Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 25781
Location: Livermore CA USA
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 Posted: Sun Apr 11, 2010 8:37 pm Post subject: First Engine Start - Lycoming IO-390 Purrrrrzzz! |
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Dear Listers,
The first start on the new Lycoming IO-390 from AeroSport went great. No major issues to speak of. The exhaust bolts on the left rear cylinder were a little bit loose, the hall-effect RPM sensors in the mags didn't seem to work, and there was a small fuel leak coming from the fittings on one of the fuel pressure transducers. Other than that, WOW! What a powerful engine! In the video, I only got to about 1/3 throttle and it felt like it wanted to jump off the ground! Really strong sounding and the 4-into-4 Vetterman exhaust really gives the motor a throaty sound. All of the controls (throttle, mixture, and prop) worked as expected. Cycling the prop pitch worked great. Fuel flow was good and I tested feeds from both the left and right tanks. The left and right mags also checked out good as did the kill switch. AeroSport bench ran the engine for 11.5 hours at my request. This should get me well past the critical breakin period. The ease at which it started attests to that as well.
Wow! That's all I've got to say! I can hardly wait to point this baby down the runway and "get 'er done"!
In addition to the usual still-picture fair I normally attached to my log entries, I've now added YouTube videos as well! And - they're in full 1080p HDTV resolution too! When the YouTube player comes up, in the lower right hand corner it will say "360p" by default. Select the highest setting that works on your computer without stuttering (480p/720p/1080p). The HDTV versions are amazing clear. I can hardly wait to get some air-to-air shots.
The cameras are Sony HDR-CX550V and HDR-XR550V units and sport 64GB of flash and a 240GB hard drive respectively. They record in full 1080 HD and Dolby digital 5.1 surround sound. I have the HDR-CX550V mounted on a head rest mount on the back of the pilot's seat and the HDR-XR550V is used for tripod or hand held action capture. The head rest mount is a little too low to see over my shoulder and I've got an extension ordered that should lift it well over the obstruction. I edited the various clips down using Adobe Premiere CS4, which is very nice, btw.
HDTV Videos (Select the 480p, 720p, or 1080p HD Quality Versions!)
First Engine Start
http://www.youtube.com/watch?v=QK-dIxL9aJ8
Testing Fuel Flow Sender
http://www.youtube.com/watch?v=x5NWP9W8pko
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Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Blog
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Matt Dralle
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