Extreme Flight 87" Yak 54 - Build & Fly
#3826
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Ok well i'll richen it up at the bottom end and see how we get on, i can probably go about a quarter turn without too much trouble.
#3827
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RE: Extreme Flight 87" Yak 54 - Build & Fly
ORIGINAL: turbo4
Those BME wheels avail. yet?
ORIGINAL: bodyworks
Those are the two reasons I chose the Chip hyde muffler over stock. The only reason I considered the stock one was weight and cost...it weighs 5.5 ounces and the chip Hyde weighs over 13. However, I am semi-pleased with my finished weight...15 lbs, 8oz. that is still the low end of the weight spectrum!!! However, I do anticipate sacrificing 2-3 ounces by switching back to dubro wheels, as the Dave Browns look like they will roll right off the rim, and I still have to add my sweet graphics...
Those are the two reasons I chose the Chip hyde muffler over stock. The only reason I considered the stock one was weight and cost...it weighs 5.5 ounces and the chip Hyde weighs over 13. However, I am semi-pleased with my finished weight...15 lbs, 8oz. that is still the low end of the weight spectrum!!! However, I do anticipate sacrificing 2-3 ounces by switching back to dubro wheels, as the Dave Browns look like they will roll right off the rim, and I still have to add my sweet graphics...
#3828
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RE: Extreme Flight 87" Yak 54 - Build & Fly
ORIGINAL: flat spin
I don't know none of you are considering the Krumscheid canister. It only weighs 250g is very quiet and has a great throaty noise to it. I am turning a Mejzlik 23X8 at 6600, that's after a flight. Also they have put together a specific steel manifold for this plane and pipe combination ehat more could you ask for. I don't know if i'll get any more top end RPM as the engine runs in but 6600 with only a gallon and a bit through it ain't bad.
Someone mentioned wheels earlier. My spats have been completely destroyed, more through moveing the plane about than actual take off and landings, but anyway i ripped them off before they caused a problem. Anyway I looked at the lovely alloys which Robart are doing and thought they would like pretty good without spats, problem is they start at 4", does anyone know where i can get some similiar ones at 3.5" or do you reckon 4 would be too big, I don't want to look like i am flying a blinged up cub.
I don't know none of you are considering the Krumscheid canister. It only weighs 250g is very quiet and has a great throaty noise to it. I am turning a Mejzlik 23X8 at 6600, that's after a flight. Also they have put together a specific steel manifold for this plane and pipe combination ehat more could you ask for. I don't know if i'll get any more top end RPM as the engine runs in but 6600 with only a gallon and a bit through it ain't bad.
Someone mentioned wheels earlier. My spats have been completely destroyed, more through moveing the plane about than actual take off and landings, but anyway i ripped them off before they caused a problem. Anyway I looked at the lovely alloys which Robart are doing and thought they would like pretty good without spats, problem is they start at 4", does anyone know where i can get some similiar ones at 3.5" or do you reckon 4 would be too big, I don't want to look like i am flying a blinged up cub.
#3829
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RE: Extreme Flight 87" Yak 54 - Build & Fly
ORIGINAL: Kregg
Use Kavan wheels. These are the lightest option out there and they are very nice quality. You can get them from Trybuiltmodels.com. The plastic hub wheels come in 3.5 and 4 inch and are only $10.95. The ones with the crome hubs are even better with inflatable tires, but these are more expensive and the smallest size is 4 inch. I own and use a set of both wheel types. The 3.5 inch plastic ones have a firm plastic tire and only weight 3oz for the pair! I wish you could get the chrome hub version in the smaller 3.5 size. Tires that you can adjust the pressure in are very nice. My 2.6 Extra has those.
Use Kavan wheels. These are the lightest option out there and they are very nice quality. You can get them from Trybuiltmodels.com. The plastic hub wheels come in 3.5 and 4 inch and are only $10.95. The ones with the crome hubs are even better with inflatable tires, but these are more expensive and the smallest size is 4 inch. I own and use a set of both wheel types. The 3.5 inch plastic ones have a firm plastic tire and only weight 3oz for the pair! I wish you could get the chrome hub version in the smaller 3.5 size. Tires that you can adjust the pressure in are very nice. My 2.6 Extra has those.
BTW, I do not recommend those flashy Robarts at all, they are all bling-bling and all weight, stick with the stock Dubros if anything.
#3830
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RE: Extreme Flight 87" Yak 54 - Build & Fly
I too got away from Kavans: got a flat after 7 flights on my 42% Extra 260. I have gone to H9 Pro-lites. They are quite a bit lighter than Dubros, but I don't have measurements (I just compared them in my hand).
http://www.horizonhobby.com/Shop/ByC...?ProdID=HAN306
http://www.horizonhobby.com/Shop/ByC...?ProdID=HAN306
#3831
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RE: Extreme Flight 87" Yak 54 - Build & Fly
First flight today! Everything went well, this thing just floats.... It seemed like I had it at idle the whole time, didn't need much throttle at all. I need to do a few tweaks, more expo in 3D mode, can't wait to put that canopy latch on, one of the four bolts doesn't want to come all the way out and I have to wrestle the canopy off..hehe Can't wait to get out and burn some more gas Still don't have smoke pump yet, will find one at toledo...
