Mach-3 SR-71 Blackbird’s HOT COCKPIT

Blackbird onboard USS Intrepid – Photo © Xavier Cotton http://www.passionpourlaviation.fr

As you may have heard, the mythical Lockheed SR-71 Blackbird was a strategic reconnaissance aircraft able to fly at more than Mach 3 – Mach 3.3 ie around 3,500 km/h; or 1,900 kts; and at a maximum flight level of… FL 850 or 26 kilometers high!

The Blackbird indeed had a unique flight envelope with a particular doghouse plot (since she could not exceed 3.5 G), and an exceptionnal coffin corner limited by her CIT – Compressor Inlet Temperature of 427°C maximum.

This aircraft was also unique for her engines were two J58 ramjets fuelled by JP-7 especially refined for extreme flying purpose. This special fuel could drip and leak abundantly as the airframe made up of titanium was retracted while taxiing, and became airtight only when it got its operating shape while flying very fast and very high because of the air density, and surrounding pressure plus the heating caused by the air friction at such speeds. In short, the whole structure considerably expanded when airborne.

The irony – I heard it on the grapevine, or read it somewhere on the web – that titanium which turned into dark blue while flying (SR-71s probably deserved those unofficial other nicknames « Bluebird », or « Habu » viper) was « imported » from… USSR!

Pilots must have taken significant risks inherent in flying such an aircraft as mentioned in this previous post. These pilots used to fly over the USSR to take strategic reconnaissance photographs during the Cold war. They wore pressurized spacesuits so that their blood could not boil in case of decompression or ejection at such altitudes.

The Blackbird travelled faster than a rifle bullet, and the air friction could have melt aluminum-skinned aircraft. At Mach 3.2, fuel cycled behind the chine surface in order to cool the aircraft! The inner windshield temperature could reach 120°C even though a heavy-duty cooling system was on a full function. On landing, the outside temperature of the canopy could reach 300°C, and it must have been far beyond on the fuselage, and wing surfaces while flying at high speeds. The pilot could feel the heat behind his protective gloves!

Special thanks to Xavier Cotton for the Blackbird photos. Please, visit his website on http://www.passionpourlaviation.fr

Facebooktwitterpinterestlinkedinmail

SKYDIVER Felix BAUMGARTNER’s TOP 5 JUMPS

Felix Baumgartner, the famous Austrian skydiver, is still waiting for better meteorological conditions to make a new attempt in the Red Bull Stratos project to break the sound barrier while freefalling. This new feat might happen within the next few days as it has already been scheduled on October 14.

According to the video below, Felix BAUMGARTNER’s top 5 jumps are:

  1. Wingsuit Channel Crossing
  2. Taipei 101 BASE Jump
  3. Petronas Towers BASE Jump
  4. Seating of the Spirits Cave Jump
  5. Man vs. Plane

 


Felix BAUMGARTNER was to jump on the 9th of October 2012. However, this jump which could have become the highest skydive in the aerospace history has been put off due to gusty winds.

In this new record attempt Felix BAUMGARTNER will be so high up – 120,000 ft, or 36.6 km – that if his suit leaks, his blood will boil. When he jumps, he will fall so fast that he will break the sound barrier as explained in this video:

 

 

A 3-hour ascent is expected to reach such an altitude, and it could take him more than a quarter of an hour to fall down back to the earth, and land… And now the animation on how it could unfold from the stratosphere right over Roswell, New Mexico, USA: (Click on the link below – MUST SEE!)

 

http://www.redbullstratos.com/gallery/?mediaId=media1859674064001

 

 

GO FELIX!

 

Facebooktwitterpinterestlinkedinmail

Tutorial on AIRCRAFT NAVIGATION AIDS

Thanks to Rising Wings Aviation Channel, here is a very interesting video on airplane navigation aids (NAVAIDs) such as VOR (Very high frequency Omnidirectional radio Range), and how to use the OBS (Omni Bearing Selector) knob both on CDI (Course Deviation Indicator), and VOR; DME (Distance Measuring Equipment); VOR/DME; TACAN (Tactical Air Navigation); VOT (VOR Test facility); and VORTAC (co-located VOR & TACAN beacon):

Facebooktwitterpinterestlinkedinmail

Future Airbus Aircraft Concept

This is what the next Airbus aircraft should be in the 40 years to come. The new Airbus concept is to match the passengers’ demand.

According to a consultation with the customers, 96% of them want more environmentally sustainable aeroplanes. The aircraft of the future will have to be fully recyclable, more sustainable ie eco-efficient, and less stressful:

Now, the leading aircraft manufacturer is using the feedback to paint its vision of sustainable aviation in 2050.

Airbus had unveiled a revolutionary concept cabin through images of a transparent airliner design, last year.

There is a need among the passengers to reduce the time spent in airports. The new Airbus concept cabin will integrate an additional door for faster boarding, and exit. This airliner of the future will reduce its noise, and carbon emmissions. It will use the latest technologies – bionic structure, blended airframe, enhanced laminar flow and noise reduction; blended U-tail, biomorphing seats able to collect the passenger’s body energy, cutting-edge relaxation systems, human body thermal recycling, dramatic panoramic view, World Wide Web access, round of golf, etc. Watch the video:

Facebooktwitterpinterestlinkedinmail

BRAZIL puts off its decision to buy new Fighterjet

Brazil is to spend up to 7 billion dollars (around 12 billion reals) for its Brazilian Air Force (FAB – Forca Aerea Brasileira) next procurement – fighter aircraft. There is no way to predict whether it will be Rafales, Gripens, or Super Hornets. Nobody knows much about what the tender outcome will be. We just know that India would advise Brazil in this competition. We will have to take another six months until Brazil makes a decision on this bid ie on December 31, 2012, or even later.

On the one hand, the French Dassault Rafale is deemed ahead thanks to its performance, the Swiss NAC tests, and thanks to a transfer of technology pledge. Moreover, the Rafale (carrier-capable) has won the Indian MMRCA tender among strong contenders – F/A-18E/F Super Hornet, MiG-35 Fulcrum F, Eurofighter/Typhoon, F-16IN Super Viper, JAS 39 NG Gripen. On the other hand, the U.S. Boeing F/A-18E/F Super Hornet would be cheaper but the transfer of technology still depends on another aircraft sale.

Remember about fighter aircraft performance… 3 years ago!

Facebooktwitterpinterestlinkedinmail