GREAT PLANES YAK 54 BUILD THREAD
06-22-2009, 11:01 AM
#176
RE: GREAT PLANES YAK 54 BUILD THREAD
ORIGINAL: Bdegan
Yes, Pull pull on the rudder.
Did the maiden tonight, went very well. We did a total of 4 flights.
The first flight took 1 click right aileron and 3 clicks of up. The plane flies really well. I am happy. My son who is 11 is really happy. He did 2 of the flights tonight.
It is not a hover machine with the OS160fx. It will hover, but at about 80% power. It will pull out from a hover, but very slow. But it does pull out.
Overall I likeit, it is a very nice flying plane.
Edit:
A little more info:
Servos are Hitec 5645 on elevators and ailerons, 985 on the rudder
ORIGINAL: Uncas
Began,
Did you use the pull-pull rudder setup?
Began,
Did you use the pull-pull rudder setup?
Did the maiden tonight, went very well. We did a total of 4 flights.
The first flight took 1 click right aileron and 3 clicks of up. The plane flies really well. I am happy. My son who is 11 is really happy. He did 2 of the flights tonight.
It is not a hover machine with the OS160fx. It will hover, but at about 80% power. It will pull out from a hover, but very slow. But it does pull out.
Overall I likeit, it is a very nice flying plane.
Edit:
A little more info:
Servos are Hitec 5645 on elevators and ailerons, 985 on the rudder
On what prop though?
Maybe if you could use a bigger diameter prop with less pitch,it would do the job better!
But MAN,
that plane looks gorgeous!
Happy flights!
And i think,
we all wait for some additional pics
06-22-2009, 12:04 PM
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RE: GREAT PLANES YAK 54 BUILD THREAD
ORIGINAL: Kostas1
On what prop though?
Maybe if you could use a bigger diameter prop with less pitch,it would do the job better!
And i think,
we all wait for some additional pics
On what prop though?
Maybe if you could use a bigger diameter prop with less pitch,it would do the job better!
And i think,
we all wait for some additional pics
Here are a couple of more pics
My son also took some video. But it is very hard to watch. He is shaking and walking around as he films. He also looses the plane in the picture quite a bit.
06-26-2009, 03:58 PM
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RE: GREAT PLANES YAK 54 BUILD THREAD
Does anybody is using the Sullivan skywriter smoke systen on Yak 54 GP 25 with DLE-55? Should I change the stock muffler to pitts to use it on?
Thank you all for any answer...
Roberto
Thank you all for any answer...
Roberto
07-13-2009, 03:39 PM
#181
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RE: GREAT PLANES YAK 54 BUILD THREAD
PLatero,
To fly freestyle which prop size do you recommend to run DLE-55 on yak 54 25% GP like yours: 22x8, 23x8 22x10 or 23x10? I will have XO AR one...
Many thanks.
ROberto
To fly freestyle which prop size do you recommend to run DLE-55 on yak 54 25% GP like yours: 22x8, 23x8 22x10 or 23x10? I will have XO AR one...
Many thanks.
ROberto
07-13-2009, 08:30 PM
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RE: GREAT PLANES YAK 54 BUILD THREAD
You can try a 22x8 to start. I know a few guys who are reporting good numbers swinging a 23x8 with their DLE55's. They are using the stock exhaust.
You may start to run into ground clearance issues with a 23 inch prop.
You may start to run into ground clearance issues with a 23 inch prop.
07-20-2009, 01:10 AM
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RE: GREAT PLANES YAK 54 BUILD THREAD
how much torque do you need on the servo's?
are these fine for ail/elev? http://www3.towerhobbies.com/cgi-bin...?&I=LXNRT1&P=0
and this one for rudder? http://www3.towerhobbies.com/cgi-bin...?&I=LXNRN6&P=0
are those servo's any good presicion wise. the first one is a little slow.
im planing on doing pattern/imac with the plane. maybe some 3d when im messing around
a friend of mine said digitals are a must and that you need 200 oz of torque or more and 300+ for the rudder.
do i really need that much torque? some of you guys are running 128oz of torque.
i plan on useing a dle55 for power, a123 for battery's and a futaba 10c radio. will the 10c be enough for 50cc gasers. mixing wise and such, will it be good for imac ?
thanks for dealing with all of my questions.
