At 07:54 PM 30/04/2007, you wrote:
On the Standard Cirrus Sailplanes web site
http://standardcirrus.org/ down the bottom is a link to early
canopy ejection trials and the design of the Roeger Hook Project , i
wont go into how they did it but the 4 odd video's explain it really well.
Ben
Notice how in the last video once the pilot gets the clue to open by
hinging sideways, the canopy departs easily?
It goes rearwards sure but if the hinges were in place until open it
would depart cleanly. Somehow our friend at DG sees this as a
disadvantage of side hinged canopies when quite severe measures have
to be designed in to get front opening canopies to jettison at all.
He also admits that very few retrofits of the required parts have
been done whereas the side hinged canopies can be jettisoned easily
by a simple change in technique.
Mike
Borgelt Instruments - manufacturers of quality soaring instruments
phone Int'l + 61 746 355784
fax Int'l + 61 746 358796
cellphone Int'l + 61 428 355784
Int'l + 61 429 355784
email: [EMAIL PROTECTED]
website: www.borgeltinstruments.com
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