Lost at sea. Military loses contact with hypersonic test plane
August 11th, 2011
08:17 AM ET

Lost at sea. Military loses contact with hypersonic test plane

By Adam Levine

Military researchers conducting the flight of the fastest unmanned aircraft ever launched said Thursday an "anomaly" caused a lost contact with the vehicle nine minutes into its flight. The plane is believed to have crashed in the Pacific at some point along the planned flight path, according to a statement from the Defense Advanced Research Project Agency (DARPA), which conducted the test.

The Falcon Hypersonic Test Vehicle (HTV-2) had successfully separated from the launch vehicle and was performing "glide phase" maneuvers meant to test its aerodynamics when contact was lost, according to an 11 a.m. (ET) Twitter post from DARPA. A tweet, at 12:30 p.m. said downrange trackers were unable to relocate the HTV2 but the vehicle "has an autonomous flight termination capability".

The vehicle was launched by a Minotaur IV rocket from Vandenberg Air Force Base in California, before separating and re-entering the atmosphere over the Pacific. The launch, originally slated for Wednesday but then scrubbed because of weather, was not broadcast live.

This was the second run for the craft. In April 2010 ended with the aircraft crashing into the Pacific after a loss of contact nine minutes into the flight. But those nine minutes provided some key information about flying 22 times faster than a commercial jetliner.

Thursday's flight was to test control and communications capabilities, as well as heat resistance and other effects of hypersonic flight. The nine minutes of data demonstrated that launching the aircraft was mastered but they continued to be stymied in controlling the vehicle at Mach 20 speed.

"We do not yet know how to achieve the desired control during the aerodynamic phase of flight. It’s vexing; I’m confident there is a solution. We have to find it," said Air Force Maj. Chris Schulz, the DARPA program manager.

DARPA's goal is to create the capability of reaching any target in the world in less than an hour.

The triangular wedge of zoom is capable of reaching Mach 20 – approximately 13,000 miles per hour – according to DARPA. At such speeds in Earth's atmosphere, friction subjects the vehicle to temperatures of more than 3,500 degrees Fahrenheit.

As DARPA said on the HTV-2 site, at that speed "air doesn't travel around you – you rip it apart."

[youtube http://www.youtube.com/watch?v=a0NBMPMfQ8I&w=425&h=349%5D

Post by:
Filed under: DARPA • Military
soundoff (1,446 Responses)
  1. KndnVelm

    free sample of viagra how long for viagra to kick in is there a generic for viagra

    March 2, 2021 at 10:24 am | Reply
  2. Kirk Magnifico

    It's a pity you don't have a donate button! I'd certainly donate to this excellent blog! I guess for now i'll settle for bookmarking and adding your RSS feed to my Google account. I look forward to new updates and will talk about this site with my Facebook group. Chat soon!


    March 1, 2021 at 9:07 pm | Reply
  3. ClarkClurn

    1xc86 gs48y uobt

    March 1, 2021 at 9:00 pm | Reply
  4. ClarkClurn

    8voxf 9tj9a qz13

    March 1, 2021 at 10:14 am | Reply
  5. Phenelzine

    Did you know that the MAOI Anti-depressant Nardil is effective in 90 of patients for social anxiety and depression?


    February 19, 2021 at 5:55 pm | Reply
  6. SocialMedia Services2021

    Do you want get more social network traffic, likes, and retweets? SMM Supreme uses his own panel system to generate social media traffic to any website. Best Quality-Price Ratio on the market with 714928 orders until now. – Facebook Fan Page Likes: $4.50/1000 – Instagram Followers: $0.78/1000 – Youtube Views: $1.62/1000 – Twitter followers: $2.10/1000 – Paypal Deposit – Payeer Deposit – Automatic order processing – Our Website: https://smmsupreme.com/


    February 19, 2021 at 4:06 pm | Reply
  7. best forex trader to copy



    February 19, 2021 at 3:04 am | Reply
  8. Abcfallogegen

    viagra in canada buy http://viagriyvik.com/ no prescription viagra us

    February 18, 2021 at 8:26 pm | Reply
  9. KbbfTaism

    buy viagra no persecpiton http://kloviagrli.com/ brand name viagra

    February 18, 2021 at 11:51 am | Reply
  10. Phenelzine SocialAnxiety

    Nardil is way more effective than SSRI anti-depressants in treating social anxiety and depression.


    February 18, 2021 at 1:06 am | Reply
  11. Fbsgfiple

    when does cialis patent expire cialis online cialis soft tabs overnight

    February 17, 2021 at 10:50 am | Reply
  12. Donny Stidstone

    How to recover blog in blogger When it counted as spam in blogger?


    February 17, 2021 at 8:09 am | Reply
  13. Labxreext

    cialis 20 mg assunzione morris chestnut cialis forum achat en ligne cialis

    February 16, 2021 at 11:58 pm | Reply
  14. Nbnhfiple

    online pharmacy australia viagra sildenafil 100 capsules viagra tablets in india online purchase

    February 16, 2021 at 5:25 pm | Reply
  15. KvaxVelm

    american finance payday loan rapid cash debit card loans payday advance 90042

    February 16, 2021 at 1:56 pm | Reply
  16. Fqbbreext

    will payday loans affect me getting a mortgage alberta payday loan online metrobank cash loan promo

    February 16, 2021 at 11:41 am | Reply
  17. Jbnvclups

    cash loans monroe nc easiest place to get a payday loan hard money loans rochester ny

    February 15, 2021 at 6:17 pm | Reply
  18. Jbbnreext

    skad zamowic cialis taking a viagra and a cialis same time costco cialis cost

    February 15, 2021 at 8:12 am | Reply
  19. Ahbzreext

    cash credit term loan ace cash loans mcallen cash advances bad

    February 13, 2021 at 7:34 am | Reply
  20. zithromax buy online

    generic for zithromax [url=https://zithromaxes.com/]zithromax tablets[/url] zithromax 500

    February 12, 2021 at 10:48 am | Reply
  21. Aqcfallogegen

    cialis 40mg how to buy cialis online cialis (lillys)

    February 9, 2021 at 11:30 pm | Reply
  22. KuikTaism

    where can i get viagra cheap generic drugs viagra nz viagra online

    February 9, 2021 at 1:51 pm | Reply
  23. Fvfcfiple

    canadian pharmacies-247 viagra canada by paypal vviagra sample

    February 9, 2021 at 9:15 am | Reply
  24. KbcxVelm

    pharmacy pharmacies shipping to usa modafinil online pharmacy

    February 9, 2021 at 4:07 am | Reply
  25. Lbsxreext

    costco online pharmacy viagra under 50 online pharmacy without prescription

    February 9, 2021 at 3:13 am | Reply
  26. Nncsfiple

    viagra coupons generic viagra suppliers viagra paypal accepted

    February 8, 2021 at 2:23 pm | Reply
  27. Jbnbclups

    drugs for sale cvs pharmacy online prescription drug

    February 8, 2021 at 6:49 am | Reply
  28. Fqhhreext

    general health best online canadian pharcharmy top rated online canadian pharmacies

    February 8, 2021 at 4:43 am | Reply
1 2 3 4 5 6

Leave a Reply to Brandon


CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.