Power/failsafe LED

**jamesb** · 19th May 2004, 15:21

you forgot to subtract the 9.81m/s2 of gravity, the figure you have is for straight line acceleration.

minimum (empty) weight is 9998kg, or something like that, Newtons is a force not a weight, so in theory, and empty eurofighter accelerates upwards at 2 g, but its never empty, and furthermore, the rated thrust is at maximum speed, the static thrust is nowhere near the 206kN

I dont really want to agrue figures with you as I very quickly worked out the above in my head, but until someone is able to explain to me why an aircraft twice the weight of an F16, with only marginally more power, is able to accellerate at twice its rate, Ill stick to the no way can it accelerate to supersonic vertiaclly

**jamesb** · 19th May 2004, 15:28

figures from Bae systems

Thrust - maximum, dry 60kN 13500lbs stat
Thrust - with reheat 90kN 20000lbs stat

I think 206Kn is a misprint.

**typhoon_driver** · 19th May 2004, 15:29

o i love starting debates

its cool James, no offense taken

**jamesb** · 19th May 2004, 15:32

little off the LED subject dont you think?

**typhoon_driver** · 19th May 2004, 15:37

true

so back to LEDs, which is everyones favourite colour?

**kane** · 19th May 2004, 15:42

Please keep discussion in regards to safety...

Alternativly start a thread in general chit chat.

**jamesb** · 19th May 2004, 16:14

ok, safety. has anyone looked at the possibility of tech crew being colourblind, or the local lighting negating the leds as they no longer appear? this is especially likely in the multi coloured lights we are sometimes fighting in

**grant_ploughbot** · 19th May 2004, 17:49

I have, and personally i do not agree with the LEDs as i think the benifits of them do not overcome the danger aspect i.e people becoming slightly complacent and light colours as james rightly said, and things of the like!
One other thing i noticed, it may be me just miss interpreting things, so please excuse me if im being a little silly here, but as people keep on saying, that if the LEDS get damaged in battle, or stop working, etc, then still expect the robot to still be live? I personally think that disregards the need for an LED, because regardless of whether the LED is off, the robot may still be live.
This is my opinion, and i dont think the benifits out weigh the hazards :S
Please excuse this if it sounds rather ridiculous.
Thanks
Grant

**bugs** · 19th May 2004, 19:02

Weve had this discussion before. Lets not start it again (although IMHO youre right)
Current colour scheme ive got in mind:
Red is power, green is failsafe (a bit contradictory) and blue is wheapon.