A sequence of shots for a incident on launch:

The right wing has been lifted. The pilot appears to be holding onto the hose on
the right side and lifting the cart. The cart is heading off to the pilot's left
side and not on the track that the cart should be taking behind the Dragonfly.
The tow rope is pulling the pilot to the right. The prevailing wind had actually
been a little bit from the left, but thermals can come through the field.

Two or more seconds (nine photos) later the pilot is no longer holding on to the
hose on the right hand side (and doesn't appear to be holding on the left hand
side either) as the cart has been dropped:

The glider is also now tipped forward as you can see by the fact that the tail
is high off the back cradle. The pilot is pulled by the tow rope all the way
over to the right in the control frame. You can see the tow rope still connected
to him. The cart has gone way off to the left. The base tube appears to have
slid off the left front cradle.

If you look at the left side of his base tube you can see that the left white
wheel is below the height of the front tube of the cart. It may be caught under
the tube. The glider is tipped up, and the base tube is just above the front
cradles on the left (and quite a ways above on the right). This allows the left
wheel to drop down to the side of the left cradle to below the front tube of the
cart. If the wheel is caught under this tube, the pilot has no chance to
recover.

The photos are being taken at a rate of 3 to 4 a second. This is the next photo.
The glider's control frame is still jammed on the left side on the cart with the
white wheel below the cart tubes. The glider and the cart are going in
different directions. The pilot is reaching out to break his fall. He fractures
his elbow with a dislocation and fractures his wrist.

Two photos later. The left white base tube wheel is jammed into the left corner
of the cart. with the base tube on top of the front cart tube.

If the angle on the cart was too high, he would have been stalled before he was
able to be pulled forward and had the keel raised up to get out of the stalled
angle.

Photos by Bob Grant.

The pilot writes:

The right wing was lifted early on tow. By holding on to the cart,
the added weight of the cart and with weight shift, I tried to get the right
wing down and get the glider back in line with the tow. The desired result never
happened. The glider continued to turn left and I considered my release but felt
that with the glider banked as it was, removing my hand from the base tube would
accelerate the turn, possibly spinning the glider. With everything happening so
fast, I wasn't aware until later that my wheel had hooked under the launch cart
while the glider was turning left.

My injuries upon initial medical examination indicate a fractured left elbow and
fractured left wrist.

The keel of the glider was bent at the control frame attachment point and broken
in two behind the control frame attachment. Mark Dowsett can confirm this as he
helped me pack up my glider. Any other damage to the glider will require a more
detailed inspection which I'm unable to do. I will contact Mark to request his
assistance with this.

I haven't downloaded the video from my glider camera yet but will do so, and
I'll also ask my brother for his phone video.

I agree to sharing information USHPA safety coordinator for the purpose of
improving safety in the sport of hang gliding.