are these fine for ail/elev? http://www3.towerhobbies.com/cgi-bin...?&I=LXNRT1&P=0
and this one for rudder? http://www3.towerhobbies.com/cgi-bin...?&I=LXNRN6&P=0
are those servo's any good presicion wise. the first one is a little slow.
im planing on doing pattern/imac with the plane. maybe some 3d when im messing around
a friend of mine said digitals are a must and that you need 200 oz of torque or more and 300+ for the rudder.
do i really need that much torque? some of you guys are running 128oz of torque.
i plan on useing a dle55 for power, a123 for battery's and a futaba 10c radio. will the 10c be enough for 50cc gasers. mixing wise and such, will it be good for imac ?
thanks for dealing with all of my questions.
10-05-2009, 07:37 AM
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RE: GREAT PLANES YAK 54 BUILD THREAD
ORIGINAL: Kostas1
Any update on the airplane?
How does it fly?
Any update on the airplane?
How does it fly?
I have trouble with my hitec 5645 servos. They do not centering back after command. I should fly trimming the plane. Thats no good. Any help to centering the hitec servos?
Thanks.
10-14-2009, 04:46 PM
#186
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RE: GREAT PLANES YAK 54 BUILD THREAD
Does anybody know which aluminum (strong one) landing gear that fit in this yak 54 25% great planes. The stock one gone its no good one. I do not want to put carbon fiber one because I can broke it in the first landing....
Thank you.
Thank you.
10-18-2009, 06:09 PM
#187
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RE: GREAT PLANES YAK 54 BUILD THREAD
The stock aluminum landing gear sucks. It looks like you have not tried the right Carbon landing gear. I have had 4 different gears on my GP YAK 54 and there is only one that I can recommend. Talk to Mike over at Graph Tech. http://www.graphtechrcshop.com/produ...&categoryId=18
He came up with a newly desingned gear mid summer. It is way better than his earlier mains. His landing gear is amazing as you can see by my attached email I sent to Mike in September. My plane is really heavy (18.5 lbs) having a DA-50R a smoke system and 4 6 volt nicad battery packs.
Hi Mike.
Not sure if you remember me but I bought your new style landing gear for
my great planes 25% YAK 54 earlier this summer. On Sunday I had an
accident which destroyed your gear but saved my plane.
I was flying in alpha about 20 feet in the air doing some rolls. The
next thing I knew my plane was pointing at the ground. I powered up
trying to pull myself out, got the wings level but the plane belly
smacked the ground going at least 20 miles an hour. If I would have had
about 3 feet of more air I would have had a full recovery. I saw the
plane belly flop into ground with a big puff of dirt, the plane then
nosed over resting upside down.
I thought my plane was totally destroyed as I started the walk out to
the hay field to recover the wreckage. As I got closer I could see that
the bottom of my fuselage had NO damage whatsoever. Not even a monokote
tear.
Your gear took the full blow. As you can see in the picture, The prop
hit so your gear flexed a lot. My fuselage, engine, or cowl never hit
the ground. One side of the gear broke and the other de-laminated in
the middle of the strut but my plane NEVER hit the ground.
When I got the plane back to my workshop, I thoroughly inspected my
plane to verify it did not hit the ground other than damage to one wing
tip and one monokote hole in one aileron. I was amazed to see my landing
gear mounting block is still in excellent shape also.
You make one amazing landing gear my friend.
Thanks
John Malotky
He came up with a newly desingned gear mid summer. It is way better than his earlier mains. His landing gear is amazing as you can see by my attached email I sent to Mike in September. My plane is really heavy (18.5 lbs) having a DA-50R a smoke system and 4 6 volt nicad battery packs.
Hi Mike.
Not sure if you remember me but I bought your new style landing gear for
my great planes 25% YAK 54 earlier this summer. On Sunday I had an
accident which destroyed your gear but saved my plane.
I was flying in alpha about 20 feet in the air doing some rolls. The
next thing I knew my plane was pointing at the ground. I powered up
trying to pull myself out, got the wings level but the plane belly
smacked the ground going at least 20 miles an hour. If I would have had
about 3 feet of more air I would have had a full recovery. I saw the
plane belly flop into ground with a big puff of dirt, the plane then
nosed over resting upside down.
