Official RotorScale UH-1A Medic Green 450 Size Helicopter Discussion Thread

[F106DeltaDart]

Hi everyone. I have just signed up because I need some advice. In the sales advert, the recommended battery for this helicopter is stated as 4S 14.8v. 1600 - 2200mAh 30C but at the start of this forum, it seems to recommend a 6S 22.2v. 1100 - 1500 30C. Now I am not new to helicopters using engines but electrics are a dark art to me! I do have a couple of electric sports planes but followed the manufacturer's recommendations and have had no problems so far. Are either of these batteries compatible as they have 2 different voltages? Also, I am using a 4S 14.8v. 4250mAh 35C battery in one of my planes, so can I use it in this helicopter? Thank you.
Regards
Android

You’ll want to use a 4S 2200. The early versions were 6S, but the newer ESC in the current version is only rated to 4S. It flies great on the 4S power system anyway. I prefer it over the higher headspeed on 6S.

[Android]

Hi everyone. I have just signed up because I need some advice. In the sales advert, the recommended battery for this helicopter is stated as 4S 14.8v. 1600 - 2200mAh 30C but at the start of this forum, it seems to recommend a 6S 22.2v. 1100 - 1500 30C. Now I am not new to helicopters using engines but electrics are a dark art to me! I do have a couple of electric sports planes but followed the manufacturer's recommendations and have had no problems so far. Are either of these batteries compatible as they have 2 different voltages? Also, I am using a 4S 14.8v. 4250mAh 35C battery in one of my planes, so can I use it in this helicopter? Thank you.
Regards
Android

[JFandL]

Flew a helluva lot of 'dustoffs' (hot fire zone med-evac) in my beloved Huey which earned me a few more fruit cocktails on my chest (HM2 USN MACV-SOG II Corps Duc Lap 70-71)
Miss that distinctive 'whop whop' of the blade. After 50 years I can still tell a Huey from a Chinook or a LOH (Hughes 500 Light Observ Helo) flying overhead. Sometimes I miss those days flying fast and low over the canopy to avoid taking fire (still got me with some shrapnel from an AK on the ground).

I am seriously considering ordering this Huey so I have been reading the posts but have not come across any RC pilots who have commented on how sensitive the collective and rotor pitch controls are to fly for an advanced novice. I have flown 4 ch winged and 6 ch (dual rotor) so this would be my first venture into using a collective (other than my real-world crew training landing & auto-rotating). If one of you stick jockeys would be so kind as to describe this old geezer would be most grateful. Please include which transmitter you prefer so I don't make an expensive mistake.

From one old geezer to another. 1st thing is do a recon of your local area and see if there is some guys flying RC helicopters. If you find some they will be of great help to you. Look up RC AMA fields near you, that would be a good start( Most of the guys will be flying Fix wing but there is some RC helicopter guys in the mix). Right now this is not a good choice to jump into for you. The old saying more stick time needed to work into this aircraft. As far as Radio's ? I fly a Specktrum IX20. I've flown many systems over the years from Futabra to JR. Whatever radio you get make sure its has as many channels as you can afford. I fly Fix wing as well, some with 4 engines and they eat channels up fast. I have a BlackHawk that uses 10 channels for all the scale stuff(7 for flying)

Picture of the last UH1 500 size I built.

[F106DeltaDart]

Flew a helluva lot of 'dustoffs' (hot fire zone med-evac) in my beloved Huey which earned me a few more fruit cocktails on my chest (HM2 USN MACV-SOG II Corps Duc Lap 70-71)
Miss that distinctive 'whop whop' of the blade. After 50 years I can still tell a Huey from a Chinook or a LOH (Hughes 500 Light Observ Helo) flying overhead. Sometimes I miss those days flying fast and low over the canopy to avoid taking fire (still got me with some shrapnel from an AK on the ground).

I am seriously considering ordering this Huey so I have been reading the posts but have not come across any RC pilots who have commented on how sensitive the collective and rotor pitch controls are to fly for an advanced novice. I have flown 4 ch winged and 6 ch (dual rotor) so this would be my first venture into using a collective (other than my real-world crew training landing & auto-rotating). If one of you stick jockeys would be so kind as to describe this old geezer would be most grateful. Please include which transmitter you prefer so I don't make an expensive mistake.

Welcome and thank you for your service! This is not a good first collective pitch helicopter, and is a lot more complex to fly at set up than any coaxial helicopter. I would recommend looking at a Blade 230S for your first CP heli before even considering this model. After that, I'd recommend moving up to a pod and boom Trex 450 and getting comfortable with setup and flight controllers first. Hope this helps!

[NamMedic70-71]

Flew a helluva lot of 'dustoffs' (hot fire zone med-evac) in my beloved Huey which earned me a few more fruit cocktails on my chest (HM2 USN MACV-SOG II Corps Duc Lap 70-71)
Miss that distinctive 'whop whop' of the blade. After 50 years I can still tell a Huey from a Chinook or a LOH (Hughes 500 Light Observ Helo) flying overhead. Sometimes I miss those days flying fast and low over the canopy to avoid taking fire (still got me with some shrapnel from an AK on the ground).