Final build pics:
I like the red tips, reminds me to respect that big daddy prop.....
Mike
Final build pics:
I like the red tips, reminds me to respect that big daddy prop.....
Mike
#3832
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Is that a Bolly 23-8? Also. Is anyone using the stock muffler opening up the channel in the firewall and aftt like the tuned pipe setup for extra cooling exit? Seems like one little hole in the cowl doesn't give enough exit area. Any thoughts?
Thanks,
Craig
Thanks,
Craig
#3833
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RE: Extreme Flight 87" Yak 54 - Build & Fly
I buy from Fromeco b/ customer service is a+ and Kurt is always willing to help. Plus his stuff has a proven track record. I have 10 batteries and 10 regs from fromeco and everything still runs great!
Kurt hand assembles his own batteries and they designed their own regulator. The Troy regulator is made by MPI. Not sure about the batteries.
Drew
Kurt hand assembles his own batteries and they designed their own regulator. The Troy regulator is made by MPI. Not sure about the batteries.
Drew
ORIGINAL: turbo4
You can get 1 2350mah and 1 4700mah + 2 miricle switches(switch-regs-charge all in one) for $149. Im curious why I hav'nt seen anyone else use this. I'm not battery/electrical savey, but it seems to me this is the same basic setup a lot are running for less $$. Unless I price it wrong the Fromeco stuff for 2 batts, 2 regs and 2 switches was gonna be $200+.
http://www.troybuiltmodels.com/Regulators.htm
http://www.troybuiltmodels.com/LiIonBatteries.htm
You can get 1 2350mah and 1 4700mah + 2 miricle switches(switch-regs-charge all in one) for $149. Im curious why I hav'nt seen anyone else use this. I'm not battery/electrical savey, but it seems to me this is the same basic setup a lot are running for less $$. Unless I price it wrong the Fromeco stuff for 2 batts, 2 regs and 2 switches was gonna be $200+.
http://www.troybuiltmodels.com/Regulators.htm
http://www.troybuiltmodels.com/LiIonBatteries.htm
#3834
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Mike I'm glad your maiden went well. Your plane and cowl turned out nice. I also flew this morning about 4 flights. It was just awesome. Congratulations.
Mike
Mike
#3835
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RE: Extreme Flight 87" Yak 54 - Build & Fly
PSK560, yes that is a bolly prop, DA recommended it as a good break in prop, I doubt I will change it after break in... I like your idea about using tunnel for cooling..... makes sense. Won't work for me, because the smoke tank is in the tunnel...
Mike, when I get back from Toledo, we gotta get together! I'll make a trip down to the rams field if the weather is nice...
Mike
Mike, when I get back from Toledo, we gotta get together! I'll make a trip down to the rams field if the weather is nice...
Mike
#3837
RE: Extreme Flight 87" Yak 54 - Build & Fly
There is room for a full tuned pipe .
Mine gets one
The header from Desert Aircraft fits either a DA50 or the ZDZ50 NG
For a tuned pipe - I would like to suggest the excellent new AMT 50 size full tuned pipe from RCShowcase - it weighs 10 ounces (under 300 grams). ($100.00)
This pipe will be shown in a 2+2 model at the Toledo show -in the RCShowcase booth.
Mt ZDZ50 NG pulls the JAS clone 23x8 Mejzlic (wood) at 7150 on this pipe.
smooth even transition.
Also -22x10 Mejzlic at 7200 +and the 22x8 Mejzlic at 7700.
The DA 50 should be similar .
So the tunnel is provided - why not use it ..
The hardest part in doing my new YAK- will be getting Guy to spray paint the Russian scheme I want,onto the all white airframe .
Mine gets one
The header from Desert Aircraft fits either a DA50 or the ZDZ50 NG
For a tuned pipe - I would like to suggest the excellent new AMT 50 size full tuned pipe from RCShowcase - it weighs 10 ounces (under 300 grams). ($100.00)
This pipe will be shown in a 2+2 model at the Toledo show -in the RCShowcase booth.
Mt ZDZ50 NG pulls the JAS clone 23x8 Mejzlic (wood) at 7150 on this pipe.
smooth even transition.
Also -22x10 Mejzlic at 7200 +and the 22x8 Mejzlic at 7700.
The DA 50 should be similar .
So the tunnel is provided - why not use it ..
The hardest part in doing my new YAK- will be getting Guy to spray paint the Russian scheme I want,onto the all white airframe .
