RE: GP Cap 232
 

I just hope I can keep the weight down 14lbs or below. Like you said in a earlier post Bubba, the wing loading might be too great to 3D the way it should.

RE: GP Cap 232
 

A lot of the reasons why I am at the weight I got was because I only glued in one of the servo trays, I did not use a choke servo, and used Li-ION batteries for everything (4800 on the receiver at 6.6 ounces and 2400 at 3.3 ounces for the ignition, I could use a 2400 on the receiver and lose another 3.3 ounces but I like this combo as they both are ready for a recharge after the same number of flights which is close to 15 flights). I also used H9 Pro-Links on the elevators and Ailerons along with Dubro Safety lok clevises on the stock control horns and ball links on the servo arms and Central Hobbies Cf control rod kit on the rudder. I used SWB aluminum arms on the servos. All servos are Hitec 5945's and way more than enough

The CF Spinner really helped as it's easily 1/2 the weight of the stock one plus because of the lightened backplate on the stock one you cannot use it on the DA50.

RE: GP Cap 232
 

I did order a Tru Turn lighten spinner for the DA. But I'm sure it isnt as light as the carbon spinner. I plan on using a 6 volt 2000 mah on the receiver and a 1450 mah on the ignition. I'm going to make some cf rods with some 4-40 inserts with ball links on the servo end and the dubro snap links on the control end. I'm using hitec 645 on the ailerons and ele and a 5985 on the rudder. I guess my main concern is...am I "wasteing" the power of the DA on this bird? Would it have more use in a 84-85inch plane? Would I be better off going with the 160 and keep in light or take the chance of it being heavier than I planned and not be as light on the wing with the Da since the wing area is in the 1100 sq range. I've read alot that 50 cc engines are better for a plane with 1300-1400 squares. Those are the questions that keep going through my head Bubba

RE: GP Cap 232
 

Hey guys a DA 50 is overkill on this plane. I currently have one. It has the Fuji 43Bi engine on it and it hauls it around with ease. If you go to you tube and type in josh scofield you will see the video of my son flying it in a harrier all over the place. I dont think the Da 50 will be to heavy for the wing loading, but it will make it nose heavy requiring tail weight.

RE: GP Cap 232
 

Sewerdude, you will not be wasting the DA's power at all. If you remember I started out with the Fuji 43 on the first one and liked it a lot. That plane weighed 14lbs even. When that plane broke the nose off and GP sent me a new one I put the 43 in it and it still was at 14lbs. I had someone that really wanted the Fuji so much so he offered me what I paid for it and I had a Da50 looking for a home so in it went and I have been lovin life since.

I think you have seen whaturi's video with this plane on the OS160 plus he posted in here the night he flew mine and said he absolutely loved it. Power when you needed it, still flew very lite, tada yada yada...

You'll find a lot of thses with 50cc engines as well as the Evolution 45 and the Fuji 43. I've even seen one with a MVVS58 (whaturi's). Now that was true foamie power. He could not hover it for long as the ailerons could not overcome the torque and that was turning a 23x12 ZM prop. I watched him in a very low hover, plant the throttle and it was gone and I mean gone in a huge hurry

RE: GP Cap 232
 

:)I'm running the EVO45 on mine. That engine is virtually the same weight as the DA50. Mine balances nicely and is only 13lbs 5 ozs. I don't run wheel pants and I'm using carbon fiber pushrods but's that's about it. No effort to lighten the plane other than those. I'm using the stock spinner which works but I had to cut it quite a bit.

The DA will work fine on the plane. It will make more power than the EVO though so you may have to manage the throttle more...but I wouldn't worry about that.

Thanks
Barry

RE: GP Cap 232
 

Would love to get mine the same as yours Barry but I hope to be able to leave the wheel pants on. Heck if I'm anywhere under 14 lbs, I'll be happy. Were you able to mount your ignition battery up by the engine? Yea, I think this thing will ballistic.:D

RE: GP Cap 232
 

:)Sewerdude...

I have both batteries mounted mid ship. The ignition is on the firewall. My fuel tank is on the CG. My rudder servo is in the tail. I only used one rudder servo HS 5945. Everything balances really well with this set up.

Thanks
Barry

RE: GP Cap 232
 

hello ciao i am from italy. i see your video on flying giants: great.
i have the same plane, O.S. 1.60 , but i have great trouble about setting it: did u use a perry pump? my setting is not ok, it leans in hovering.
ciao francesco

RE: GP Cap 232
 

Ciao,

I can answer that for whaturi because I sold him the setup. No, he did not have a peery pump. He used 1/8th inch fuel line instead of the standard sized line along with the slimline pitts muffler.

RE: GP Cap 232
 

thank you for reply.
i have not tried it, but i have to go to unoflow fuel line setting with header tank. now it leans less, but i have less power too. but he set the tank in the standard location, pretty away from engine?

