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Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Old 02-23-2006, 01:26 AM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

I was hoping for a same weight on GP yak as GP Cap but it seems bare weight is 1.5lb heavier. I don't intend to hijack the thread but you might want look at the GP cap. My DA50 with slimline (10.5oz) came in at 13.25lb.
I ordered titanium 10-32 prop bolts and stock da50 muffler, 1/4-20 aluminum screws for engine mount to bring the weight down to below 12.75lb.

It already flies super light.

At any rate, I was planning on purchasing the yak but 8.9lb bare without engine mount, cowl ring seem heavy to me.

Below link is the maiden of GP Cap 232.

http://www.flyinggiants.com/gallery/...o=1499&cat=504


Some of the weight savings for Gas users:

3cell 640mah lipo + 2amp 6v switching regulator @ 2.3oz ( capable of 6+ 15min flights )
3cell 1500mah lipo + 3.5amp 6v switching regulator @ 4.5oz <-- will switch to 910mah to save another 1.5oz
stock foam wheels are used at 2oz/pair
1 hitec 5955 servo in the tail for rudder
16oz dubro fuel tank instead of stock for 1.5oz savings.
no wheel pants
FG spinner instead of stock 3.5oz savings.


Can someone else double check the 8.9lb bare weight? I just can't believe much shorter fused yak weigh 1.5lb more than the cap.

Old 02-23-2006, 11:13 AM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Don d...
What hobby shop should I visit in Boise area on an upcoming business trip?
Thanks
Barry


Barry;

There is a hobby shop at Cole Road and Ustick. It is in a small shopping Mal there. I go to our LHS in Ontario, Oregon. Just a reaL SMALL place. They get me stuff at same price as tower.

Don
Old 02-23-2006, 11:29 AM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine


ORIGINAL: Hajduk


ORIGINAL: STG
I think that puts it at about one pound more than the H9 Extra 260 and about the same weight as the bigger QQ or EF Yak.
EF might be lighter, however, it is just not available. QQ 85” Yak weighs 16-17lbs and costs $739.95 (all white is $599.00 ??). My GP Yak ($359.00 delivered) is 81” and will weigh maximum of 15 lbs. I am confused? How’s that the same weight as larger QQ Yak? Unless I got my numbers wrong?
Most will claim that the QQ yak is the same weight and the E.F.--Not sure this is true. Yes, these birds do cost more.

http://www.rcuniverse.com/forum/m_32..._8/key_/tm.htm

Lee, My EF Yak came in at 15 pounds 4 OZ dry, Basically everything is the same except im using the stock muffler which if I remember correctly is about 5 oz liter and one less regulator, and a 3 1/4 inch spinnera nd no choke servo, Looks like the weight should be identical with the simular equip.

Question, upright elevator..... wing rock?

where is your recieve battery, and where is your CG ?
John
Old 02-23-2006, 11:33 AM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine


ORIGINAL: red_z06

I was hoping for a same weight on GP yak as GP Cap but it seems bare weight is 1.5lb heavier. I don't intend to hijack the thread but you might want look at the GP cap. My DA50 with slimline (10.5oz) came in at 13.25lb.
I ordered titanium 10-32 prop bolts and stock da50 muffler, 1/4-20 aluminum screws for engine mount to bring the weight down to below 12.75lb.

It already flies super light.

At any rate, I was planning on purchasing the yak but 8.9lb bare without engine mount, cowl ring seem heavy to me.

Below link is the maiden of GP Cap 232.

http://www.flyinggiants.com/gallery/...o=1499&cat=504


Some of the weight savings for Gas users:

3cell 640mah lipo + 2amp 6v switching regulator @ 2.3oz ( capable of 6+ 15min flights )
3cell 1500mah lipo + 3.5amp 6v switching regulator @ 4.5oz <-- will switch to 910mah to save another 1.5oz
stock foam wheels are used at 2oz/pair
1 hitec 5955 servo in the tail for rudder
16oz dubro fuel tank instead of stock for 1.5oz savings.
no wheel pants
FG spinner instead of stock 3.5oz savings.
Can someone else double check the 8.9lb bare weight? I just can't believe much shorter fused yak weigh 1.5lb more than the cap.
Wow, that is light! Stupid question....does the cap have a 1 piece wing?



Old 02-23-2006, 12:51 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

First of all, I want to apologize for going off subject!

STG:

It is one piece wing. For 78" wing, it REALLY is not bad at all. I am actually enjoying ( again back to glow days ) speedy assembly/disassembly at the field as it literally put together in a min or two.

I just received DA50 stock muffler and weighed in at 5oz with screws. That is 5.5oz savings just swapping.
I flew total of 8 16min flights and always had 7-8oz of fuel left in 16oz tank. I am considering going to 12oz as that is all is needed on this stupid light massive powered (for 13lb airplane) bird.

I like it so much too much (as my son would say) that I was going to buy another and put 10oz lighter zdz 40 re (rear exhaust) engine. But, I was also considering the sibling Yak 54. It is very disapointing to hear the weight. Can anyone double check the bare frame with all hardware weight?

