Flight Spoilers

[SkyWestCRJPilot]

Are there any transport category jets that don't have flight spoilers/speed brakes?

 

[TransMach]

DC-8 ... spoilers are for ground use only albeit that UAL acceptance crews tried them in flight ... reportedly a bad experience.

 

[LR25]

DC-8, but they can put the inboard engines in reverse if they need help getting down (yes, it is approved for it). Its also a bumpy ride.

 

[T-Gates]

Weren't the thrust reversers approved for inflight use on early model DC-8's since the spoilers were ground-use only?

The original DC-8-10 prototype had fighter style speed brakes aft of the wing root, mounted on the fuselage.

--03M

 

[dsee8driver]

DC8

We can use inboard reversers beyond flight idle. We can bring ALL 4 on reverse IF the gear is down but only pull power on inboards. Due to recent company policy change we can no longer use reversers unless it's an emergency. Late decent or ATC's problems are not considered emergencies. We have encountered this problem with ATC quite a bit in which they want you to go fast and stay high and then slow down and descend. Unfortunately we respond by asking him/her to pick which they prefer. They are so used to Boeing at the busy places that when we come with our truck they expect the same.
The racket the reversers create in flight is incredible. I'm surprised the pylons can handle the stress.

C

 

[LR25]

Pylons are suppost to leak fuel, right?

There aint a 70 series that ATI has that dont leak, and most of the 60's too. I believe that was one of the big contributors to the new ops for the reverse in flight, its rediculously hard on the pylons, especially with a CFM out there.

We had a 70 lose half of the translating ring going into ATL one night, someone north of the airport had a big suprise in there yard.

 

[Tooslow]

DO JET 328

The 328Jet-300 does not have in flight spoilers. Only for the ground..........................It sometimes can be hard getting down.

 

[Russ]

dsee8driver

How did the use of reverse thrust compare to flight spoilers on other aircraft, which was more effective? When you were able to use them, were they used as often as the boards? That must be a pain in icing conditions to not be able to use them.

 

[Loafman]

Re: DO JET 328

The 328Jet-300 does not have in flight spoilers. Only for the ground..........................It sometimes can be hard getting down.

It sometimes can be hard going fast too.

 

[dsee8driver]

dsee8driver

How did the use of reverse thrust compare to flight spoilers on other aircraft, which was more effective? When you were able to use them, were they used as often as the boards? That must be a pain in icing conditions to not be able to use them.

In terms of effectiveness, reversing is more "effective" . Just in reverse idle with inboards you drop out of the sky pretty quick. When we were allowed to use them you had guys that used them quite a bit on descent, specially into JFK and SJC. Others still did not want to put the 30 year old bird through the stress. I always tried to plan the descent and warn controllers when they gave us a ridiculous crossing with a speed. As far as icing is concerned we never had a problem with not being able to use them. We stay away or run away!

 

[SkyWestCRJPilot]

Does the DC-8 have spoilerons?

Are there any other transport category jets without flight spoilers/speed brakes?

I've noticed F-28s and Avro RJs have the tail part of the fuselage that splits open into a speed brake. Can these be used in flight or just on approach?

Do all Airbuses and Boeings have flight spoilers?

 

[SkyWestCRJPilot]

anyone?

 

[WrightAvia]

You are correct...

the clamshell looking spoiler on the back of the RJ85 is deployable in flight.

 

[LR25]

The DC-8 has flight spoilers only with the gear down and I believe about 45 degrees of yoke travel.

They also have low speed ailerons and high speed, the entire aileron moves during low speed and during high speed the ailerons split and just the inboard section moves.


You can also fly the 8 with no hydrualics. You use the servo tabs during a hydrualic failure for the ailerons and rudder. The only powered surfaces on the 8 are the ailerons and rudder, the elevator is all cable with a hydrualic stab, which also can be powered without hydrualics through electric motors.

You dont call it a Douglas cable car for nothing.

 

[Typhoon1244]

I've got an even better spoiler-related question: is my CRJ the only jet that will let you go most of the way down the final with the boards hanging out before you get a warning (bell, chime, horn, etc.)?

Not saying I've ever done that, you understand. ("Geez, why's this thing taking so much power? Must be the heat...")

 

[SkyWestCRJPilot]

My CRJ has been known to do that before too;-) If you see the other guy flying and he forgot to put down his spoilers you can press and hold your radar altimeter button. When it tests and runs down to 300 feet it will give the same caution message as if it were at 300 feet on final. Or you could just tell the other guy, "Hey, your spoilers are still up." I understand that on some jets the spoilers automatically go back down if you reapply power. As you know that wouldn't work on the CRJ when you're in icing and have to keep the power up to keep the cowls warm but at the same time you need to come down and slow down. That would be pretty sweet if we could deploy the thrust reversers in flight like the DC-8.