TEOCLSAWKI

[Chuck Matheny]

OK now..imagine this baby with about 30 degrees of engine out-thrust and maybe just a wee bit more power doing the stunt pattern. ...?
[notice the use of reverse ailerons while doing the turns...]

[Teodorico Terry]

The reversed ailerons in the turns are probably due to adverse jaw.  Not unusual, most planes have it to a degree but this one is pretty extreme.  Neat video.

[Dan McEntee]

The reversed ailerons in the turns are probably due to adverse jaw.  Not unusual, most planes have it to a degree but this one is pretty extreme.  Neat video.

     When flying that slow and turning that tight, you need to get max lift on that inboard wing or it will stall and spin in. Reversing the aileron on the inboard wing in the turns helps keep that inboard tip up. That was how Paul McCready was able to win the Kramer Prize for man powered flight. The Prize rules called for flying a figure 8 course one mile in distance, requiring left and right hand turns, and clearing an obstruction of 10 feet at the beginning and the end of the flight. Lots of people could fly the 1 mile in a straight line but the problem was in turning, where the inboard tip would lose all airspeed , stall, and drop to the ground. McCready was an experienced model airplane builder/ flier in both indoor and outdoor free flight models, and also in full scale soaring. He just applied what he learned from those endeavors and mechanically washed in the inboard wing when turning to increase it's angle of attack and increase it's lift to hold that wing tip up.
  Type at you later,
   Dan McEntee

[redout]

One of Paul McCready's quotes :

"Anyone who's not interested in model airplanes must have a screw loose somewhere"

[Teodorico Terry]

Learned something today, makes sense.  Thanks!

[Chuck Matheny]

That was a great explanation for the need for those "anti stall devices" ..!
It's impressive to think that someone could have anticipated that this is the way that this plane would need to be flown.
I would have crashed that sucker...then made a set of bigger ailerons..then crashed it again....

[Gerald Arana]

The reversed ailerons in the turns are probably due to adverse jaw.  Not unusual, most planes have it to a degree but this one is pretty extreme.  Neat video.

FWIW:  The "reverse" aileron is to stop the continued roll from the initial control input.

Just thought I'd clear that up.

Jerry

PS: What Dan said. Guess I came to the party a little late.......

[Chuck Matheny]

FWIW:  The "reverse" aileron is to stop the continued roll from the initial control input.

Just thought I'd clear that up.

Jerry

PS: What Dan said. Guess I came to the party a little late.......

 Gerald.. I like  your explanation...because the sequence of events you describe should give a person  time on the maiden voyage to react instinctively....  in time to save the plane.
There still would have been some serious head scratching on my part afterwards  to make sense of it.

No wonder every historical look at the DR 1 I've ever seen mentions that this plane was full of handling quirks but never went into any detail as to what they were.