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Old 11-07-2020, 08:32 AM
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I'm wasting my time here.
Old 11-07-2020, 09:17 AM
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Yep, I know how you feel. Been there a couple of times myself.
We already know what you are trying to say.



I get it, Your FA-72 output of .121 HP/CC makes sense to you. For some reason .123 HP/CC from a FA-82 doesn't work for you.



Last edited by Jesse Open; 11-07-2020 at 09:22 AM.
Old 11-07-2020, 10:15 AM
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Originally Posted by Jesse Open
Yep, I know how you feel. Been there a couple of times myself.
We already know what you are trying to say.



I get it, Your FA-72 output of .121 HP/CC makes sense to you. For some reason .123 HP/CC from a FA-82 doesn't work for you.
Not at all, neither number makes sense. The apc 13x6,7 & 8 give inflated numbers when inserted into a thrust/hp calculator due to blade design. Same with the G-Sonic. Notice I didn't post a hp number for my hc 65 turning an apc 13x6?

BTW, my 72 has no problem turning an apc 13x8, seems to like it. Good throttle response and 9550 peak. Has a longer stroke than the 82.

Post Script: If you're trying to point out that your 82 made more hp/cc than my 72 using an apc 13x8, yes it did with that prop.

Last edited by Glowgeek; 11-07-2020 at 10:49 AM.
Old 11-07-2020, 11:03 AM
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Got it, and I always said that I take prop numbers with a grain of salt. Apples and oranges at best.

Using the same props on both engines, the 72 shows it puts out about the same hp per cc as the 82, no big deal. The APC prop doesn't make the 82 "seem" powerful. By using the same props on both, it proves that the power is in line with displacement.
It proves as well that the power band is on a different curve, also no surprise
The real winner here is the oft overlooked FA-65.

I buy props that fly my plane well, not for test stand chest thumping After trying out at least a dozen props, the APC 13-8 has proven to do that job best for me.

I could care less about hoosepower calculation based on presumptuous prop loads.
Do it right, get a torque stand and come up with calibrated bars to spin.
Old 11-07-2020, 11:19 AM
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Uh huh, ain't going there, just trying to run what I brung.

What version of 65 was it that you posted prop/rpm on?
Old 11-07-2020, 12:42 PM
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Just a plain old, used later, low compression. I was planning on making it a donor for the DP, runs too well to mess it up. Will dig up a different parts donor.
Old 11-07-2020, 01:52 PM
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Originally Posted by Jesse Open
Just a plain old, used later, low compression. I was planning on making it a donor for the DP, runs too well to mess it up. Will dig up a different parts donor.
Great number for the plain Jane. The one I had was in excellent mechanical condition, ran very smooth throughout the entire rpm range, very impressive in that regard but wouldn't spin a 13x6 as fast as my 62's. Sold it and made someone very happy. The HC 65 I got from Dave spins the 13x6 450 rpm faster than my 62's.

I can see the DP version being an animal on 20% nitro.
Old 11-07-2020, 04:17 PM
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I have a early FA-62 that probably has more gallons thru it than any other engine I have ever owned, of any size.. I really like that little mill. I will dig it out and set it up behind the same props that the FA-65 ran.

I mentioned elsewhere my late ham radio buddy; Jack, K8BVJ with his FA-65 powered Sig Hog Bipe. It flew amazingly. I really doubt a FA-62 could do it any better.
Old 11-08-2020, 04:00 AM
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I just ordered two of these Fireball Standard glow plugs, I misunderstood that all Fireball plugs were hot plugs. I must edumacate myself to the truth. I will run them in an assortment of Saitos, high compression, low compression, large and little. 4 bucks apiece from Dayton, Ohio. Like most plugs, once out of the package, I'll clueless as to what it is.


Old 11-08-2020, 04:02 AM
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Originally Posted by Jesse Open
I have a early FA-62 that probably has more gallons thru it than any other engine I have ever owned, of any size.. I really like that little mill. I will dig it out and set it up behind the same props that the FA-65 ran.

I mentioned elsewhere my late ham radio buddy; Jack, K8BVJ with his FA-65 powered Sig Hog Bipe. It flew amazingly. I really doubt a FA-62 could do it any better.

Make sure that the 65 wins.
Old 11-08-2020, 06:57 AM
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Pinky Saito Update:

Well I am still waiting for electric power to be restored since losing it on 10/26. The estimate keeps getting pushed back another day every evening. The Pink N Poke has the checkerboard on her tail and is waiting to get the landing gear struts and wing struts covered. If I ever get power back I will get everything is properly shrunk then install the hinges and the pushrods. I take more picktures when the decals are installed and the flight crew is in place.

