View Full Version : BFM

11-14-2008, 01:08 AM
One aspect of BFM I've never been able to master in IL2 is the hammerhead. Anyone have any tracks/guides?

11-14-2008, 04:04 AM
Hi na85.

These explain it in clear terms I think.



This is from the second link:
"The hammerhead is considered to be one of the more advanced basic aerobatic maneuvers. It is entered from level flight with approximately 160 knots of airspeed. The pilot initiates a wings level pull from straight and level flight to the pure vertical using anywhere between three and six "Gs". Once the aircraft reaches the vertical, the pilot needs to "freeze" the flight attitude with small, almost imperceptible, movement of all three flight controls to hold the vertical line until the airspeed has decreased to a few knots above zero. Just before reaching zero airspeed, the pilot inputs full left rudder (slight right aileron and forward stick are required as well to correct for torque and gyroscopic effect) to cause the nose of the aircraft to go from pointing straight up to straight down in less than five seconds. The recovery involves applying right rudder to stop the yawing motion of the nose as it approaches the vertical-down position, centralizing the control stick and then allowing the aircraft to accelerate to approximately 120 knots prior to initiating the 4-G recovery to level flight. Ideally, the aircraft should recover to the same altitude and same airspeed but pointing 180 degrees in the opposite direction from the entry heading. Although the Hammerhead is sometimes referred to as the "Stall Turn", a properly flown hammerhead does not cause the wing to stall at any point as the pilot is managing angle of attack throughout the maneuver. By not exceeding what is called "Critical Angle of Attack", the pilot retains positive control of the aircraft at all times right down just above zero airspeed."

Speeds etc. mentioned are relative to the aircraft.

Lesser mortals such as myself may need to feed in a little opposite aileron as you cartwheel around.

Hope this is of use.
Good luck.

11-14-2008, 04:56 AM
I'm sure those speeds don't hold for every plane.
Initiating 4 G pullout at 120mph/200kph... in a warbird?

11-14-2008, 07:57 AM
Hi M_Gunz.

Fighter Combat International, who's web site is featured above, use the Extra 300L. The specs are listed here:


Never Exceed Speed (Vne): 220 kts
Maneuvering Speed (Va): 158 kts
Stall Speed @ 1800 lbs.: 55 kts
Stall Speed @ 2095 lbs.: 60 kts

Weight and Balance:
Standard Empty Weight: 1440 lbs
Gross Weight: 2095 lbs

"The Extra is stressed to +/- 10G's, has a roll rate of 360?/second, and a climb rate in excess of 3200 fpm making it one of the safest and most capable aircraft in the sky."

In the Spitfire V pilot's notes, for looping and half rolls an entry speed of around 300 mph is recommended. I guess more grunt is needed for heavier and aerodynamically compromised combat planes in general.

This leisure/combat thing looks like great fun. Ariel paintball...

11-14-2008, 12:05 PM
Yeah the Maneuver and Stall speeds are dead giveaways aren't they? http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif

The great thing about sims is that you can practice and find out and if you crash then no big
deal, there's not even any fuel cost.

I understand that the Extras are really good aerobatics planes to put it mildly. Extra 300SR
is used in the Red Bull Air Races, it must be faster than the 300L since they went through the
course at 250+mph when I was watching (on TV). I watched as one pulled over 9 G's by meter
looping over from climb to dive to reverse and go back through the course. That pilot won
that race, with gravity that's an over 10 G course change. And yeah I know, the Red Bull Air
Races are barely disciplined Stunts and NOT clean competition aerobatics.

11-14-2008, 02:53 PM
Yeah my problem is that my hammerheads take a LONG time. Not something I'd want to try in combat. But I remember someone here (or on CWOS maybe) talking about how he uses the hammerhead to great success in the 190.

11-14-2008, 03:58 PM
I managed to hold a good one in a p-47. I just let the plane fall backwards pointing straight up for about 5 seconds then it smoothly nosed over. Only been able to do it once though. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif