armody
Posts: 1423
Score: 114
Joined: 8/30/2005
Last Login: 5/19/2013
From: Louisville,
KY, USA
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Hello Guys,
Last Saturday I went to fly my Yak 54 with DLE20 on it. A week ago I already had a maiden on it which I enjoyed very much. As I spoke to y'all about tweaking the LSN and HSN of the motor. I had made few changes and following things happened on that day within total 3 flights despite I had a plan to have at least 5 to 6 flights on it.
The first flight was good, and at the time of landing, I could not get the plane to land slow as the RPM was at least 2,400 + or -, I had hard time landing the plane, but I managed to land it.
On second flight, I decided to tweak on both LSN and HSN. I turned both of them to the close position and turned both 1/8 turn on both of it, I did not get the right rpm on full throttle. I may have turned it to 2/8 then I was getting a good rpm and sound was telling me it's running right and idle seemed to be running OK. It flew well, and when time came to land the plane, same issue, idle was high, despite I did do some adjustments on my Aurora 9 TX with EPA and throttle adjustments, the plane would come down very hot and I had missed 3 to 4 landings and I had to fly the plane away, finally I made the final approach for landing and ended up land pretty distant which ended up breaking the prop, which was Xoar 17X6 on it. I thought as unfortunately I did not have a back prop except for Zinger 16X6 which is no doubt a crappy prop, but I guess good for bench run or something. As I wanted to fly, I reluctantly changed the prop and installed Zinger 16X6 on it which was there. My LHS is always outta items which I need most so, I have to wait for a week.
Anyway I prepared for the 3rd flight and I knew I had to tweak both HSN and LSN. I started the motor and as I advanced it to full throttle, it would bog down and try to quit, I would pull the stick back and on half to 3/4 of throttle I was getting the sound of WOT and I adjusted the HSN which didn't seem to be a good idea but I got the right sound for the right rpm, and idle was seemingly working OK at that time. I took the plane off, and after 6 minutes, It started sputter on half throttle and on high too, then I felt that now motor is struggle so hard to run and plane started losing the altitude and I kinda knew that it may be overly rich on HSN, as I thought to land it and struggled it to keep it flying and close to the landing approach, here comes the important part DLE20 QUIT IN THE AIR/ DEAD STICK, Can anyone explain it to me? Yak 54 ain't good in gliding, a dead stick makes this plane a dead weight up in there however, I managed to land it and barely itty bitty damaged the landing gear which I've fixed already as Yak 54 120 from Nitro planes didn't go good job on landing gear and the bottom of the plate where landing gear is screwed bolted.
After that I didn't even try to fly it, I saw other people's flying and I called it a day. One of the guy who turned out to be best flier and happens to own a LHS, he said I'd recommend you to use Vess props, Xoar props are OK, since he sells Vess so he was recommending that.
Now when it comes to DLE20 which props are best for it. Xoar, Vess, Bambula all beechwood or APC, MAS nylon props. Why the idle is not getting stable as I want to, upon cranking up the motor it seems to be working fine, but after one or two advancement of throttle, it seems after even 10+ seconds it does not slow it down?
What's wrong with it? I'd appreciate y'all detailed explanations.
Thanks
Mody
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It''s great2 keep flying invariably. Hitec Aurora9 2.4 GHz, Yak 54-120 /XYZ20, Kadet II, U-Sport Kits, MXS-R RCG20 (AMA Mem)
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RE: NEW DLE 20cc Gasser! (Data & Links 1st Post) - 
