Passing of an era-The T-38 is going to be replaced

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davparlr

Senior Master Sergeant
3,296
658
Mar 23, 2006
Southern California
In March, 1961 the Air Force received the world's first supersonic trainer, designed to prepare Air Force pilots for the new century series aircraft, the F-100, F-101, F-104, F-105, and the F-106s. It was a small sleek plane with two toy-like engines, each 46 inches in length, 18 inches in diameter, weighing 396 lbs (all without AB). For comparison, the F-100's engine, the J-57, was 244 inches long, 39 inches in diameter and weighed 5175 lbs. But the little plane was fast, it would go Mach 1.2 without a shudder, one would only know he was flying faster than sound by looking at the Mach meter. And could it climb. It broke the world's time to climb record to 40,000 ft at 90 seconds, to be beaten by the F4H less than a month later. But still, it was only a trainer! As years passed, the fast, agile, predictable little plane became affectionally called The White Rocket.

I first climbed into the cockpit of the T-38 in the spring of 1970, over 48 years ago. It was not a high climb, which is fortunate since I have a bad case of acrophobia and get queasy above a couple of feet. After the pudgy, tough, and underpowered T-37 (would it really take off in the hot Oklahoma summer?) the T-38 seemed like climbing out of a Nova and getting into a Corvette. Things happened fast in the T-38, run the throttles up to Mil, check gages for correct engine performance, release brakes, throttles Max, check nozzle position indicator swing that indicates after burner light off, and away you go, rotate, slap the gear up because you are about the exceed the gear door speed limitations of 250 kts.

Some things I remember. Clouds passing vertically in a demonstrational burner climb - requiring 10,000 ft to perform a loop - crossing the shock wave of lead while flying supersonic formation, like crossing the bow wave of a ski boat - flying final a 180 mph - watching your airspeed while in extended trail formation, it was so easy to go supersonic which was forbidden - when low and slow on final, power, power, power, NEVER, NEVER, get behind the power curve on a plane that barely has wings. In my opinion T-38 was easy to fly and very responsive, but you could not be ham-handed. It would roll at 560 degrees/second. Confidence and ability was required. On my cross country we flew to Pensacola Naval Air Station, the home of naval aviation, which was about 2 miles from where I grew up. It was a real ego trip to taxi the sleek T-38 past the fat, goldfish looking T2Bs (North American T-2 Buckeye - Wikipedia) that the Navy was training in (if a Flight Surgeon had not failed to sign my flight physical, I would have been flying one of those T2Bs intead of the T-38). Only five fighters came down in our block of 52 pilots, and, although I finished in the top 25%, I ended up flying the C-141, a great plane in its own right (I was only slightly disappointed), but I will always be glad and proud that I got to fly one of the world's great aircraft, the T-38.

Some roles the T-38 has supported
Advance USAF pilot training
Air Base support aircraft
Astronaut training, including space shuttle landings
AF aggressor aircraft
Navy aggressor aircraft
NASA flight test support aircraft
Multipe foreign usuers

I was always concerned that they would someday replace the T-38 with a less capable and exciting aircraft but looks like they did the right thing and got a brand new, and exciting, on paper anyway, aircraft!

Boeing Wins $9.2B T-X Trainer Contract: Low Price, High Risk

I certainly hope they do not turn the T-38s into target drones. It would be cool if they put them up for sale!
 
Just think fuel bill
I would imagine that if you can afford the airplane, you can afford the fuel. The engines are small and the aircraft is very clean. According to some sites fuel usage is slightly less than 2 miles/gallon. Not bad. However, I am not sure you can reasonably take off without afterburner, which gobbles fuel. I do know that the plane will nudge Mach 1 in mil power. On my pilotage navigation run, where I was suppose to identify ground items like towns, football stadiums, railroad line, etc, the instructor was in a hurry to get home and set the power to full mil. We were doing close to Mach 1 which made it difficult to do pilotage "here comes a town, let's see there is one road, now,...oops gone!" Normal Cruising speed is .88 to .9 mach. I'm sure there are some people with money would like to fly down the runway at a show at high mach, with a waiver, of course.
 
There was a guy who collected a lot of surplus T-38 parts and built one; it appeared in various TV shows and commercials. By the time he had one built he had accumulated enough parts to build another one, if anyone wanted it; I do not know if anyone ever took him up on the offer.

The T-38 was based on Northrop's N-156F Freedom Fighter, a successful attempt to go the other way when each new jet fighter was larger and heavier than the last. But buying the T-38 probably was a mistake. Supersonic flight is overrated for training and I think that the next trainer will not be so fast.
 
True how very true, and I suspect each and every one of us wishes that lucky person is us.

Totally different context but my brother in Chicago owned a Ford Thunderbird for a while. We did some sums and worked out that to fill it with petrol in the UK would cost him £150 a tank.
 
I'm not sure an aircraft that has been militarily operational for 59 years (over half the years man has been flying) and eagerly used by many nation's forces and other-than-Air Force US agencies, a mistake. While you are right that supersonic airspeed was not that important in our training, we only flew two supersonic flights, one demonstration of performance and one supersonic formation flying, the T-38 was very instrumental in transitioning into high wing load, fast flying and fast landing aircraft. The type of aircraft that were just evolving. The TX aircraft, which was just procured as a replacement to the T-38, has performance numbers, at least released performance numbers, very similar to the T-38, including supersonic performance.
 
I loved watching the NASA astronauts coming into Los Alamitos with their T-38s. They'd be flying in from various points like Houston, and from Los Al, they'd drive a rental up to JPL Pasadena.

It was a great looking bird.
 
It was a small sleek plane with two toy-like engines, each 46 inches in length, 18 inches in diameter, weighing 396 lbs (all without AB). For comparison, the F-100's engine, the J-57, was 244 inches long, 39 inches in diameter and weighed 5175 lbs.

However, the T-38 (and the F-5) always did have afterburners mounted on their J85s.
The J85-GE-5 of the T-38, with its afterburner, weighed 584 lb, was 104.6" long, and was 21" in diameter at the afterburner. It produced 2,680 pounds thrust with the afterburner shut down, and 3,850 pounds thrust with full afterburner.

The J57-P-21 of the F-100C & later models produced 10,200 pounds thrust with the afterburner shut down, and 16,000 pounds thrust with full afterburner.
The J57-P-420 of the RF-8G produced 11,650 lb pounds thrust with the afterburner shut down, and 19,600 lb pounds thrust with full afterburner (and weighed 4,840 lb).
 
How did the engines do with ice?
Read that the engines were easily damaged by ice ingestion.
 
Very sad to see the T-38 going. I'm 57 going on 58. When I was in single digits, I had a lot of hot-wheel cars, but I also had a plastic F-5/T-38 (not sure which) that was roughly the same scale as the hotwheels. That T-38 was "my" private aircraft. I would drive my Beatnik Bandit "home", then take off in my T-38. Having a supersonic general aviation aircraft was a lot cheaper then.
 
How did the engines do with ice?
Read that the engines were easily damaged by ice ingestion.
It didn't. IIRC we were not suppose to fly through 2 ft of icing conditions. Compressor blades looked like razor blades to me. I don't remember any engine failures in one year of pilot training. The T-37, on the other hand, with is centrifugal compressor, could handle anything. One was abandoned and actually landed in the desert with engines running, just sucking up everything including mesquite bushes, or so I was told. Anyway, we didn't worry about rain rates or icing.
 

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