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`A lifting body is a fixed-wing aircraft or spacecraft configuration in which the body itself produces lift. In contrast to a flying wing, which is a wing with minimal or no conventional fuselage, a lifting body can be thought of as a fuselage with little or no conventional wing. Whereas a flying wing seeks to maximize cruise efficiency at subsonic speeds by eliminating non-lifting surfaces, lifting bodies generally minimize the drag and structure of a wing for subsonic, supersonic and hypersonic flight, or spacecraft re-entry. All of these flight regimes pose challenges for proper flight safety.
Lifting bodies were a major area of research in the 1960s and 70s as a means to build a small and lightweight crewed spacecraft. The US built a number of lifting body rocket planes to test the concept, as well as several rocket-launched re-entry vehicles that were tested over the Pacific. Interest waned as the US Air Force lost interest in the crewed mission, and major development ended during the Space Shuttle design process when it became clear that the highly shaped fuselages made it difficult to fit fuel tankage.
Advanced spaceplane concepts in the 1990s and 2000s did use lifting-body designs. Examples include the HL-20 Personnel Launch System (1990) and the Prometheus spaceplane (2010). The Dream Chaser lifting-body spaceplane, an extension of HL-20 technology, was under development as of 2012 as one of three vehicles to potentially carry US crew to and from the International Space Station. In 2015 the ESA Intermediate eXperimental Vehicle performed the first ever successful reentry of a lifting body spacecraft.

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    wet room tiles lifting

    Hi, I recently had my bathroom tiled including the shower area which was done like a wet room, the tiler did put down a tanking kit but some of the tiles seem hollow and some of the tiles have come off. It is the mosaic tiles. any idea why this would happen? I also need to get a quote to get...
  2. E

    lifting porc tiles

    Hello lads. I.ve got a bit of a dilema. i've got to lift two porc floor tiles, in the middle of a floor. They have been down for five days, with s,p,f. I need to know the best way to get them up, without damaging other tiles. hope someone has done this before. Cheers in advance, Edd
  3. C

    Lifting 2 popped tiles

    My window seal has obviously been a victim of slight subsidence and as a result two of the tiles on the window seal have popped up slightly.this is unsightly and i need to try and lift them and re-lay them after trimming one of them slightly. My question is how do i lift these 2 tiles without...
  4. D

    Lifting old tiles to re-tile, help!

    I plan to re-tile our kitchen and was hoping for some advice on a bit of a mammoth job. Firstly I need to remove the existing tiles (20cmx20cm 1 inch slate). I cannot tile over as there are external doors opening into the kitchen so that is not option. I plan to take them up with a...
  5. T

    Lifting toilet and sinks to fix floor

    Hi, Was wondering if anyone could help me. Ive got a couple of small bathroom florrs to do tomorrow for a freind and i want to lift the sink and toilet prior to tiling. i think there are flexis on the pipes but dont think they will stretch to the lenght i want. How do i extend the the pipes a...
  6. B

    Old tiles lifting

    With tiling work being slow i whent back to were i used to work a few months ago and i manage to get tiling/plumbing work Fri/Sat. I do four days a month repairing tiles through out the factory. Today i was called to have a look at some tiles that have come up, this caused a loud bang (tiles...
  7. F

    Lifting ceramic tiles

    Is there anyway of lifting ceramic tiles without cracking them?. I have 35sqm various sizes from 12by12 to 18 by12. It is in conservatory that has no heating and I wish to install underfloor heating. I do have a Fein cutting tool that is great for removing the grout. Thanks
  8. T

    slate floor lifting?

    2 problems i have priced up a kitchen floor which a customer had laid 4 years ago. concrete floor with natural slate tiles. there are 2 large sections which have lifted,but no obvious reason why! the grout is cracking round alot of the tiles and the few tiles that have lifted look like the...
  9. CJ

    Floor Lifting

    Got a call to look at a job.......insurance job:yes: Anyway.....the BIG kitchen (30m) has been down 8 years. No UFH right across the kitchen 2 rows of tiles have just lifted up almost like they have been pushed together until they came up like a low pyramid. Never seen anything like it...
  10. A

    Lifting Ceramics off concrete floor

    Hello, just started lifting floor tiles from my kitchen, but having a problem lifting them. I am using a big heavy duty floor scraper (mutt), but not getting anywere. I have tried drilling holes into the 4 corners and then smashing with hammer, but I am just making a hole with the hammer in the...
  11. T

    Help! tiles loose and lifting

    Hi all, I posted here a few months ago while I was getting estimates to have a large floor area tiled. A large amount of the floor was wood parquet floor. The job seemed to go well and all was well BUT recently some of the tiles came loose (grout started to crack) and then some clearly are no...
  12. A

    Lifting Porcelain Floor Tiles & Addhesive

    I have to lift 62 square metres of porcelain floor tiles. I'm sure that the tiles can be lifted easily using a power chisel, but how on earth do you get the addhesive off the concrete screed in order to lay new porcelain tiles? I have underfloor heating pipes running through the screed. Is it...
  13. A

    Newly laid floor tiles lifting

    We have just finished tiling our bathroom floor, only to find that the grout on one row of the tiles has cracked and the tiles have lifted. Does anyone know any reasons for this happening? Obviously we are going to have to re do row but want to prevent it from occuring again.:confused:
  14. M

    Lifting Tiles

    How easy/difficult is it to lift two porcelain tiles which have scratches on them?:( The floor is now finished but the two tiles in question with the scratches on them is right in the middle of the floor.
Posting a tiling question to the forum? Post in Tilers' Talk if you are unsure which forum to post in. We'll move it if there's a more suitable forum.

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