Citation's - a bit of past history

[Kagamuga]

A couple of interesting pics in the development of Citations and variations thereof:-


https://cimg6.ibsrv.net/gimg/pprune.org-vbulletin/2000x1290/citation_650_with_citation_x_engine_test_bed_99732a45eb9a0f6 2023c3b5d8ce59db8c1e38e5a.jpg
https://cimg7.ibsrv.net/gimg/pprune.org-vbulletin/2000x939/citation_ii_fan_test_bed_2_45b0383f83460af77d3a5b4fa98daaeae 1da38e2.jpg
https://cimg2.ibsrv.net/gimg/pprune.org-vbulletin/1500x1158/citation_ii_fan_test_bed_f39a699e22119de2237a568e39c30bf1273 c7e74.jpg

[chimbu warrior]

That first photo looks like the Citation III now has all the thrust it needs. Range was always an issue on the type, and I'm guessing the bigger (substantially by the look of it) engine will accentuate that problem.........................

[Kagamuga]

Yes! The C650 III was the long range lower powered version of the VII, the VI was the ultra short range el cheapo version.
The Allison engine as you can imagine is the Citation X engine under development. At the time the C650 had the highest Mmo of any Cessna type in service, therefore making a good test article.
The pusher prop Citation II was purely an exercise to see if Piaggio knew something that Cessna did not already know.

[zanzibar]

How old is that photo of the pusher prop version on the ground?
In the background looks like a C208, the prototype of which didn't fly until the early '80's. This Citation was de-registered in the late 80's or early 90's.

[601]

The pusher prop Citation II was purely an exercise to see if Piaggio knew something that Cessna did not already know.

The Citation IIs that I flew did not have t-tails.
That particular aircraft with the pusher props looks like it has a Citation III fin and tailplane.
It looks like a Citation II wing and fuselage.
With the pusher props the tailplane of the CII family would have been in the line with the prop spinner.

[Duck Pilot]

The version with the pusher props doesn’t look all that bad, any idea what dash number Pratt’s it had in it and what kind of TAS it got along at?

[PPRuNeUser0182]

I'd heard the 750's engine was tested on the 650 but never seen the proof - looks nuts!! :ok: Thanks for posting.

I punched the rego into the google machine and it came up with a couple of other interesting pics:

https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/640x335/citation_650_with_citation_x_engine_test_bed3_c0fa1d2c69d9c9 0899ad1eb290f5e970ca5d4dab.jpg
https://cimg1.ibsrv.net/gimg/pprune.org-vbulletin/1024x752/citation_650_with_citation_x_engine_test_bed2_ee7cd08c4d3e06 46f3b7f84e8ec3caecd7189a1c.jpg