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Can these be used for glow power?
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Page 2 of 2 • 1, 2
Re: Can these be used for glow power?
So, as I have never compared the props like this before, I do see some differences. What I do notice is that the DAL prop and the Cox prop appear to be equal at the hub, while the Master Airscrew has a little more 'meat'. Also, the Cox propeller has very pronounced molding cuts on the hub, not as clean cut as the others where taken from the molds.
NEW222- Top Poster
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Surfer_kris- Diamond Member
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Re: Can these be used for glow power?
Well Nuts been running them without a problem !?!? and if you read the product details on the DAL 's it says that there better props than the Gemfan and others .. https://www.dalprops.com/products/5045?variant=15038875523 They also mention tough enough to take crashes and tree limb clipping ?
But it doesn't say good for IC engines?? while the Gem says that it is Soooo go figure >> I dont care for the Glass filled as i hear there easy breaks , witch tell me too if you get a crack and dont see it after a bad landing then you may bee in for a BAD surprize !! I have had props breck in my hand just trying to start with a S-spring
![Rudolph](/users/3015/29/34/60/smiles/3407708837.gif)
![Babe Bee .049](/users/3015/29/34/60/smiles/976416.png)
getback- Top Poster
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Re: Can these be used for glow power?
I use the HQ carbon/nylon blended speed props 4x4.5 and 5x4.5 able to handle 37k thus far from
all my flying with them no issues.
With the DAL props I think it's all about the new plastic tech, they are using some tough nylon.
I have not used them as of yet. For .049 use you will be just fine as I have used all nylon HQ 4x4.5
with no issues same sort of plastic tech. Went with the carbon blend in the end because I wanted
a stiffer blade for top end speeds thus far 148 mph with no issues.
I have never broke a prop using a spring starter Eric, what brand prop did you use that broke?
![Christmas Tree](/users/3015/29/34/60/smiles/373681154.gif)
all my flying with them no issues.
With the DAL props I think it's all about the new plastic tech, they are using some tough nylon.
I have not used them as of yet. For .049 use you will be just fine as I have used all nylon HQ 4x4.5
with no issues same sort of plastic tech. Went with the carbon blend in the end because I wanted
a stiffer blade for top end speeds thus far 148 mph with no issues.
![Rudolph](/users/3015/29/34/60/smiles/3407708837.gif)
I have never broke a prop using a spring starter Eric, what brand prop did you use that broke?
![Christmas Tree](/users/3015/29/34/60/smiles/373681154.gif)
![Lighting The Tree](/users/3015/29/34/60/smiles/3576973867.gif)
![Christmas Tree](/users/3015/29/34/60/smiles/373681154.gif)
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Re: Can these be used for glow power?
getback wrote:Well Nuts been running them without a problem !?!? and if you read the product details on the DAL 's it says that there better props than the Gemfan and others ..
https://www.dalprops.com/products/5045?variant=15038875523
They also mention tough enough to take crashes and tree limb clipping ?But it doesn't say good for IC engines?? while the Gem says that it is Soooo go figure >> I dont care for the Glass filled as i hear there easy breaks , witch tell me too if you get a crack and dont see it after a bad landing then you may bee in for a BAD surprize !! I have had props breck in my hand just trying to start with a S-spring
![]()
Which type/# DAL prop(s) are you running Eric? My DAL 5040's weigh barely 2gr./ea. I just checked the balance on one.. and it's damned near perfect. Much more in-balance than any of my other-brand propellers.
It will be interesting to see how these 5040's run. As I mentioned; my intentions for these props were initially for use on .049 sport engines that weren't expected to exceed 13-14K rpm's... like a stock Cox Babe Bee or Golden Bee. Actually.. what I had in mind where Cox .049 product-engine configurations for small 18-22" span C/L models. Airplanes to be flown on sub-35' lines.
I used 3/16" OD x 3/32" ID silicone fuel line to bush the DAL prop's 5mm hub-hole. This seems like the ideal size. It's a simple matter to thread a 5-40 (Cox .049 size) prop-screw into 3/32" tubing.. and the expansion which takes place yields a nice snug fit inside the prop-hub for perfect centering.
![Can these be used for glow power? - Page 2 Bushin10](https://i.servimg.com/u/f62/18/50/45/90/bushin10.jpg)
![Can these be used for glow power? - Page 2 Bushin11](https://i.servimg.com/u/f62/18/50/45/90/bushin11.jpg)
![Can these be used for glow power? - Page 2 Bushin12](https://i.servimg.com/u/f62/18/50/45/90/bushin12.jpg)
A Tee Dee .049 style aluminum spinner fits against the DAL prop-hub beautifully... and provides for maximum streamlining.
![Can these be used for glow power? - Page 2 Bushin13](https://i.servimg.com/u/f62/18/50/45/90/bushin13.jpg)
I did try a "cam-style" starter-spring with one of these props.. but it was the Cox "old-style" for the round drive-plate. Winding back the spring/prop a sensible amount didn't seem to cause any trouble with the prop. These type of springs are "draggy" though.. and I don't really like using them. As I mentioned; the "zero-drag" springs that hook-around the prop.. I wouldn't use on these.
I'll probably use the TD style spinners and my small electric starter to start engines equipped with these props.
Re: Can these be used for glow power?
I don't have any of the props just making a comparison That 1/2A Nut had been running them . They do look good on that TD spinner !!Which type/# DAL prop(s) are you running Eric? wrote:
![Small Cox Logo](/users/3015/29/34/60/smiles/7356.png)
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Re: Can these be used for glow power?
getback wrote: They do look good on that TD spinner !!![]()
Yea.. I liked that too! The way I see it; if the pitch flattens-out on these DAL 5040 (5d x 4p) props during operation, I wouldn't think that it would drop below 3" of pitch. A 5 x 3 is actually what I prefer to run on a mild/stock-configured reed-valve .049 engine.
The EMAX 2300/2600KV brushless motors that these DAL FPV props are designed for, see shaft-speeds well in excess of 20K rpms depending on the current/amps that the motor is receiving.
![Can these be used for glow power? - Page 2 Emax_m10](https://i.servimg.com/u/f62/18/50/45/90/emax_m10.jpg)
Re: Can these be used for glow power?
I have the DAL 5045BN BullNose propellers myself. I chose those as I thought of them more like the Cox safety tipped propellers by the tips of the blades being blunt and not so rounded.
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![-](https://2img.net/i/empty.gif)
» very far from cox but still glow power
» Micro 12VDC Generator with a Cox .049 Sure Start Diesel Engine
» 010's more run time and POWER I MUST HAVE MORE POWER WMAHHAHA
» "Mining Precious Metals"...Well, Actually, Sorting Glow Plugs/Glow Heads
» cox glow heads losing their glow after some runs
» Micro 12VDC Generator with a Cox .049 Sure Start Diesel Engine
» 010's more run time and POWER I MUST HAVE MORE POWER WMAHHAHA
» "Mining Precious Metals"...Well, Actually, Sorting Glow Plugs/Glow Heads
» cox glow heads losing their glow after some runs
Page 2 of 2
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