Northrop P-530 / P-600 / P-610 / YF-17 Design Evolution

[Boxman]

Here is a Northrop promotional film posted yesterday (23-April-2020) to YouTube by Periscope Film.

The circa-1978 film depicts the YF-17 Cobra's trip to, and demonstration (flown by Test Pilot Hank Chouteau) at, the 1977 Paris Air Show, as well as at NAS Oceana. The high-AoA pass that has been part and parcel of every F/A-18 flight demo I can recall seeing is shown here for good measure.

Of course, by this time the program had moved into another phase at this point, so the aircraft is referred to as the "F-18 Hornet prototype," and the film is entitled "F-18 Hornet Prototype - Odyssey 77."

YouTube: Periscope Film - Northrop F-18 Hornet prototype at Paris Air Show 1977 "ODYSSEY 1977" 81794

 

[Sundog]

Thanks, It was cool seeing all of the footage from Paris, besides just the YF-17.

 

[Archibald]

Here are scans of the rest of the art images in the YF-17 folder in that collection.

View attachment 622506

Thump ! (sounds of my jaw hitting the ground, Wile E. Coyote style)

That artwork is such beauty !!! Above picture now my new computer wallpaper.

 

[The Artist]

Another piece of YF-17 to F-18 transition artwork found in the Museum's collection. The file name is the McDonnell Douglas photo number.

 

[sferrin]

Here is a Northrop promotional film posted yesterday (23-April-2020) to YouTube by Periscope Film.

The circa-1978 film depicts the YF-17 Cobra's trip to, and demonstration (flown by Test Pilot Hank Chouteau) at, the 1977 Paris Air Show, as well as at NAS Oceana. The high-AoA pass that has been part and parcel of every F/A-18 flight demo I can recall seeing is shown here for good measure.

Of course, by this time the program had moved into another phase at this point, so the aircraft is referred to as the "F-18 Hornet prototype," and the film is entitled "F-18 Hornet Prototype - Odyssey 77."

YouTube: Periscope Film - Northrop F-18 Hornet prototype at Paris Air Show 1977 "ODYSSEY 1977" 81794

Interesting that that YC-15 has two different sized engines there at 3:49. Anybody know anything about that?

 

[aim9xray]

Interesting that that YC-15 has two different sized engines there at 3:49. Anybody know anything about that?

It is the first example of the CFM-56 to fly; in the number one position. CFM-56 was one of the two "10-tonne" engines proposed for production C-15A/B (the other being the Pratt JT10D).

 

[Boxman]

Here is a Northrop promotional film posted yesterday (23-April-2020) to YouTube by Periscope Film.

The circa-1978 film depicts the YF-17 Cobra's trip to, and demonstration (flown by Test Pilot Hank Chouteau) at, the 1977 Paris Air Show, as well as at NAS Oceana. The high-AoA pass that has been part and parcel of every F/A-18 flight demo I can recall seeing is shown here for good measure.

Of course, by this time the program had moved into another phase at this point, so the aircraft is referred to as the "F-18 Hornet prototype," and the film is entitled "F-18 Hornet Prototype - Odyssey 77."

YouTube: Periscope Film - Northrop F-18 Hornet prototype at Paris Air Show 1977 "ODYSSEY 1977" 81794

Interesting that that YC-15 has two different sized engines there at 3:49. Anybody know anything about that?

Funny you should ask, in addition to aim9xray's post above, see post and video at the link below. Coincidentally, Periscope Film posted this YC-15 film about two weeks after the YF-17 film:

https://www.secretprojects.co.uk/threads/advanced-medium-stol-transport-amst-and-its-predecessors.512/page-5#post-391390

 

[RAP]

YF-17 cutaway. Interesting comparison to a similar drawing of the P-630 I posted in 2012, post 73 page 2.

 

[Mark Nankivil]

Anyone evercome across a YF-17 to F/A-18A drawing showing the size comparison?

Enjoy the Day! Mark

 

[Silencer1]

YF-17 cutaway. Interesting comparison to a similar drawing of the P-630 I posted in 2012, post 73 page 2.

Thanks for nice picture' sharing!
Note, how vertical stabilizier moves forward, in the process of fighter jets' developement

 

[TomS]

Anyone evercome across a YF-17 to F/A-18A drawing showing the size comparison?

Enjoy the Day! Mark

File:Northrop YF-17 and McDonnell Douglas FA-18 top-view silhouette comparison.png - Wikimedia Commons

commons.wikimedia.org

 

[dannydale]

Reminds me of a Greg Goebel vectorsite drawing, TomS.