#3838
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RE: Extreme Flight 87" Yak 54 - Build & Fly
ORIGINAL: bodyworks
Actually, unless you are including the weight of the header, that Krumscheid canister is HEAVIER than the Hyde pipe...it only weighs 227 grams (8 ounces) by itself. It is when you add the header and coupling that it goes to 13 ounces (369 grams). Also, according to Maudib's tests, the Hyde pipe produced 200 rpm more than any other stock or pitts-style muffler. The fact that I knew I could build this thing light and that the Hyde cannister sounds FRIGGIN SWEET and produces 200 extra RPM (which equals 12 ounces of extra thrust), I had to have it. If I have plenty of vertical performance at my altitude (6800 feet), I have the stock DA sitting around that I might consider.
ORIGINAL: flat spin
I don't know none of you are considering the Krumscheid canister. It only weighs 250g is very quiet and has a great throaty noise to it. I am turning a Mejzlik 23X8 at 6600, that's after a flight. Also they have put together a specific steel manifold for this plane and pipe combination ehat more could you ask for. I don't know if i'll get any more top end RPM as the engine runs in but 6600 with only a gallon and a bit through it ain't bad.
Someone mentioned wheels earlier. My spats have been completely destroyed, more through moveing the plane about than actual take off and landings, but anyway i ripped them off before they caused a problem. Anyway I looked at the lovely alloys which Robart are doing and thought they would like pretty good without spats, problem is they start at 4", does anyone know where i can get some similiar ones at 3.5" or do you reckon 4 would be too big, I don't want to look like i am flying a blinged up cub.
I don't know none of you are considering the Krumscheid canister. It only weighs 250g is very quiet and has a great throaty noise to it. I am turning a Mejzlik 23X8 at 6600, that's after a flight. Also they have put together a specific steel manifold for this plane and pipe combination ehat more could you ask for. I don't know if i'll get any more top end RPM as the engine runs in but 6600 with only a gallon and a bit through it ain't bad.
Someone mentioned wheels earlier. My spats have been completely destroyed, more through moveing the plane about than actual take off and landings, but anyway i ripped them off before they caused a problem. Anyway I looked at the lovely alloys which Robart are doing and thought they would like pretty good without spats, problem is they start at 4", does anyone know where i can get some similiar ones at 3.5" or do you reckon 4 would be too big, I don't want to look like i am flying a blinged up cub.
#3840
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RE: Extreme Flight 87" Yak 54 - Build & Fly
ORIGINAL: DrScoles
PSK560, yes that is a bolly prop, DA recommended it as a good break in prop, I doubt I will change it after break in... I like your idea about using tunnel for cooling..... makes sense. Won't work for me, because the smoke tank is in the tunnel...
Mike, when I get back from Toledo, we gotta get together! I'll make a trip down to the rams field if the weather is nice...
Mike
PSK560, yes that is a bolly prop, DA recommended it as a good break in prop, I doubt I will change it after break in... I like your idea about using tunnel for cooling..... makes sense. Won't work for me, because the smoke tank is in the tunnel...
Mike, when I get back from Toledo, we gotta get together! I'll make a trip down to the rams field if the weather is nice...
Mike
Drcsoles, how much that thing weight now that you got it finished?
#3841
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RE: Extreme Flight 87" Yak 54 - Build & Fly
That's great Ron. Now all we need to do is get Charles to come out too and we could have our very own Yak fest!
ten pillows
ten pillows
#3842
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RE: Extreme Flight 87" Yak 54 - Build & Fly
DRScoles, in your pictures it does not look like you epoxy coated the firewall? Maybe you did and it just a bad angle. If not I would as you want to protect all that bare wood around the engine.
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Anyone know the diameter of the inlet on the Chip Hyde quiet pipe? or the RCS 50-60 cc silencer?
And for those interested, I have been researching the Brison header dilemma. The Brison 3.2 has the same exhaust port size/bolt pattern as the King 50 cc (popular in Europe) and KS does make a double bend header for it, they also have an exhaust stack, and/or flange available, with elbows and such to "make" your own header. I'm sure that is the more expensive route, but might be the only option. Macs doesn't make any double bend headers
And for those interested, I have been researching the Brison header dilemma. The Brison 3.2 has the same exhaust port size/bolt pattern as the King 50 cc (popular in Europe) and KS does make a double bend header for it, they also have an exhaust stack, and/or flange available, with elbows and such to "make" your own header. I'm sure that is the more expensive route, but might be the only option. Macs doesn't make any double bend headers
#3844
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Bodyworks, definitely stop by the Duralite booth and say hi.....
turbo4, I did not coat the firewall, with the exhaust going 2" past the edge of the cowl, and a fairly tight fit around the muffler tip, I'm not worried about fuel/exhaust getting anywhere... After flying it yesterday and tearing the front end down to check bolt tightness, I didn't see a single hint of any residue..... I know this is common practice with glow planes, are all you guys doing this to yours?? Or, is this kinda like the keeping batteries away from the ignition system..deal...stuff people did for years, and its not absolutely necessary for certain applications?????
