jjjvr

Ok read some of the old posts and it would seam there are no agreement insofar the real advantages of a front wing position vs rear, so I will just stick with the rear then. I am hoever still going to reduce weight as much as possible. I have done about 15 flights or so with this configuration and beside the occational unexpected wing dropping and less than eagerness for hovering its not too bad at all. (CG maybe too far forward) The only other thing I found was that it would seam that I have too much down thrust, (nose diving with acceleration) an maybe even too little right angle as well, anybody else found this?

kochj

JJJvr,
Sounds like you have the Cf gear laid out....
You can also go with lightweight Cavan tires and Titanium wheel axels...
Stick an 80cc gasser in it as well... Those besides the CF main tube and gear, that will give you the most weight savings.
I wouldn't start to re-engineer the plane... structure taken out of it and too creative with the dremel tool can leave you with a very
Flexing aircraft that will be very vulnerable when performing aerobatics. I don't think that it is worth the trouble to cut all that out...
Only reason I would think to start cutting and pasting on this plane would be to add a tunnel for cans or tuned pipes...
I think you have done enough.

What are you going to paint it like?? Should look great.

jjjvr

kochj, thx will get the titanium axels, tried the kavans but on our tarred runway my first set only lasted about three flights to first puncture!, just using the narrow thread rubber pumpup dubros now. Regarding the paint scheme, still tossing some ideas but the mechlaren F1 paint scheme would look nice (but that would be betraying ferrari,,,), otherwise just some nice pealaway and waved checkered flags. Anyway I will post a pic once i am done.

Darrinc

My Feedback: (5)

Ah yes, the Cap takes about 2 to 3 degrees up thrust.

With this model, it flies more like a Cap with the back wing tube and more like a extra at the front position. A Cap is normaly short coupled compared to a Extra.

airstik2003

so if i have the plane balenced in the rear wing pos. will i have to rebalence if i start to use the front tube

thanks

Darrinc

My Feedback: (5)

Yes. The lighter front, the easier to move the to the back tube

perche

Heavy? makes me think of a cap 21 that i got from my dad. Came from Gearman in 1980. vsp 2,2 meters. Webra bulley 36cc in the nose. over 10kg heavy!!! Built like a boat, fuse in fiberglass. plane still in one pice

nice in the air, but a nigthmare to land. falls like a brick. So im quite happy with my stock cap 580.

Darrinc

My Feedback: (5)

Hahahaha, there is no shame in that, good on you!

kochj

Sounds good...
The kavan I had were the cheepies!.... still light weight (plastic treads)
I understand what you mean about the tires though.... They are fragile when compared to others.

testpilot101

My Feedback: (4)

Hey just wanted to ask how the 3W 106 B2 is holding up? I have the same Cap 580. I am about to start build up. It seems that every one on this site are DA fans and finally a 3W guy! I have not bought an engine yet, so I would like your comments or any thing you might want to share, on the 3W. Thanks.


Chris-

kochj

I like 3W's engines.......as well!
But being that I live in the states I like that DA is right here. I never have to wait for parts and they have always treated me well...
I though about getting a 85Cs but the Euro to US dollar is only going to get worse....

perche

Da/3w=coke/Pepsi

airstik2003

i couldn't have put it better my self

testpilot101

My Feedback: (4)

Thanks Guys....that really helps. Love the soft drink analogy.

Flyjets

My Feedback: (51)

Just wanted to Posts a warning to all U GP Cap 3D guys.

As some of U might know I owned this machine and enjoyed flying it.

Last week a fellow asked me to Fly his Cap and help him with the Radio setup and get my impression of his Model.

I noticed he used the stock servo horns and inserts I did mention this was less then ideal and I would change the arms to solid aluminum arms.

He is a new member of our Club and I have witnessed him Fly on several occasions a average new Giant scale Pilot.

However as he gained confidence he started to really yank the Cap about. The tail insert in the stock control horn stripped out.

This coupled with his limited experience caused the Rudder to remain deflected and he lost the machine in a slow death spiral.

So here is my warning to all of U. If U do Fly this Cap hard please use a solid Aluminum control horn on your control surfaces.

Hope this doesn't happen to anyone else.

Ian

kochj

Ian.....

I have thought of that my self!......

I will be using the stock Horns off my HItech's these have been bullit proof even on the 40% planes......

I would be willing to bet that he had the rudder servos fighting each other and or he may have used the Wrong insert? (not saying that He is an idioasssoo, I just havn't heard or one failure so far!!)

Let me know if this was a possibility??

Justin

sevans16

So are you talking about the Servo arms or the control horn on the control surfaces? I have seen there servo arms with plastic inserts on other planes, I never use them myself. I always use SWB control arms.

I am considering this plane, I would like to use the new DA-100 in it. Has anyone set this plane up with one? Which wing tube hole would I use with it?

badedge540

My Feedback: (22)

Flyjets i know what you mean i had the same thing happen to me the rudder stripped to full right all i could do is knife edge till i was close to ground then flatten it out and hit and distroyed plane. called great plane and told them they told me to cut it up and send it in with parts in question and they sent me a new plane no charge thats customer service. the control horn idea they have is great but they need to be aluminun insertes instead of plastic.

kochj

They must have stripped on there own then.......

I would agree, that they need to be Aluminum inserts, not the plastic....

kochj

Sounds like you have nothing to worry about then......

The engine isn't going to be that much lighter.......

Make a mount for you servo to be up front...

Use a single or double standard strong servo insted of the 2-giant servos in the back and use back wingtube position...... back I believe?

Using smaller servo or servos will off set and lack of weight in the front of the plane... due to the lighter engine......

otherwise, no difference between the old and new....

gregman50

I would use a 8711 on the rudder, 5985's on ailerons and 5955's on the elevator with the new DA-100, I think that this plane would be awesome. Just be sure to use the metal arms, SWB, MPI or such on your servos. I have looked at this plane for a couple of years now. The price of all the other arf's out there make this one look real good.

peter1b1

HI everyone,

has anyone had any problems with the Hitec servos? I have the 5955's on my Cap and over here there is talk that the Hitec's don't centre properly and the a notable rep over here is rumored to also bag the servos. I have been using the 5955's on my Cap and the 5925's on my older Extra 330L with no issues.

airstik2003

my dad and i hav been using 5955s for the past 2 years, without problems.
now sometimes we have a bad servo in a batch but we just send it back to hitec and they send us a new servo for free.

kochj

How is the 80-85cc engine comming along????

Is it beating the crap out of the airframe???
I know that this one has much more balsa and that maybe why it is holding up... (absorbs the excess vibration)

As a side note, guys are having a heck of time keeping there Hangar 9 Sukhoi SU-26MM ARF together..... (They have done all the balancing requirements)
It seems to fall apart after 5-flights.... It has got me worried now, about using a 80-85cc in my Lanier 94" planes....

I have a old DA 100 that is for this plane.... I have all the CF light weight stuff, but thought I wanted it lighter......

I have to possibly reconsider my options..... Perhaps a home made hyde mount is needed on these big singles....

mrbigg

My Feedback: (21)

Use a ZDZ 80. So the DA 85 is a Shaker?