Prop & Spinner Questions
#1
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From: Tracy,
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First question does anyone know of anybody selling anodized spinners? If so would you please give me a link to their site. Thanks in advance.
Question number two is about which prop to use. I have a MDS .78 Pro engine that I will be using on my P-51D. The suggested 2 blade prop range is
12 x 8 to 13 x 8. Would you just go ahead & use a 2 blade or go for the more scale look & use a 3 blade? If so what size 3 blade would I use for this engine, & would I loose performance by doing so? Again thanks in advance.
P.S. I'm not using the MDS because it is the engine that I want to put in this bird. I am using it because I don't have the money for the 4-stroke that I would like to put in it right now & I got this engine for an extremely good price. It is just like new, being used not much more than enough to get it broken in. It runs very well & idles great with gobs of power so I went ahead & got it for now.
Question number two is about which prop to use. I have a MDS .78 Pro engine that I will be using on my P-51D. The suggested 2 blade prop range is
12 x 8 to 13 x 8. Would you just go ahead & use a 2 blade or go for the more scale look & use a 3 blade? If so what size 3 blade would I use for this engine, & would I loose performance by doing so? Again thanks in advance.
P.S. I'm not using the MDS because it is the engine that I want to put in this bird. I am using it because I don't have the money for the 4-stroke that I would like to put in it right now & I got this engine for an extremely good price. It is just like new, being used not much more than enough to get it broken in. It runs very well & idles great with gobs of power so I went ahead & got it for now.
#3
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From: Tracy,
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Thanks Ken. I was kind of looking for someone different though. I know about Tru-turn. I'm really hoping to find a blue anodized one if it wasn't too expensive. So much for the scale look huh? lol
#4

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There are lots of people around who anodize, I even know of one here on RCU who does it. You could probably use a standard spinner and then have someone anodize it the color you want.
As for the prop, 3 blade can work fine. The typical starting point is to drop an inch from the 2 blade recommendation. I actually looked into running a 3 blade on my WM P-51. I decided against it for several reasons. First was a limited selection of 3 blade props. Second, and more important, was a lack of 3 blade spinners. And finally, it's fairly well accepted that 2 blade props are more efficient. If you're going to cut your own slots, spinner availability doesn't matter, but for this plane I didn't feel like doing this. On a limited budget I'd tend to stick with the known quantity and go with a two blade.
As for the prop, 3 blade can work fine. The typical starting point is to drop an inch from the 2 blade recommendation. I actually looked into running a 3 blade on my WM P-51. I decided against it for several reasons. First was a limited selection of 3 blade props. Second, and more important, was a lack of 3 blade spinners. And finally, it's fairly well accepted that 2 blade props are more efficient. If you're going to cut your own slots, spinner availability doesn't matter, but for this plane I didn't feel like doing this. On a limited budget I'd tend to stick with the known quantity and go with a two blade.
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Elenasgrumpy,
Did you look at Tru-Turn's website?? They make anodized spinners too. I got a red anodized spinner from them for my Hanger 9 P-40 and it's a very high quality spinner. very nice
[link]http://www.truturn.com/anodized_spinners.htm[/link]
Ken
Did you look at Tru-Turn's website?? They make anodized spinners too. I got a red anodized spinner from them for my Hanger 9 P-40 and it's a very high quality spinner. very nice
[link]http://www.truturn.com/anodized_spinners.htm[/link]
Ken
#6
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Tru-Turn's are pretty expensive AND THEN add about $16 for the anodizing........ whew
The 2 3/4" for my 46size P40 would be around $50 !!!!!! Guess the $5.00 Sig one (that's the right shape for a P40) is gonna stay.
The 2 3/4" for my 46size P40 would be around $50 !!!!!! Guess the $5.00 Sig one (that's the right shape for a P40) is gonna stay.
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From: Tracy,
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Ken . I missed that part of their site. That's exactly what I wanted but wow! Darock is right, they are proud of those spinners aren't they? It sure looks nice, but with shipping & anodizing I'm going to be up close to $100 for a spinner! That's more than I payed for the engine, a lot more. LOL Guess I'll have to settle for regular aluminum.
Chuck, Thanks for the info on the props. That's pretty much what I was afraid of too with a 3 blade. I'll just stick with the readily available 2 blade as well.
Chuck, Thanks for the info on the props. That's pretty much what I was afraid of too with a 3 blade. I'll just stick with the readily available 2 blade as well.
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From: Tracy,
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Well, If I was able to do the anodized thing it would have to be blue. I'll probably have to just get the least expensive regular aluminum one that I can find. I saw a few on ebay around $35. As for size, I measured the circle at the front of the cowl. It is right at 3 1/2 inches. So a 3 1/2" spinner would match that part of the cowl perfectly. I could get away with 3" or 3 1/4" as well. A 3" would only leave 1/4" of the cowl circle exposed on each side & would still look good. A 3 1/4" would only leave an 1/8" showing on each side. So what do you think, what size would you go with??
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Elenasgrumpy,
I have the 3-1/2" spinner I had on the P-40. It's red. If you want it I'll send it to you. Heck, I still owe ya for the servos and receiver you sent me. So if you can live with a red one let me know. You'll still have to get the adapter for it that matches your engine, but at least you won't have to spend on the spinner.
Ken
I have the 3-1/2" spinner I had on the P-40. It's red. If you want it I'll send it to you. Heck, I still owe ya for the servos and receiver you sent me. So if you can live with a red one let me know. You'll still have to get the adapter for it that matches your engine, but at least you won't have to spend on the spinner.
Ken
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From: Tracy,
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Ken, First off I don't feel that you owe me anything!! That is a very generous offer though & if you don't want or need it, I would be glad to take it off your hands.
Thank you so much. I may have some more Airtronics stuff for you too.
A reciever, & a few servos. I'll pm you about it. Let me know if you need the mailing address again. Thanks again Ken, that's great!!
Thank you so much. I may have some more Airtronics stuff for you too.
A reciever, & a few servos. I'll pm you about it. Let me know if you need the mailing address again. Thanks again Ken, that's great!!
#12

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tru turn has come up on this thread allot but Dave brown spinners are a great product I own both. the TTurn was twice the price about 80$ for a 3 blade custom the DBrown was 40$ for a custom 2 blade the quality is the same as far as I could tell guess who's getting my $ next time.
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From: Tracy,
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Point well taken Tim. I also completely forgot about Airborne Models. I don't know what brand of spinner it is that they have. They do have some nice looking aluminum spinners in the size range I need for around $30 to $35. That is pretty reasonable I think.
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From: Hope Mills NC
I've been looking for someone to anodize some heads for me, but haven't found anyone yet. You indicated that you knew of some people in the business. I would appreciate it if you would share some names with a fellow tarheel.
Thanks,
Richard
Thanks,
Richard



