BME 55 REANNOUNCED!
01-25-2006 | 11:06 PM
#51
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From: Hawthorne, CA
RE: BME 55 REANNOUNCED!
ORIGINAL: STG
Why go with a 50cc plane when for just a little bit more you can put together a 80cc plane?
Why go with a 50cc plane when for just a little bit more you can put together a 80cc plane?
01-25-2006 | 11:14 PM
#52
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From: Hawthorne, CA
RE: BME 55 REANNOUNCED!
ORIGINAL: JoeAirPort
Yes Basin Bum it means that you can now put this BME 55 on a 78 inch plane. Why not??? I saw you on that Patty thread a while back.
Yes Basin Bum it means that you can now put this BME 55 on a 78 inch plane. Why not??? I saw you on that Patty thread a while back.
To spend the money on a gasser and then stuff it on an outdated airframe when there is stuff available that won't cost significantly more is just foolhardy IMNSHO. So decide if you want to go gas or glow and then pick your airframe accordingly.
01-26-2006 | 12:45 AM
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From: Spokane, WA
RE: BME 55 REANNOUNCED!
BasinBum,
I guess if I agree with you regarding delivery of the 55 from 2 years ago it gets moderated. I am not sure what I wrote that was outside the guidlines, but thats life.
I guess if I agree with you regarding delivery of the 55 from 2 years ago it gets moderated. I am not sure what I wrote that was outside the guidlines, but thats life.
01-26-2006 | 08:51 AM
#54
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RE: BME 55 REANNOUNCED!
I have a Dave Patrick Edge 540 27% (79 inch) that I put together this time last year. I put a Moki 2.10 in it and if that BME 55 was out it would have been perfect for the plane. I could do an engine switch if the BME 55 comes out this year. Or I might just sell the DPM Edge and put the BME 55 in a 50cc airframe (Yak). As I said in an earlier post the pound less of weight will make today's 50cc gas airframes tail heavy. But it'll balance really good in the 78-80 inch planes.
01-26-2006 | 11:08 AM
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From: New Richmond,
WI
RE: BME 55 REANNOUNCED!
ORIGINAL: BasinBum
Actually there is a much bigger jump when you go to the 80cc size. Dual aileron servos with matchboxes for starters. The kits tend to cost a lot more as well. The same equipment is used on the 78" planes as the new breed of 84"+ planes and the extra cost is about $200 average. On a plane that will end up around $1500 that isn't a huge differance compared to spending $1300 for a smaller plane with heavier wing loading.
ORIGINAL: STG
Why go with a 50cc plane when for just a little bit more you can put together a 80cc plane?
Why go with a 50cc plane when for just a little bit more you can put together a 80cc plane?
-------------
Whenever something substantially lighter comes along, like the new BME 55 it opens new doors...In this case makes gas much more of a viable performance option for smaller planes and also pulls significant weight out of larger planes.
01-26-2006 | 04:17 PM
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From: New Richmond,
WI
RE: BME 55 REANNOUNCED!
ORIGINAL: Hajduk
Thanks for expanding on my overly simplified weight comparison. I am new to gas engines and often forget important things. This engine will actually be my first gas engine.
Regards,
Thanks for expanding on my overly simplified weight comparison. I am new to gas engines and often forget important things. This engine will actually be my first gas engine.
Regards,
ORIGINAL: STG
The 1.6FX is 2.7 pounds with light pitts muffler and motor mount RTF
The BME is 2.1 + 3oz ignition + 4oz pitts muffler + 3oz ignition battery + 3oz mount = 3 pounds RTF
ORIGINAL: Hajduk
Let me get this straight. This engine is only ONE ounce heavier then OS 1.60 FX? Is that possible?
Let me get this straight. This engine is only ONE ounce heavier then OS 1.60 FX? Is that possible?
The BME is 2.1 + 3oz ignition + 4oz pitts muffler + 3oz ignition battery + 3oz mount = 3 pounds RTF
2.1oz motor
ignition to 4 oz.
pitts to 6 oz.
battery to 4 oz.
switch to .6 oz.
mount to 6 oz.
---------------------------------------------------------------
So it's more like 3.5 pounds.
01-26-2006 | 05:51 PM
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From: Ashland, KY
RE: BME 55 REANNOUNCED!
A 730 mah nimh battery is a smidge over 2 oz.
As skypilot one stated, you don't need heavy 6-7 oz H9 rails... but rather at best, 3 oz standoffs.
So split the difference... 3.25 lbs.
