F-5, CF-5, T-38, and F-20

[Jeffry Fontaine]

For the wing, I made a different choice that require more surgery for my own F-2à model: enlarging the original wings!...
...But it will need a lot of work to do that!!

If you could source a set of wings from the 1/32nd scale Hasegawa F-5E you could actually do the large wing version in 1/48th scale with a bit of kit bashing and some careful cutting to make it fit.  

[superhornet1015]

Hey All,  Here's a what if for ya'll.  I plan on taking my F-20 and kitbashing it to my F-5F.It's going to take some time to do but when I get it done I'll post a few pics. Have to figure out how to take the front half of the F-5F and mate it to the back half of the F-20.Should be an interesting plane.


                                                                           Pete

[Shasper]

Dude, hack the F front in off right at the aft cockpit wall (by the intakes), and mate it to the F-20 aft end. Dr. Evan can elaborate more on this but thats the common point on both airframes.

Shas

[dragon]

Dude, hack the F front in off right at the aft cockpit wall (by the intakes), and mate it to the F-20 aft end. Dr. Evan can elaborate more on this but thats the common point on both airframes.

Shas

What he said.  This also works with the X-29.
Didn't somebody on this site make a 3 person F-20?

[elmayerle]

Didn't somebody on this site make a 3 person F-20?

It's (slowly) in work since it involves a mix of F-5B, F-5F, and F-20 bits.  As Shasper said, the bulkhead right behind the cockpit is a common interface between the center and aft fuselages of all version of the F-5/F-20 and the various cockpit and nose sections.  The attached diagram from a brochure on a F-20 derivative should help.

[MartG]

A few I did a while back

[MartG]

Did a recce one too

[Archibald]

Got some ideas last night.

What about a F-5 with Jaguar "Adour" engines ?
In brief 
Adour = 3500 kgp
J-85 of the F-5E = 2000kgp
YJ-101's of the YF-17 =  6000 kgp.

Then I thought that a modern F-5 with such power would be... a Ching-Kuo. Sounds interesting... early Ching Kuo with Adours, around 1980 ?

In the end it give a nice lineage of fighters

- F-5E
- Ching Kuo
- YF-17
- Hornet
- Super Hornet.

[elmayerle]

Got some ideas last night.

What about a F-5 with Jaguar "Adour" engines ?
In brief 
Adour = 3500 kgp
J-85 of the F-5E = 2000kgp
YJ-101's of the YF-17 =  6000 kgp.

Dimensionally, though, the use of Adour engines would require a significant resdesign since they are rather larger in diameter than the J85.  The biggest problem in re-engining the F-5 series is finding a suitably-sized engine.  For the modestly enlarged F-5 that the Field Engineering Group at Northrop proposed to their management (it was rejected), the length and wing area enlarged to keep the good lines while bringing wing loading down to the that of the F-5A/B while allowing an additional hardpoint on each wing; power for this proposal was to be two reheated versions of the GE J97.  Northrop did some studies with a couple engine companies about developing a new afterburning turbofan to replace the J85, but the engine companies refused to go beyond that, citing a restricted market.  IMHO, that was short-sighted of them since a dry version of this engine would've been a shoe-in to re-engine you 20-series Learjets and both reduce fuel burn and bring them up to current noise standards.

[PolluxDeltaSeven]

Yum yum!! Do you have any drawing of this enlarged wing? I designed one myself (see last page of this topic) in order to add an additional pylon, but it results in a big wing quite difficult to build from the original F-20's wing (I could scratch build it entirely, but due to the landing gears bays, it could be difficult!!)
Maybe the Northrop design could be simpler (and more realistic!)

[elmayerle]

Yeah, I've got it -somewhere-.  Finding it, though, could be a bit more of a challenge.  I will see what I can do, though, as I remember getting copies of most of the work-up material on that proposal.

[GTX]

That is nice!

Regards,

Greg

[GTX]

Steve's recent superb Israeli F-20 (see http://www.whatifmodelers.com/index.php/topic,19335.0/highlight,israel.html ) made me think - wouldn't the earlier F-5A/F-5E series have been perfect for the Israelis - maybe even instead of the Nesher/Kfir developments.

Regards,

Greg

[Shasper]

My thoughts on the Israeli F-5E/F would be as a supplement to the F-4/Kfir and eventually the F-15/F-16, replacing most of the other legacy types such as the Ouragan, Mystere, Mirage IIICs etc (what numbers of these types that were left anyway), with the F model also doubling as a LIT for the other front line types. If the Israelis went with the F-20, we may not see the development of the Lavi altogether, or at least the singleseat version as both it & the 'Shark were in the same fighter class.

Just my .0002% worth

Shas

[GTX]

Another possible T-38/F-5 user was apparently Japan - in the end they developed the Mitsubishi F-1 and T-2.

Regards,

Greg