New .90 gas engine (15cc)
10-28-2010, 10:00 AM
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RE: New .90 gas engine (15cc)
Yes you people need to get talking again...I'm stuck in Afghanistan with nothing to read...no women....no booze...and no airplanes...until the 17th of December [sm=biggrin.gif]
10-28-2010, 05:20 PM
#377
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RE: New .90 gas engine (15cc)
I have the jba 15 on the ucando 46 and love it so far. I was thinking of getting the aw 60-90 profile and another jba 15 for it.. WOuld that work out OK or does it really need the dle 20? Would the DLE 20 run it better or about the same? I was thinking the 15 would make it easier to make the plane tail heavy and should still vertical out of a hover, but I am new to gas and still semi new to planes. What do you guys think. Ireally want a replacement for a twist 150 I lost, but I am not sure the jba 15 would balance well on a twist 60. What so you guys think on that? Thanks!!
10-28-2010, 06:16 PM
#378
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RE: New .90 gas engine (15cc)
I'm flying the AW PROX260 .90 size W/DLE20cc and it's a great combo!
This smaller JBA 15cc would also fly it, but be a little lacking in pulling out of hovers.
For basic flying though, it'd be adequete.
Still, I'd not put this smaller .15cc on that profile. Go with the DLE20cc!
Fwiw; both the .46 size & the .90 size AW PROX260 are tail heavy fronm the get go.
NO need to make that worse!
This smaller JBA 15cc would also fly it, but be a little lacking in pulling out of hovers.
For basic flying though, it'd be adequete.
Still, I'd not put this smaller .15cc on that profile. Go with the DLE20cc!
Fwiw; both the .46 size & the .90 size AW PROX260 are tail heavy fronm the get go.
NO need to make that worse!
10-29-2010, 02:35 AM
#382
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RE: New .90 gas engine (15cc)
ORIGINAL: a1pcfixer
I'm flying the AW PROX260 .90 size W/DLE20cc and it's a great combo!
This smaller JBA 15cc would also fly it, but be a little lacking in pulling out of hovers.
For basic flying though, it'd be adequete.
Still, I'd not put this smaller .15cc on that profile. Go with the DLE20cc!
Fwiw; both the .46 size & the .90 size AW PROX260 are tail heavy fronm the get go.
NO need to make that worse!
I'm flying the AW PROX260 .90 size W/DLE20cc and it's a great combo!
This smaller JBA 15cc would also fly it, but be a little lacking in pulling out of hovers.
For basic flying though, it'd be adequete.
Still, I'd not put this smaller .15cc on that profile. Go with the DLE20cc!
Fwiw; both the .46 size & the .90 size AW PROX260 are tail heavy fronm the get go.
NO need to make that worse!
10-29-2010, 03:24 AM
#383
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RE: New .90 gas engine (15cc)
ORIGINAL: MrBill-TX
What are you mixing the oil at for the DLE 20?
Did you have to add much weight on this set up?
What are you mixing the oil at for the DLE 20?
Did you have to add much weight on this set up?
Only add a spinner weighing round abouts 3 oz, as both
the .46 & the .90 versions of AW PROX260 are tail heavy
from the get go.
Also; very critical that the ailerons on them are properly centered.
See this thread for more info....
[link=http://www.rcuniverse.com/forum/fb.asp?m=10036704]AW PROX260 w/DLE20cc.....[/link]
10-29-2010, 08:39 AM
#384
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RE: New .90 gas engine (15cc)
ORIGINAL: airborne2.4
I've had 2 dead sticks recently so I'll be putting the 15cc on a test bench until its tuned just right.
I've had 2 dead sticks recently so I'll be putting the 15cc on a test bench until its tuned just right.
10-29-2010, 10:11 AM
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RE: New .90 gas engine (15cc)
Some food for thought, regarding fuel tanks, clunk line, and clunks.
With the increased usage of these smaller gassers, we come to a couple issues
regarding the fuel system. Small gassers only need small fuels tanks, say 8-10 oz sizes.
Standard Tygon fuel line (1/8" I.D.x 1/4" O.D.) works fine in larger fuel tanks as they're
longer and a chunk of long std Tygon bends fine in such bigger tanks. Not so good in
smaller/shorter tanks.
Well, I found some that'll be great in 8-10 oz fuel tanks. It's called Oregon, and just
like Tygon, they're both made of vinyl tubing designed for gas or oil usage.