I thought my plane was totally destroyed as I started the walk out to
the hay field to recover the wreckage. As I got closer I could see that
the bottom of my fuselage had NO damage whatsoever. Not even a monokote
tear.
Your gear took the full blow. As you can see in the picture, The prop
hit so your gear flexed a lot. My fuselage, engine, or cowl never hit
the ground. One side of the gear broke and the other de-laminated in
the middle of the strut but my plane NEVER hit the ground.
When I got the plane back to my workshop, I thoroughly inspected my
plane to verify it did not hit the ground other than damage to one wing
tip and one monokote hole in one aileron. I was amazed to see my landing
gear mounting block is still in excellent shape also.
You make one amazing landing gear my friend.
Thanks
John Malotky
10-19-2009, 05:47 AM
#188
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RE: GREAT PLANES YAK 54 BUILD THREAD
ORIGINAL: jmalotky
The stock aluminum landing gear sucks. It looks like you have not tried the right Carbon landing gear. I have had 4 different gears on my GP YAK 54 and there is only one that I can recommend. Talk to Mike over at Graph Tech. http://www.graphtechrcshop.com/produ...&categoryId=18
He came up with a newly desingned gear mid summer. It is way better than his earlier mains. His landing gear is amazing as you can see by my attached email I sent to Mike in September. My plane is really heavy (18.5 lbs) having a DA-50R a smoke system and 4 6 volt nicad battery packs.
Hi Mike.
Not sure if you remember me but I bought your new style landing gear for
my great planes 25% YAK 54 earlier this summer. On Sunday I had an
accident which destroyed your gear but saved my plane.
I was flying in alpha about 20 feet in the air doing some rolls. The
next thing I knew my plane was pointing at the ground. I powered up
trying to pull myself out, got the wings level but the plane belly
smacked the ground going at least 20 miles an hour. If I would have had
about 3 feet of more air I would have had a full recovery. I saw the
plane belly flop into ground with a big puff of dirt, the plane then
nosed over resting upside down.
I thought my plane was totally destroyed as I started the walk out to
the hay field to recover the wreckage. As I got closer I could see that
the bottom of my fuselage had NO damage whatsoever. Not even a monokote
tear.
Your gear took the full blow. As you can see in the picture, The prop
hit so your gear flexed a lot. My fuselage, engine, or cowl never hit
the ground. One side of the gear broke and the other de-laminated in
the middle of the strut but my plane NEVER hit the ground.
When I got the plane back to my workshop, I thoroughly inspected my
plane to verify it did not hit the ground other than damage to one wing
tip and one monokote hole in one aileron. I was amazed to see my landing
gear mounting block is still in excellent shape also.
You make one amazing landing gear my friend.
Thanks
John Malotky
The stock aluminum landing gear sucks. It looks like you have not tried the right Carbon landing gear. I have had 4 different gears on my GP YAK 54 and there is only one that I can recommend. Talk to Mike over at Graph Tech. http://www.graphtechrcshop.com/produ...&categoryId=18
He came up with a newly desingned gear mid summer. It is way better than his earlier mains. His landing gear is amazing as you can see by my attached email I sent to Mike in September. My plane is really heavy (18.5 lbs) having a DA-50R a smoke system and 4 6 volt nicad battery packs.
Hi Mike.
Not sure if you remember me but I bought your new style landing gear for
my great planes 25% YAK 54 earlier this summer. On Sunday I had an
accident which destroyed your gear but saved my plane.
I was flying in alpha about 20 feet in the air doing some rolls. The
next thing I knew my plane was pointing at the ground. I powered up
trying to pull myself out, got the wings level but the plane belly
smacked the ground going at least 20 miles an hour. If I would have had
about 3 feet of more air I would have had a full recovery. I saw the
plane belly flop into ground with a big puff of dirt, the plane then
nosed over resting upside down.
I thought my plane was totally destroyed as I started the walk out to
the hay field to recover the wreckage. As I got closer I could see that
the bottom of my fuselage had NO damage whatsoever. Not even a monokote
tear.
Your gear took the full blow. As you can see in the picture, The prop
hit so your gear flexed a lot. My fuselage, engine, or cowl never hit
the ground. One side of the gear broke and the other de-laminated in
the middle of the strut but my plane NEVER hit the ground.
