Moderators: richierich, ua900, PanAm_DC10, hOMSaR

 
Max Q
Topic Author
Posts: 8571
Joined: Wed May 09, 2001 12:40 pm

Can the F22 accelerate through M1 without afterburners?

Mon Aug 10, 2020 9:54 pm

I understand the F22 can cruise well above Mach one without using afterburners, in other words ‘supercruise’


But, like Concorde is it a profile where they use AB to get through the high drag, transonic region from subsonic to supersonic flight then you deselect them and sustain your speed or does the F22 have enough thrust to get through the ‘sound barrier’ without?
The best contribution to safety is a competent Pilot.


GGg
 
GalaxyFlyer
Posts: 6517
Joined: Fri Jan 01, 2016 4:44 am

Re: Can the F22 accelerate through M1 without afterburners?

Tue Aug 11, 2020 12:11 am

I don’t know, but I wouldn’t be surprised if it could. I was waiting to go at the end of Edwards’ runway watching a test F-22 depart in basic engine with an F-16 in chase. The F-16 was 8b fill blower and slowly losing out. Impressive power.
 
HaveBlue
Posts: 2172
Joined: Fri Jan 30, 2004 3:01 pm

Re: Can the F22 accelerate through M1 without afterburners?

Wed Aug 12, 2020 3:48 pm

GalaxyFlyer wrote:
I don’t know, but I wouldn’t be surprised if it could. I was waiting to go at the end of Edwards’ runway watching a test F-22 depart in basic engine with an F-16 in chase. The F-16 was 8b fill blower and slowly losing out. Impressive power.


What is '8b fill blower'? I assume you meant full blower but what is 8b?
 
GalaxyFlyer
Posts: 6517
Joined: Fri Jan 01, 2016 4:44 am

Re: Can the F22 accelerate through M1 without afterburners?

Wed Aug 12, 2020 4:47 pm

Auto correct again, “full blower”, can’t say about the ‘8b.
 
744SPX
Posts: 288
Joined: Mon Jan 27, 2020 6:20 pm

Re: Can the F22 accelerate through M1 without afterburners?

Thu Aug 13, 2020 7:13 pm

Max Q wrote:
I understand the F22 can cruise well above Mach one without using afterburners, in other words ‘supercruise’


But, like Concorde is it a profile where they use AB to get through the high drag, transonic region from subsonic to supersonic flight then you deselect them and sustain your speed or does the F22 have enough thrust to get through the ‘sound barrier’ without?


I'm pretty sure it can, although its possible the most fuel efficient way to do it is still to use afterburner for a few seconds...
 
art
Posts: 3587
Joined: Tue Feb 08, 2005 11:46 am

Re: Can the F22 accelerate through M1 without afterburners?

Sat Aug 15, 2020 8:13 am

744SPX wrote:
Max Q wrote:
I understand the F22 can cruise well above Mach one without using afterburners, in other words ‘supercruise’


But, like Concorde is it a profile where they use AB to get through the high drag, transonic region from subsonic to supersonic flight then you deselect them and sustain your speed or does the F22 have enough thrust to get through the ‘sound barrier’ without?


I'm pretty sure it can, although its possible the most fuel efficient way to do it is still to use afterburner for a few seconds...


I believe that Concorde used reheat to reduce the fuel needed to pass through the transonic zone.

Having checked a source, this articles says reheat was switched on only 2 engines at a time, apparently to avoid the effects of too sharp an acceleration.

https://www.forces.net/technology/aircr ... s-two-time
 
426Shadow
Posts: 236
Joined: Tue Sep 11, 2007 8:13 am

Re: Can the F22 accelerate through M1 without afterburners?

Sun Aug 16, 2020 3:11 am

GalaxyFlyer wrote:
I don’t know, but I wouldn’t be surprised if it could. I was waiting to go at the end of Edwards’ runway watching a test F-22 depart in basic engine with an F-16 in chase. The F-16 was 8b fill blower and slowly losing out. Impressive power.


Well I saw a lot more test flights than you have considering where I work and I can say with certainty that what you was was the exception. The F-16 has no trouble keeping up with the F-22. The only time this might be an issue if is its covered with bags and has more loiter fuel than they really need while the F-22 is slick with relatively low fuel. In a clean config the F-16 will accelerate almost as fast as the F-22.
We are all just fanboys, our opinions don't make or break businesses.
 
Ozair
Posts: 5376
Joined: Mon Jan 31, 2005 8:38 am

Re: Can the F22 accelerate through M1 without afterburners?

Sun Aug 16, 2020 6:44 am

744SPX wrote:
Max Q wrote:
I understand the F22 can cruise well above Mach one without using afterburners, in other words ‘supercruise’


But, like Concorde is it a profile where they use AB to get through the high drag, transonic region from subsonic to supersonic flight then you deselect them and sustain your speed or does the F22 have enough thrust to get through the ‘sound barrier’ without?


I'm pretty sure it can, although its possible the most fuel efficient way to do it is still to use afterburner for a few seconds...

Most fuel efficient and common method is a bunt. Trade altitude for speed and move quickly through the transsonic region before accelerating again using MIL or afterburner.

Who is online

Users browsing this forum: guppyflyer, meecrob and 13 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos