mach2.25st
Has a safe room ever been designed for a passenger aircraft for VIPs? The VIP could be strapped securely with safety gear like a helmet and other protection equipment. The room would be very heavy but I would think it would be nothing too much for a large airliner. For example any idea if the President has something like this? During a crash he could be held securely with full gear on in a room able to withstand great forces and temperatures. Like a black box. Obviously it would be unlikely for people to survive if the aircraft was destroyed at high altitudes or crashing into something, but it would not be unbelievable for someone to survive runway crashes and other possible were the most common death is head injuries.
Answer
Have you ever heard the term spun into butter?
The human brain can not survive intact and functioning if subject to too much of or too many "spin" acceleration / deceleration cycles. So the body might well survive "intact", but be rather limp before rigor mortis sets in.
Aircraft crashes are particularly nasty in as much as the fuselage tends to break up and roll, often burning as they do so. Your idea would soften SOME aspects of this, but tend to heighten OTHER ASPECTS.
The reason a motorcycle helmet works poorly when loose is that it transmits more spin to the head as much as any other thing. THE TIGHTER HELMET SKIDS its hard surface against other objects, while the looser helmet spins on the head stops abruptly at it's limit of movement relative to the head and actually transmits momentary forces greater than might well have existed WITHOUT THE HELMET.
Your idea is in essence something like that.
A foam lined box would act as an air bag. BUT if the plane rolled ALL the contents of that box would be stuck inside the foam and FORCED to accelerate with the planes body AS IT ROLLS, BONCES and tears apart. It's rather likely this MIGHT entail transmission of forces greater and more harm-full than no box at all.
Perhaps if the object or person in the box were in a hard shell, that could crush the foam which itself were in a hard case AND had a hard case on it's inside so-as to resist objects being embedded in it?
Thus, I think you have something.
I would be willing to collaborate on a design of a 20 passenger airplane that would pod all passengers in carbon carbon mini newt-suits within shells within foam within shells so-as to offer improved survivability.
And no. With modern materials there is no reason great improvements wouldn't be possible in terms of safety, without allot of extra weight. Each pod should not increase weight by more than 100 lbs, and as it's possible to design the pods to act as structure, then there is even a potential of decreased weight.
Now getting people to sit in pods for a 2 hour flight... in newt-suits? Well, we'll be likely bankrupt in a day.
Have you ever heard the term spun into butter?
The human brain can not survive intact and functioning if subject to too much of or too many "spin" acceleration / deceleration cycles. So the body might well survive "intact", but be rather limp before rigor mortis sets in.
Aircraft crashes are particularly nasty in as much as the fuselage tends to break up and roll, often burning as they do so. Your idea would soften SOME aspects of this, but tend to heighten OTHER ASPECTS.
The reason a motorcycle helmet works poorly when loose is that it transmits more spin to the head as much as any other thing. THE TIGHTER HELMET SKIDS its hard surface against other objects, while the looser helmet spins on the head stops abruptly at it's limit of movement relative to the head and actually transmits momentary forces greater than might well have existed WITHOUT THE HELMET.
Your idea is in essence something like that.
A foam lined box would act as an air bag. BUT if the plane rolled ALL the contents of that box would be stuck inside the foam and FORCED to accelerate with the planes body AS IT ROLLS, BONCES and tears apart. It's rather likely this MIGHT entail transmission of forces greater and more harm-full than no box at all.
Perhaps if the object or person in the box were in a hard shell, that could crush the foam which itself were in a hard case AND had a hard case on it's inside so-as to resist objects being embedded in it?
Thus, I think you have something.
I would be willing to collaborate on a design of a 20 passenger airplane that would pod all passengers in carbon carbon mini newt-suits within shells within foam within shells so-as to offer improved survivability.
And no. With modern materials there is no reason great improvements wouldn't be possible in terms of safety, without allot of extra weight. Each pod should not increase weight by more than 100 lbs, and as it's possible to design the pods to act as structure, then there is even a potential of decreased weight.
Now getting people to sit in pods for a 2 hour flight... in newt-suits? Well, we'll be likely bankrupt in a day.
What are the restrictions of a motorcycle permit?
Ron
I live in hawaii
Answer
Check your local DMV/DOT in Hawaii. Locally the permit restrictions are: no unsupervised night riding, helmet mandatory, zero tolerance for alcohol, no passengers allowed- but daylight means if adult over 21 with a basic car license also can ride alone on any highway that vehicle can legally operate on-- so a over 150cc cycle can go on interstate system. My little CM400 has a new student, he passed the written test and will be legally puttin' this evening. Age is a factor on some permits- Iowa lets 14 year olds that have a moped permit ride on city street and county roads. Little mopeds can't do more than 30 mph and are usually so light that can't cause much extra damage. Iowa also has a tractor safety test- the 14 year old that pass's it can drive a 8800 series John Deere with tires higher than a squad car and priced more than 3 Cadillacs, weight of up to 50,000 pound or so- niece used to drive one with wagons to town that age. Mopeds as a side issue to tractors permits for letting younguns' on road- implements of husbandry driven by youth have a relatively safe record, so do mopeds. A car driver that tries to pick on mopeds - the word gets around the young crowd and the car seen parked gets a OOPS crunch by a very large tractor or combine driven by victim moped riders classmate or relative.
Check your local DMV/DOT in Hawaii. Locally the permit restrictions are: no unsupervised night riding, helmet mandatory, zero tolerance for alcohol, no passengers allowed- but daylight means if adult over 21 with a basic car license also can ride alone on any highway that vehicle can legally operate on-- so a over 150cc cycle can go on interstate system. My little CM400 has a new student, he passed the written test and will be legally puttin' this evening. Age is a factor on some permits- Iowa lets 14 year olds that have a moped permit ride on city street and county roads. Little mopeds can't do more than 30 mph and are usually so light that can't cause much extra damage. Iowa also has a tractor safety test- the 14 year old that pass's it can drive a 8800 series John Deere with tires higher than a squad car and priced more than 3 Cadillacs, weight of up to 50,000 pound or so- niece used to drive one with wagons to town that age. Mopeds as a side issue to tractors permits for letting younguns' on road- implements of husbandry driven by youth have a relatively safe record, so do mopeds. A car driver that tries to pick on mopeds - the word gets around the young crowd and the car seen parked gets a OOPS crunch by a very large tractor or combine driven by victim moped riders classmate or relative.
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