With my highly accurate digital bathroom scale the plane weighed 15.5 pounds... Thats with an 8 oz chunk of lead acting like a smoke pump.... Office depot was out of the postage scale I needed to get a more accurate measurement... I did the things everyone in here said to do to keep it light....carbon spinner, wood prop, muffler, all Duralite batts.... But I can't honestly say it is really 15.5.... I hope it is I thought about getting lighter wheels, but held the supplied ones in my hands, and thought..man..these are light! so left them on.... I am such a rook with these things anyway, that I probably wouldn't notice the difference between a heavy or light plane........
Mike
turbo4, I did not coat the firewall, with the exhaust going 2" past the edge of the cowl, and a fairly tight fit around the muffler tip, I'm not worried about fuel/exhaust getting anywhere... After flying it yesterday and tearing the front end down to check bolt tightness, I didn't see a single hint of any residue..... I know this is common practice with glow planes, are all you guys doing this to yours?? Or, is this kinda like the keeping batteries away from the ignition system..deal...stuff people did for years, and its not absolutely necessary for certain applications?????
With my highly accurate digital bathroom scale the plane weighed 15.5 pounds... Thats with an 8 oz chunk of lead acting like a smoke pump.... Office depot was out of the postage scale I needed to get a more accurate measurement... I did the things everyone in here said to do to keep it light....carbon spinner, wood prop, muffler, all Duralite batts.... But I can't honestly say it is really 15.5.... I hope it is I thought about getting lighter wheels, but held the supplied ones in my hands, and thought..man..these are light! so left them on.... I am such a rook with these things anyway, that I probably wouldn't notice the difference between a heavy or light plane........
Mike
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RE: Extreme Flight 87" Yak 54 - Build & Fly
ORIGINAL: DrScoles
Bodyworks, definitely stop by the Duralite booth and say hi.....
Bodyworks, definitely stop by the Duralite booth and say hi.....
Brian
#3846
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RE: Extreme Flight 87" Yak 54 - Build & Fly
BBribro, took about a quarter of a turn out on te bottom end and it showed no sign of dying. Lost a lot of responsiveness though so went in a bit from there, may have a bit to go but it was raining so did not get the chance. Can i get a bit of the resonsiveess back by leaning the top end, i know they both effect one another, ir will that end up with the same result?
#3847
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RE: Extreme Flight 87" Yak 54 - Build & Fly
ORIGINAL: flat spin
BBribro, took about a quarter of a turn out on te bottom end and it showed no sign of dying. Lost a lot of responsiveness though so went in a bit from there, may have a bit to go but it was raining so did not get the chance. Can i get a bit of the resonsiveess back by leaning the top end, i know they both effect one another, ir will that end up with the same result?
BBribro, took about a quarter of a turn out on te bottom end and it showed no sign of dying. Lost a lot of responsiveness though so went in a bit from there, may have a bit to go but it was raining so did not get the chance. Can i get a bit of the resonsiveess back by leaning the top end, i know they both effect one another, ir will that end up with the same result?
#3848
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Great well that makes things easier. I was told that they effected one another but it makes sense that it be the low effecting the high in this setup. Anyway it works and from what people tell me the transition is the key thing to improve at this stage in the run in. Cheers
#3849
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Ok guys, hate to announce this but after taking all the precautions (except hatch latch) including extra long bolts ....after 4 hrs. I still have one i can't get out....blind nut is spinning. What all have you done to get something like this out? I've tried pinning the blind nut from the other side but can't seem to hold it firm enough to back the bolt out.
I initially plugged the old holes and center drilled afterwards but my poor skill sets are holding me back here....any suggestions would be appreciated....it's gonna be the hatch latch after this!
Thanks
I initially plugged the old holes and center drilled afterwards but my poor skill sets are holding me back here....any suggestions would be appreciated....it's gonna be the hatch latch after this!
Thanks
#3850
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RE: Extreme Flight 87" Yak 54 - Build & Fly
Hey guys
I have about 10 new 5645 hitec's, and I was wondering if anyone thought it would be a problem using them on the elevators and using the 5945's on the wings, and of coarse the 8611 on the rudder, and even using a 5645 for the throttle which i know is more then enough, I was just wondering I would like to put these servos to use on something.
Thanks
Randy
I have about 10 new 5645 hitec's, and I was wondering if anyone thought it would be a problem using them on the elevators and using the 5945's on the wings, and of coarse the 8611 on the rudder, and even using a 5645 for the throttle which i know is more then enough, I was just wondering I would like to put these servos to use on something.
Thanks
Randy