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Search: Posts Made By: Erwin Z
Showing results 1 to 10 of 10
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Forum: Gas Engines
11-23-2015, 07:30 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

nice plane!!, thanks for the info, I am getting...

nice plane!!, thanks for the info, I am getting similar RPM with a wooden 18x8 as your results, I guess similar thrust as well. lets see it on flight next weekend
Forum: Gas Engines
11-22-2015, 08:03 PM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

I advanced the timing all the way, tested with a...

I advanced the timing all the way, tested with a wooden Turnigy prop 18x8 and got 7300 rpm, didnt had the time to fly but thrust feels good now
Forum: Gas Engines
11-19-2015, 07:59 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

I started with that one because is what the...

I started with that one because is what the manual recommends, I also have wooden props 18x8 and 17x8, will test ussing a scale, advance timing, and check valve gaps.

by the way what is the...
Forum: Gas Engines
11-19-2015, 07:27 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

without the cowl I was barelly getting 6200, now...

without the cowl I was barelly getting 6200, now with cowl installed, 5800, I guess I can get more than that, will do some adjustments
Forum: Gas Engines
11-18-2015, 12:12 PM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

Prop is a MA Clasic series, 18x10

Prop is a MA Clasic series, 18x10
Forum: Gas Engines
11-18-2015, 10:34 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

last Monday I did maiden my 25% Piper Cub with...

last Monday I did maiden my 25% Piper Cub with the NGH, so underpowered but steady and sonds great, the motor has no adjustments except of needle carburated. next, I am going to check timing, valve...
Forum: Gas Engines
11-12-2015, 09:22 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

Altitude might be the factor in my case, I am...

Altitude might be the factor in my case, I am located at 5,600 feet over sea level
Forum: Gas Engines
11-11-2015, 11:59 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

other than timing did you check anything else?...

other than timing did you check anything else? valve gap ? I found that H needle adujst is very critical, it does not tolerate more than just a little tiny turn or the RMP drops significantly
Forum: Gas Engines
11-11-2015, 09:13 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

well it sounds reasonable based on your numbers,...

well it sounds reasonable based on your numbers, I saw one video on youtube where someone got 6800 or so with a 18x10 prop and mentioned he moved the timing.

I have read randomly this thread,...
Forum: Gas Engines
11-11-2015, 08:24 AM
Replies: 1,678
Views: 460,427
Posted By Erwin Z

Rpm

hello,

after 3 tanks consumed on the ground I am planning to maiden my 25% Hangar9 J3 this coming weekend, my concern is the max RPM, with a MA 18x10 classic series, I get roughly 6200 rpm at WOT,...
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