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DLE 35RA going to 3 blade prop

Old 03-15-2013, 01:56 PM
  #26  
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Default RE: DLE 35RA going to 3 blade prop


ORIGINAL: irocbsa

Yeah, that's the issue I suppose. The "Semi-Scale" props from Biela really load the engine down a lot compared to other brands.
is that load due to the weigh of the prop? I was told that due to their light weight you can swing larger diameter props?

Would the 16x10 3 blades be to little for the DLE 35?

Old 03-15-2013, 04:37 PM
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Default RE: DLE 35RA going to 3 blade prop

irocbsa, the RCGF prop came from BP Hobbies. It looks just like the Biela prop but is red instead of black. Cost $50 instead of $75. Also turns the same rpm. For a scale looking prop on a warbird especially with a large radial cowling the longer blades look better, I think. The Biela and RCGF props have wide blades and put a heavy load on the engine as you can see from my posted rpm numbers.
Old 03-15-2013, 05:04 PM
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Default RE: DLE 35RA going to 3 blade prop

BubbasanJohn, as stated above the wide blades put a heavy load on the engine. The Xoar props have narrower blades and the same "size" prop will turn up better rpm getting closer to the engines rated power in flight. A heavier prop might accelarate from idle to full power slightly slower but is not really an issue. Also you can get a slower smoother idle with a heavier prop.

Just to compair, I ran the RCGF 17-10 three blade on the G-38 I'm planning on putting in the ESM Hellcat. The DLE turned the prop 6,000 rpm and the G-38 6,450 rpm. I think with all these engines you need at least 6,800 to 7,200 rpm so when unloaded in high speed flight you will be getting around 7,900 to 8,300 rpm. You certainly don't want them turning over 9,000 rpm unloaded. I think that is too much. Just my opinion.

I still think the Xoar 18-8 three blade would work for you on the Hellcat and look close to scale. The 18-10 will give you more speed but I would rather have the flatter pitch for low speed thrust in an emergency.
Old 03-15-2013, 05:25 PM
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Default RE: DLE 35RA going to 3 blade prop

The beila 18x10 is a very heavy load for the DLE 30. I could only get 4,400-4,500 on it with a bowman ring.

MTK the 33 may be strong but it drag it down a bunch also. The Beila is = to a XOAR 20x10 laminated prop or so I have been told.
Old 03-15-2013, 06:05 PM
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Default RE: DLE 35RA going to 3 blade prop

Well, Rbean... I am obviously not the sharpest knife in the drawer.....


Will the 16x10 3 blades be too small for the 35cc motor in your opinion? Could it allow the motor to overspeed and ruin the crank?
Old 03-15-2013, 06:08 PM
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Default RE: DLE 35RA going to 3 blade prop


ORIGINAL: airraptor

The beila 18x10 is a very heavy load for the DLE 30. I could only get 4,400-4,500 on it with a bowman ring.

MTK the 33 may be strong but it drag it down a bunch also. The Beila is = to a XOAR 20x10 laminated prop or so I have been told.

So even though the prop is larger more blades, the much lower rpm just makes the plane unflyable. So I should not hold out hope in the 18x10 3 blade semi scale prop working on my hellcat?
Old 03-15-2013, 07:44 PM
  #32  
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Default RE: DLE 35RA going to 3 blade prop


ORIGINAL: airraptor

The beila 18x10 is a very heavy load for the DLE 30. I could only get 4,400-4,500 on it with a bowman ring.

MTK the 33 may be strong but it drag it down a bunch also. The Beila is = to a XOAR 20x10 laminated prop or so I have been told.
The few Bielas I've seen were better suited to converting power to noise. The Mezjlik 18x10 carbon 3 blader is indeedabout the equal of a 20x10 2 blader. I am now using the 20.5x10 apc 2 blader on the piped 33....7300 rpm happy happy and just a hair off the rpms of the 3 blader....AS always, YMMV
Old 03-15-2013, 07:51 PM
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Default RE: DLE 35RA going to 3 blade prop

What do you tink the effect would be for using the 16X10 3 bladers?  I fully inderstand the feelings of the biela and the other props.  Whould thee be a negative effect for going to 16 inch diameter 3 blade propeller (not a biella)?
Old 03-15-2013, 10:08 PM
  #34  
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Default RE: DLE 35RA going to 3 blade prop

If the plane is over 14 lbs I would just use a two blade prop.

