The RC Geek Blog

By: Chris Wolfe

E-flite's 850mm Pitts, the Knife Edge Beast!

As you may recall me mentioning in my UMX Pitts review, that little Pitts just flies absolutely epicly! Well, drooling over E-Flite's 850mm Pitts Biplane I couldn't hold off any longer and I ordered one. I knew that if it flew anything like the UMX, it would be an incredible little airplane! Well, the good news is it shares much of the magic flying pretty darn close to the UMX...knife edge passes FTW!

The pitts is such an iconic aerobatic aircraft design that's unmistakable and this E-Flite airplane captures it perfectly. Plus having flown the UMX one, it's really fostered a love for the Pitts. It's such a great looking biplane design.

AIRCRAFT ASSEMBLY

Assembly of the E-flite Pitts I found pretty enjoyable. Taking the airplane out of the box, one thing became apparent to me pretty quickly and that was that the finish on the airplane was incredible! As I inspected the parts, it really was hard to tell that  this was in fact a foam airplane. It was really impressive and is without a doubt the smoothest EPO foam airplane I've seen to date!


In terms of the assembly, I found it pretty straight forward with no major surprises. It starts by placing the landing gear on the fuselage which are a nice aluminum type. They are a little soft though and do bend on less than perfect landings...don't ask how I know… From there the horizontal tail is glued on which is quick and easy. I do recommend test fitting the tail first and then using a medium or slower setting CA so you don't run into problems or have to rush. The assembly is then wrapped up by installing the lower wing, pinning the wing struts in place and then adding the top wing and pinning the wing struts into the top wing. From there, the upper and lower ailerons are connected together with the supplied connecting rods. The wings are held on with cotter pins which is interesting, but certainly works well enough. It is worth mentioning that the cotter pin receiver that holds the lower wing in place can be screwed in or out to tighten or loosen up the wing fit if you find it’s not to your liking.

With the airplane completed, you're awarded with a beautiful recreation of the iconic pitts airframe. I'll be honest, the finish and smoothness of the foam is unreal. It legitimately is difficult to tell that it's a foam airplane it's that smooth. One thing to note is that there are some carbon rods supplied for optional flying wires which I would have liked to have used, but that didn't quite work out as the receivers shown in the instructions didn't seem to make it into the final production design, so there didn't seem to be an obvious place to put them. Kind of a bummer, but they're only for looks anyhow.

AIRCRAFT SETUP & CG

Setting up the airplane was pretty straight forward. Being a biplane, there's really only elevator, aileron, and rudder to setup. The rates in the manual are plenty sufficient and I'm actually flying the airplane with the recommended high rate rudder and elevator and then low rate ailerons. It can be touchy on the ailerons depending on how you set it up, so be aware of that. The Bind N Fly airplane does have SAFE, so, be aware of the two different bind procedures whether you want that on or off (see my discussion on SAFE here). This is an aerobatic airplane, so flying with SAFE seems to kind of defeat the purpose in my mind a bit, but having it on a switch, it can help you get out of trouble if that happens. In terms of throws, here's what I'm using:


  • Elevator - 19mm up and down with 15% expo
  • Aileron - 12mm up and down with 15% expo
  • Rudder - 22mm left and right with 15% expo


For the CG, I'm flying the airplane per the manual at about 86mm as measured from the top wing leading edge root aft. Interestingly this is right at about where the wing pins are, so basically you have a built in CG fixture for you. The airplane is level when I pick it up with my finger tips at this location and it feels good in the air. It's nimble but still statically stable to avoid getting into too much trouble. I'm using a 3s Roaring Top 35c 2200 mah pack and I find that this provides plenty of power. There's a removable tray for the battery and I set the battery at the rear most location on it. Personally, I really like the power of the 3s battery, but you can go up to 4s if you want and I can imagine it would have insane power! If you're wanting to 3d with the airplane, that would be the way to go.

FLYING THE E-FLITE 850mm PITTS

In terms of flying, I've really been enjoying this little airplane. It took a couple flights to get things tuned, but after that, the airplane just locked in super solid and flies great. IT's extremely nimble and aerobatic, but at the same time cruises around easily and looks great doing it. I'm not the greatest aerobatic pilot, but I had a blast doing snap rolls, knife edges and anything else I could think of to try. The airplane has fantastic scale like power on 3s which I was really happy with. It'll do big scale vertical maneuvers and nice crisp rolls easily enough and that knife edge is killer. For takeoff, I recommend bringing the power up rapidly to avoid ground looping. IT's a pitts which means a narrow gear track, so applying the power quickly will help get the tail up quicker. The most difficulty I did have initially was in sorting out the landings. If you come in flat like a typical taildragger approach for a two wheel touch down, you will end up hot in the flare. I bent the gear a couple times finding this out. I discovered that the airplane really wants to land 3 point with what is similar to a jet approach. I set the aircraft to a nose up attitude and then control the descent with the power. This really slows the airplane down and then avoids those hot touchdowns that inevitably get you hopping down the runway. Once I sorted that out, it really made things much more user friendly on landings. The airplane will really slow down well if you let it and are comfortable with that.

Below is a full flight video of the airplane in action. This is the airplane bone stock on a 3s 2200 pack. I'm sorry to say, I've not flown the airplane on 4 cells, but in my mind for my style of flying, I really don't find it necessary. Plus, I was kind of avoiding having to purchase more batteries…

FINAL THOUGHTS

There we have the E-flite 850mm Pitts for you. What a gorgeous little model that flies awesome. This thing is all about aerobatics and it will perform anything you throw at it, so most definitely have some fun with it. You know, the little UMX pitts really spawned a love for this airplane and this e-flite pitts just makes that love grow even more. It's such a cool looking airplane that is so nimble in the air that knife edges like a beast and I've been having a blast with it. Having an aerobatic airplane like this in the hangar is a much welcomed change for me since I'm usually flying warbirds or jets. I'm not the most proficient aerobatic pilot, so this'll give me a chance to work on those skills more. Until next time, I'll see you at the field!

