Official FMS 1400mm P-51D V8 Thread

[farmflyer]

Dewey I'm glad to hear you've got things on the right track. I'm hoping you have a great maiden and many uneventful flights.

[Dewey H Lee]

Yes I did that. After picking up the pieces I made sure I didn't fall off again. Snoots Sniper hopefully will maiden this weekend. After finally getting the retracts straightened out all seems to be falling into place and clear the way to get Ferouis Frankie together and up. Been bitting at the bit wanting to start it but have been making sure I had spare parts and all before even starting the build. BTW where can I get an antenna for Ferouis Frankie. When I received it from Weedsnagger it was not with the plane and is not listed in any of the spare parts for the plane as I have found. I've only checked motion rc though because there parts list seems to be more comprehensive than most sites.

[Grossman56]

Thanks Dewey, I hear you about the work!!
But hey, can you believe that here in Wyoming, usually we're buried in snow, today it's 62 at 4:00 PM sunny and no wind, hope it holds out for the weekend.
I found that flap settings made a huge difference as well as keeping the power up and using throttle to control descent. Once you got it, it's like riding a bike. Sometimes I still fall off and skin my knees though! LOL

Grossman56

[TiredIronGRB]

Is that the Bearcat? If so this is the wrong thread.

[Dewey H Lee]

Yes sir dkalwisky I was speaking about the 1700 Frankie. I had remembered from an earlier post that you answered to me about not liking it stock at all. That's the reason I've purchased the 360kv. Don't really care for prop mods. Seen a few fell and really damage and cause loss of plane's. Having a machinist background I don't trust tightened screws on plastic and I try my best to make sure to have everything balanced as perfect as I can get it to keep from getting vibration. I just can't see the prop MOD being very vibration resistant. Pretty close but not the way I like it. It's bad but I am a fanatic about vibration.
I want to thank-you again ov10 on your earlier post about the sequencer. Imagine having 2 brand new bad at one time. It can only happen to me. The new I put in is working great. Did have a little trouble at first but now it's fine. Had my tx set at -100%(tactic850) and had to back it down 1% and it hasn't missed a stroke. You are definitely right about coming in with power. I've had just one of those landings with my 60 size nitro mustang. It's a 60 size but the guy I bought it from had put an ASP91 in it and it really moves. I'm hoping the 1700 will land like it. You definitely can't glide the nitro in. I remembered sometime earlier about needing 100 amp esc for that motor and that was put on order today to round the MOD off.
Hey Dan I got you on the setting man. Been keeping up with your conversations with ov10 on landings. That's pretty much where I've got the flaps on the planes I've gotten out of the boxes so far. I can't by anymore until I get some put together. Still have the p40 and iron Ass in the boxes. Work has really killed the flying time this year. Just want to thank-you all you guys again for your great contributions to the the fourm and let you know that even when we're not commenting some of us are still reading. Near

[dkalwishky]

I bought the Great Planes Accuthrow Deflection Meter from Motion, I love it!

https://www.motionrc.com/products/great-planes-accuthrow-deflection-meter

[Grossman56]

I'm not sure which P-51 you are talking about with regards to power, I have the 1700mm Ferocious Frankie and out of the box it is under powered, so much so (in my opinion) I hated the plane and was ready to sell it at a loss then I ran across the prop mod, that made a big difference and I now like the plane. :)

The next time i order parts from RC (which should be today) I plan on getting the 5060 360kv motor and installing it and removing the prop mod. My best landings with it are to come in which a touch of power and as the main touch down give a little down elevator to keep the plane on the runway and then remove any remaining power. Trying to float it in with no power has not worked well (for my anyway).

No, not with a warbird, I keep about 1/3rd power on mine and then judge accordingly. Flap settings of 15 and 30 degrees really help as well.
Great example Charlie, looks like one of my landings before I caught on, thanks to you and the guys at Nefi. BTW, Charlie was the guy that recommended 15 and 30 degrees for flaps, and a little tool to help adjust them accurately, maybe he'll post the link to it. I got one and its the handiest thing I've bought this year.

