Roban AH-1W Cobra 700 Size Scale Helicopter

[DCORSAIR]

Hi,

I got the bird up! I need to make some adjustments to the collective scheme, then get her decals on, add more lights and then airbrush some weather and soot on. Are these included decals water-slide?

Sweet, you seen mine already I'm sure, but I will try to get a recent video uploaded that I did over the weekend, I have the same one and yours looks to be flying well.

[Shaun Evans]

Hi,

I got the bird up! I need to make some adjustments to the collective scheme, then get her decals on, add more lights and then airbrush some weather and soot on. Are these included decals water-slide?

[F106DeltaDart]

How many of you guys had to balance your stock blades?

Always have needed to. Close, but still needed adjustments.

[Gravythe clown]

I e had to balance blades on all my scale helicopters.

Gravy

[Shaun Evans]

How many of you guys had to balance your stock blades?

[Clugh]

I'm using the Egodrift 4525-515Kv and usually have 5500 to 6000mah packs (12S) and my timer is set to 8 minutes. I have very slow spool up... so It's about 7 minutes of 'semi-aggressive' scale flight... When I land I usually am at ~3.7v per cell.

Not to go too far off topic but what did you run before the egodrift? did you see improvements? Vincent makes a nice motor but I haven't rewound one yet because I was not able to acquire a raw stack and didn't want to tear a good motor down. What ws the average amp draw and what were the peaks you saw.

[sfcfury]

I'm using the Egodrift 4525-515Kv and usually have 5500 to 6000mah packs (12S) and my timer is set to 8 minutes. I have very slow spool up... so It's about 7 minutes of 'semi-aggressive' scale flight... When I land I usually am at ~3.7v per cell.

[DCORSAIR]

Thank you for your reply. Yes, I was wondering about the e power . What series 530Kv. How many cells and what is the average runtime? If you do not mind me asking.

Oh no problem, 4035-530kv, running on 12 cells, around 5-6 minute flight times and land around 3.85v per cell and that's with my old Gensace 60c 5000mah packs, haven't tried my new HRB 5000 100C packs yet so I'm sure I will get even better flight times with those. I don't know my head speed, I just go by the sound I hear and how the heli responds to my stick position, been doing this a long time so I don't calculate anything.

Its been a few months since I have flown it, time to get her down and take it up for a few sorties.

[Clugh]

Powering as in motor?, It has a Scorpion 530kv as for motor, KST HV 1035 tail servo, MKS 1220 cyclic servos, Kontronik 160 ESC, Futaba 6303R SBus rx with a Microbeast FBL controller, all stock kit and this is the older kit with the single bearing lever control arms to swashplate, got it dialed in nicely and very easy to fly.

Thank you for your reply. Yes, I was wondering about the e power . What series 530Kv. How many cells and what is the average runtime? If you do not mind me asking.

[DCORSAIR]

Man thats nice! Looks scale and sounds good too. What are you powering it with?

Powering as in motor?, It has a Scorpion 530kv as for motor, KST HV 1035 tail servo, MKS 1220 cyclic servos, Kontronik 160 ESC, Futaba 6303R SBus rx with a Microbeast FBL controller, all stock kit and this is the older kit with the single bearing lever control arms to swashplate, got it dialed in nicely and very easy to fly.

[Clugh]

Sorry for the bad video, had no one to hold the camera.

Man thats nice! Looks scale and sounds good too. What are you powering it with?

[DCORSAIR]

Sorry for the bad video, had no one to hold the camera.

[DCORSAIR]

[DCORSAIR]

Thanks!

I went with the MKS servos, Brain2 FBL, Hobbywing 130 and the recommended Scorpion motor. The tail seems to have quite a bit of up/down shake. It's literally been almost 20 years since I've flown a heli, and they all had flybars, so I'm not sure what to focus on (tuning-wise). Also, the fit of the head/spindle to the main-shaft isn't precise. I've tried differential tightness on the clamp bolts to even it out, and it's helped a little, but there's still some wobble I can't seem to get rid of. Ideas? Did you guys have to balance the included blades much?

I wouldn't fly to aggressive with these Roban scale mechanics, if you do fly like that keep an eye on all the metal gears for wear, they have been known to strip out the teeth if flown to aggressively, also your video looks like its flying great as for vibes, maybe in person you see it better than we do, I really couldn't see it bobbing up and down, you will get vibes and certain shakes on spool up but once it goes through that head speed it should get smooth, I have owned 5 Roban scale helis over the last three yrs and they all seem to have certain vibes that are head to find, I think the production parts and tolerances are not all that great but they do fly good, seem to get better after more flights and as the parts wear in. I always balance my main blades and tail, some take a little tape, some don't. My 700 size Roban Cobra actually flies really good and its the only one I own at the moment, its kind of sporty to fly compared to the 700 size Apache, 800 size OH-6, AH-6 and the 800 Hughes 500, the Hughes 500 is a close second though, they also fly really good to be so big.

[Shaun Evans]

Looks good... went straight to smack flying the mechanics lol... What FBL/Motor/ESC did you go with?

Thanks!

I went with the MKS servos, Brain2 FBL, Hobbywing 130 and the recommended Scorpion motor. The tail seems to have quite a bit of up/down shake. It's literally been almost 20 years since I've flown a heli, and they all had flybars, so I'm not sure what to focus on (tuning-wise). Also, the fit of the head/spindle to the main-shaft isn't precise. I've tried differential tightness on the clamp bolts to even it out, and it's helped a little, but there's still some wobble I can't seem to get rid of. Ideas? Did you guys have to balance the included blades much?

[Shaun Evans]

First start....

[Gravythe clown]

Looks good... went straight to smack flying the mechanics lol... What FBL/Motor/ESC did you go with?

As I was watching his video, I was thinking he’s going to need to add a scale vomit bag for his gunner. Lol

great job great, it sounded good.

Gravy

[sfcfury]

I got the mechanics up!

https://youtu.be/7Ix3VO7TJVg?si=VLZ3Ta_Qhhz-z05H

Looks good... went straight to smack flying the mechanics lol... What FBL/Motor/ESC did you go with?

[F106DeltaDart]

Dumb question, maybe, but how'd you get the FLIR off?

Honestly, I don't even remember. It was years ago. I think I may have used a hacksaw blade to cut the mounting shaft.

[Shaun Evans]

I got the mechanics up!