DW
A bit off the original topic, but you did request comments on the traditional Vs constant aspect Forced Landing technique.
I utilise both on a daily basis and vouch for each within context. The standard square pattern is good for a student to learn the basic techniques because it permits the student latitude of convergence on base to fix up a shocker. The student turns onto square base and rolls out, then assesses the aimpoint with wings level. Undershooting is picked up quickly if the aimpoint is moving away (moving up the windscreen and looking flat) on base. It is simple and particularly useful when you are flying an unforgiving aeroplane with a low aspect ratio and poor glide performance. If the wind catches you out on base in these types, you are struggling to make it back to the runway. Hence the first snappy turn onto base.
The constant aspect approach you refer to is ideally suited to an aircraft with good gliding performance so you can finese the technique. A constant angle between your eye and the runway surface is flown - like a final with the aimpoint displaced to the side - and angle of bank adjusted finely to keep the aimpoint in perceived constant spiral plane (helix)to the eye, progressively tracking around as the aircraft turns onto final, terminating as a fixed glidepath aimpoint out the front. With an aimpoint being say 500ft to 1000ft in, the flap then is utilised soley to bring the aimpoint back to the keys. Alternatively, the spiral can be aimed at the threashold throughout, accepting slight IAS increases, and the flap is used as a speedbrake to achieve Vat.
With the chippy's nice wings it must be a good glider and ideal for the later training.
For experienced pilots the aspect technique is excellent if understood and practised frequently.
Cheers