Above: A Wren 44 turbine was in the back of
Hal’s FR- 1 Fireball. The kerosene engine added
10 pounds of thrust.
Left: Hal Parenti’s Ryan FR- 1 Fireball is powered
by a radial piston engine in the front and a jet
engine in the back.
Andy Low of ElectroDynamics has
a solution for multiple servo plugs when installing wings:
a servo extension with a multiple plug connector. They are
available in either three-servo plug or four-servo plug connector versions.
Eye candy at Toledo
by Jim Hiller
This year’s Toledo R/C Expo again provided wonderful eye candy on the display tables. Hal Parenti had his latest Ryan FR- 1 Fireball, famously known for power, with one turnin’ and one burnin’. The airplane is
powered by a MOKI 1. 8 engine pulling up front, and a Wren 44 turbine pushing
in the back.
This unique aircraft is scaled after an early attempt at how best to utilize jet
power’s speed potential, without sacrificing the fuel economy and acceleration
provided by piston engines for Navy carrier operations.
The full-scale aircraft is powered by a 1,350 hp Wright R-1820 piston engine
in the front. Jet power is provided by a 1,600-pound-thrust General Electric
J- 31 running on Avgas to simplify fuel management. Ryan Fireballs performed
carrier operations as Squadron VF- 66 before the end of World War II, then later
as Squadron VF- 41. They arrived too late to serve in combat during WW II.
Hal designed and built his 84-inch wingspan Fireball from scratch. It has
1,380 square inches of wing area. The all-up weight with both power systems
is impressive. It weighs 311/2 pounds, which is impressive weight control. Hal
has plenty of experience with
modeling the Ryan Fireball, and
I look forward to this many-time national Scale champion
continuing his winning ways with
this new aircraft.
Also on display was Roy
Maynard’s BAE Systems Hawk,
built from the large Tomahawk
Design kit. It weighs only 44
pounds—impressive for the size. The
Hawk is modeled at a scale of 1: 3. 5
resulting in an overall length of 137
inches (approximately 111/2 feet) and
a wingspan of roughly 106 inches.
Size matters in this lightweight model.
Roy’s aircraft has the beautiful 2009
British Royal Air Force display team
colors of base black with blue exposed
under peeling paint along the side of
the fuselage. It’s a gorgeous and well-executed paint scheme.
One of the items on the vendors’
tables was a multiple connector from
ElectroDynamics—a nice solution
to the many servo plugs we have to
connect on our jet wings (typically
three or four servo connections per
wing panel). Andy Low has packaged
the connector as a plug-in between the
servo extensions from the receiver on
one side then the other side to combine
103 Model Aviation JULY 2014 www.ModelAviation.com