Thank you to you and Rstaff3 for the needed details, and the rest for the laughs! I had assumed (hoped?) that the military had something more elegant (and of course expensive) than an e-match, but couldn't find any specifics!Like rstaff3 said. Something like this:
It's quite different from an ematch; higher current (nobody wants a Sidewinder going off accidentally), matched to the 28 volt DC aircraft power bus, less sensitive to physical and electric shock.Thank you to you and Rstaff3 for the needed details, and the rest for the laughs! I had assumed (hoped?) that the military had something more elegant (and of course expensive) than an e-match, but couldn't find any specifics!
Orbital ATK makes three different motors for the Sidewinder series of Missiles:According to Wikipedia, the engine is a Hercules/Bermite MK36 Solid Fuel Rocket.
It's just a common designation, which stands for Mark 36. It's like a version number.Does anyone know what "MK 36" means? It's listed in the name (with parenthesis around it) of the first sidewinder variant and in the name of the rocket motor.
There's also this: https://www.govconwire.com/2016/07/...-for-sidewinder-block-ii-missiles-production/
I think I'll be backing out of the conversation a little, since I'm quite confused right now.
Absolutely correct! Although we don't require that many inhibitors, we still require that whether the igniter is inserted head end or aft end the connection of the circuit that powers the igniter is required to be made either at the pad or at a preparation area that is away from uninvolved persons and must not be armed until the rocket is on the pad and near vertical.Adapting these to HPR Head-End-Ignition (HEI), as Aerotech is pursuing, also requires some thought to safety. If you review the linked PDF, you'll see a schematic that requires two independent 'arm' inputs plus a 'fire' signal to initiate ignition. For a two-stage configuration, with HEI for the upper stage, this adds an interesting margin of safety.
Two words: Zirconium and Boron.
Three words: Don't go there.
Rocket motor igniters come in at least two parts: initiator and pyrogen. The initiator is the (usually) electrically activated bit that kicks things off. Usually a 1 Ohm/1 Watt device. (Must be able to withstand the application of 1 Watt for 5 minutes without doing anything.) This is followed by a pyrogen which does the heavy lifting of generating heat/gas. Popular pyrogens are BKNO3 and Magnesium Teflon among others.Help me understand Kurt. BKNO3 is used for rocket ignition, isn't it?
Yes BKNO3 is used for ignition. I've been told the zirconium can be very dangerous and powdered Boron is quite pricey. That's where "don't go there" came from as far as hobbyists are concerned. The government, NASA and the military have the means to do what they want and pull it off.Help me understand Kurt. BKNO3 is used for rocket ignition, isn't it?