I am seriously considering ordering this Huey so I have been reading the posts but have not come across any RC pilots who have commented on how sensitive the collective and rotor pitch controls are to fly for an advanced novice. I have flown 4 ch winged and 6 ch (dual rotor) so this would be my first venture into using a collective (other than my real-world crew training landing & auto-rotating). If one of you stick jockeys would be so kind as to describe this old geezer would be most grateful. Please include which transmitter you prefer so I don't make an expensive mistake.

[Knight stalker01]

Thanks very much buddy found it n saved them even though i saved them last time stupid phone i will savw the file to my tablet aswell👍👍

[CM_Aero]

Hi were can i find the files for the 3d prints for a 450size huey cant see them on here?? Thanks 🚁🚁👍👍

Try post 283 on page 15. There is a zip file posted with the files.

[Knight stalker01]

Hi were can i find the files for the 3d prints for a 450size huey cant see them on here?? Thanks 🚁🚁👍👍

[eawings]

Oue 450 Rotorscale has arrived. Please check on our website.

[Jeff Kraus]

The replacement head finally arrived today. I took the DFC head off and set up the swash for the new head. What a difference! The tarot head has no vibration and is rock solid. Going to fly one more test flight tomorrow and then re-install the fuse.

How did it work out for you?

[Jeff Kraus]

ETA on your RotorScale Heli's?

[Scott E]

Good day! I was wondering if there was an updated ETA for this aircraft yet. Especially with current world events, delays are understandable and I know you are all doing the best you can. Also, I've seen either 4 or 6 s recommended. What works best on this? Thanks so much, and happy flying!

[Jdial77]

just got my huey back together went with a vietnam era paint scheme

[Gravythe clown]

Finally got her flying sweet, but decided to sell her.
listed on RCgroups

https://www.rcgroups.com/forums/showthread.php?3795399-Uh-1a-450

Gravy

[RCFlyer51]

I guys. Been out of the net for a while moving from Washington State to Michigan. Finally settled and have been trying to get my Huey back in flight condition. I ordered and received a Garet head assembly and have been having a devil of a time getting it setup. I could really use some insight into what I am doing incorrectly. The head assembly came with a main shaft that is 118 mm long, with 107 mm distance between the two holes. The notch in the center area of the shaft is ~64 mm from one shaft end and ~54 mm from the other shaft end. I mounted the head on the end of the shaft that is farther away from the notched area on the shaft. I have seen earlier in this thread that the stock main shaft from MotionRC is 116 mm. I assume 2mm longer isn't going to be a large issue????

When I install the Garet head assembly I can not get negative pitch using the control rods included with the Garet assembly. I have centered and leveled the swash, calibrated the radio throws and centered the servos, set the servo limits. I consistently get excess positive pitch and little to no negative pitch. I have shortened the control rods between the swash and blade attachment points as much as possible and still can not get a balanced pitch setup. I even cut down some extra control rods in an attempt to get the pitch balanced. With the cut down rods I was able to get a more balanced pitch setup, but, even then I had a 2 to 3 degree difference in pitch range between the two main blades, and, the pitch range was only -4.5 to 23.

Perhaps I was sent the wrong assembly or I just don't know what I am doing............ Any help would be greatly appreciated.

Danny

[Gravythe clown]

Yeah it definitely helps with the fit into the fuse.
mom still getting tail bounce, so I’ll pull it out again and see what I can do to fix that. I might make my own pivot joint so I can use two straight rods like in my cobra and Apache use instead of golden rod.

I’ll up date later with how that goes.

everything is fixed and I’m finishing up the touch up paint now. Besides the missing window you can’t tell it was scene in a crash. I wish they would sell the window set. It don’t even come with a new canopy.

oh also added in 1.5 oz of lead to the front canopy to get it to CG even with the battery.

Gravy

[CM_Aero]

Gravy thats an interesting servo mount for the Tail. Ive been having issue of interference between the fuse and the servo - but that looks like a great way to fix the issue.

[Gravythe clown]

After my crash I decided to make some changes to my tail rotor drive setup. Fits better and seams to control better, smother. I’m waiting for some new blades and epoxy to dry on the fuse. Once the epoxy is dry really good I’ll sand and paint. Besides the missing lower left window, won’t be able to tell it crashed.

Gravy

[F106DeltaDart]

Thanks f106delta dart for that👍i will look at them pics on the push n pull cable 👍👍how do i get the stl files for the rocket launcher and mini guns and is scaled all ready for the 450size huey 👍👍thanks buddy

The files attached to the post that I linked should be correctly scaled already for the Huey.

[Knight stalker01]

Thanks f106delta dart for that👍i will look at them pics on the push n pull cable 👍👍how do i get the stl files for the rocket launcher and mini guns and is scaled all ready for the 450size huey 👍👍thanks buddy