DYNAMAX DUCTED
FAN UNIT
The Dynamax ducted
fan propulsion system was designed by leading General Electric
aerodynamicists and Tom Cook of Jet Model Products. Precision machined
parts, the finest carbon fiber plastics and advanced injection molding
techniques have made the Dynamax Fan an industry standard. Years of
proven performance makes this the obvious choice for ducted fan modelers and is
recommended as required equipment by model jet manufacturers around the world.
Engine speeds of 21,000 to
23,000 r.p.m. will deliver upwards of 15 lb. of static thrust with properly
designed flow paths. Many models in the 20 lb. weight range have been
successfully flown with the Dynamax Fan. When correctly assembled and
installed, the modeler can expect years of enjoyment and exciting performance.
Assembled and balanced
versions are the only Dynamax fans available. They require only the
installation of the engine, rotor blade and spinner. Click on the “Accessories
Button” for additional
system support items.
Assembled Dynamax Fan Unit /OS Assembled
Only 250.00
Parts Replacement List
| 601 |
Spinner Screw |
1.10 |
|
614 |
Long Stator Screw - 2 req. |
ea. 0.32 |
| 602 |
Spinner |
10.00 |
|
615 |
Long Stator - 2 req. |
ea. 3.00 |
|
603 |
Rotor Bolt |
4.00 |
|
616 |
Short Stator - 14 req. |
ea. 2.50 |
|
604 |
Rotor Washer |
1.00 |
|
617 |
Turbine Body |
40.00 |
| 605 |
Rotor Cap Screw - 3 req.
|
ea. 0.20 |
|
618 |
Engine Mounting Bolts - 4
req. |
ea. 0.25 |
| 606 |
Rotor Cap
Screw Washer - 3 req. |
ea. 0.04 |
|
619 |
6-32
nut-Long Stator - 2 req. |
ea. 0.10 |
| 607 |
Rotor Cap |
25.00 |
|
620 |
Washer -
Long Stator - 2 req. |
ea. 0.02 |
| 608 |
Turbine
Blade - 11 req. |
ea. 8.00 |
|
621 |
Rotor
Spacer and Collet |
12.25 |
|
609 |
Rotor Hub |
17.00 |
|
623 |
Dynamax Instruction Book |
2.00 |
| 610 |
Rotor
Spacer (specify engine) |
9.00 |
|
624 |
Rotor
Tightening Wrench |
15.00 |
| 611 |
Shroud |
35.00 |
|
|
(Not
included) |
|
| 612 |
Short
Stator Screw - 14 req. |
ea. 0.30 |
|
625 |
Short
Stator Washer-14 req. |
ea. .04 |
|
613 |
Shroud Mounting Flange - 2
req. |
ea. 8.00 |
|
|
|
|
The
OS .91 VR-DF is a high performance engine designed expressly for ducted fan
model aircraft. For maximum performance and longevity, these engines incorporate
a specially developed ABC type piston and cylinder. Construction of the rear
drum valve is molybdenum steel. The carburetor is the OS type 9B which provides
exceptional throttle response.
Fully computerized modern
precision machinery and selected top quality materials are employed in the
manufacture of these engines to insure consistent high performance and long
life.
When teamed with the JMP
Dynamax Ducted Fan Unit and other supporting parts, you can be assured of
maximum performance and reliability at a reasonable cost.
Please contact Tower
Hobbies if you need to purchase an OS .91 Engine
DYNAMAX ROTOR WRENCH
$15.00
JMP’s rotor wrench is
manufactured exclusively for use with the Dynamax ducted fan unit.
Its purpose is to hold the rotor securely while tightening down the front end
hardware. This
voids the need to place excessive pressure on the individual rotor blades and
stator vanes.
PRESSURE VENT $20.00
The pressure vent is
designed to supply pressure to the fuel system by using air velocity from the
spinning fan rotor, rather than tuned pipe pressure. The results are a more
linear pressure rise and the venting of excess fuel into the airflow
instead of the tuned pipe.
IN-FLIGHT” MIXTURE
CONTROL $40.00
More commonly called the
“remote needle valve”, allows for on the fly carburetor adjustments. Just set
it, lock it down, and forget it. Double sealed steel needle and steel seat
guarantee long-life and steady operation. Possible engine displacements are .25
to 4.0.
NOTE: This application requires a separate servo and additional channel.
