date is now likely to be mid-2022 at the earliest, three years later than initially planned.
According to the army statement, the delays are mainly due to a difficult certification process with Israel’s civil aviation authorities, as well as to a slower than expected development of a “sense-and-avoid” radar system to be fitted to the drones. Covid-19 also “disrupted industry and severely limited cooperation with the supplier due to travel restrictions and quarantine requirements”, the army wrote.
The six unmanned aircraft are expected to be used to monitor Switzerland’s borders and help in the fight against crime tourism, irregular migration and organised smuggling.
The army’s former Ranger drones, which had been in use for 20 years, have already reached the end of their lifespan; as a result, until the new drones are up and running, the army is using helicopters to monitor the borders.
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Alternative to the Gripen: new drones from Israel?
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The Swiss government is looking to renew its fleet of drones and deciding which models to acquire. The “Hermes 900” and “Heron 1” are the two under scrutiny, both produced by Israeli companies. Switzerland may buy six such drones for a total price of CHF250 million. Switzerland needs surveillance drones, not armed drones, to support…
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On Monday, the Senate voted for the purchase of six unarmed Hermes 900 drones (30 votes for, 12 against), which followed earlier approval by the House of Representatives. Campaigners had criticised the deal with Israeli company Elbit Systems, urging Switzerland not to invest in Israel’s military complex due to its “systematic human rights abuses” against…
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