Giant Scale Twins 3973 Nest Avenue, Hospers, IA 51238

(712) 230-3023

Specializing in twin engine remote control airplanes

Specializing in twin engine remote control airplanes

Specializing in twin engine remote control airplanesSpecializing in twin engine remote control airplanes

About me


My name is Jim Oosterhuis, owner and sole operator of Giant Scale Twins.   

From 1993 to 2003, I was working as an Electrical Engineer in California.  It was there that I met Charlie and Bev of Modaire Industries at an RC air-show in 1998, where I purchased a P-51H kit from them after seeing it fly.  Charlie, Bev and I became very good friends, and not long after, we started a new business together called Modaire Hobbies located in Manteca, California.  

In 2003, I moved home to Iowa to the family grain farm, where I live and work today.  

In 2006,  I purchased all of Modaire Industries' molds and tooling  from Bev and Charlie, and started doing business as Giant Scale Twins.   My company is a reincarnation of Modaire Industries, producers of the legendary AeroCommander, F7F Tigercat,   F-82 Twin Mustang and P-51H Mustang; 

Unique and quality twin engine kits that Modaire Industries became very well known for.

My Schedule:

I farm with my parents during the summer months on the family grain farm.  However, in the winter months when the snow is flying, I build airplane kits as Giant Scale Twins.  

That being said, please be patient with me, especially during the summer months!  If I don't answer the phone, please send an email ( and I'll get back to you as soon as possible.   

And, as if farming and kit building doesn't keep me busy enough, I also build and fly full scale.  In 2006, after 1100 hours of build time, I finally finished building a Van's RV-8 shown in the photo above.  

Currently, I'm building another airplane, a Zenith CH-750 STOL.  

About the kits:

The kits are unchanged structurally from the designs and Charlie shipped, and I promise they will be of the same high quality construction.  However, I continue to make improvements where I can to make these easier to build or increase strength, etc., and offer more accessories as I can develop them.  

Every aspect of these kits is hand-made in the USA.  The polyester fiberglass parts are hand-laid to be kept as light as possible without sacrificing strength.  Fiberglass & carbon fiber tape and resin are used to reinforce large fuselage sections.  Wings are hand-cut polystyrene foam, inlaid with aircraft-grade plywood spars and hardwood stiffeners.  Leading and trailing edges and wingtips are balsa stock.  Wings are sheeted with cabinet grade 1/64th Birch plywood (included) using epoxy (I recommend West Systems).  Wings can either be covered with Monocote™ at finish, or laminated with 3/4 oz. fiberglass and epoxy resin  and painted.  Either  technique provides for for fast construction, a beautiful finish and amazing strength.  Included with all kits are:  Fiberglass fuselage(s) and cowls, clear formed canopies / windows; wing joiner hardware (except for the P-51H which has a one-piece wing);  all structural wood and wing skins; detailed assembly manual.

Thanks for your interest!

Jim Oosterhuis

Giant Scale Twins

3973 Nest Avenue

Hospers, Iowa  51238

712-230-3023 cell