I thought ram jets only started working above speeds of Mach 2.
Ronald M Piskulich wrote:
> Mr. Jolly,
> Thank you for the information you have shared with us.
> I know of some nicely deserted mountain ranges down in South America
> that will make great testing locations. Will need an inexpensive
> virtual cockpit with real-time on-board video and instrumentation down-link.
> Is there an online location where I may learn a bit more about this
> project you are working on?
> And, I would like to kindly ask another question if I may: would
> there be any advantage(s) on using a RAM-Jet instead of a regular
> turbine or rocket power for the purely fun purpose of reaching very high
> speeds at a lower cost? I tend to think that the RAM-Jet would use
> less fuel and allow better use of space and weight savings than a
> turbine, therefore providing longer lasting flights at higher speeds.
> I understand that even higher speeds may be achieved with rocket power
> but I wonder about length of flight, range and "throttle" control (if
> we are speaking of solid rocket power, I do not know about liquid or
> gaseous rocket fuel).
> Your input will be greatly appreciated (and anybody else who may want to
> add something in this subject).
> Thank you again.
> Ron Piskulich
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Friday, March 23, 2001 11:52 AM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: [RCSE] Ram Jet?? Supersonic???
>
> Ron,
> You can achieve supersonic speeds with most of the Turbines now available
> the
> 27 pound thrust range. The difficulty comes in matching the turbine to an
> airframe. We have designed a target UAV with that potential. The quick
> dimensions are 6 feet long 7" tube fuselage, and 34" span 9" chord wing. The
> model would weigh 15 pounds at launch. As you can see this doesn't sound
> like
> much of a sailplane. Launching at a slope would require a zero launch rocket
> booster to get to flying speed. If you want to go real fast I might suggest
> that you forget about the DSing and build a high powered rocket boost
> glider.
> My son Chris is heavily involved in high powered rockets, and I am amazed at
> the potential thrust from such a light, simple solution. Either way I would
> suggest a visit to the optometrist and an autonomous stabilization unit. At
> high speeds you can lose sight of them quickly. Have fun and get some
> insurance. Larry Sounds like fun I want to see the video.
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