In the photo showing all 3;
A=Oregon [part #07-257] 1/8" I.D. x 3/16" O.D. [wall thickness=.035"]
B=Oregon [part #07-266] .094" I.D. x .203" O.D. [wall thickness=.050"]
C=std Tygon 1/8" I.D. x 1/4" O.D. [wall thickness=.060]
Fuel line A you probably should NOT try, as I feel it's wall thickness makes it far too flimsy
for our use. It's only shown for comparison. It's primary uses are in chainsaws, weedeaters,
hedge trimmers, etc.
Fuel line C [std 1/8" Tygon] is fine outside the fuel tank.
Fuel line B Oregon part #07-266 is what we need inside the fuel tank, connected to the clunk.
This one is far more flexable than std Tygon, and combined with the heavier clunk in the second photo,
will do a superb job!
The second photo is of a Poulan clunk/filter part # 530095646. It's heavier than most
clunks used for glow engines.
More flexable fuel line inside the fuel tank, plus a heavier clunk!
Both parts are available at many small engine repair shops, or online as well.
Just remember to change the clunk line portion at the start of each flying season!
With the increased usage of these smaller gassers, we come to a couple issues
regarding the fuel system. Small gassers only need small fuels tanks, say 8-10 oz sizes.
Standard Tygon fuel line (1/8" I.D.x 1/4" O.D.) works fine in larger fuel tanks as they're
longer and a chunk of long std Tygon bends fine in such bigger tanks. Not so good in
smaller/shorter tanks.
Well, I found some that'll be great in 8-10 oz fuel tanks. It's called Oregon, and just
like Tygon, they're both made of vinyl tubing designed for gas or oil usage.
In the photo showing all 3;
A=Oregon [part #07-257] 1/8" I.D. x 3/16" O.D. [wall thickness=.035"]
B=Oregon [part #07-266] .094" I.D. x .203" O.D. [wall thickness=.050"]
C=std Tygon 1/8" I.D. x 1/4" O.D. [wall thickness=.060]
Fuel line A you probably should NOT try, as I feel it's wall thickness makes it far too flimsy
for our use. It's only shown for comparison. It's primary uses are in chainsaws, weedeaters,
hedge trimmers, etc.
Fuel line C [std 1/8" Tygon] is fine outside the fuel tank.
Fuel line B Oregon part #07-266 is what we need inside the fuel tank, connected to the clunk.
This one is far more flexable than std Tygon, and combined with the heavier clunk in the second photo,
will do a superb job!
The second photo is of a Poulan clunk/filter part # 530095646. It's heavier than most
clunks used for glow engines.
More flexable fuel line inside the fuel tank, plus a heavier clunk!
Both parts are available at many small engine repair shops, or online as well.
Just remember to change the clunk line portion at the start of each flying season!
10-29-2010, 02:53 PM
#386
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RE: New .90 gas engine (15cc)
Hi, Was wondering if anyone had used the K&S Sta-Flex tubing. Compatible with nitro, gas or oil, is said to be very flexible & offered in 1/8 & 1/4 od sizes from T.H. Was going to order some, but thought I'd check here first for any comments. Many Thanx
T-man49
T-man49
10-29-2010, 05:27 PM
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RE: New .90 gas engine (15cc)
W8, I use this tubing. It works very well in the small tanks. It is extremely flexible. Here is the link from Tower. After some bad experiences, I change the tank's tubing once a year.
http://www3.towerhobbies.com/cgi-bin...?&I=LXXWD2&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXXWD2&P=7
10-29-2010, 08:49 PM
#389
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RE: New .90 gas engine (15cc)
Good 3-blade to try? http://masterairscrew.com/14x73-blad...propeller.aspx
10-29-2010, 09:42 PM
#390
RE: New .90 gas engine (15cc)
ORIGINAL: Bpar4
W8, I use this tubing. It works very well in the small tanks. It is extremely flexible. Here is the link from Tower. After some bad experiences, I change the tank's tubing once a year.
http://www3.towerhobbies.com/cgi-bin...?&I=LXXWD2&P=7
W8, I use this tubing. It works very well in the small tanks. It is extremely flexible. Here is the link from Tower. After some bad experiences, I change the tank's tubing once a year.
http://www3.towerhobbies.com/cgi-bin...?&I=LXXWD2&P=7
10-30-2010, 09:41 AM
#391
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RE: New .90 gas engine (15cc)
ORIGINAL: erieqc
Your just getting a good start on it you will need to run about a gallon to a gallon and a half threw it and then it will start to settle down. The black residue coming out the exhaust will start to lesson as time goes. I had a problem with going from idle to full throttle it would die about 7000 or so rpm so I would run it up to where it would just about die and would start adjusting my low needle till it worked all the way threw to the top end. As I stated before if you don't have patience with this little engine then don't buy it!! This is not a reed, side or rear carb engine. I tought the same thing but all of a sudden it tamed down and started running better once the ring seem to wear in. Time, fuel, small adjustments and patience is all it takes.
