DLA 128cc QUAD Engine Specifications
Parameter
Specification
 
Displacement
.128cc (7.81 ci)
Power
.13.0 Hp @ 7,800 rpm
Static Thrust

.61 Pounds @ 100 M (~328 ft)

.54.6 Pounds @ 1,800 M (~5,900 ft)

Bearings German, FAG  
Ignition Type Capacitive Discharge Ignition (CDI), Auto Advance, Timing: 28-32° (28° Typ) before TDC. (DLA Proprietary, High Capacity) (See Sensor Setting below)  
Ignition Battery 6.4 To 8.4 VDC, 2-S LiPO or 6-S NiMH Unregulated, 2,100 mAh (Typ) (See Manual of Connection Diagram), Do Not Operae Below 6.1 VDC  
Gas Type 87-89 Octane (Regular) (no Aviation Gas)  
Muffler Type Can, (Standard), 2 each  
Spark Plug

CM6 - Iridium (DLA Special), Gap: 0.018" (0.4 mm), Thread: 10 x 0.1 mm, Socket: 14 mm, 4 each

 
Weights
.....Engine
120 oz .... (7.5 lbs), Includes Prop-Washer & Bolts
.....Muffler
8.46 oz .... (0.59 lbs), 2-each, 4.23 oz per each muffler
.....Ignition
12.7 oz .... (0.79 lbs)
.....Sparkplug
2.20 oz .... (0.07 lbs), (4-Total)
.....Standoff Mounts
1.3 oz .... (0.08 lbs), (4 total)
.....Prop Bolts
1.90 oz .... (0.16) (6 total), Class 12.9
 
.....Mounting Bolts 1.60 oz .... (0.1 lbs) (4-total)  
Total Weight
 146.3 oz .... ( 9.14 lbs)
 
RPM Range  1,300 - 7,800 rpm  
RPM Max .7,800 rpm   
Propeller Range .26 x 12,   27 x 10/12,... 28 x 10, . 29 x 10  
Stroke  30 mm .... (1.18")  
Bore .37 mm .... (1.457")   
Compression Ratio  7.6 : 1  
Carburetor Type  Walbro™, Type WT-xxx Series, Authentic  
Muffler Volume

 Can: 64cc ea (3.91 ci), 2 each = 128 cc total,

.Canister: ~ 718 cc each, 2 each = 1,436 cc

 
Sensor, Ignition

Hall Effect, Timing Sensor

. Front Cylinder Bank: 28-32°, (30° Typ) before TDC ........ ..Rear Cylinder Bank: 26-30° , (28° Typ) before TDC

 
Gas : Oil Mix Ratio Break-in: 30 - 40 : 1, Running: 40 - 50 :  
Oil Type 2-Cycle Oil, Carbon-based for Break-in, Carbon or Blend or Synthetic for typical running.  
In-Take Manifold Reed Valves (Area)
Deep "V-Type" 4-Reed Valve Configuration per Cyclinder Bank, (17.15 sq-cm, 2.66 sq-in)
Max Engine Head Temperature

.120° C (248° F), 70° C on Crankcase (158° F)

.(Typical Head Range: 98° - 100° C, @ ~ 90-100° F Ambient)

 
     
DIMENSIONS & BOLTS
 
Mounting Holes  H: 70 mm , V: 80 mm  
..... Bolts, Mounting .5.0 x 0.8 x 55 mm (4-total)  
..... Stand-Offs .15.5 OD x 20 mm (4-total)  
Bolts, Muffler .5.0 x 0.8 x 16 mm (typ), (8-total)  
Bolts, Prop .5.0 x 0.8 x 50 mm, Class: 12.9  
Bolt, Spinner .5.0 x 0.8 x as needed mm  
Prop - Shaft .10.0 mm OD x 40 mm  
 
 See "Tech Notes" / Manual for Dimensioned Dwg
 

Golden Skies R/C Aircraft, Inc.®

Address: 30882 Rivera Place, Laguna Niguel, CA 92677
Info: (949) 378-5998
, Order: 949-378-5998, Fax: (949) 495-5170
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