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Variable Geometry Inlets

Started by KJ_Lesnick, April 16, 2010, 09:58:52 AM

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KJ_Lesnick

April 16, 2010, 09:58:52 AM
When was it first technologically possible to incorporate variable geometry inlets into an aircraft design?  Also, what was the first aircraft in the world to incorporate a VG inlet?
That being said, I'd like to remind everybody in a manner reminiscent of the SNL bit on Julian Assange, that no matter how I die: It was murder (even if there was a suicide note or a video of me peacefully dying in my sleep); should I be framed for a criminal offense or disappear, you know to blame.

Hobbes

#1
April 16, 2010, 02:26:52 PM
The oldest that comes to mind is the SR-71. The inlet shape is a function of airspeed, so controlling it isn't that hard. 1945 electronics should be able to do this.

Gondor

#2
April 16, 2010, 02:48:05 PM
April 1958 Kelly Johnstone made proposals that became the A-12.

The F4H-1 was evolving in 1955.

No idea about Soviet designs but that's the first two "Western" aircraft that I can think of to use VG intakes.

Then again I don't know when the prototype Mirage aircraft were flying as they have a moveable shock cone as well.

Gondor
My Ability to Imagine is only exceeded by my Imagined Abilities

Gondor's Modelling Rule Number Three: Everything will fit perfectly untill you apply glue...

I know it's in a book I have around here somewhere....

KJ_Lesnick

#3
April 18, 2010, 06:03:06 PM
Didn't the Su-7, Su-9, and Su-11 all use variable geometry inlets? 
That being said, I'd like to remind everybody in a manner reminiscent of the SNL bit on Julian Assange, that no matter how I die: It was murder (even if there was a suicide note or a video of me peacefully dying in my sleep); should I be framed for a criminal offense or disappear, you know to blame.
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