When I got the plane back to my workshop, I thoroughly inspected my
plane to verify it did not hit the ground other than damage to one wing
tip and one monokote hole in one aileron. I was amazed to see my landing
gear mounting block is still in excellent shape also.
You make one amazing landing gear my friend.
Thanks
John Malotky
Thank you John. I just order mine today.
Do you remember if this landing gear can be used with the 23 x 8 propeller? Because with the stock one the 23 x 8 comes so near the ground. Please, if you can, send me some pictures that you sent to Mike and other pictures with your new landing gear to my email: [email protected]
Thank you.
10-19-2009, 10:59 AM
#189
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RE: GREAT PLANES YAK 54 BUILD THREAD
I had to pull the os200fs out and replace it with the recommended 1.60fx. I haven't flown it yet but wow, with a 18x6 vess prop it really screams. Can't wait to try it out.
10-19-2009, 06:51 PM
#190
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RE: GREAT PLANES YAK 54 BUILD THREAD
The landing gear is about 1 inch higher than the stock gear. I have run a 23x8 on my bird so it will clear. I use a Menz 22x8 normally.
Attached is a picture after the crash. As you can see, the plane never bottomed out. The only strike is on the very wing tip and it is minor. When the gear shattered it sounded like a gun shot blast. After hearing that, I thought my YAK was a goner. Remember that I hit the ground at full throttle trying to recover. As you can see, both blades on my prop are gone. At the time, in my head, I was clear and recovered. Unfortunately the ground was about 3 feet too high.
One more note, I have had so many gear failures in the past and was so sick and tired of re-doing the wing saddle, I made a new gear mounting block on the bottom of my airframe. That explains the white monocote over the gear. Normally who sees it anyway. This is a kick butt 3D plane, not a static display model.
I have dismantled my entire landing gear blocks from the airframe to inspect. I even dismantled the tail wheel, which is also a graph tec product. There was NO internal damage whatsoever. The gear completely took the hit and saved my YAK. This plane has been in the air and back to normal.
I highly recomend GraphTechRC.com's landing gears.
JM
Attached is a picture after the crash. As you can see, the plane never bottomed out. The only strike is on the very wing tip and it is minor. When the gear shattered it sounded like a gun shot blast. After hearing that, I thought my YAK was a goner. Remember that I hit the ground at full throttle trying to recover. As you can see, both blades on my prop are gone. At the time, in my head, I was clear and recovered. Unfortunately the ground was about 3 feet too high.
One more note, I have had so many gear failures in the past and was so sick and tired of re-doing the wing saddle, I made a new gear mounting block on the bottom of my airframe. That explains the white monocote over the gear. Normally who sees it anyway. This is a kick butt 3D plane, not a static display model.
I have dismantled my entire landing gear blocks from the airframe to inspect. I even dismantled the tail wheel, which is also a graph tec product. There was NO internal damage whatsoever. The gear completely took the hit and saved my YAK. This plane has been in the air and back to normal.
I highly recomend GraphTechRC.com's landing gears.
JM
10-24-2009, 09:53 PM
#192
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RE: GREAT PLANES YAK 54 BUILD THREAD
has anyone put a dle 30 on one of these? in the gas forums they are making some serious power yet will weigh much less than a 50cc keeping the wingloading down
10-25-2009, 08:16 PM
#193
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RE: GREAT PLANES YAK 54 BUILD THREAD
ORIGINAL: jimmyjames213
has anyone put a dle 30 on one of these? in the gas forums they are making some serious power yet will weigh much less than a 50cc keeping the wingloading down
has anyone put a dle 30 on one of these? in the gas forums they are making some serious power yet will weigh much less than a 50cc keeping the wingloading down
I believe the DLE-30 could be a good gas engine choice for this plane. It looks like the power and weight is about the same as an OS-160. I figure it will come in about 1 lb lighter than my DA-50 setup which has me at 14.5 lbs and a whopping 29.6 oz/sq ft of wing loading. With the DLE-30 it would come in around 13.5 lbs with a wing loading of about 27.3 - still a bit high. The real challenge is not having to add any nose weight. It looks like most people that use a 1.60 have to add 8 or more oz of weight to the nose.
Using the 1.60 would also allow you to dump the ignition battery and switch. But still, how do you get a good COG without adding weight? I was thinking you could move the elevator servos up next to the rudder servo(s) to avoid adding balance weight to the nose.
