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Why do I lose brake pressure on my landrover discovery when I am coming down from altitude 13000ft then they come back if I let it sit for 20 min?
Hoggsta
Im not sure what you mean by brake pressure. But if you're comming down from a hill and you are constantly braking the discs overheat and you get lower brake preformance. If this is what you mean. try descending with while in gear and use the brake less. Otherwise It could be your braking fluid is too old and you need to replace it. Over time it takes on moisture and doesn't perform that good. Harrie Thanks Harrie but no, this one is really weird. I totally lose pedal pressure without even using the brakes (eliminating "brake fade") & the fluid is fairly new. It's something to do with pressure change but removing the reservoir cap to equalise the pressure (a theory) doen't even help
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∙ 15y ago
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What height do skydiver falling from 13000ft open his parachute?
After waving a lot to the cameras it was time to open the parachute and float down the remaining 5000 ft. Andre opened the chute and manouvered it around a lot to show me the view. He even gave me the controls of the parachute for a while. We landed after 5-6 minutes of parachuting down.http://babayaga.sulekha.com/blog/post/2007/12/free-falling-at-13-000-feet.htm
How high do people go for sky diving?
An average belly-to-earth formation skydiving body position is around 120mph. This is the same speed for a beginners tandem skydive. Freefly headdown skydives are about 160mph. The fastest discipline is speed skydiving where Christian Labhart from Austria recently did 526 km/h average over the vertical kilometer. That is over 320mph! At the end of the skydive, the competitior must pull out of the headdown streamlined dive and slow down to 120mph to safely open the parachute.
How high do airplanes fly?
Small private planes fly at 12,000 feet maximum. Passenger airliners fly from 32,000 to 40,000 feet. The Concorde super-sonic transport cruised at Mach 2 at 57,000 feet.Small private planes fly at 12,000 feet maximum.Passenger airliners fly from 32,000 to 40,000 feet.The Concorde super-sonic transport cruised at Mach 2 at 57,000 feet.Typical jet liners fly around 25,000 to 45,000 feet. Miltary fighters get up to 80,000 feet, some specialty planes such as The U2 spy plane and the SR-71 are thought to go as high as 120,000 feet. the x-15 has a ceiling of 354,000 feet I guess you could count the space shuttle and space ship one as "planes" since it is powered and does glide so it would have a limitless range. The height varies greatly depending on the type of plane and how far they are traveling.Private planes flying for fun can fly as low as 500 feet above the terrain in unoccupied areas and 1000 feet above occupied areas.When flying in bad weather planes will normally fly at least 1000 feet above the highest object within three miles of the plane. So, if an antenna in your area is 2000 feet above the ground, the lowest a plane can fly in that area would be 3000 feet.Jet engines and reciprocating engines that are turbo charged perform better when flying higher. The planes also encounter less air resistance at higher altitudes.Private planes normally high no higher then 25,000 feet above sea level. If a plane is rated as being able to fly higher then this, special endorsements (high altitude endorsements) are required by the pilot.Jets have speed limits below 18,000 feet so they prefer to fly higher then that altitude unless landing or taking off. They also prefer to be in less congested air space. These have service ceilings of up to 45,000 feet.Military spy planes have been known to fly as high as 70,000 feet. Airplane wings are curved on the top which make air move faster over the top of the wing. The air moves faster over the top of a wing. It moves slower underneath the wing. The slow air pushes up from below while the faster air pushes down from the top. This forces the wing to lift up into the air.An upper limit on the airplane is the thinness of the air - there must be enough oxygen to support the turbofans running the plane. At about 70,000ft (about 14 miles) the air is thin enough that you start to require ramjets and higher speeds (2 to 3.5 Mach) to run efficiently, but by that time you are no longer running an "aircraft" but a vehicle on the edge of spaceflight.Most commercial aviation planes run under 55,000ft (about 10 miles) and about 80% of the time run between 20,000ft (~4 miles) and 35,000ft (about 6 miles.) Considering the US SR-71 Blackbird to be the very edge of 'airplane' 85,000ft (16 miles) is the limit for 'conventional' aircraft.AnswerAn airplane is usually powered by an engine that require air to operate. So the limitation of flight is altitude that the engine can run.Air vehicles can fly higher and into space by using a Rocket engine. But this is not considered to be a airplane by most definitions.There is no exact value, as the atmosphere has no sharp cut-off point. The highest I know an aeroplane can go is 25,900m (85,000 ft), the service ceiling of the SR-71 Blackbird. Most of the vehicules that can top that can go into space and thus cannot truly be considered aeroplanes.jumbos eg. Boeing and airbus aeroplanes fly at around 40,000 feet or 11,000 metres.i hope this can help you.The extremely popular Cessna 172, often used as a trainer, has a published ceiling of 13,500 feet. Having flown this airplane, I can attest to the fact that this altitude is more in the minds of the manufacturer, than in actual reality. This airplane is more likely to be flown at 1500 - 3500 ft. On a hot, humid day, when pressure altitude is very low, this airplane could not achieve that altitude, or could take hours to arrive at it.Fighter jets, on the other hand, can reach altitudes of 50,000 feet or more.The Cessna 172 is sometimes used for skydiving and with a Tandem and one cameraman will struggle at around 10000ft but will get to around 11500ft maybe 12000ft if you want to take an extra 10 or 15 minutes from 10000ft. Im sure it would get to 13000ft with a single pilot on a good day. I have jumped from a Cessna 172 on many occasions and its great for hop and pops from 3000ft to 5000ft.