The RC Geek Blog is your place to learn about all aspects of the RC hobby. Learn to build, design, drive or fly that RC project you’ve always wanted to build, but have been intimidated to try. This blog is here to help you on your journey and provide tips and tricks as you go! My hope is to inspire builders both experienced and new! So, welcome, please look around, it’s an exciting beginning!  I’m currently documenting my latest competition scale RC jet build, a Mark Frankel F4D Skyray, along with some other fun tips and videos. If you can’t find what you’re looking for on this front page, click on any of the categories to the right and it will show just posts related to those categories. Please feel free to add comments and/or contact me directly if you have questions, I’m here to help! And don’t forget to check out my YouTube Channel, I post new videos every week!

Subscribe To Our Blog Now

By Chris Wolfe 19 Sep, 2023
The B-58 Hustler Saga - From Triumph to Tragedy
By Chris Wolfe 13 Mar, 2023
Preparing for Battle: The ULTIMATE Guide to Scale Documentation Maybe you've heard about RC Scale Aircraft competitions, but the thought it sounded intimidating, or the process of it all seemed daunting and discouraging. Well, fear not! I am here to encourage you and dispel any myths you may have heard if any. Scale competition is a fun and challenging segment of the hobby that will undoubtedly make you a better pilot! So, in light of this, I've started a new "Preparing for Battle" live series and in my first episode, "Preparing for Battle: The ULTIMATE Guide to Scale Documentation," we talk about the AMA Scale Nats with special guest Joe Vermilion from Balsa USA and peel back the layers of scale competition and provide information on what it's all about! As an experienced RC Scale Aircraft competitor and two time US Scale Masters National Champion, my hope is to share whatever knowledge and practical advice I can for newcomers and seasoned competitors alike.
By Chris Wolfe 14 Feb, 2023
Are You Ready to Take Your RC Flying to the Next Level?? Then you’re in luck, because we’re giving away an FMS 1400mm F4U Corsair and an FMS 1100mm PC-21 ! But first, let's address the elephant in the room...it's been quite a while since my last blog post. With the move to TN and everything going on trying to get The RC Geek up and running full time, it's been difficult to sit down and set aside time to write. My goal is to change that going forward, so here's hoping! (check the vid below for even more details about everything mentioned here!)
By Chris Wolfe 25 Jan, 2022
Flight of the Flir Cat…The Sequel!! I tell you what, it has been quite the journey getting here! As a project, this Freewing F-14 Tomcat refinish took much longer than I had originally planned based on all of the other distractions that have come through the shop, but I'm so happy with how this model turned out in the end. It did take a few flights to get tuned and I have made a few small modifications in the process since our last installment, but otherwise I'm happy to report that the Tomcat is flying quite well. The F-14 Tomcat has such a great look and presence in the air, you just can't beat it!
By Chris 10 Jan, 2022
10 channels of power…and 1 receiver to rule them all! I personally love having the option for more channels, especially when building my own scale aircraft. While not always necessary, having channel options available is almost always helpful and it opens up opportunities to add scale functions and/or customize the controls more to your liking. And that's not to mention having individual servo setup across the same functions. So, I was excited to finally see the AR103060T and AR10100T 10 channel receivers released from Spektrum. It opens of channel options in a lighter weight package while also supports all of their new technology. Having been flying the NX10 for some time it is nice to finally be able to utilize all of those 10 radio channels.
By Chris 10 Jan, 2022
Good times and Warbird Flying are back! Needless to say, the last year and a half plus has been hard on all of us. With so many of our normal routines and activities disrupted, it has only brought that many more challenges it seems. This hobby is not just about the airplanes and flying, it is about the friends and comradery that can be enjoyed together with others as well. So, when the Scale Squadron's Warbirds & Classics came up again this year after being cancelled in 2020, I was beyond excited to go; it had been almost 2 years since the last event I went to!
By Chris 24 Nov, 2021
Refinish a Foam Jet Ep 4 – Freewing F-14 Tomcat Low-Viz Navy Weathering How low can you go?…a little low-viz Tomcat weathering. Finishing up the refinish work on the Freewing F-14 Tomcat, it’s time to apply some characteristic low-viz Navy weathering. The Flir Cat paint scheme is from the mid 90’s at a time when the Tomcats in service were painted primarily in Dark Ghost Grey (FS36320) with variations thereof. They were high maintenance workhorses at this time and the aircraft got extremely dirty during operation. This opens up lots of opportunities to apply different weathering techniques on the airplane to simulate those years of service on the carrier.
By Chris 24 Nov, 2021
Refinish a Foam Jet Ep 3 – Freewing F-14 Tomcat Paint, Markings, & Panel Lines
By Chris 27 Sep, 2021
Refinish A Foam Jet Ep 2 - Freewing F-14 Tomcat Cockpit 3D Printing, Painting and Moving Pilots
By Chris 27 Sep, 2021
Fill…sand…poly…sand…primer…sand…aaaannnnddd repeat… You've probably figured out by now, I have many favorite aircraft. ;) However, if I was to put together my top 5 favorite aircraft of all time, the F-14 Tomcat would probably be at or near the top of that list. The airplane was one of brute force, but packaged in an elegant and distinct looking airframe that truly personified its name, Tomcat. And that's not to mention, it was an extremely capable fighter that filled many roles through the years that operated from the early/mid 70's into the mid 2000s.
More Posts
Share by: