EXAMPLE 4Greetings gang and Happy New Year! I've been away on vacation and have recently gotten back home.
Here's another situation demonstrating application of various principles laid out already.
Here is the link to the AH Film snippet:
http://thetongsweb.net/412th/film45_spit_slower_spd1.ahfThe situation was me trying to chase down a Yak in my P-51B near the deck at moderate speeds. The Yak leads me to a waiting Seafire who tries to jump me. The film snippet starts at this point.
Frame 1In Frame 1 the Seafire is above me. I have a choice to make in my pursuit of the Yak. If I continue in my current flight path the vertical separation between myself and the Seafire gives the Seafire turning room to make a lead turn which he starts to take advantage of. To take away that turning room, I pull up and point my nose at his which initiates a merge.
Frame 2At the merge I have choices to make. I notice that the Seafire driver is savvy. Instead of continuing a diving turn the Seafire reverses and pulls up in a vertical turn which is a sign to me that the pilot might realize the effect of gravity on stretching out a turn if the Seafire would have continued downhill. Recognizing that I'm low on airspeed and that I'm probably in a performance envelope where the Seafire will easily out turn me and remembering the maxim that in a nose-to-nose turn the smaller radius dominates I reverse my direction and dive away with WEP on. As you can see by the image this has the effect of creating more a less a nose-to-tail turn.
The Seafire is still on my tail while the Yak is turning somewhere ahead of me. With bandits in different directions and recognizing that I don't have the energy to maneuver against both in series I judiciously make use of my Runstang's speed to extend
. Essentially I judge that I don't have options to be effective against both aircraft at once and need to build energy quickly to regain options.
The extension results in the Seafire staying on my tail and closing slowly while the Yak loops around. This puts both aircraft on my six which actually now reduces my problem. More on this concept some other time in a different thread regarding Air Combat Maneuvering (ACM) - 2 or more aircraft working in unison. With them both on my 6 and not separated by much distance between them I can essentially treat them as if I'm working one aircraft.
About near the 50 second mark I decide it's time to gamble and try and create some massive closure and angles problems for the bandits by initiating a series of violent, max-g barrel rolls.
Lucky for me the Yak breaks off but the Seafire hangs on and is able to take out my oil in a snapshot. All is not lost however as I able to get the Seafire slightly out of phase with me with his fuselage not aligned with mine.
I then try the next trick up my sleeve which is to gamble on reducing airspeed by chopping throttle. Remember that in a nose-to-nose situation turn rate and radius aren't always the deciders of advantage. If separation distances permit then speed becomes a factor. Recall the following diagram:
When two aircraft are abeam and are separated by less than the turn radius of the greater turn radii then the aircraft with the least airspeed gains the advantage. (This is infact a specific case of the objectives in a flat or rolling scissors which is the aircraft with slowest forward relative velocity forces the other aircraft out in front. More on the scissors case later.)
I chop throttle and use propeller drag and dump full flaps to reduce airspeed as much as possible. The situation is not quite the textbook abeam situation but I recognize that it is close enough. At around 1:22 mark the picture looks like this however:
As can be seen above the fight has now pretty much evolved to the text book setup where the slower forward velocity gains the advantage. To demonstrate how this whole sequence plays out the following is an animated GIF from about the 50 second mark onward (done just for you CAP1
)
This is almost an extreme case because I'm going so slow in the P-51B that I'm barely even flying and not able to do anything but the slightest level of bank so that I seem to be more or less flying straight ahead. However the Seafire still spurts out in front of me because of the separation distance and nose-to-nose principle. I'm unable to convert it for a shot but the Seafire in attempt to force me out ahead of his 3/9 line cuts so much airspeed that he's not able to recover from his snapshot attempt and proceeds to lawn dart it.
I'll put some more examples up as I get the time to do so.
Tango, XO
412th FS Braunco Mustangs