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ORIGINAL:JediJody
<u>The DLE20 requires 32:1 minimumfuel/oil ratio</u>, read the manual. We administrate the DLE warranty for Aeroworks, if your engine has a failure and inspection reveals that the factory recommended oil raio could have prevented it it would not be covered under warranty. <span class="info">

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ORIGINAL: a1pcfixer

Recapping the bits &amp; pieces of info on this new engine, here's the
DLE 20cc gas engine details (misc updated info added).......


<span style="color: rgb(0, 0, 255);">[Basic Info]</span>

Advertised weight: 29.2 oz with ign. and muffler
Prop range: 16 X 8 to 18 X 6
Rear Carb
Beam style mount
DLE20cc mfg stated - compression ratio 10.5:1
Tower Hobbies - compression ratio 7.6:1


<span style="color: rgb(0, 0, 255);">[Dimensions]</span>

Motor mount bolt spacing is 1'', case width is 1-7/8''

Center to center spacing on engine bolts is 2.400"

Distance from firewall to prop washer is 5-11/16''

From the center of the rear mounting hole to the edge of the open choke valve is 2-5/16''

Distance from propeller hub to the front of the cylinder: 42 mm

Width of cylinder at exhaust port: 56 mm

Distance from the center line to the top of spark plug cap: 120 mm
(with spark plug cap fully inserted).

Prop shaft size : M8 x1.0 mm (w/two nuts)

<font color="#0000ff">[Muffler]</font>

Stock muffler dimensions;

2.260" tall <u>@ end caps</u> - 3.800" <u>incl exh pipe</u>
1.100" thick <u>out from exh port of eng</u>
2.050" <u>wide @ end caps</u>

Pitts style muffler (optional);

Jtec wrap around muffler.......

J'tec Muffler Dimensions.....

<span style="color: rgb(0, 0, 255);">[Ignition info]</span>

Stock sparkplug is a made in China CM-6 type (DLE 3)
Valley View R/C will include true NGK/CM-6
Electronic auto advance ignition
Ignition is a new model (#3- or- #4) and special designed for this engine.
DLE recommended voltage range 4.8-6.0 volts
A 4-cell NiMh/NiCd of 1650-2000mAh is a good starting point

</span>

<font color="#0000ff">[Ignition current consumption + ign voltage issues]</font>

Ignition draw + Voltage issues......

Ignition current consumption.....



<font color="#0000ff">[Prop Data]</font>:

APC Sport 16x7 9000 RPM 14lbs. 7oz.
JXF Beech 16x8 8300 13lbs. 10oz.
JXF Beech 17x7 7970 13lbs. 12oz.
SY 16x8 8500 13lbs. 5oz.
SY 17x8N 8200 14lbs. 9oz.

Vess 17x6 14lb. 8oz. - Great throttle response and crappy tach showed 8549RPM
Vess 17x8 14lb. 0oz. - Great throttle response only slightly less RPM than 17x6
Vess 18x6 14lb. 3oz. - Above average throttle response, may be perfect when fully broken in
Vess 16x8 13lb. 9oz. RPM through the roof (by ear) and instant throttle response spools up like an electric motor!

Zinger 16x8 - stinks, no power, way low on thrust
APC 17x4W 3D prop - decent but the idle transition was terrible, 9700 rpm!
Xoar 16x8 - Good prop but not as much thrust on the high end as the next one...
Xoar 17x6 - Hands down the best prop so far. Great punch out of hover, great top end, improved low end but more to come on this....

MA K-series 15x8 2 blade- 13lbs 11oz @ 9750 rpm.
MA K-series 15x10 2 blade- 12lbs 13oz @ 8400 rpm.
Xoar 15x8- 13lbs 5oz @ 9000 rpm.
The MA 15x8 and Xoar 15x8 have unbelievable throttle response

MA K-series 15x6 3-blade 13.0lbs @ 9100 rpm

NO thrust numbers for 4-blade props....YET!



<span style="color: rgb(0, 0, 255);">[VIDEO's]</span>

[link=http://www.youtube.com/watch?v=lCHXY6_w6RY]Jody Haack - test flight video......[/link]


[link=http://www.youtube.com/watch?v=SZRdtZxxQP0]Test run of DLE20cc......[/link]


[link=http://www.youtube.com/watch?v=bBwqL9AIJ1U]First bench run (mpascualslp).......[/link]


[link=http://www.youtube.com/watch?v=kkwr_jc9HVA]and the engine response after 1 hour (mpascualslp)......[/link]


FUNTANA 125 WITH DLE 20.....




<span style="color: rgb(0, 0, 255);">[Photos]</span>

DLE20cc engine dissasembled photos......

Exhaust diverter.....

Link to ALL photos on this DLE20cc msg thread......



<span style="color: rgb(0, 0, 255);">
[Interesting comments]</span>

same mount size as OS 1.20

a 20cc is a drop in replacement for .90 to 1.20 size four stroke

more power than a CRRC Pro 26 or a Saito 1.25 (Saito FG-20/gasser)

20cc = 1.20 c.i.
30cc = 1.80 c.i.


The Jtech {muffler} is supposed to be quieter {than the stock one}
and that is important to me

When propping aerobatic planes the most important engine aspect to
consider {is} the torque curve, peak torque comes in at approximately
3/4 of the peak HP RPM, so you want a prop that loads the engine in
a manner that takes advantage of that RPM band, typically these are
the larger props in an engines acceptable use range.

prop the engine for the performance you want for the airframe it's
mounted on, forget about the "break in prop" they are unnecessary


<span style="color: rgb(0, 0, 255);">[Warranty]</span>

Valley View R/C; 1 year
Tower Hobbies; 2 years


<span style="color: rgb(0, 0, 255);">[Ordering info....]</span>

[link=http://www.valleyviewrc.com/DLE-20cc%20Gas%20Engine.htm]Valley View RC.....[/link]


[link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&amp;I=LXAEPW&amp;P=ML]DLE20cc @ Tower Hobbies.......[/link]


<span style="color: rgb(0, 0, 255);">[Owners manual]</span>

[link=http://images.rcuniverse.com/forum/upfiles/22988/Ig11581.pdf]DLE20cc Factory Manual.....[/link]


[link=http://manuals.hobbico.com/dle/dleg0020-manual.pdf]DLE20cc Tower manual.....[/link]

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ORIGINAL: w8ye

When is it going to be available?

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