Cutting 57mm holes in the instrument panel.....how to?

On Nov 12, 12:34*pm, bildan wrote:
On Nov 12, 8:43*am, Dave Nadler wrote:



On Nov 12, 10:38*am, Craig wrote:

On Nov 11, 9:42*pm, Bob Kuykendall wrote:

On Nov 11, 9:39*pm, Alia Kuykendall

Sawzall.

Much neater than the chainsaw, but not as cool as a loop of det cord.

Thanks, Bob K.

Oops, that was my post.

Thanks, Bob K.

New aluminum panels can be cut out pretty effectively by waterjet or
laser using a local fabricator. *I think I paid $80 the last time
(aluminum included) and just had to give them the drawing file.

Craig

Aluminum panels are quite dangerous in an accident;
edge removed leg of a friend in a crash.

Please use fiberglass panel with a integral rounded
flange as do all modern manufacturers. If you have
an older glider with an aluminum panel consider
upgrading it (good opportunity to add an SN10).

No kidding here.
Best Regards, Dave

Unless the older glider used the instrument panel as a load bearing
bulkhead.

True: Some may use the panel to help prevent the
rails below the canopy from spreading on impact.
But actually, most gliders of a vintage that uses
aluminum panel have no effective crash-worthiness
anyway. Contact the manufacturer for specific
recommendations if panel bolts to sidewalls,
for pedestal-style just replace the dangerous bit.

Best Regards, Dave