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lifting
`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.
Walked into our condo in Orange Beach Alabama and found two tiles popped loose from the floor and raised as if they had been pushed together to form a tent. What would cause this?
Hi everyone, I'm currently an A-Level DT student. My project involves me making a product for my dad, who is a tiler, and to help him with lifting tiles. Before I go ahead with making this product, I want to research this issue a bit more and see if it affects others in this industry too. I am...
Hi all,
I had my patio done with porcelain paving a while ago and one of the slabs has a little movement on the corner, like there is a 1mm void underneath the slab, causing the grout to crack.
Nearly all of the slab sounds completely bonded, it is just this corner that sounds hollow.
Is...
Hello, I am hoping I may be able to get some advice.
2 years ago we had a new kitchen fitted and paid the company to fit the tiles at the time. My wife selected quartz resin tiles the kitchen company did not supply them so another supplier. these tiles are 60x60 starluxe tiles, the adhesive and...
Hi all. So I have just finished laying my 600 x 600 x 20 mil porcelain tiles in the back garden over a type one base. One of the tiles I was running short on cement and so I did a sort of dot and dab thing which didn't work in the slightest and came loose the next day. There was still quite a...
Morning all,
Recently tiled a bathroom but I have a problem with the floor tiles in the shower area that appear to have lifted. Bathroom has probably been tiled for a year but only used for the last two months.
Floor makeup as follows
Pozijoists over specced with 1/3 of the usual deflection...
We are just about to rip out a travertine bathroom. Breaks my heart as the wall tiles look great and there's a 1700x1000mm travertine shower tray. The floor tiles aren't so great. There's clearly been an issue at some stage and half the floor tiles had to be lifted. They've not been able to get...
So we had our bathroom replaced with a wetroom around 6 years ago and where the water hits the floor and where you stand, all the little mosaic tiles started to lift. This was around 2 years ago. We have reapplied adhesive a few times but it just keeps happening, so resorted to pulling them up...
I have had 30m2 of 600x600 flooring tiles laid after which the grout started lifting. I thought it was simply needing regrouted and the original tiler was too busy to attend so I got another tiler whom said the tiles were boss and needing lifting. I then obtained a second opinion and another...
Hi all,
I’m hoping someone can help.
in June 18 we had some tiles fitted to the kitchen and hall, along with electric underfloor heating.
the tiler used insulation pads, then applied the electric matting, and the tiles were stuck to that surface.
We were instructed not to turn in the...
Hi all,
I’ve been asked to lift and replace some loose tiles (see picture).
The customer only has a few spares and has asked if it’s possible to lift the loose ones without breaking and refix them. The tiles are also butted up together. Is there any way this is possible?
Just for the record I...
Rubi 4 in 1 Work Bench only £69+VAT at our FREE Nicobond Technical Tiling Solutions Roadshow.
Terms and conditions apply. Orders must be placed in person on the day, at the event location by the person attending the seminar. Orders will be taken on the day and then ordered from Rubi. The items...
Hi all.
I've recently just tiled bathroom floor using porcelain wood effect plank tiles down on aquapanel using mapei rapid adhesive from Screwfix.
I'll admit I didn't backbutter and used self levelling wedges. Now my issue is I've noticed some of the tiles 24hr later I can lift up that...
Hi all, I’m new to this and tiling! Looking for advice!
Basically we built a 30sqm extension on our house to move the kitchen into it so we could have a larger living space,
It was recommended to use underfloor heating in the extension and a cement based liquid screed! (Rest of the house is...
Hi,
the company that installed my UFH omitted to commission it. I found out about this step after tiling was done.
I want to take all measures in order to prevent any cracking/lifting, please offer me some advice.
Details of my setup:
- cement+sand screed laid April 2018
- around 20 sqm...
As per the title. Used for one project only and in as new condition. Paid £1038.o0 for it from pro-tiler a month or so ago. Hoping to get 75% of what I paid which equals £778.00.
I would really appreciate some advice from those who know more about tiling than myself.
We had an ensuite fitted in Feb 2017 - including tiling for recessed shower, backsplash around sink/toilet fitted units, and floor.
At the time of install, much of the work of the first tilers to complete...
My neighbour had an outhouse converted to a utility room with a new back entrance. The place was built in the 1940s and I suspect the concrete floor has no DPM. The people who converted it did a generally poor job (I’ve already done remedial work on the roof and guttering for them).
The issue...
Morning,
Can someone tell by looking at these images why the tiles have loosened. Laid on floorboards with 12mm Hardie screwed down on a bed of cement based adhesive. I'm confident floor itself is sound. Tiles are 300 x 500mm ceramic wall/floor and laid using slow set adhesive. It seemed to...
can anyone tell me which are the best single suction cups, I’ve been using an old one when needed but it’s time for a couple of nice ones. I’ve seen some that work on un even surfaces..
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