Grossman56

[OV10]

I'm not sure which P-51 you are talking about with regards to power, I have the 1700mm Ferocious Frankie and out of the box it is under powered, so much so (in my opinion) I hated the plane and was ready to sell it at a loss then I ran across the prop mod, that made a big difference and I now like the plane. :)

The next time i order parts from RC (which should be today) I plan on getting the 5060 360kv motor and installing it and removing the prop mod. My best landings with it are to come in which a touch of power and as the main touch down give a little down elevator to keep the plane on the runway and then remove any remaining power. Trying to float it in with no power has not worked well (for my anyway).

DK,
That 360kV from the Pitts is the way to go versus a prop mod on the 1700 Frankie but make sure you bump up your ESC to a 100A.
And I can't say it enough to all that want to fly warbirds, trying to float in with no power will not work well.
Here's some real life proof ;)
https://www.rcgroups.com/forums/show...postcount=8695

Best regards,

[dkalwishky]

Before even starting on the 1700mm Ferouis Frankie I ordered the 5060 360kv motor. I'm trying to stay away from the prop MOD. My intentions with snoots sniper is to first fly it stock as Daryl suggested and then up grade to the 650 from the p40. Actually spoke to Farmflyer on the phone and he said the plane really needed more power badly.

I'm not sure which P-51 you are talking about with regards to power, I have the 1700mm Ferocious Frankie and out of the box it is under powered, so much so (in my opinion) I hated the plane and was ready to sell it at a loss then I ran across the prop mod, that made a big difference and I now like the plane. :)

The next time i order parts from RC (which should be today) I plan on getting the 5060 360kv motor and installing it and removing the prop mod. My best landings with it are to come in which a touch of power and as the main touch down give a little down elevator to keep the plane on the runway and then remove any remaining power. Trying to float it in with no power has not worked well (for my anyway).

[Dewey H Lee]

Thanks Dan. I'll do that. Never flew a foam p51 before and so I'm open to sound advice. Have a nitro version but it requires a good bit of throttle coming down and you better pray you have the motor tuned right or you will be gluying toothpicks back together. As soon as I get snoots sniper maidened I'll go ahead and get Ferouis Frankie together and hopefully up. It's more in comparison to my nitro plane. Before even starting on the 1700mm Ferouis Frankie I ordered the 5060 360kv motor. I'm trying to stay away from the prop MOD. My intentions with snoots sniper is to first fly it stock as Daryl suggested and then up grade to the 650 from the p40. Actually spoke to Farmflyer on the phone and he said the plane really needed more power badly. He was speaking from experience with his sons plane. I've been keeping up with your progression on your landings with your birds and I respect yours and the other guys advice. Thanks again so much.

[Grossman56]

Congrats Dewey, nothing like a happy outcome. As for the plane, they fly like a dream. Best advice I can give you is to make sure your flaps are at 15 degrees for take off and 30 degrees for landing. peel off altitude and come in at about 1/3rd throttle, establish a good descent rate to just above the runway, two or three feet, level wings and let her sink, a slight bump of nose up elevator and she'll settle in like a dream. Works like a charm with both my FMS P 51's and the FMS 40.

Grossman56

[xviper]

I'm so happy that it has finally worked and hope it will continue to work. I flew my P-51 a few times last week and it's just too good to have it benched with something so niggly.
I am currently have a similar problem with my Dynam Grand Cruiser's retracts. I'm fiddling with the servo travel % in both open and close limits on the TX. Sometimes it works and sometimes it doesn't. I feel your pain, however, the Grand Cruiser is not one of my top favorites that I fly so I'm not too broken up about it.

[Dewey H Lee]

We'll it looks like the problem with the retracts might be straightened out. Don't know for sure because I said that once before and after setting for a couple of weeks no joy. The original sequencer produced only the gear doors operating. The light green one done nothing at all. I ordered 2 this last time(a little gun shy)just to make sure I got at least hopefully a good one and it came the a clear wrapper with a green circuit board. When I put it in I was greeted with the doors closing and then the gear retracting. I had operated everything with a servo tester to get it to that position. It just seemed to be messed up in its mind. It just kept wanting to close the doors(of coarse at this time I had unhooked the rods) and operate the retracts. I kept going back to my tx adjusting things until finally I had remembered what Xviper had told me to try. On the 850 tactic you can only get 100% so the only option was to go down. It took 1% and it started to work perfectly. I'm dumbfounded. Thank-you so much Xviper. I then went back to ensure that the other sequencers were any good that I'd had in the plane before and they were still inoperative no matter where I adjusted my tx to. This has been a trip I don't want to travel again but a lesson well learned. I WANT TO THANK EVERYONE WHO HAS CONTRIBUTED AND HELP ME WITH THIS PROBLEM. After the doors wanting to close and then the retracts going up I was about to throw my hands up. To many new bad parts. Thanks again guys and we will see if it works tomorrow..