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
Really theu are prett6y much neck and neck. Then add to that the hoop jumping a lot of guys end up going through to get a consistent 1.60... pumps, regulators, add a little weight...
Cost? In a seasons flights you'd get all your money back in fuel savings.
Lastly... see how much a used 1.60fx s worth and see what a used DA50, or BME 50, etc is worth...
Lots of benefits with gas... even if it was only not having to de-slime your plane every evening...
As skypilot one stated, you don't need heavy 6-7 oz H9 rails... but rather at best, 3 oz standoffs.
So split the difference... 3.25 lbs.
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
Really theu are prett6y much neck and neck. Then add to that the hoop jumping a lot of guys end up going through to get a consistent 1.60... pumps, regulators, add a little weight...
Cost? In a seasons flights you'd get all your money back in fuel savings.
Lastly... see how much a used 1.60fx s worth and see what a used DA50, or BME 50, etc is worth...
Lots of benefits with gas... even if it was only not having to de-slime your plane every evening...
ORIGINAL: STG
You caught that I missed the numbers also, right? Looks like we are closer to 3.5pounds RTF than 3.
2.1oz motor
ignition to 4 oz.
pitts to 6 oz.
battery to 4 oz.
switch to .6 oz.
mount to 6 oz.
---------------------------------------------------------------
So it's more like 3.5 pounds.
You caught that I missed the numbers also, right? Looks like we are closer to 3.5pounds RTF than 3.
2.1oz motor
ignition to 4 oz.
pitts to 6 oz.
battery to 4 oz.
switch to .6 oz.
mount to 6 oz.
---------------------------------------------------------------
So it's more like 3.5 pounds.
01-26-2006 | 06:16 PM
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From: New Richmond,
WI
RE: BME 55 REANNOUNCED!
ORIGINAL: Maudib
A 730 mah nimh battery is a smidge over 2 oz.
As skypilot one stated, you don't need heavy 6-7 oz H9 rails... but rather at best, 3 oz standoffs.
So split the difference... 3.25 lbs.
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
Really theu are prett6y much neck and neck. Then add to that the hoop jumping a lot of guys end up going through to get a consistent 1.60... pumps, regulators, add a little weight...
Cost? In a seasons flights you'd get all your money back in fuel savings.
Lastly... see how much a used 1.60fx s worth and see what a used DA50, or BME 50, etc is worth...
Lots of benefits with gas... even if it was only not having to de-slime your plane every evening...
A 730 mah nimh battery is a smidge over 2 oz.
As skypilot one stated, you don't need heavy 6-7 oz H9 rails... but rather at best, 3 oz standoffs.
So split the difference... 3.25 lbs.
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
Really theu are prett6y much neck and neck. Then add to that the hoop jumping a lot of guys end up going through to get a consistent 1.60... pumps, regulators, add a little weight...
Cost? In a seasons flights you'd get all your money back in fuel savings.
Lastly... see how much a used 1.60fx s worth and see what a used DA50, or BME 50, etc is worth...
Lots of benefits with gas... even if it was only not having to de-slime your plane every evening...
ORIGINAL: STG
You caught that I missed the numbers also, right? Looks like we are closer to 3.5pounds RTF than 3.
2.1oz motor
ignition to 4 oz.
pitts to 6 oz.
battery to 4 oz.
switch to .6 oz.
mount to 6 oz.
---------------------------------------------------------------
So it's more like 3.5 pounds.
You caught that I missed the numbers also, right? Looks like we are closer to 3.5pounds RTF than 3.
2.1oz motor
ignition to 4 oz.
pitts to 6 oz.
battery to 4 oz.
switch to .6 oz.
mount to 6 oz.
---------------------------------------------------------------
So it's more like 3.5 pounds.
On the 1.6FX--I have had 4 of them on 11 to 13 pound planes. With the way I fly I get better than 1oz min(mix of 3D and IMAC). 16oz tank is more than enough for me. I do set up with pump from the get go.
I like the used price of 1.6FX, especially when you can find them NIB with receipt and muffler for about $200.00-- nice.
At better than 1oz min fuel usage and $10.49 gal for 5% at my LHS, and the amount of air time I get, I don't justify the price of gas in 1 season.
Slime has never been an issue with the 1.6. I have always run pitts mufflers with extensions or now a pipe.
________________
3.25lbs sounds very good to me--along with great performance. [sm=thumbup.gif]
01-26-2006 | 06:30 PM
#60
RE: BME 55 REANNOUNCED!
strange --I ran the ST2300s and on a 20 oz tank - I used most of it for an IMACpattern - I paid 16 bucks a gallon for #2 Magnum 128 ozs /20=less than 7 flights per gallon -in actual use NEVER 10 flights in a gallon ($1.60 per flight at best)
My piped Tigres ran very hard the typical 18x8 at over 9000 on the ground.
power comes from fuel efficiently used - the engine is just a converter
so I made my choice to jump to a light weight 40 gasser and it ---works for me .
My piped Tigres ran very hard the typical 18x8 at over 9000 on the ground.
power comes from fuel efficiently used - the engine is just a converter
so I made my choice to jump to a light weight 40 gasser and it ---works for me .
01-26-2006 | 06:58 PM
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From: New Richmond,
WI
RE: BME 55 REANNOUNCED!
ORIGINAL: dick Hanson
strange --I ran the ST2300s and on a 20 oz tank - I used most of it for an IMACpattern - I paid 16 bucks a gallon for #2 Magnum 128 ozs /20=less than 7 flights per gallon -in actual use NEVER 10 flights in a gallon ($1.60 per flight at best)
My piped Tigres ran very hard the typical 18x8 at over 9000 on the ground.
power comes from fuel efficiently used - the engine is just a converter
strange --I ran the ST2300s and on a 20 oz tank - I used most of it for an IMACpattern - I paid 16 bucks a gallon for #2 Magnum 128 ozs /20=less than 7 flights per gallon -in actual use NEVER 10 flights in a gallon ($1.60 per flight at best)
My piped Tigres ran very hard the typical 18x8 at over 9000 on the ground.
power comes from fuel efficiently used - the engine is just a converter
Have you seen this? Bob Pastorello is getting .8oz min using OS 1.6FX with his pattern plane
For comparison the YS1.4 is using 2.2oz min flying the same pattern with the same plane.
http://www.rcaerobats.net/MotorCostComparison.htm
Some converters are more efficient than others
If I had to pay what you have to for fuel I would have went to gas already.
01-26-2006 | 07:04 PM
#63
RE: BME 55 REANNOUNCED!
Pattern planes just sip fuel in the typical patterns- If you keep th velocity constant --the fuel consumption is more even -and less - just like driving a car -
01-26-2006 | 07:11 PM
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From: Hawthorne, CA
RE: BME 55 REANNOUNCED!
ORIGINAL: Maudib
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
The last time I saw a cost comparison it came out that you'd need two or three seasons of average flying to even out the costs.
01-26-2006 | 07:19 PM
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From: New Richmond,
WI
RE: BME 55 REANNOUNCED!
ORIGINAL: dick Hanson
Pattern planes just sip fuel in the typical patterns- If you keep th velocity constant --the fuel consumption is more even -and less - just like driving a car -
Pattern planes just sip fuel in the typical patterns- If you keep th velocity constant --the fuel consumption is more even -and less - just like driving a car -
I just got my Giles in the air a couple days ago-- 1.6FX and pipe. This plane is only 11 pounds dry. Flew two 8 min flights (throttle over 15%) a mix of IMAC (Sportsmans sequence) and 3D (lots of hovering) KE passes, 16oz tank and on landing I had more than 1/2 tank left. No I was not at full throttle very often--only a couple of times on pull out.
Yes if I was trying to fly faster(higher throttle settings) fuel usage would go up, but I am not racing. I know fuel usage had a lot to do with flying style.
Are you saying that you were getting about the same economy with your ST2300?
01-26-2006 | 07:37 PM
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From: New Richmond,
WI
RE: BME 55 REANNOUNCED!
ORIGINAL: BasinBum
As long as we are nitpicking the ounces...the tanks are in fluid ounces which when figured with glow fuel (which is lighter than water) is less than 1/2 a pound.
The last time I saw a cost comparison it came out that you'd need two or three seasons of average flying to even out the costs.
ORIGINAL: Maudib
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
But I disagree about tank size... It hink most would put a 20 oz tank with a 1.60 and get about 12 minutes... You could put in a 12 oz tank with the BME and get more than that... so take off weight in fuel is a half lb. more in glow fuel...
The last time I saw a cost comparison it came out that you'd need two or three seasons of average flying to even out the costs.
01-26-2006 | 08:33 PM
#67
RE: BME 55 REANNOUNCED!
I weighed all the blends I used- made my supplier a bit testy---I could instantly tell what the mix was
I also thru reduction, checked the oil content
this is a quick way to fid out what the fuel REALLY is -in respect to nitro - My fuel was always closer to 8 lbs - pure nitro a gallon is over 9 lbs- and just for shucks I just weighed an almost full gallon-- 9 lbs even- I now use it to remove CA if I get it on the model.
