# Do the shock waves from a supersonic plane affect general aviation planes?

flyingfisch
• Do the shock waves from a supersonic plane affect general aviation planes? flyingfisch

Are there any considerations to take into account when flying around supersonic aircraft? I know that wake turbulence from large aircraft can pose a threat to smaller planes. Is the same true of the shock waves generated by planes in supersonic flight?

For instance, do fighter pilots need to be aware of the shock waves caused by other fighter planes in the vicinity?

• Great question! I am far from an expert in supersonic flight, but according to this NASA chat transcript, Ed Haering (an aerospace engineer at NASA's Dryden Flight Research Center in Edwards, Ca. who I would consider to be an expert) answers just this question and says that it isn't a problem for other airplanes:

chetman1020: Do sonic booms ever disrupt other things in the air?

Ed: Sonic booms can temporarily dissipate or accentuate a "Sun-Dog," the small bit of a rainbow off to either side of the Sun caused by high altitude ice crystals. Aircraft are not affected by booms from other aircraft.

Tags
• Are there any considerations to take into account when flying around supersonic aircraft? I know that wake turbulence from large aircraft can pose a threat to smaller planes. Is the same true of the shock waves generated by planes in supersonic flight? For instance, do fighter pilots need to be aware of the shock waves caused by other fighter planes in the vicinity?

• these are longitudinal equations of motion although their general form differ from each other. I think I got to understand one point: these equations were derived considering translation motion on the x and z planes...I hope this is a relevant place for me to ask a math question regarding aircraft design. I am trying to understand how one would implement a controller to control the pitch angle of an airplane for a small exercise. I understand the control part and its implementation. What I do not grasp is how one acquires the longitudinal equations of motions (which are then used for the control part) which

• In smaller planes, pilots has apparently great visibility in front, on the sides and a good portion of the rear of the plane. But as the plane's size is increased, the visibility is also reduced. One obvious factor is height of the cockpit from ground, but it appears (from pictures) that pilots of bigger Boeing/Airbus planes have too many blind spots. However, I did notice that some bigger planes have a camera behind the nose gear to ease in taxiing etc. So the question is that how do pilots compensate for this lesser visibility? Do they always need external help (e.g. ground crew

• I've now seen several landing strips up close and there are lots of tire tracks from planes' landing wheels. I wonder if it somehow modifies the properties of landing strips to make for poorer landing conditions. Do landing strips suffer from lots of tire tracks?

• I always wondered if it was possible for planes and other aircraft to leave the Earth's atmosphere. Normal commercial transport airplanes can fly pretty high, but then they need air to get the speed boost from. Reactive engines seem like a better idea, but I don't know how much importance air has for them. Is it possible to get to space from Earth's surface using a non-rocket aircraft?

• I used to work for a company making maintenance software for the shipping industry. Each component, from a cylinder in an engine to the furnace has to be inspected after (e.g.) 10,000 running hours, or every 2 years, etc. My question is: Are task cards like the one below still used in aviation, or is there a more up-to-date way of working nowadays? (The PDF I got this from is 10,000 pages long) What must airlines do to ensure their planes are maintained according to schedule?

• We know that most of the plane accidents and deaths result from the explosion of fuel tanks in the planes, like when two planes collide, or when the plane falls on the ground. With the advent of technology, i wonder whether it is possible to prevent the fuel explosion. Can this be done by evaporating the fuel in the planes just before the collision? Or use a solid architecture encapsulating the fuel tanks in the planes, such that the fuel is not set to fire? What research has been done in this field and if so what were the findings?

• it should suffice to say that solid-state gyros can be engineered and built in such a way that gimbal lock is impossible, but I'm not certain that's how they're actually designed. Do modern AHRS systems with solid-state gyros (or replacement electronic horizons like the RC Allen 2600 series) still suffer from gimbal lock, or do they provide true 3-dimensional freedom? I'm interested primarily in answers from a light General Aviation standpoint, but answers about electronic gyros on commuter and transport category aircraft would be interesting too.

• In companion to the other question asking about wheel tire tracks. Planes come down and stop with a significant amount of force which I would expect to cause either rutting or potholes. Are runways susceptible to ruts and potholes? And do these cause significant issues for landing planes?

• Forgive my total lack of aviation knowledge. I just flew out of SFO and was fascinated by the fact that pairs of planes alternated between departing on 28L + 28R (simultaneously) and arriving on 19L/R. My question is this: What amount of micromanagement from ATC exists to keep taking-off planes on schedule and not running into the landing planes, especially in cases where runways cross? How much information does the tower give to the taxiing planes? Thanks!

Data information