[Sky Wolf]

Same here; I have the V7 with the original motor, moved to the 650k motor from the P40. I was actually blown away by the difference in noticeable speed. As noted already, it wasn't so fast that I feared blowing the spinner and prop off, but the unlimited power/pull was amazingly noticeable.

[Dewey H Lee]

I hit the wrong thing before the picture.

[Dewey H Lee]

Hey Daryl I finally got in my order from motion. I was expecting it to take alot longer due to detours from the storm but it was as normal just 2 days. Great service. Had to come on when they came in and find out if you had any that had clear wrap on them. It's to late tonight and been a long day so I won't be trying it out tonight. Also I ordered an upgrade motor for Frankie. Man that is a big motor. I just can't get into the zip tie mode. There just seems to be to many variables there that can cause vibration and other issues. I'd rather just go the motor upgrade and try to keep things simple. I've seen a few 1700 mm birds go down on prop mods go down. We'll back to the 1450 snoots sniper. I hope the sequencer solves the problem. I can't wait to finally put it up. As you said earlier I intend to fly it stock and then go to the 650. I'll try and post a picture of the new sequencer but I sometimes have problems. Thanks for all the help to everyone.

[Grossman56]

I went the 580 kv's and the zip tie mod, albeit, not an extremely thick zip tie. Both the D model and the B model are excellent with this system, but I'm 5000 feet up in the mountains so the zip ties make up for that in my opinion. When I get the chance, I'll try converting one with a 650 and remove the zip ties. currently run an 85 A ESC (no pun intended!)

Grossman56

[wvrailfan]

I agree with the 650 motor on 4 cell assessment. I have two FMS Mustangs, a B and D, the 650 motor really woke them up, but it didn't take them to the extreme that they look unrealistic in the air or that I have to wonder if my prop assembly is going to explode. It is a straight forward upgrade that I think has proven itself now.

Jim

[wrongroad]

G'day FS,
I would suggest that you fly her as stock on her maiden flight so you can get a gauge of what comes next.
My V7 came with a 540. I then upgraded to the 580kv. I noticed a difference but not stunning. Then I upgraded to the 650kv out of the P-40. Again, I noticed a difference but not stunning. However, more than enough to justify the money spent.
The reason for not seeing a huge increase was the simple fact that I had used a 580 before going to the 650. So the jump was not as great as going from a 540 to the 650. Hence, I did not see the bigger performance gain in one go.
All flying has been done using 4S 3000 / 3300 mAh batteries and stock prop configuration.
Now if I had gone 540 to the 650 in one hit, I may have been awestruck.
I have three of the Mustangs [starting life as a V7, V7.5 & V8] and all have been upgraded to the 650 'standard'.
There is a difference between the motors and the 650 mod is worth it for about $45 Aus. It is a big jump from 540 to 650.
I did think about robbing the motor out of my Olympus to test it all first but I did not have any good 5 or 6S batteries. In fact I combined two 3S to fly the maiden fright [yes, fright] of the Olympus.
FS, you do not need to spend big or make too many mods to make an already very good model into a great model.
Go the 650 way but fly her as stock first.
Regards and respect
Daryl

[xviper]

OK << JUST GOT MY FMS 1450mm P-51's V8, ? zip tie mods, will you be able to see an increase in speed once it its donnan are there anymore mods available ???

Not quite sure I understand what you just typed but I'll take a guess.
The ziptie mod, if done with the proper thickness of ziptie will produce a noticeable (but not eye popping) increase in speed and "grunt". The better mod would be to install the motor from the FMS P-40B (latest version). However, don't do both mods. For a huge increase in performance, up the ESC to around 100A+ and put in the motor, prop, spinner from the FMS Olympus and fly it on 6 cells. For me, it was just a bit too scary fast and I went to the P-40B motor and back to 4s and stock prop.