MTK the Mej props are not as scale looking on the ground. in the air now ones how many blades you have.

even though my tigercat will be around 13-14 lbs per engine i would have no issues flying it on the 35 and that prop.

MTK I dont think the 33 will spin the Beila 18x10 that well. If there is one at the field this weekend i will throw it on and see what it does.

I know you have a pipe on yours but most warbrids dont have the room for a tuned pipe.


OP, there other props that are the most scale and they are the "Solo" props and are ground adjustable.

Old 03-16-2013, 11:21 AM
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Default RE: DLE 35RA going to 3 blade prop

Bubba,

One prop you might not have considered is the adjustable pitch prop marketed as "Mor-Power". TBM sells the larger 20" one, but I just saw someone selling a 16" part on the "other site". Look up a guy named "UncleGeorge". The pitch is adjustable from 8 to 12, it comes with a badass looking scale spinner for your Hellcat, and the best part is that it is less than $100 shipped.

Sent you a PM as well.
Old 03-16-2013, 05:29 PM
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Default RE: DLE 35RA going to 3 blade prop

Thanks
Old 03-16-2013, 07:05 PM
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Default RE: DLE 35RA going to 3 blade prop

I will never intentionally use a Biela of any number of blades. XOAR and Falcon are about the only woodies I'd consider. In fact the XOAR electric woodie modified as I do toturn these into wood carbon hybrids, work fairly well

OS single nut-bolt prop arrangement all but eliminates every other prop except APC. You want looks, use the scale prop. You want performance, use APC. Either way, it doesn't affect me in any way
Old 03-16-2013, 07:09 PM
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Default RE: DLE 35RA going to 3 blade prop

Ok thanks
Old 03-16-2013, 07:41 PM
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Default RE: DLE 35RA going to 3 blade prop

MTK yes I kow props work also lol. I convert my dle 30,35 and 55 to single bolt set ups.

I was just stating the the MEJ 3 blade doesnt look scale on warbirds when stopped on the ground. The Xoars work pretty darn good on my 3d planes. I have used the wood E Xoars on glow four stroke a bunch of times.
Old 03-18-2013, 11:57 AM
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Default RE: DLE 35RA going to 3 blade prop


ORIGINAL: irocbsa

Bubba,

One prop you might not have considered is the adjustable pitch prop marketed as "Mor-Power". TBM sells the larger 20" one, but I just saw someone selling a 16" part on the "other site". Look up a guy named "UncleGeorge". The pitch is adjustable from 8 to 12, it comes with a badass looking scale spinner for your Hellcat, and the best part is that it is less than $100 shipped.

Sent you a PM as well.

I use the 20in 3 blade at 10 pich on my DLE55RA in my corsair and it rocks!

This is a great prop, looks good and the hub is sexy, Im not sure how it would look with 16in blades as the hubs are the same so if you get one please post some pics.

And yes the scale 18X10 3 blade needs a 45cc size motor, I have seen it useing on a DLE55 in a TopFlite gaint P47 with good results.
Old 03-18-2013, 12:01 PM
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Default RE: DLE 35RA going to 3 blade prop


[quote]ORIGINAL: mikes68charger


ORIGINAL: irocbsa



This is a great prop, looks good and the hub is sexy, Im not sure how it would look with 16in blades as the hubs are the same so if you get one please post some pics.