BTW, the power is immence on 13.25lb bird. From hover, jerking the power translates to plane jumping up and it goes out of sight in seconds even with low pitched 22x8 prop.
Old 02-23-2006, 03:07 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

How would a Brison 2.4 be for this plane? I think it would be an ideal gasser match???
Old 02-23-2006, 04:14 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

It looks like it will be fine. If I had to buy a 40cc though, I would spend $80 more and get zdz 40 re at $525 and also get 20% more thrust at 25lb. But, if I already had a brison, I would not hesitate to use it. People spend $60 on a cf gear to save 3-5oz on this size bird. It might be worth the $80 to get 6oz saving over brison and get 4-5lb more thrust as a freebee. The muffler would weight less for pitts style too as it does not need the wrap around part.

If I had to choose, I would go with bme55 or zdz40re now that I have one working with DA50 but bem55 is not available and not sure how much to trust on customer service too. How is zdz service? Anyone?
Old 02-23-2006, 04:39 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine


ORIGINAL: red_z06

It looks like it will be fine. If I had to buy a 40cc though, I would spend $80 more and get zdz 40 re at $525 and also get 20% more thrust at 25lb. But, if I already had a brison, I would not hesitate to use it. People spend $60 on a cf gear to save 3-5oz on this size bird. It might be worth the $80 to get 6oz saving over brison and get 4-5lb more thrust as a freebee. The muffler would weight less for pitts style too as it does not need the wrap around part.

If I had to choose, I would go with bme55 or zdz40re now that I have one working with DA50 but bem55 is not available and not sure how much to trust on customer service too. How is zdz service? Anyone?

Sorry, not sure where I herd this so I am not sure it is 100% true (seen it posted somewhere [&:]), but I herd that ZDZ is coming out with a 40 soon that it 6 or 8 oz less then the current motor. I think it is geared at the pattern guys so I am not sure how $ it would be.
Old 02-23-2006, 06:31 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

It is already out and selling. The price is $525 same as side exhaust version but 1/2lb lighter than se. The muffler for it is cheaper at $69 as it is much simpler to make than wrap around.

It will make my cap 232 a 12.25 - 12.5lb bird with 25lb thrust.

I just flew today and for test i jammed my aileron as soon as it took off and went vertical. It did 20+ rolls while climbing until it became a speck.
Most other times that much power is simply useless.
Old 02-23-2006, 06:57 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Yeah, i already have a 2.4 Brison sitting here, i just noticed it is actually lighter than the zdz..... so i figured the give of power will come back in the reduction of weight. What do you think? would'nt you say it's a close match? ZDZ vs Brison 2.4?
Old 02-23-2006, 06:59 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Ohh Yeah... I'm picking my Yak up from the LHS tomorrow! Looking forward to it, it'll be my kick around plane!
Old 02-23-2006, 08:56 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Not the side exhaust version!! RE is 1/2lb lighter. New design targetting pattern guys.
Old 02-23-2006, 09:56 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Yes i know... i was refering to the older version.... Red.... you going to jump on one of these Yaks????
Old 02-23-2006, 10:23 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

if someone will confirm bare weight for me. I would prob pass if it comes in at 9lb+ as my aerotech yak with 1400+ wing area bare weight was only 10.5lb. But if it is anything near the cap 232 weight then I jump on it with zdz 40re. or bme55 but with bme I have to wait 2months
Old 02-24-2006, 06:24 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Well, I picked mine up today.... i was very pleased! The covering was Flawless!! (but like someone else said.....) I'll have to wait to get it out in the sun. The scheme is awesome, the pix don't do it justice...way better in person!
My only gripe which was handled promptly by great planes, was i had a small crack in the bottom of the cowl. New on is on the way already(no charge). I decided to get on the list for the BME 55 as it will make this thing in a word, Ridiculous. So, i plan on starting my build this weekend, there is no rush as there is a 2 month or so wait on the BME, but i am sure it's really going to be a perfect overpowered setup. My 260 with a D/A-50 has me spoiled. Heres my planned setup...
BME 55
Hitec 5955TG on Rudder 1
5645MG's the rest of the way around.
I'll probably go with a smaller fuel tank
Fromeco li-ions
The hardware i will also use my own (Dubro HD ball links clevices etc)

Overall, i am pleased with this plane it's a great value...
I can see the extra weight coming in from the fully sheeted surfaces/ail, rud,stabs.
The bottom of the fuse is a full length foam core and sheeted over as well
I can see where they could have improved on weight loss... but at least i can say they are improving! there is a lot more cut out of this thing in comparison to older models!
Looking forward to it! This thing going to be a monster with that BME! Comon Keith! Get 'em done!! LOL!!
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Old 02-24-2006, 09:05 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

I saw rcshowcase people today at the wram show. the zdz40re they have now is not the 2.4lb but 2.9lb same as se version.
The 2.4lb fai version is 2 months away and it will be higher than $525 current zdz40re. So, that leaves only bme55 as only contender at $550 adn 2.1lb.

3-d what is the weight of all the components put together?

BTW, switching regulators are high tech devices compared to linear regulators or lossy. I've had them in all my large electric planes with $1000+ batt in flight system.
Old 02-24-2006, 09:57 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

ORIGINAL: 3-D Flyer
My only gripe which was handled promptly by great planes, was i had a small crack in the bottom of the cowl. New on is on the way already(no charge).
I noticed that small crack on my cowl as well. However, it is so small I did not bother to ask for replacement. Now, I changed my mind.

I decided to get on the list for the BME 55 as it will make this thing in a word, Ridiculous.
Me too. I called them on that Texas phone number, got an answering machine, left a message and they never returned my call. How do you get on a list for that engine?

Here's my planned setup:
Already have Hitec 5925MG for aileron and elevators.
Already have Hitec 5955TG for a rudder
BME 55cc
Powerbox evolution 20/16
Old 02-24-2006, 10:40 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Hajduk.... Same here left a couple of messages, I am guessing more than likely his is just closed for the WRAM show this weekend. I do not think they are in the show (according to the wram show website vendor links) but i am sure he is there as a visitor all the same. Thats just my guess. I am sure he will call in a couple of days tho. Just make sure you leave a message of course. I hope i make the cut (if there is one!) I just sold my Brison 2.4 in anticipation for that 55![X(] LOL....

Did you call Great planes? They have always been real good with customer service... No questions asked, Just it'll go out today for ya, Keep or throw away the old one and we will have the replacement there in a day or 2. Can't beat that!

This plane is just a little smaller then i thought it would be, ( I have been building the 33% Cap580) and am currently having a 40% Carden 260 Built... so it's weird to look at this, but i am so Jazzed about this one and i'm not quite sure why yet! Uh O ! maybe i have just been bitten by the Yak Bug!
Old 02-24-2006, 11:08 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine


ORIGINAL: red_z06

I saw rcshowcase people today at the wram show. the zdz40re they have now is not the 2.4lb but 2.9lb same as se version.
The 2.4lb fai version is 2 months away and it will be higher than $525 current zdz40re. So, that leaves only bme55 as only contender at $550 adn 2.1lb.

3-d what is the weight of all the components put together?

BTW, switching regulators are high tech devices compared to linear regulators or lossy. I've had them in all my large electric planes with $1000+ batt in flight system.

Sorry Red, I missed your question.... I know you have been asking for this weight from others. I have no acurate way of doing this except for a bath scale, which IMO is by no means accurate. I have always taken most peoples opinions on weight with a grain of salt because of their means of measuring them. i don't mean to get anyone who uses a bath scale upset but how some people can post weights on a scale that told them the other day they lost 10#'s overnight is not quite accurate! Or that fish they caught the other day just turned out to be a throw back rather than a trophy winner! LOL! You guys know what i mean i'm sure.... I have read some pretty far out posts about "weight" differences in their planes, I usually just laugh. I'm not as worried anymore about this plane, I intend to build it completely less the engine and hopefully the BME-55 will hit its advertised weight. If so, I am not worried about sheddding an oz. here and an oz. There... I intend to beat the pi$$ out of this plane anyway! I just hope they come out when they expect them to now.....
Old 02-27-2006, 01:43 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Hey all,

Just placed my order thru Tower, it was a tough decision between the GP and CG Yak's, I didn't want to deal with quad alieron servos, essentially another $100 (5625's). I think I will steal my tail wheel assembly off my H9 Showtime. I hope the stab fits like someone said, if it does it might be easier than a tube.

I am going to wait on an engine choice.... would like a gasser, it would be my first. I have 3 new ones for the upcoming flying , I keep telling myself it will be soon..... and yet another white out is just outside my window...[&o][&o]

We need AeroBob to start a build thread for this

Mac
Old 02-27-2006, 01:51 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Forgot, on the BME 55, is that the throtle arm in the front?? How are you supposed to control that?

Mac
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Old 02-27-2006, 02:51 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

I havnt read all of this thread but I have to camment.

what kind of idiot over in china would designe some rudder setup like that, good heavens that is a messy heavy weak piece of crap.
Old 02-27-2006, 03:34 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Banche,

The pic is wrong, you can do dual tail OR dual pull/pull, if you use standard servos. Most folks are using a single 5955 TG servo for the rudder....look at the CG Yak thread, they have 2 servos per wing panel on a 77" bird.....that is why I chose to go w/ the GP version, it might not be the best but it is affordable

Mac
Old 02-27-2006, 04:40 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine


ORIGINAL: The MacDaddy

Forgot, on the BME 55, is that the throtle arm in the front?? How are you supposed to control that?

Mac
That looks like the choke arm to me. - Looks like it would be easier to set up for a manual choke but if you want to hook it up to a servo, good luck!
Old 02-27-2006, 05:08 PM
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Default RE: Great Planes 25% Yak 81" 12-lb, seen on Fly3D Magazine

Shakes,

Not familiar w/ gas engines....yet... I thought it might be the choke but where is the throttle arm? The reason for my comment is I have read "RC ready throtle" on some gas engine literature.

Mac

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