Mike
Old 11-08-2020, 07:07 AM
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Dang Mike, that's a long time to be on a generator. Longest we went was a week and a half back in 04 after a really heavy ice storm. All maintenance work on power lines stopped here when your power went out, most of our workers are out in OK helping you guys out. Hang in there bud!
Old 11-08-2020, 07:24 AM
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I'm lucky my EU7000i is really efficient, I'm only buying about $20 of gas a day running it 24 hours a day. It has already hit 300 hours runtime mark. Those linemen guys are really staying busy but I have heard they are running short of poles, transformers, and insulators. The outage number only went down from 34K+ to 27K+ yesterday which means they have been slowed down considerably. Friday they dropped it from 77K to 34K. I don't think it is a lack of personnel I thinks its a lack of materials and they are in the areas where their efforts get few buildings restored with the same amount of work. Getting access to the poles in these neighborhoods from the 50s and 60s is a bear. They have been working south of me for at least two days and haven't slowed a bit. A side note I have heard it will take months to get all the broken tree branches picked up and hauled away. The city will have a bumper crop of free tree mulch this year.
Old 11-08-2020, 08:29 AM
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Transformers are the biggest issue. If a Substation one blows, it could take months to get it replaced. The grid is so fragile in some areas that a major electrical storm can knock out huge swaths of the country. They are working to improve it, but could be decades before it is fully redundant. i was reading up on EMP and came across some articles on just how effective it is to take out the grid. The pulse travels at the speed of light down the wires, and can knock out everything up to 100 miles that is connected, and IIRC everything within 20 miles whether connected or not. It would destroy every transformer it touches. Reason I looked into it was to see how much impact one would have on a diesel. My F350 would be screwed, huge paperweight, but my Kubota, unless at ground zero would not. The starter and solenoids would still work, and batteries are not affected. Makes for some interesting reading, especially some of the comments on some articles.
Old 11-08-2020, 08:36 AM
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Originally Posted by Hobbsy
Make sure that the 65 wins.
That is up to the 65 of course I just report the numbers and submit them for others to (mis) interperet.
Old 11-08-2020, 10:16 AM
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Originally Posted by Jesse Open
That is up to the 65 of course I just report the numbers and submit them for others to (mis) interperet.
Is that really necessary? Brings a bad vibe to an otherwise friendly thread.
Old 11-08-2020, 11:46 AM
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Take it easy lol!

It was a very good natured way of saying people could look at the numbers as they see fit . IE: One man's interpretation is another mis interpretation . Hence the parenthesis on "mis"

Old 11-08-2020, 12:25 PM
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Welcome to Club Saito, where Grumpy old men can argue over their toy engines. LOL


Old 11-08-2020, 12:51 PM
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Now I am almost afraid to post the numbers for the FA-62
Old 11-08-2020, 01:02 PM
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Originally Posted by Jesse Open
Take it easy lol!

It was a very good natured way of saying people could look at the numbers as they see fit . IE: One man's interpretation is another mis interpretation . Hence the parenthesis on "mis"
I'll have you know I have a certification in misinterpretation! I can misinterpret anything with ease I don't even need numbers!
Old 11-08-2020, 01:10 PM
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Seems even my comments on (mis) interpretation are, shall we say, subject to mis- interpretation
Old 11-08-2020, 02:32 PM
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Default Out with glow- In with gas

Jim, I didnt forget about your concerns with the weight penalty when replacing an FA100 with an FG21 in a 60 size warbird. Just did it.

I had to add 3-1/2 oz. of weight to the tail to balance out the FG21, larger prop, ignition box, 6.6v LiFe Batt and IBEC. Total added weight was 15-1/2 oz. Sounds like a lot but the flying weight is only 8 oz. heavier due to carrying around half the fuel weight. I also swapped out the mechanical metal/plastic retracts that used a single JR servo to Eflite electric retracts, that could account for a little of the added total weight.

Keep in mind that this is on a nose heavy TF P51 ARF which had already had 1.75 oz. of lead in the tail to balance an FA100. On a plane requiring a lot of nose weight for balance the weight penaly could be much less, if any.

Have to see how it flies but one thing for sure is I'll be able to fly all day on pennies.


Last edited by Glowgeek; 11-08-2020 at 02:55 PM.
Old 11-08-2020, 02:50 PM
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Fuel weight diminishes during the flight. Dead weight is always present.

But "pennies" sure beats the 500 or 600 pennies I usually spend on a days flying. Then again, I usually spend a lot more money on lunch than home brew fuel that day.
Old 11-08-2020, 03:39 PM
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Gary I made a muffler cap for the 220 muffler you sent me, it seemed like a project I could handle and I got one made. Hidden inside are six 4mm exit holes on a much shallower angle than the stock muffler cap. Not intentional, it just turned out that way. So who has a 220 to try it out? If it becomes one of those very large pictures I may be embarrassed.


Old 11-08-2020, 04:03 PM
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Dave
Do you want a couple of Fireball Hot glow plugs?

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