Your just getting a good start on it you will need to run about a gallon to a gallon and a half threw it and then it will start to settle down. The black residue coming out the exhaust will start to lesson as time goes. I had a problem with going from idle to full throttle it would die about 7000 or so rpm so I would run it up to where it would just about die and would start adjusting my low needle till it worked all the way threw to the top end. As I stated before if you don't have patience with this little engine then don't buy it!! This is not a reed, side or rear carb engine. I tought the same thing but all of a sudden it tamed down and started running better once the ring seem to wear in. Time, fuel, small adjustments and patience is all it takes.
10-30-2010, 10:36 AM
#395
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RE: New .90 gas engine (15cc)
For someone who lives in the BAHAMAS, and has 81 degree temps, you must be very lonely not to be out flying!!![sm=72_72.gif]
I still think you should send me your 15cc......I'll up my offer to oh, say $3.00?
I still think you should send me your 15cc......I'll up my offer to oh, say $3.00?
10-30-2010, 11:44 AM
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RE: New .90 gas engine (15cc)
LOL, 81 degrees, winds are NE @ 15mph, its a perfect day for flying
. I'm sitting in my studio/office, working on a painting and periodically checking the thread..... Tomorrow is also a great day with winds ENE @ 5-10 mph I'll be taking the AW 90-1.20 Yak 54 w/MLD 28....
. I'm sitting in my studio/office, working on a painting and periodically checking the thread..... Tomorrow is also a great day with winds ENE @ 5-10 mph I'll be taking the AW 90-1.20 Yak 54 w/MLD 28....
11-03-2010, 03:09 AM
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RE: New .90 gas engine (15cc)
Well, did ya finally get your .15cc engine tuned and running good yet?
If not, I'll up my offer to $21.59.<vbg>
I bet your wife would sell it to me.
Been a couple fair days for flying here lately.
I flew my DLE20cc Sun & Mon.
If not, I'll up my offer to $21.59.<vbg>
I bet your wife would sell it to me.
Been a couple fair days for flying here lately.
I flew my DLE20cc Sun & Mon.
11-03-2010, 05:25 AM
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RE: New .90 gas engine (15cc)
LOL offer $21.59.
Haven't had a chance to crank it over yet, I've been very busy with the final preparations for my art exhibition which will be held 11-19-2010 in Nassau, Bahamas and I'm still working on a painting. The Grand Bahama Artist Association is also hosting a show here in Freeport 11-04-2010. Probably won't get around to flying until the end of the month.
Glad to know you're flying the wings off of that profile
Haven't had a chance to crank it over yet, I've been very busy with the final preparations for my art exhibition which will be held 11-19-2010 in Nassau, Bahamas and I'm still working on a painting
. The Grand Bahama Artist Association is also hosting a show here in Freeport 11-04-2010. Probably won't get around to flying until the end of the month.Glad to know you're flying the wings off of that profile
11-03-2010, 09:50 AM
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RE: New .90 gas engine (15cc)
Has anyone, anywhere gotten one of these engines to run yet without the HORRIBLE mid range BURBLE???? And do you have a video of it??
I have a plane I want to put one of these on. It is a QB aero works .46 .60 size and I am Hoping to put one of the JBA 15cc gassers on it.
I have a plane I want to put one of these on. It is a QB aero works .46 .60 size and I am Hoping to put one of the JBA 15cc gassers on it.
11-03-2010, 08:26 PM
#400
RE: New .90 gas engine (15cc)
http://www.oshkosh365.org/ok365_Disc...0&topicid=5584
Has anyone, anywhere gotten one of these engines to run yet without the HORRIBLE mid range BURBLE???? And do you have a video of it??
<hr />No and they probably won,t ....untill you try a smaller carb....which may work fine for your kind of mid range flying. To me thats the fun range. Oh That thing way up above....its a old time movie....kinda neat....kinda placed there by mistake! Capt,n
Has anyone, anywhere gotten one of these engines to run yet without the HORRIBLE mid range BURBLE???? And do you have a video of it??
<hr />No and they probably won,t ....untill you try a smaller carb....which may work fine for your kind of mid range flying. To me thats the fun range. Oh That thing way up above....its a old time movie....kinda neat....kinda placed there by mistake! Capt,n