C-17 tactical descent

[hoss183]

A fairly interesting video for those of us used to more sedate descents.
https://youtu.be/khBioU1qFVY

[Wander00]

Hope Ryanair don't try that next time I fly into La Rochelle with them

[ExAscoteer]

I took some cadets for trip with 99 Sqn last year. The high rate descent was very impressive (especially for such a big aircraft) - all 4 engines into reverse thrust at FL190, RoD 20,000fpm. I even came off the floor as the aircraft was pitched nose down.

[salad-dodger]

I guess you had to be there............

[Basil]

Flew a 'Da Nang' approach into Basrah one night in a B747 charter.
Company found out and were not pleased. If you do a lights out tactical approach that means it's a war zone and, if so, then your insurance is invalid :hmm:

[Wander00]

Further to "2" above, sometimes the arrival on terra firma feels like they have.......

[son of brommers]

with reference to #2 above, the old saying about a landing being a crash you walk away from suddenly seemed very true as the Irish SLF 737 did its best to leave its main gear below sea level at MLA.

[MightyGem]

all 4 engines into reverse thrust at FL190
Reverse thrust in flight??

[chiglet]

Reverse thrust in flight??


HS Trident, high RoD, centre engine in reverse...

[megan]

Reverse thrust in flight probably pioneered by the DC-8. Remember a rather rapid let down between thunderstorms at Houston January 1967 courtesy of Delta DC-8 with reverse deployed.

[stilton]

Not to mention Concorde, inflight reverse was authorized, no speed brakes on the
production aircraft.

[KenV]

Reverse thrust in flight??Yes, all four engines can go into reverse thrust in flight. The C-17 also has speed brakes. In speed brake mode the flaps extend to dramatically increase drag, and the spoilers deploy to cancel out the increase in lift caused by the flaps and also further increase drag. This makes possible a tactical descent well in excess of 20,000 ft/min. The idea being to arrive directly over the destination airfield in a combat zone at high altitude and then very rapidly spiral down and land before an enemy outside the airport can drop mortars or other weapons on the runway. It works very well.

And incidentally, besides in flight reverse, the reversers are safe and effective at negative airspeed. Meaning the C-17 can back up on the ground under its own power at max weight, up a 2% slope, into a tail wind. On almost all aircraft you don't want to use the reversers below about 50 knots because of "re-ingestion," where the engines re-ingest exhaust air which can cause severe compressor stalls.

[Pegasus107]

Don't think mentioning cadets, reverse thrust and 20,000 RoD in same sentence is to help cadets getting flying if someone from 2FTS read this 🤐

[RAF_Techie101]

Reverse thrust in flight??

Gdn0465zE4o

[SASless]

I got religion one night in a DC-8 headed towards Oz from Vietnam....when the Pilots needed to get down quick....with some silly explanation about a late clearance from ATC.

I am thinking they simply screwed up and were late starting down....which they made up for in a very dramatic fashion.

[MightyGem]

Yes, all four engines can go into reverse thrust in flight.
Thanks for that.