What is it like to skydive?
You'll get to the drop zone and talk to someone in the office (known to skydivers as manifest), who will get you started on some paperwork. There will be a lengthy waiver that you have to sign before you can jump, which reminds you that skydiving is an extreme sport and is not a terribly safe activity, so the drop zone is not liable if you get hurt or killed during your skydive. While you're looking over this reassuring bit of paperwork, you'll probably notice all the people around you--experienced skydivers and first-time tandem jumpers alike. If you take a minute to really look, you'll likely notice that they all seem to be wearing huge smiles. This will make sense to you in a little while. After you sign the paperwork and watch a short introductory video, you'll meet your instructor and your videographer, if you opted to get video of your jump (it's expensive, but if this is your first time, you will absolutely kick yourself later if you choose not to get video). Your instructor is your best friend for the next few hours. He will give you a short safety briefing and explain to you what to do during the skydive. It's in your best interest to listen to him--it's his job to save your life, and you have the potential to really mess him up if you don't do what you're told. After all that is done, it's time to get suited up. You'll wear a specially made harness that straps to your instructor's parachute harness. You'll also wear a pair of goggles to keep the wind out of your eyes, and, depending on the temperature, you may wear a jumpsuit. After your gear has been checked out, you'll head toward the plane. If your nerves haven't kicked in yet, get ready, because they're about to. If you're expecting a fancy first-class seat on an airliner, prepare to be disappointed. Most jump planes are tiny, cramped, and uncomfortable. You'll probably be sitting on the floor, in your instructor's lap, with somebody else sitting in your lap. If you're lucky, you may be in a larger plane with actual seats, or benches. If you're unlucky, you'll be crammed into a tiny Cessna with 4 other people and barely enough room to scratch your nose. Either way, the plane ride is a necessary evil, but it's worth it. You'll see. After everybody's strapped in, the plane will taxi to the runway. It's normal to be scared at this point. You'll begin your climb to altitude, which can take anywhere from fifteen minutes to a half hour. On the way up, your instructor will go over some more things with you, and will probably joke around to try to loosen you up, if he can tell you're nervous (and let's face it--who wouldn't be? You're about to jump out of an airplane!). If you're jumping in the summer, the jumpmaster will usually open the door for a few minutes on the way to altitude, just to cool everybody off (there's no air conditioning on a jump plane). This is an interesting experience in itself, and can be a bit scary if you're near the door. But don't worry, you won't fall out--at least, not until you're ready to! So after a long, uncomfortable ride to altitude, you'll feel the plane level off. Someone will yell "Door!", and the door will open. The sound of the wind rushing by at 100mph is deafening, even from inside the plane. Your instructor will get you up and slide you closer to the door. The adrenaline will have your heart racing in a mixture of fear and excitement. The anticipation grows as you move closer to the door, and watch other jumpers exit the plane. By the time you get to the door, you'll be able to see the ground below you. The view from up here is spectacular. You're way too high to see people, or cars, or even houses, and you can clearly see the curvature of the earth. Your instructor will position you in the door, and at this point, it's do or die. No going back now. Your videographer will step outside and hold on from outside the door to get a good view as you get ready to go. Your instructor will give the signal... and then you're flying. There are no words to describe the feeling of freefall. It's absolute freedom. There is no sensation of falling; it's much more like flying. It's an experience like nothing else in the world. Your senses may feel overloaded; it is really a lot to take in, especially on your first time. But for most people, by the time they exit the plane, the fear is gone. It's replaced by a feeling of ecstasy that the majority of the population will never dream of. You'll fly for about a minute, until it's time to deploy the parachute. At about 5000 feet above the ground, your instructor will pull the ripcord and your parachute will open, slowing you from 120mph to about 15mph in around 5 seconds. Once your parachute is open, you'll be able to talk to your instructor (the wind is much too loud to talk in freefall). It's also your chance to enjoy the scenery, and really relax and take in the experience. It's very quiet under canopy, especially compared to the deafening wind noise of freefall. Your instructor may let you steer the canopy. After about a five minute canopy ride, you'll come in for your landing. Your instructor will flare the canopy, and you'll either land standing up, or come sliding in on your butt. Once you reach the ground and fully realize what you've just done, you'll understand all those grins on the faces of the other skydivers, and probably have one of your own. Skydiving has its risks, and can result in injury or death, even if you do everything right. It's rare, but it happens. If you're okay with this, and you still choose to do it, it can be an absolutely life-changing experience. A word of warning, though--this sport is highly addictive, and I think Leonardo da Vinci said it best: "When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will long to return."