02-17-2010, 07:23 AM
#194
RE: GREAT PLANES YAK 54 BUILD THREAD
Maybe a bit off-topic but is the bottom of the fuselage balsa sheeted?
So is it like the turtle deck, i.e. foam + balsa sheeting?
Artto
So is it like the turtle deck, i.e. foam + balsa sheeting?
Artto
09-13-2010, 10:57 PM
#195
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RE: GREAT PLANES YAK 54 BUILD THREAD
hello
I just picked up this plane with a DLE 55 my question is would Hitec 5625s be ok for the wings or should I use 5645s I have 5945s for the elevators
Thanks Tim
I just picked up this plane with a DLE 55 my question is would Hitec 5625s be ok for the wings or should I use 5645s I have 5945s for the elevators
Thanks Tim
09-20-2010, 08:09 PM
#196
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RE: GREAT PLANES YAK 54 BUILD THREAD
The bottom of the plane is foam. Not good when gasoline drops on it. Guy at the field recommended coating it with resin.
I use 5625's and they are fine. I originally used 645's and they were very bad - lots of flutter. I believe the key is the tight deadband of the digital, not the torque.
Great Planes landing gear may not be the best but it is very cheap, which I like.
I use 5625's and they are fine. I originally used 645's and they were very bad - lots of flutter. I believe the key is the tight deadband of the digital, not the torque.
Great Planes landing gear may not be the best but it is very cheap, which I like.
05-04-2011, 03:01 AM
#199
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RE: GREAT PLANES YAK 54 BUILD THREAD
Mike, running a DLE-30, the problem would be one of balance. I have a Fuji 43 in mine. Not a real powerhouse. Previously, using the normal mount (which does not use any standoffs), she needed a pound of lead in the nose. I added some standoffs and rebuilt the ship, also moved the rudder servo to the cabin area (pull-pull). It now seems to balance right about at the wing tube. I also have two LiFe batts amidships the fuel tank, so everything's up in the nose, but at least, I was able to remove the lead.
I'm afraid that with anything light, like a DL-30 (of which I have 4), you'd need almost two pounds of lead in the nose. In fact, even if you put a DLE-55 in the nose, you'd also need lead. Fuji's are heavy engines, so there's some minor benefit to using the Fuji in the Yak. Great Planes aircraft, as a rule, are not built lightly. The Yak is a fairly heavy ship. With a DLE-30 and the lead associated with balancing it well, the 30 might be taxed a little. I'm sure she'd fly, and like with the Fuji 43, it would fly most aerobatic maneuvers (IMAC), which is what this ship was designed to do. I think you'd be flying in the upper throttle ranges, most of the time. That's my opinion and it would be neat to hear from anyone that's flown with the 30 in the buinsess end of this ship.
I'm afraid that with anything light, like a DL-30 (of which I have 4), you'd need almost two pounds of lead in the nose. In fact, even if you put a DLE-55 in the nose, you'd also need lead. Fuji's are heavy engines, so there's some minor benefit to using the Fuji in the Yak. Great Planes aircraft, as a rule, are not built lightly. The Yak is a fairly heavy ship. With a DLE-30 and the lead associated with balancing it well, the 30 might be taxed a little. I'm sure she'd fly, and like with the Fuji 43, it would fly most aerobatic maneuvers (IMAC), which is what this ship was designed to do. I think you'd be flying in the upper throttle ranges, most of the time. That's my opinion and it would be neat to hear from anyone that's flown with the 30 in the buinsess end of this ship.
05-04-2011, 04:36 AM
#200
RE: GREAT PLANES YAK 54 BUILD THREAD
I am a "Snowbird" and on my way to UpState NY 9 May with a GP 1/4 YAK tucked away
in the Car with a DLE 30 what has been installed and them taken off for transport.
Also the "tail feathers" have not been installed for easy transport so I have
never gotten to the CG check YET. When all is done I will post again! Oh, I also
have a DLE 55 tucked away in there just in case the 30 does not work out.
in the Car with a DLE 30 what has been installed and them taken off for transport.
Also the "tail feathers" have not been installed for easy transport so I have
never gotten to the CG check YET. When all is done I will post again! Oh, I also
have a DLE 55 tucked away in there just in case the 30 does not work out.