FAQ’s List

Please note this page is a placeholder until we get time to break these out to separate KB Articles.


Do you ship outside the U.S.?

Due to the complexities and costs of shipping large boxes Internationally, we do not ship outside of the US.

Do you stock cores for specific airplanes or kits?

We carry a few under our Standard Cores.  This list is short because we do not classify cores that we produce as being part of a specific airplane, simply because most of the time it is not specified by customer.  Most of our work is custom and may have been modified in some way.

I broke my ARF!  Can you make a replacement wing?

This can be difficult in many cases.  Today, many ARF (Almost Ready to Fly) airplanes are made in batches in China using manufacturing techniques and materials that we do not have available here.  These airplanes typically to not include plans or any detailed information that can be used to make replacement parts.   We can make almost any wing, but the result will not exactly match the original in materials or appearance and may cost more than the original airplane.

I found a plane that I like on the Internet.  Can you make one for me?

Probably not.  Most designs sold on internet web sites have little or no information available about airfoils, chord lengths and wing span, which are essential pieces of information needed to make a wing.  It is not our business to copy other companies designs, and we do not do this.

What types of foam are available?

We have several types and densities of foam available:
EPS (White beaded Styrofoam) in 1.0#, 1.5# and 2.0# densities
EPP (Expanded Polypropylene) in 1.3# and 1.9# densities

How quickly can I get my cores?

Answer:  Most Quick Order Cores and other web store items will ship in about a week.  Most custom orders are processed in 2 to 3 weeks.

How are cores shipped?

We typically use Fedex Ground for continental U.S. and USPS for HI, AK and PO Boxes.  We can also use UPS if you would like us to charge to your shipping account.

Can you ship to a P.O. Box?

Yes, if package is small enough (under 108″ Girth/Length) for Priority Mail.

How much do cores cost?

This is one of the most commonly asked questions.  The formula for determining cores pricing is complex.  It includes labor, machine time and materials.


The easiest thing to do is to enter values into our Quick Order Cores form to get a feel for cost.

Do you offer discounts?
We encourage volume orders from kit manufacturers, or for club projects by offering discounts that increase with size of the order.  We also will discount repeat orders for cores that are identical to a previous order and shipped to the same address.

What is the CG of xx flying wing?

Measured from nose:

Cheap Shot: 7.25″

Wide Glide: 8.25″

Mother Ship: 14.25″


Current Lead Times: Up to 7 days for EPP sheet and 14 days for Quick Order Cores.