RA Cores

Low cost computer cut custom cores by modelers, for modelers

Due to demands on our time external to the core business, we are no longer able to provide custom core cutting. We will continue to provide our standard products as listed below. (as of 3/1/98)

Current Products

R/C Combat Gremlin kits:

The Gremlin was developed in New England by Eric Henderson and has been flown by several clubs since early 1991. Most recently, it was featured in the February 1994 R/C Modeler as a kit review as well as the original December 1992 R/C Modeler magazine construction article. Under agreement with Mr. Henderson, we market four levels of kit. Cores only for $12 with the fuselage and spar locations precut, a short kit for $20 which includes the cores and a precut PVC fuselage with instructions and patterns for all the wood parts, a full kit for $35 which includes all the wood parts, most cut to size, and an almost ready-to-cover version for $75 with the wing and fins prebuilt.

This video show's Dave Beach launching his Gremlin at a contest in 2005.

The Gremlin is used in single design R/C combat contests around the country but is a fun, durable plane to fly and has become a standard "hot dogging" plane at many New England flying fields. If you can handle an aileron trainer, you can fly the Gremlin. Fun, low cost, durability, and short (about 6-10 hours) building time make this plane a winner. For .25 to .40 size engines. We do have dealer pricing for quantity orders placed on Hobby Shop letterhead. Distributor inquiries welcome.

NERCCA Combat Newsletter:

We currently produce a newsletter for the New England R/C Combat Association (NERCCA) which come out about one a month during the contest season. It is available for free by email by sending a subscription request to rc-combat-lovers-request@world.std.com with the message "subscribe" in the body. Past issues are available in the online archive as well as a Gremlin combat contest calendar.

2 Meter glider wing upgrades:

We offer full replacement wing kits for upgrading either the Gentle Lady or Spirit to a more competitive intermediate level glider. These popular gliders are great to learn on and we offer a low cost upgrade to keep them flying so you can develop your intermediate skill levels. The wing planform is a 24" inboard panel with a 9" constant chord and a 15" tip panel tapering to a 7" tip. These wing kits include 3/8"x1/8"x18" basswood spars with vertical grain balsa shear webs, balsa leading edges, full 1/16" balsa sheeting, fiberglass tape for the center section and trailing edge, and instructions for creating a bolt on polyhedral, aileron, flap or full house wing. S3021 or SD7037 airfoils available from stock or your choice of airfoil in the same planform for the same price with a possible slight delay. $35.

We get a lot of questions on airfoil selection. My feeling is that you can't go wrong with the SD7037. It penetrates well and has a good speed range. I personally have flown the S3021 with polyhedral and flaps and the SD7037 in a tiplet planform with flaps and ailerons and prefer the SD7037.

Quickee 500 cores:

We offer low cost, quality 25" panel Quickee 500 cores for $8 per set. We're using the Dodger airfoil that is popular in NEPRO competition. The cores are cut to use 3/32" top sheeting and 1/16" bottom sheeting.

Availability:

For our standard products we ship within 1 weekend of receipt of payment.

Print out and fill in this handy HTML or PDF order form today!

Payment and shipping and handling:

Checks and money orders are accepted (Canadian orders please provide an international postal money order in US funds). No credit cards. Shipping is by USPS where possible and is a single $5 per order. COD is available for $6 additional and small CODs (1-3 kits) are sent USPS Priority (2 day) mail. Larger orders need to be sent UPS.

Email us today.

Last updated: Saturday May 7, 2005