So yes I really used the power on tap and burnt the fuel
thatis why I no longer use glo setups
my ignition 2300 on 5% nitro was terrific -I sold one to Pasterello -he did not have good experience with his --don't know why -
that fuel was 8-9 bucks a gallon as I recall-
anyways - it's all glo fuel under the bridge for me ----
I also thru reduction, checked the oil content
this is a quick way to fid out what the fuel REALLY is -in respect to nitro - My fuel was always closer to 8 lbs - pure nitro a gallon is over 9 lbs- and just for shucks I just weighed an almost full gallon-- 9 lbs even- I now use it to remove CA if I get it on the model.
So yes I really used the power on tap and burnt the fuel
thatis why I no longer use glo setups
my ignition 2300 on 5% nitro was terrific -I sold one to Pasterello -he did not have good experience with his --don't know why -
that fuel was 8-9 bucks a gallon as I recall-
anyways - it's all glo fuel under the bridge for me ----
01-26-2006 | 08:49 PM
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From: New Richmond,
WI
RE: BME 55 REANNOUNCED!
ORIGINAL: dick Hanson
anyways - it's all glo fuel under the bridge for me ----
anyways - it's all glo fuel under the bridge for me ----
Just weighed 128oz of Powermaster 30% and it came in @ 7 pounds 11oz
The 10% Cool Power is 7 pounds.
I am trusting that there is 128oz of fuel in the containers.[&:]
01-26-2006 | 09:18 PM
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From: Gales Ferry, CT
RE: BME 55 REANNOUNCED!
I fly two 1.60's and agree my planes stay clean and are fuel efficient but this BME 55 is the engine I have been waiting for. With a quiet muffler it will make gobs more power than a 160 and the flying weight will be very close. It will be the perfect engine for my Byron Pitts! I was going to try to make a curved tuned pipe for the 160 to fit in the cowl but all I'll need now is a quiet muffler for the 55. My only concern will be the increased vibration of a larger motor, the 160 is pretty dawg gone smooth.
Wow, nitro weighs that much more? I feel kinda feel like I've been getting ripped off by Byron, they measure by weight and not volume but my engines run well on it.
Wow, nitro weighs that much more? I feel kinda feel like I've been getting ripped off by Byron, they measure by weight and not volume but my engines run well on it.
02-09-2006 | 09:54 PM
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From: Longview,
TX
RE: BME 55 REANNOUNCED!
If all goes well, I will be buying this engine and GreatPlanes Yak 54. I would like to install a smoke system as well. Do I need a special mufler for smoke? What would be a the smoke pump recommended?
02-10-2006 | 11:17 AM
#71
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RE: BME 55 REANNOUNCED!
On gasoline engines you really don't need a special smoke muffler, just a pressure nipple somewhere near the exhaust inlet for the smoke oil to flow into the muffler.
I used a J&A muffler on my BME 50. The J&A comes with a pressure fitting already installed. I tried a Perry smoke pump but couldn't get it to pump enough oil so I used a vacuum activated fuel pump for an outboard engine and it pumps great.
I drilled and tapped the BME engine case for the pressure fitting to the pump and used a smoke valve from Tower Hobbies on a servo for the smoke control.
I also mixed the servo for the smoke valve to my throttle servo in the radio so at low throttle settings the smoke valve would close some so it wouldn't shoot too much oil in the exhaust system.
Works great and at a fraction of the cost of the electric and some manual smoke systems out there on the market.
I used a J&A muffler on my BME 50. The J&A comes with a pressure fitting already installed. I tried a Perry smoke pump but couldn't get it to pump enough oil so I used a vacuum activated fuel pump for an outboard engine and it pumps great.
I drilled and tapped the BME engine case for the pressure fitting to the pump and used a smoke valve from Tower Hobbies on a servo for the smoke control.
I also mixed the servo for the smoke valve to my throttle servo in the radio so at low throttle settings the smoke valve would close some so it wouldn't shoot too much oil in the exhaust system.
Works great and at a fraction of the cost of the electric and some manual smoke systems out there on the market.
05-08-2006 | 06:02 PM
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From: Longview,
TX
RE: BME 55 REANNOUNCED!
ORIGINAL: RTK
Check his web site occasionally. If it changes from April, I am sure he will post it there first.
Check his web site occasionally. If it changes from April, I am sure he will post it there first.
Anybody knows anything else?
