HKS Ownership & Maintenance

[jaimesadasalinas]

Since both old problems I used to encounter in the old Cessna and Piper Lycoming turbo powered GA seem to have been solved ( do not know about the newer versions ) in this HKS turbo engine, then, besides the price issue, the only other possible reason not to buy a turbo version would be not making sufficiently long flights to merit the extra cost
The rule of thumb is to climb no more than one third of the trip time
True airspeed increases about 2% per each one thousand feet of altitude if power does not decrease
At what density altitude does power decrease down to the 75% level in the turbo version of the HKS ?


Enviado desde mi iPhone

El 15/01/2011, a las 04:02 p.m., thundergul@aol.com escribió:

[blaswichk]

With a 503 that would be about 160 watts, if I remember right, and about 80-120 watts would be available for most use.. The landing light can be the single most power hog, so I have just built a taxi light/landing light, using a 20watt high output LED. So far it only measures a little over 1 amp at 12.6 volts, and is pretty bright, but I will be ground testing it for maximum current when being charged by the alternator. The EIS doesn't draw much, and the GPS or hand-held radio either. That leaves the nav lights, and the new LED types don't draw much power either. I chose to stay with the old incandesent type that are rated for 21 watts each, as I had one already. I'm also going to build a LED tail-light, which will only take a couple of watts. You know what? I'm going to hook up my multi-meter for amps and load everything up to see what happens. I'll keep you posted.

kb

[blaswichk]

Hi Mark,

Nice to see your post's on the site. I love sharing info, and learning from others, and I think that we fly one of the funnest planes around. I will post some pictures of my new landing light project. I got lot's of light with not much power using a high output LED.

Kess from Camano Island

[fgayford]

I agree 100 %.
As I was saving up for my first plane (4 years) I looked at every ultralight out there. I went through every build up and report that I could find. As I knew that I wanted a tanduim seating there was no question what plane to buy. Every time I go out to the hanger and open the door and look at my plane I say to myself, Thats the most beautiful plane I have ever seen It flys like a rocket, handles like a sports car.
Fred
PS But that is only my opinion for what it is worth.

[cossitt.alan]

another thing to keep in mind for the Turbo HKS and that is the power required to run the fuel injection pump and computer. On my Hirth engine, that is about 6 amps (12 volts). My guess is that this will be about the same on the HKS assuming one pump and computer combo.

I know the HKS has redundant fuel injection pump and computer (two pumps, two computers -- which is one of the reasons for the high price of the engine) but I don't know if the second pump is running all the time (+5 amps or so) or is automatically switched on when there is a failure detection. The two computers are probably running all the time with some sort of take over/voting system in place to add reliability.

Good question for Mark B. on how do these computers and pumps work when only one computer or pump is needed (normal operation).

-Alan

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