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Seidel 7-70 radial: Help me decide!

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Old 08-14-2010, 07:19 AM
  #101  
nilsreinert123
 
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Default RE: Seidel 7-70 radial: Help me decide!

Hi

I am also thinking a lot of buying a 770 , as a replacement for my ASP 400 on my 2150mm vs fw 190. The ASP have given me too many deadsticks now ,and i cant use it.
All i have read so far regarding the 770 is positive , it runs without glow , which the ASP never did , even with glowpower it stopped in the air.
The only thing that keeps me from buying a UMS 770 is that i dont know if it will hold for years of flying? , the fact that it is made in India frightens me a little , will the metals and alloys stand the test of time and use...?
Old 08-14-2010, 10:45 AM
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Default RE: Seidel 7-70 radial: Help me decide!

We won't know till we get abu to buy one and test it for the next couple of years.
Old 08-14-2010, 11:32 AM
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Default RE: Seidel 7-70 radial: Help me decide!

Jawohl Abu...kauf doch den Motor und lass uns wissen ob der sich lohnt oder nicht....wir brauchen ein Versuchstier !!!
Old 08-14-2010, 12:22 PM
  #104  
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Default RE: Seidel 7-70 radial: Help me decide!

Oh, don't worry! Each day that passes I come up with more and more ways to rationalize the purchase. Here are a couple of today's:

1. Well, I'm not spending any money traveling back east for scale meets (e.g. Old Rhinebeck or HDP).

2. The yen is the strongest it's been in three years

No doubt there will be more!
Old 08-14-2010, 12:30 PM
  #105  
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Default RE: Seidel 7-70 radial: Help me decide!

.3 and You'll probably be the only in Japan with one in a biplane....just imagine the bragging rights !?!?
Old 08-14-2010, 12:38 PM
  #106  
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Default RE: Seidel 7-70 radial: Help me decide!

Japanese are both tech crazy and German product crazy (maybe even if it's a made-in-India German product), so I'm pretty sure there are a few others around. But I think I can safely say I'll be the only person in Shikoku with one. As for bragging rights, I'll have to learn to brag in Japanese.
Old 08-14-2010, 04:39 PM
  #107  
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Default RE: Seidel 7-70 radial: Help me decide!

Yeah , guess i`ll have to wait some years and read the reports hehe
Old 08-14-2010, 07:19 PM
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Default RE: Seidel 7-70 radial: Help me decide!

ORIGINAL: nilsreinert123
Yeah , guess i`ll have to wait some years and read the reports hehe
If you buy if for me NOW, I'll break it in for you for a few years. I'd send it to you in about ten years after I'm good and sure it works.
Old 08-15-2010, 04:54 AM
  #109  
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Default RE: Seidel 7-70 radial: Help me decide!

Hi Abufletcher!

The Fokker EIII on page one was build and flown by my Dad. He owned a Proctor Nieuport 28 as well, that was flown with the first rotary engine build by Wolfgang Seidel, the ST540, a five cylinder with 40ccm. That was enough power for that little airplane and we were not sure about the big ST770 in the Fokker. Well, it does look much better than a too small engine, especially with that "open" Fokker cowling. In the end, it proved that the ST770 was just the right fit to the airframe. Sure it is overpowered, but not much. It swings a bigger/scaler prop and having some "spare-power" on finals is sometimes the live-insurance for a WWI aircraft.

The ST770 is definitely not in the G62 range of power. With those 7 cylinders and 14 valves, there is quite some energy waisted to turn the engine.

Go buy that engine, you gonna love it. And it makes a 1:4 Pup a one-of with it's great sound.

Best regards,


David
Old 09-04-2010, 08:48 AM
  #110  
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Default RE: Seidel 7-70 radial: Help me decide!

Just wanted to stoke the fire a bit.....A friend was at a scale qualifier in Washington state. One of the participants flew a Corsair with the Seidel 770...my friend reports that the look was perfect and that it ran like a watch......
Old 09-04-2010, 12:47 PM
  #111  
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Default RE: Seidel 7-70 radial: Help me decide!

What Corsair was it? That would be helpful
Old 09-04-2010, 01:25 PM
  #112  
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Default RE: Seidel 7-70 radial: Help me decide!

I know....but I don't know...! I'll try to get more info...

Randy
Old 09-06-2010, 06:24 PM
  #113  
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Default RE: Seidel 7-70 radial: Help me decide!

Just to update that I AM still planning to buy the 770 when I get back to Japan...and the Leica IS going to sell on eBay in a couple of days.