 

[TomS]

Reminds me of a Greg Goebel vectorsite drawing, TomS.

Which is exactly what it is, if you follow the link and check the source info.

 

[dannydale]

Reminds me of a Greg Goebel vectorsite drawing, TomS.

Which is exactly what it is, if you follow the link and check the source info.

Awesome! Always loved vectorsite!

 

[Mark Nankivil]

Anyone evercome across a YF-17 to F/A-18A drawing showing the size comparison?

Enjoy the Day! Mark

File:Northrop YF-17 and McDonnell Douglas FA-18 top-view silhouette comparison.png - Wikimedia Commons

commons.wikimedia.org

Thanks Tom - planform did not change much but it sure got bulkier in the vertical...

Enjoy the Day! Mark

 

[BillRo]

I have been scanning some old slides and came across some slides of the Yf-17that were being thrown in the trash when the F-18L was cancelled. They show some demonstration weapons loadouts for F-18A development. The earlier ones with the aircraft in silver paint are from 1975 while the camo paint is from March 1976. Here are the 1975 images

 

[BillRo]

The 1976 Images are here; note tip-mounted AIM-7 Sparrows.

 

[perttime]

I saw this on beyondthesprues. Does it fit somewhere between F-5 and YF-17?



It says Advanced Low Cost Fighter, and the type is referred to as N386-21

 

[overscan (PaulMM)]

No, that's later, 1988 study for a low cost fighter. See Flying WIngs and Radical Things by Tony Chong. AIM-120 and ASRAAM in the loadout is a small clue

 

[hesham]

From Air Enthisiast 1976.

 

[hesham]

From Flightglobal 1973.

 

[ivran]

Any drawing or 3view, P-610 Cobra,single engine project?

 

[ivran]

only top view on page 1,

 

[ivran]

witj semy-circle inlet,down side

 

[hesham]

From Flightglobal 1973.

From the same source.

 

[overscan (PaulMM)]

Any drawing or 3view, P-610 Cobra,single engine project?

Top view in Tony Chong's book Flying Wings & Radical Things P.191 and painting P.192. Model pics in this topic.

 

[ivran]

Tank you

 

[Deleted member 2278]

Belgian Air Staff specified their preference for the P-530 over the Lockheed Lancer & Mirage F.1 with GD's YF-16 not even in the running in 1973! Quite the reversal.

State Dept cable 1973-102909 : State Department : Free Download, Borrow, and Streaming : Internet Archive

State Dept cable 1973-102909

archive.org

A US appraisal of the Dutch position. Major takeaways are concerns over J101 high development costs and irritation at French "hard sell tactics":

State Dept cable 1974-33158 : State Department : Free Download, Borrow, and Streaming : Internet Archive

State Dept cable 1974-33158

archive.org

 

[Deleted member 2278]

The Shah interested in YF-17 production!

State Dept cable 1974-146075 : State Department : Free Download, Borrow, and Streaming : Internet Archive

State Dept cable 1974-146075

archive.org

 

[Archibald]

Makes some sense, dassault was putting tremendous pressure in the fall of 1973 but Belgium had been passably irritated by the Mirage V sale of 1967, plus technically wise the Mirage F1 was already outdated... even with the M53.
I red somewhere the French (Dassault) proposed an Alphajet - F1 - Mercure (SABENA) package, but only the trainer carried the day.

 

[td_07]

I saw this on beyondthesprues. Does it fit somewhere between F-5 and YF-17?

View attachment 657342

It says Advanced Low Cost Fighter, and the type is referred to as N386-21

Is it just me, or does that looks a lot like the F-CK-1?

 

[Boyington]

NORTHROP P-530 COBRA 1971 Design

 

[hesham]

From Aviation Magazine 1971.

 

[hesham]

From Aviation Magazine 1971.

 

[RAP]

Some more pictures from the Northrop P530 Advanced Tactical Fighter Mockup Review 1969.

 

[sferrin]

 

[sferrin]

I saw this on beyondthesprues. Does it fit somewhere between F-5 and YF-17?

View attachment 657342

It says Advanced Low Cost Fighter, and the type is referred to as N386-21

Reminds me of the F-CK-1.

 

[MadRat]

YF-17 and early F/A-18A are both in Mobile AL at the USS Alabama museum.

They are nearly identical in size and shape.

 

[Dew]

http://crgis.ndc.nasa.gov/crgis/images/0/04/TACT.pdf

 

[bagera3005]

my work