Convair F-106 Projects

[BlackBat242]

My numbers came from the engine sections of Jane's Aircraft (many years of volumes) and other such sources, so I wouldn't be surprised if they are a little off.

The airflow and thrust numbers you have are for the earlier F100-P-100 & -200 originally put in the F-15 & F-16 in the 1970s - the numbers I gave are for the improved higher-thrust F100-P-220 & -229 introduced in the late 1980s in those aircraft as I noted.

 

[Trident]

Everything I´ve seen on the former is in between about 250 and 260 lb/s (e.g., Tommy Thomasons excellent book on the F8-U3 gives 261 lb/s @ 26.000 lbf of thrust) and around 230 lb/s for the latter, with a thrust of about 23,800 lbf.
Upwards of 120 lbf per lb/s of airflow is something you wouldn´t get till about 1990.

Yep, turbine inlet temperatures would've been too low.

 

[FrankM]

My numbers came from the engine sections of Jane's Aircraft (many years of volumes) and other such sources, so I wouldn't be surprised if they are a little off.

The airflow and thrust numbers you have are for the earlier F100-P-100 & -200 originally put in the F-15 & F-16 in the 1970s - the numbers I gave are for the improved higher-thrust F100-P-220 & -229 introduced in the late 1980s in those aircraft as I noted.

Well, again, all references i´ve seen (but that list might obviously not be all-encompassing) credit the basic -220 engine with the same thrust (about 106 kN / 24 klbf) as the earlier versions (some sources only give 22 klbf for the -100 / -200).
Thrust levels you provided would only be possible with the later -220P, introducing significantly higher PR by adopting more advanced fan technology.

(ETA: I should have said, I´m not talking about the -229, where you are obviously quoting "canonical" values. Regards!)

 

[blackkite]

Hi!

蛇乃目伍長の「エアフォースの英国面に来い！」 Mk.2 : 3発型F-106

blog.livedoor.jp

Around 1975, a rectangular cross-sectional intake was prototyped, but it was never installed on the actual F-106.
It seems that wind tunnel test data was taken using the 1/20 model of this intake.
N616NA (later N816NA) was used for this research until about 1976 and is now on display at the Virginia Air & Space Center.

 

[blackkite]

They are Boeing STOL F-106 projects;


http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800075253_1980075253.pdf

Excellent find!
I add larger images.

https://ntrs.nasa.gov/api/citations/19800075253/downloads/19800075253.pdf

 

[blackkite]

Hi! Front view. Almost same scale.

 

[blackkite]

Hi! Plan view. Almost same scale.

 

[blackkite]

Hi! Side view.