irocbsa

My Feedback: (12)

The maiden was nothing special. I had a DLE 30 in it at the time and added about 1.5lbs to the nose to get it to balance. I have since re-equipped it with an EME55 w/autostart and it's a perfect match. 1.5oz in the tail to balance it. I can't recall where I put the cg but I did move it towards the rear of the plane since I was having a few nose overs on our rough grass field.

har28

Hello to all friends, after some time of inactivity, i started the build of my model again! One reason I quit the building was that I wanted to collect some money to order a pair of better retracts. Those that I get from the Chinese they worked well and seem very robust, at least on the bench that I've tried.I just wanted a better brand to inspire more confidence. So it became, ordered by Lado the new series the RS333 74 degrees so i have finally the scale result on struts! After contacting him, he assured me that I will not have any problem with these retracts and can comfortably withstand the weight of my model. He also told me that has given many of those retracts for thesame model and that for years had no problem! So I was convinced and I ordered and am now waiting for their arrival!

scootrb4

Hope you don't mind I would post a pic of mine.
Nicely powered by XYZ 53cc twin. 20x10 prop and 8 oz in the nose tips the scale at 130mm

wagen017

Hi Harris, with those LADO retracts you should be OK, they work very well on mine! What I did do is to connect them to my receiver via a Y-cable. Before I had them on seperate channels on the receiver.
Never figured out why but it happened to me that after retracting one leg was up and the other still down!! Very bad situation. Then when I put the retracts down one went down.... and the other went up! Still only only leg out. Then I switched a couple of times with the result that both were out! Coming in for the landing one went up again! Disaster. In the end I was able to time the landing in such a way that I touched down just when both were out. Hairy experience! So use a Y-cable.

Volkert

har28

Hallo Volkert thank you for your tip, i am using Y cable and not separate channels and they work just fine. I haven't airborne yet but i will next week.

har28

Here are and some pics

har28

And here is the video testing the retracts and flaps

https://www.youtube.com/watch?v=2kN_ztO6N9o

wagen017

Ah, we had some good flying this weekend!!!!!

wagen017

I was flying hammerhead stalls but it got quite windy in the end of the day. When I got into the stall the plane was flipped horizontal and got into a flat spin out of which I recovered too late. The plane got barely flying when it hit the ground.

Anyway, I ordered immediately a new ESM FW-190 so now the question is which scheme to put on it. I liked the Rote 13; possible alternative is below. Open for suggestions! I am looking ideally for a plane that flew here in the Netherlands, IV/JG-1 flew in Berlin at that time so in principle does not qualify!!

wagen017

Here is an alternative:

Richard L.

My Feedback: (24)

Apologies if a side view overlay has been posted, but attached is a scale drawing of an A8 placed on top of your side pic to show the differences. I would rather add nose weight to keep the side profile somewhat accurate, but that's just me.

Dowmer

My Feedback: (1)

As you can see the tail and gun hood are waaaay off. Along with the sweep of the wing.

Richard L.

My Feedback: (24)

Everything from the front of the cowl to the rear of the canopy looks pretty good though, including the cowl and the canopy. After the canopy, things begin to take a wrong turn as if the tail feathers were considered an afterthought.

airfix

Hi all, I dug my electrified version out of the garage (it had not flown for a few years),and it flies as well as ever. Here is a movie shot by my mate Bob. Cheers, Al

https://www.youtube.com/watch?v=WphqiepMkEg

Richard L.

My Feedback: (24)

Very nice flying. Great take off and landing. I wish more people would use right rudder on take off like you did. Numerous videos of this plane on YouTube show the plane veering sharply to the left on take off. The rudder is your best friend people.

wagen017

Looks like they took a short cut on the tail to prevent needing even more dead weight up front to compensate?

Airfix, very nice flight!

Volkert

warbirdfan2

Airfix... Nice smooth flight. How did your cameraman manage to stay with you zoomed in so close??? Could you tell us about your electric setup? Motor, battery cell count,esc, prop?

airfix

Thanks for the kind comments :-).

The aircraft uses a Turnigy 6364 230kV motor with a 21 x 13 APC 2 blade propeller, a Turnigy Sentillon 100 Amp opto ESC, and 8 cell 5000mAh battery (2 x 4 cells in series).

All up weight is 18.5 lb, and no ballast was needed to get the CG. The batteries are on a ply board which slides down on rails fitted on the front of the firewall in between ali stand-offs. A rectangular hatch was cut at the top rear of the cowl for battery access/removal. The motor is mounted to a ply mount on the standoffs to get it in the right place.

I posted some pictures way earlier in the thread.

Yes, Bob is pretty good with the camera, we practise a lot together so he knows pretty much the routine I will be flying, which helps a little.

Al

warbirdfan2

Thanks for the setup info. I'll go back through the thread and look for those pics.

[email protected]

Has anybody managed to get this bird in at 7kg or under?

phil

paladin

My Feedback: (9)

idk what my wt is but it is very nimble. does not fly heavy at all.

Joe

LaxLife72

My Feedback: (108)

Airfix thanks for the pics on your battery placement. Forward of the firewall is always more problematic but I am finding that is the only way to get this bird to balance without adding weight. The instruction set I have suggests an AUW of 12 pounds and I'm at 17 now with two 5s, 5000mAh lipos plus seperate receiver and separate retract packs. It also gives a single 130cm COG from wing root and not a range up to 145cm as stated back on page 25 of this forum. I have installed the Gen4 electric retracts from VQ. They are heavy and they work nicely but the doors bind so I'll have to fine tune the door mounts for an exact fit that doesn't bind. One hard landing and they'll need to be readjusted/remounted. Also the VQ4's have a separate controller which has a nice convenient test button but also seems to have a proprietary wiring scheme from controller to RX which does not follow the standard servo wiring of signal, positive, negative. I hope VQ's wires aren't actually crossed and will still work in a standard RX. We'll see. I am going to scrap the installed Hacker C50 14xL inrunner which is too bad as I love the turbine sound the Acro gear box creates. I'm turning the 3 bladed prop option for scale realism over power. The Rimfire 50cc on wide standoffs will have more power, 12s capability, more weight forward and the standoffs will give room for the lipo ahead of the firewall like Airfix's. I do hate the idea of cutting the top of the cowl as I am not practiced at cowl cutting. Perhaps I'll have a hatch on the bottom. I guess I'd use a dremel with a cutoff blade for cowl cutting; any suggestions?

LaxLife72

My Feedback: (108)

not the Rimfire 50cc, my mistake, the Rimfire 1.60 is the right match
2700 continuous watts
3200 burst watts
10-12s capable
80 amps max
250kv

colemn615

Hey everyone, this thread has been asleep for a little bit. I am considering getting one of these models. I am currently wondering how much torque I will need for Ailerons, Elevator, Rudder, and Flaps. I am also debating on the engine. OS33, DLE 35 Evolution 33, or EME 35. It seems that in the 35cc range that most need weight on the nose still.

paladin

My Feedback: (9)

colemn, this where I figured it out for mine. I used twice what this calculator said I needed

http://www.mnbigbirds.com/Servo%20To...0Caculator.htm

Joe