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-   -   What engine needs 6,000,000cfm to operate? (https://www.offshoreonly.com/forums/general-q/337048-what-engine-needs-6-000-000cfm-operate.html)

Cole2534 05-04-2016 07:52 AM

What engine needs 6,000,000cfm to operate?
 
The Pratt and Whitney J58-P4's in an SR-71 at full tilt.

I dropped this link here because I think you gearheads will appreciate it.

http://sploid.gizmodo.com/5511236/th...r-71-blackbird


“One day, high above Arizona , we were monitoring the radio traffic of all the mortal airplanes below us. First, a Cessna pilot asked the air traffic controllers to check his ground speed. 'Ninety knots,' ATC replied. A twin Bonanza soon made the same request. 'One-twenty on the ground,' was the reply. To our surprise, a navy F-18 came over the radio with a ground speed check. I knew exactly what he was doing. Of course, he had a ground speed indicator in his cockpit, but he wanted to let all the bug-smashers in the valley know what real speed was 'Dusty 52, we show you at 620 on the ground,' ATC responded. The situation was too ripe. I heard the click of Walter's mike button in the rear seat. In his most innocent voice, Walter startled the controller by asking for a ground speed check from 81,000 feet, clearly above controlled airspace. In a cool, professional voice, the controller replied, ' Aspen 20, I show you at 1,982 knots on the ground.' We did not hear another transmission on that frequency all the way to the coast.”
mind blowing.

SB 05-04-2016 08:11 AM

Awe, just awe.

I, as many others, read all about these. I have not seen this article. Thank you !


It is a race this jet will not let us lose. The Mach eases to 3.5 as we crest 80,000 feet. We are a bullet now - except faster.

I realize that I still have my left hand full-forward and we're continuing to rocket along in maximum afterburner.
:Score-101010:

teamsynergy 05-04-2016 08:31 AM

nice read

Cole2534 05-04-2016 08:55 AM


Originally Posted by SB (Post 4435264)
Awe, just awe.

I, as many others, read all about these. I have not seen this article. Thank you !



:Score-101010:

You're actually who I had in mind when I posted it. lol

oconnor marine 05-04-2016 08:57 AM


Originally Posted by SB (Post 4435264)
Awe, just awe.

I, as many others, read all about these. I have not seen this article. Thank you !



:Score-101010:

this aircraft will actually fly mach 4.4 also above 120k feet. I have the service manual for this.

dereknkathy 05-04-2016 09:01 AM

On a similar note, i read somewhere a top fuel dragster at full throttle is using as much fuel as a 747. I dunno if at full throttke or cruise...this from a single 500 CI engine.

SB 05-04-2016 09:01 AM


Originally Posted by Cole2534 (Post 4435277)
You're actually who I had in mind when I posted it. lol

Should I be scared ? :readinghelp::lolhit:

Cole2534 05-04-2016 02:03 PM


Originally Posted by SB (Post 4435280)
Should I be scared ? :readinghelp::lolhit:

Nah. More like SB will love this ****, it's ridic.

Knot 4 Me 05-04-2016 02:23 PM


Originally Posted by dereknkathy (Post 4435279)
On a similar note, i read somewhere a top fuel dragster at full throttle is using as much fuel as a 747. I dunno if at full throttke or cruise...this from a single 500 CI engine.

Read where they dump so much fuel into each cylinder that they are on the verge of hydrolocking.

14 apache 05-04-2016 06:48 PM

Was on TV last night my favorite plane. Love the ram jets there is a video of them testing the engines on a stand. Think they used a 8 cylinder Oldsmobile to start them.


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