RE: GP Cap 232
 

Yes, the tank was in the stock position. Between the large fuel line and the Slimline muffler it was plenty powerful as you saw in the video. That was the Cap I owned that had the 43 Fuji in it that broke the front end off. I basically handed it to him and he bought the OS160 I had as a complete setup.

He did some cutting here and there to lighten it, flew it without the wheel pants or a spinner.

RE: GP Cap 232
 

thank bubba,
i have too slimline muffler- apc 18-6W - coolpower hely 15% - stock spinner. real floater, no wing loading problems, only engine trouble. i did think with big size lines you can have fuel leakege. i will try it.
thank you francesco

RE: GP Cap 232
 

When you use the larger line just use the very small wire ties to gold it in place. Replace the line all the way from the clunk in the tank to the carb, that includes the short line between the high speed needle valve and the carb

Also, do not forget to drill out the clunk in the tank to 1/8th inch or just by a bigger clunk. Dubro makes one that is already drilled for 1/8th inch line

RE: GP Cap 232
 

thanks bubba.
before to switch to big lines ( anyway i bought it )i will let him another chance with uniflow system and header tank. today a pretty nice couple of flight. to get the engine started i had to open one turn min. needle and 1, 1/2 turn max needle after i set the header tank!! and the max. needle setting is very insensitive ! i think it is caused by the new check valve ( steel sphere in it) i get in to replace the ys check valve i had before. ( on the uniflow setting , check valve is necessary due the fact the muffler pressurized clunk is low in the tank and the fuel will reflues in the muffler without it). anyway i have not experienced the leaning in hovering i had before uniflow setting. the next flight i will return to YS check valve and, if not satisfied i will go to normal setup with big lines. anyway i think 0.S. 1.60 is a great engine, but in this plane it is too far from the engine and too low, for 3D. i like the power to weight ratio, and with this setting the plane is really a floater, no unexpected snap, and i do not think would be the same with gasser.
ciao francesco

RE: GP Cap 232
 

Ciao,

If I understand you correctly you have a ckunk on the pressure line. That will casue lots of problems as the pressure has to push through the fuel then push the fuel into the line to the carb.

As you saw in whaturi's video this engine is plenty for 3D but you must follow the large line rule. Large glow/gas engines need larger lines it's that simple. whaturi's tank was in the stock location to the best of my knowledge so between the large line and the slimline muffler you shouuld not nbe having these problems, all the header tank is doing is actiing as an airtrap and putting the fuel closer but at the same time by using the check valve you are pressuring the main tank and header tank.

What you shoud be doing is running a 3 line tank system with 1/8th inch line from the clunk all the way to the carb, nornal lines for the pressure line to the muffler and fill line. Do not use the large line on the pressure line.

OS recommends this over in the OS engie support forum. This engine will draw fuel for around 10 inches if the tank is setup properly and the needles are tuned correctly. If you have no sensitivity on the high needle you are right on the border of running it lean. You should be able to open it up until the engine stops within roughly 4 turns.

RE: GP Cap 232
 

bubba i think you are right. and i have understood why the max. needle was so insensitive: in the little header tank for hely use the inner tube was smaller than normal tube !!!! this is why the engine was almost lean with needle max open 2, 1/2 turn!!!! i have to thank you, because without your advise i have not known it !!!
i will try your setup, and i shall let you know.
ciao, grazie
francesco

RE: GP Cap 232
 

What size standoffs are you using with the DA 50. Ready to order engine , but want to order right tandoffs. Thanks for any info

RE: GP Cap 232
 

I use the 3 inch ones and just move the cowl back to get the distance between the cowl and spinner correct.

RE: GP Cap 232
 

Thanks babbagates. Great thread here on this combination.

RE: GP Cap 232
 

ciao bubba! six great flights today ! the problem was on the header tank ( hely's small raptor). you buy it allready settled, but when i get to see inside the fuel lines where smaller than normal! now with another header ( normal dubro 2 o.) and normal lines with uniflow setup, great power and easy to set needle.( only one turn max. needle open ! plenty of fuel ! ).
thank you , without your suggestion i never will go to see inside lines!-
plase what kind of prop did you ( waturi ) use on your 1.60 fx ?
ciao, francesco

RE: GP Cap 232
 

Ciao,

I'm happy that you got it worked out. Now ou will find out just how powerful that engine really is

RE: GP Cap 232
 

A ZDZ 40f3a would be nice and light with this plane. (as light as most 25cc gasers)
Would I need to add weight to the front? or could I get buy puting the rudder to a pull-pull setup?
I would be using metal futaba servos w/ 2400 lithion GWS 2cell bat for all power. Also a batery back up for recever.

Any input would be appreciated!

RE: GP Cap 232
 

:)My opinion is you wouldn't have to add any weight at all. Worse case...you'd have to go to the pull/pull rudder servo.

That would be an interesting engine. I fly mine with the EVO 45.

Thanks
Barry

RE: GP Cap 232
 

Ok gents, I have a Moki 1.8 sitting on the shelf that is itching for a 3D plane, think this will be a good fit?