Some things you just have to do.
Old 09-06-2010, 07:29 PM
  #114  
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Default RE: Seidel 7-70 radial: Help me decide!

You go Don
Doc
Old 09-07-2010, 04:31 PM
  #115  
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Default RE: Seidel 7-70 radial: Help me decide!

I applaud and boo you at the same time. Just dont let it sit too long.
Old 09-07-2010, 04:52 PM
  #116  
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Default RE: Seidel 7-70 radial: Help me decide!

ORIGINAL: TFF
I applaud and boo you at the same time.
I feel the same way.

Just dont let it sit too long.
Well, like everyone else, I'll no doubt be just running in on a bench for a while. At least until I can build a model for it. I still think a 1/4 scale Pup would be a good place to start. Not exciting, but a good place to start.

One thing though to remember with that big, scale prop: There's not much clearance to spare for sloppy landings!

PS. Today's dollar-to-yen exchange rate: 83 (as compared to 120 two years ago).
Old 09-07-2010, 04:58 PM
  #117  
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Default RE: Seidel 7-70 radial: Help me decide!

"Endaka" bit me in the butt from the time I went to Japan and the time I left. Glad to see it's working for you!
Old 09-07-2010, 05:03 PM
  #118  
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Default RE: Seidel 7-70 radial: Help me decide!

ORIGINAL: jtisch

''Endaka'' bit me in the butt from the time I went to Japan and the time I left. Glad to see it's working for you!
Eventually, I will get bit too. There's never any long term good for anyone from economic bad times. So everyone gets bit sooner or later. But at least for now the strong yen is making up for my wife's lost income.

That and cashing out of my Leica stuff.
Old 09-07-2010, 05:11 PM
  #119  
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Default RE: Seidel 7-70 radial: Help me decide!

But to put this sort of purchase in perspective. For anyone with any of the following, you needn't be envious:

1. Anyone with one the "standard" 3-cylinder radials from one of the "big" companies
2. Anyone with one of the multi-cylinder Laser engines
3. Anyone with a $1,000+ radio (or 2 $500 radios)
4. Anyone with a dedicated trailer for their RC models
5. Anyone with a JetSki
6. Anyone with a new car or truck
7. Anyone with a big screen TV
8. Etc.

Old 09-07-2010, 06:46 PM
  #120  
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Default RE: Seidel 7-70 radial: Help me decide!

You need to come up with number 9; I am not looking too good on your list. Getting it in a plane will help you not worry about it being in a box. A Pup is the way to go.
Old 09-07-2010, 07:32 PM
  #121  
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Default RE: Seidel 7-70 radial: Help me decide!

ORIGINAL: TFF
You need to come up with number 9; I am not looking too good on your list.
Glad to hear that! It means you're just like me! But seriously, a lot of people in the US seem to have all kinds of stuff that I've never owned. For example, how much did your box spring, mattress, and bed frame cost? In Japan, I'm sleeping on a $100 frame with a $30 "mattress" (aka "futon"). In the US we've got a bunch of hand-me-down mattresses.

You know, I really should get a Ph.D. in rationalization!

Getting it in a plane will help you not worry about it being in a box. A Pup is the way to go.
I agree. But being practical, it will probably take me a year or more to get any 1/4 model built considering I'm still working on the CI and have the DrI to finish as well...oh and then there's that 1/6 scale CD ScaleDesigns SE5a. But I can at least start working on it. The main reason to buy the engine now is that I have the money now and who knows if that will be true in the future...or even if the engine will be available in the future.
Old 09-08-2010, 09:57 AM
  #122  
Reg Hinnant
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Default RE: Seidel 7-70 radial: Help me decide!

This thread is really getting amusing.........[sm=tongue_smile.gif]
Old 09-08-2010, 07:09 PM
  #123  
abufletcher
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Default RE: Seidel 7-70 radial: Help me decide!

You think that's funny, wait until you see my Seidel on this:

http://www.amr-rc.com/index.php?path...id=6&langue=en

Old 09-08-2010, 10:55 PM
  #124  
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Default RE: Seidel 7-70 radial: Help me decide!

Yuo that would be funny!
But it would get you using it in the air quick!
Old 09-08-2010, 11:25 PM
  #125  
abufletcher
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Default RE: Seidel 7-70 radial: Help me decide!

BTW, I like the strategy used on the Proctor EIII (or at least one that I read about) where the engine is build into a removable tray along with tank and servos. The thing about an engine like the 770 is that it's not an engine you just put into one model forever.


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