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Rockwell B-1 Lancer

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Mamma mia! Questa è proprio brutta!!! Da ghiacciare il sangue nelle vene...

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Dettagli sull'incidente.

 

https://www.military.com/daily-news/2018/06/19/secaf-reveals-details-b-1-flameout-bomber-stand-down-ends.html

 

A seguito di una segnalazione di un incendio a bordo, come da checklist si è deciso per l'espulsione dell'equipaggio. Fallita quella dei primo dei 4 membri, il pilota istruttore (gli altri 3 erano in training) ha disposto l'annullamento della sequenza di espulsione e ha optato per un atterraggio di emergenza (della serie o tutti o nessuno). Ancora da chiarire perchè il WSO si sia ritrovato seduto su di un..."ordigno innescato", ma gli altri B-1 torneranno in volo in settimana.

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Più leggo i dettagli più rabbrividisco... sangue freddo invidiabile del comandante in primis e di tutto l'equipaggio! Situazione veramente brutta...

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Dal sito dell'AFA ...

B-1s to Return to Flight This Week .....
Air Force Global Strike Command announced Tuesday that its B-1Bs will return to flight this week following a June 7 grounding, which includes bombers deployed to the Middle East, due to an ejection seat issue.
The grounding gave the command time to “thoroughly evaluate the egress components” and assess risk, the command said in a statement.
“We have high confidence that the fleet’s egress systems are capable and the fleet is ready to return to normal flight operations,” Maj. Gen. Thomas Bussiere, commander of 8th Air Force, said in a release (*).
The grounding was announced following a May 1 incident where a B-1 was forced to make an emergency landing at Midland International Air & Space Port in Texas.
Pictures of the aircraft showed an open hatch above the weapons systems officer’s position, which indicates a possible attempt to eject.
That incident is still under investigation.
US Army Col. Sean Ryan, spokesman for Combined Joint Task Force-Operation Inherent Resolve, said he could not comment on military operations when asked Tuesday about the impact of the grounding and the B-1's return to flight.
- Brian Everstine

 

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Ritorno in servizio ... gradualmente ...

Quote

The first B-1B bombers returned to flight this week following a nearly four-week stand-down due to issues with drogue chutes in the aircraft’s ejection seats.
Air Force Global Strike Command said in a Tuesday release (*) that more aircraft are expected to return to flight in the near future as inspections and maintenance are completed, but the command did not say how many aircraft already had returned to flying status.

... airforcemag.com ... B-1B Fleet Returning to Flight After Extended Grounding ...

(*) ... afgsc.af.mil ... AFGSC B-1Bs return to flight ...

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Soltanto SEI ... 😖

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Only six of the Air Force’s 61 B-1 bombers are fully mission-capable, a South Dakota senator said July 30. 
The B-1 fleet is in the midst of an intensive slate of maintenance work and upgrades. 
Of the 61 jets, 15 are in depot maintenance and 39 aircraft are down for inspections or other issues, Sen. Mike Rounds (R-S.D.) said during a Senate Armed Services Committee confirmation hearing for Gen. John Hyten, the US Strategic Command chief who is under consideration to become vice chairman of the Joint Chiefs of Staff. 
In response, Hyten implored lawmakers to provide B-1 maintenance funding to reverse the fleet’s problems.

... airforcemag.com ... Senator: About 10 Percent of B-1s are Fully Combat-Ready ...

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B-1B ... una modifica, per ora sperimentale, che guarda al futuro ...

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The US Air Force (USAF) has modified a Boeing B-1B Lancer to enable the bomber to carry larger and heavier weapons, including hypersonic missiles.
The service's 412th Test Wing at Edwards Air Force Base in California showcased a B-1B with the improve weapons capabilities to an undisclosed group of industry partners on 28 August, the USAF says (*).

... flightglobal.com ... USAF shows larger B-1B weapons capacity for hypersonic missiles ...

(*) ... afmc.af.mil ... Expanded carriage demonstration showcases possible B-1B capability ...

🇺🇸

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Giocare con le dimensioni della stiva o meglio sulla suddivisione delle due anteriori e applicare carichi esterni è sempre stato possibile con questo velivolo, in cui la somma teorica delle portate di tutti i punti d'attacco disponibili dentro e fuori è di 57 tonnellate, solo che si erano "dimenticati"di farlo in tutti questi anni in cui ai piloni esterni era già tanto vedere un pod di designazione bersagli, mentre la terza stiva, quella posteriore, per vari motivi era (e credo continuerà ad essere) usata come serbatoio...

Quanto ai missiloni, per dire era pensato per essere imbottito dentro e fuori di cruise AGM-86 (bestioni da oltre 6 metri) anche se poi questi furono limitati al B-52.

Meglio tardi che mai.

Edited by Flaggy

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Li ritiriamo ?
Si ... no ... forse ...
Sono usurati ...
Ne teniamo solo una parte ... chissà ...

:scratch:

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The Air Force likely needs at least 225 bombers, and that means it should probably hang onto the B-1 fleet - if studies show the hard-used aircraft can hold up, Global Strike Command chief Gen. Timothy Ray said at AFA's 2019 Air, Space & Cyber Conference.

Fonte ... airforcemag.com ... http://www.airforcemag.com/Features/Pages/2019/September 2019/Ray-USAF-Needs-Many-More-Bombers-Should-Expand-the-B-1-Mission-if-Theyll-Last.aspx ...

Quote

The Air Force is considering reducing the B-1 bomber fleet and using the savings to pay for a range of bomber fleet improvements, including a speed-up in the pace of B-21 bomber buys, and more long-range weapons, Chief of Staff Gen. David Goldfein told reporters Sept. 17, giving a limited peek ahead at the fiscal 2021 budget request. 
He said he could not “lean forward” with many details because the budget is not yet approved.

Fonte ... airforcemag.com ... http://www.airforcemag.com/Features/Pages/2019/September 2019/Goldfein-Forecasts-B-1-Cuts-Spending-Money-on-More-B-21s-Fleet-Improvements.aspx ...

🇺🇸

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But flying the B-1 in this way—slow, medium altitude, wings forward, instead of its design concept of fast, low-altitude penetration with wings swept back—has worn the B-1 fleet down, Goldfein said

Beh, forse questa doveva spiegarla meglio, perchè volare veloci a bassa quota espone il velivolo a turbolenze che a volare lenti e a media quota non ci sarebbero e comunque il velivolo, a prescindere da quel che fa vicino al bersaglio, credo passi gran parte del tempo a più alta quota e con le ali aperte per consumare meno.

Sicuramente però volare a freccia minima ("ad ali aperte") incrementa il momento flettente nella zona della radice alare (dove il B-1 ha anche cerniera dell'ala a freccia), anche se ad alta velocità e bassa quota tutta la cellula subisce una discreta usura che l'aria meno movimentata a media quota non causerebbe.

E' evidente che un velivolo a freccia variabile introduce una...variabile che i velivoli a freccia fissa non hanno, visto che, almeno questi ultimi, sicuramente si usurano di più a bassa quota.

Le piccole alette canard del B-1 aggiungono un'ulteriore variabile, perchè hanno lo scopo di alleviare gli effetti delle turbolenze.

A me sa che più che altro il problema stia nel fatto che l'abbiano usato intensamente e con le stive piene: solo 12 anni fa auspicavo che il B-1 potesse sopravvivere al B-52, ma evidentemente usare intensamente un velivolo in combattimento cambia le carte in tavola.

E allora, largo ai dinosauri...

Edited by Flaggy

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