ULTRA PRECISION PRODUCTS
ULTRA PRECISION CYLINDERS & VALVES
WELCOME TO THE WORLD OF REALISTIC
MOTION CONTROL
We have developed a range of control valves and accessories
to make any retract system work in a realistic manner.
All our valves feature EXHAUST ONLY SPEED CONTROL to ensure smooth and repeatable retraction cycles.
All our valves feature EXHAUST ONLY SPEED CONTROL to ensure smooth and repeatable retraction cycles.
The speeds of all functions are adjusted
with built in needle valves and are totally independent.
An added
feature is that whatever speed you select it will remain constant
from
the minimum to the maximum operating pressure of your particular system
U.P.2 RETRACT AND DOOR CONTROL VALVE FOR P51 MUSTANGS
This valve features automatic door control and exhaust only speed control,
not only for the struts but also for the opening and closing of
the doors.
This valve does NOT require a special servo, any standard
servo can be used.
This is because the automatic sequencing is built
into the valves
Specification
Single speed control for leg 3 - 10 seconds recommended
Dual speed control for doors 0.5 - 3 seconds recommended
Single air inlet 30 - 200 pounds
Four outlets for legs
Four outlets for door cylinders
Standard servo actuation 0.3 inches travel. Slow servo not required.
Size 1.94 x 1.18 x .62 inches
Weight 2.3 oz.
Single speed control for leg 3 - 10 seconds recommended
Dual speed control for doors 0.5 - 3 seconds recommended
Single air inlet 30 - 200 pounds
Four outlets for legs
Four outlets for door cylinders
Standard servo actuation 0.3 inches travel. Slow servo not required.
Size 1.94 x 1.18 x .62 inches
Weight 2.3 oz.
Sequence of operation
Strut in the up position: Strut in the down position:
Down selected: Up selected:
Servo moves spool Servo moves spool
Door opens Door open
Retract lowers Leg raises
Leg locked down Leg locked up
Door closes Door closes
U.P.3 RETRACT AND DOOR CO
VALVE FOR P47
This valve is similar to the U.P.2; the difference being that the doors
stay open when the struts are in the down position.
Specification
Dual speed control for legs 3 - 10 seconds recommended
Dual speed control for doors 0.5 - 3 seconds recommended
Single air inlet 30 - 200 pounds
Four outlets for legs
Four outlets for door cylinders
Standard servo actuation 0.3 inches travel. Slow servo not required.
Size 1.94 x 1.25 x .62 inches
Weight 2.4 oz.
Sequence of operation
Strut in the up position Strut in the down position
Down selected: Up selected:
Servo moves spool Servo moves spool
Door opens Leg raises
Retract lowers Leg locked up
Leg locked down Door closes
Door stays open
U.P.4 SECONDARY DOOR CONTROL VALVE
Dual speed control for legs 3 - 10 seconds recommended
Dual speed control for doors 0.5 - 3 seconds recommended
Single air inlet 30 - 200 pounds
Four outlets for legs
Four outlets for door cylinders
Standard servo actuation 0.3 inches travel. Slow servo not required.
Size 1.94 x 1.25 x .62 inches
Weight 2.4 oz.
Sequence of operation
Strut in the up position Strut in the down position
Down selected: Up selected:
Servo moves spool Servo moves spool
Door opens Leg raises
Retract lowers Leg locked up
Leg locked down Door closes
Door stays open
U.P.4 SECONDARY DOOR CONTROL VALVE
For use with the U.P.2 valve to provide control of secondary doors which need to stay open when the gear is down even though the main doors are shut;
such as the tail wheel doors on
Mustangs and strut doors on the B25.
Specifications
Requires NO mechanical link, just airlines
Dual speed control for doors 0.5 - 3 seconds recommended
Single air inlet 30 - 200 pounds
Four outlets for door cylinders
Size 1.94 x .8 x .62 inches
Weight 1.52 oz.
Sequence of operation
Strut in the up position Strut in the down position
Down selected: Up selected:
Servo moves spool on U.P.2 Servo moves spool on U.P.2
Door opens Leg raises
Retract lowers Leg locked up
Leg locked down Secondary door closes
Secondary door stays open
Specifications
Requires NO mechanical link, just airlines
Dual speed control for doors 0.5 - 3 seconds recommended
Single air inlet 30 - 200 pounds
Four outlets for door cylinders
Size 1.94 x .8 x .62 inches
Weight 1.52 oz.
Sequence of operation
Strut in the up position Strut in the down position
Down selected: Up selected:
Servo moves spool on U.P.2 Servo moves spool on U.P.2
Door opens Leg raises
Retract lowers Leg locked up
Leg locked down Secondary door closes
Secondary door stays open
U.P.6 VARIABLE PRESSURE BRAKE CONTROL VALVE
This valve has been designed to control the air pressure to your brake system.
The pressure being proportional to servo travel
Specification
Input pressure 200 psi
Output pressure 0 - 100 psi proportional to servo travel
Main housing size 1.50 x .85 x .375 inches
Weight .9 oz.
Servo travel .53 inches
Servo force for maximum pressure 4.5 pounds (26 oz./inch servo with output
hole .3 inch from center
CUSTOM ENGINEERING SERVICE
If you need a custom retract, cylinder or any other engineering service
please contact us for your personal quotation. Whether 12
pound jets or 160 pound monsters,
we would be pleased to help solve your
engineering problems.
We have 35 years experience in the radio control
industry. No job is too big or too small.
DOOR AND CANOPY CYLINDERS
For our standard cylinder range please see specification sheet. 03/04
ULTRA PRECISION TECHNICAL SERVICES LIMITED
DOOR AND CANOPY CYLINDERS
For our standard cylinder range please see specification sheet. 03/04
ULTRA PRECISION TECHNICAL SERVICES LIMITED
5/16 x 3/4 - $25.25 7/16 x 1" - $28.75
5/16 x 1" - $25.25 7/16 x 1 1/4 - $30.00
5/16 x 1 15/16 - $26.50 7/16 x 1 1/2 - $30.50
5/16 x 1 1/2 - $27.75 7/16 x 2 - $30.75
7/16 x 3 1/4 - $35.50
7/16 x 4 - $36.50
5/16 x 1" - $25.25 7/16 x 1 1/4 - $30.00
5/16 x 1 15/16 - $26.50 7/16 x 1 1/2 - $30.50
5/16 x 1 1/2 - $27.75 7/16 x 2 - $30.75
7/16 x 3 1/4 - $35.50
7/16 x 4 - $36.50