Spar drilling position

General Panther Building Discussion
Forum rules
A forum for Panther aircraft builders and Enthusiasts. Two simple rules: Play nice and use a real name
Post Reply
psalter
Posts: 146
Joined: Sun May 19, 2013 6:50 pm
First Name: Paul
Last Name: Salter
State or Province:
Location: Green Cove Springs, Florida

Re: Spar drilling position

Post by psalter »

What Tony shows is essentially the way I did mine. You shouldn't have to use much force on the drill, if you do, you probably need a new bit. If worried about bending, you can put a 3rd block in the center, bit harder to shim.
Paul Salter
Team Panther
Engineer and Builder

Sacpilot
Posts: 76
Joined: Fri Jun 07, 2013 7:46 pm
First Name: Christopher
Last Name: Braun
City or Town: Rocklin
State or Province: CA
Location: Rocklin, CA
Contact:

Re: Spar drilling position

Post by Sacpilot »

Thanks Tony! I couldn't remember if only two blocks on either end were enough support to prevent flex. That looks super easy and leaves room for stack clamps.
Christopher Braun
CFII - Owner Norcal Flight Center
EAA Lifetime #808722
Panther SN-052

User avatar
Tony Spicer
Posts: 304
Joined: Sun May 05, 2013 7:35 am
First Name: Tony
Last Name: Spicer
State or Province:
Location: Wilmington, NC 7NC1

Re: Spar drilling position

Post by Tony Spicer »


Sacpilot
Posts: 76
Joined: Fri Jun 07, 2013 7:46 pm
First Name: Christopher
Last Name: Braun
City or Town: Rocklin
State or Province: CA
Location: Rocklin, CA
Contact:

Spar drilling position

Post by Sacpilot »

Started marking drill holes on spars with pen last night. But what is ideal position on table for drilling? If I keep the spar vertical on the table (like in the wing), the entire spar is in contact with a level surface, but it is hard to drill with bit horizontal.

If I place the spar on its side, there is a taper on the outboard end on the only side that doesn't have stuff sticking out of it, so I would need to put shims under the outboard end to support it, so the entire structure is level.

Thoughts from those who have drilled them already?
Christopher Braun
CFII - Owner Norcal Flight Center
EAA Lifetime #808722
Panther SN-052

Post Reply