And yes the scale 18X10 3 blade needs a 45cc size motor, I have seen it useing on a DLE55 in a TopFlite gaint P47 with good results.
Yes I will post pic. Sad that Troy Builts Website says that the scale prop will work with a 35cc engine. What a waste of cash.
Old 03-18-2013, 06:34 PM
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Default RE: DLE 35RA going to 3 blade prop

Yeah, sure is. If I would have missed Mike's post about the inability of the 35 to turn the 18 x 10 I would have wasted a lot of money.
Old 03-18-2013, 08:15 PM
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Default RE: DLE 35RA going to 3 blade prop

Wll I'm glad you didnt get sucked in as well.  Anyone want a heck of a deal on a 3 bladed scale style 18x10 prop from troy built?  Oh Noes!!!
Old 03-19-2013, 03:20 AM
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Default RE: DLE 35RA going to 3 blade prop

Send me a PM with what you want for it. I might have a future use for it on a project I'm starting next month.
Old 03-19-2013, 05:00 AM
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Default RE: DLE 35RA going to 3 blade prop

So someone tired the Scale 18X10 3 blade belia prop on the DLE35?

I tried and dle30 could not do it, it was low in the 4k range if mem is correct.

I tried it on the PTE36R at it was in the low 5k Range but the motor was not happy.

I put it on a BME 50 and got great power out of it, 7.5k range if I rember, I know I put it on my DLE55 also and it was in the 8k range.

But it takes power to move these scale props

Even the sweet 20X10 mopower, Im getting around 7300rpms at 10pic wich is great, just a little prop rip sound at wot.

I put this prop on my ZDZ80 Super J and got 5600 rpms at 14pich, and 7600 rpms at 12pich!

So when you see you have to jump up from a 55cc to an good 80cc to to keep almost the same rpms with just 2 more pich, its crazy.

But that 16in adjustable, it is really adjustable to anything you want, as you can put it at 9 pich or 11 pich etc, there are no hard teeth that make you have it exsactly one pich like Solo props

Old 03-20-2013, 07:14 PM
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Default RE: DLE 35RA going to 3 blade prop

BubbasanJohn, Sorry about the delay getting back to you. If you have the Biela 16-10 3 blade it will probably work ok on the 35. I think the Master Airscrew 16-10 might be ok. If you have one mount it and see. If it turns over 8,500 rpm static, it is too small. While I had the G 38 on the engine stand (I think it is close to the power of the DLE 35) I mounted a Master Airscrew 3 blade 16-8. It turned 8,900 rpm. Too small, but the 16-10 MA might work,
Old 03-20-2013, 07:30 PM
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Default RE: DLE 35RA going to 3 blade prop


thanks Bean.
Old 03-31-2014, 12:17 AM
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Default

and?
anyone tried a 3 blader on a dle35ra?
i have a esm f8f, now turing a 2 blade 19x8, I do not have enough ground clearance, with the result that my plane always rolover when i try to land it…..re****s: prop broken an damage to the wing….

so i need a smaller prop BUT i also need the torck of my 2blade (because our landing field is very short!)
i'm thinking off a 18x10 3 blade…..
i don't know if a 17 ich is still ok. because a bearcat has a big nose, so i'm thinking that it has to be a least a 18"x? …...
Old 03-31-2014, 03:35 PM
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juweeltje, I've been running a three blade Xoar 18-8 on a G-38 in a ESM Hellcat with good results. Turning about 7,000 rpm and very little difference in power (as in flight performance) that a two blade 18-10. I think the DLE 35ra has more power than the G-38. I think the Biela 18-10 would be too much prop
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Old 03-31-2014, 11:41 PM
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Default

Hi RBean,
thanks for your input.
i just have purchased a menz 17/10 3 blade.....
I do hope that i don't lose mutch torck,because i haven't got a lot of landingstrip to takeoff....
i needed more grondclearance because with a 19" it's way to risky, so a 18" would'nt make that mutch difirance....
how's your hellcat by the way? does is need also big weight to be added in the nose like my bearcat?

i find that the esm bearcat, needs a lot (650grams) of extra nose weight, so it easely flips over when i try to land it.....grrrrrrr

i will try out the 17x10 3blade and lett you know if this would be the right match.....

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