Park Flyers & Backyard Flyers Discuss RC Parkflyers and rc backyard flyers in this forum

R/C herr engineering Bonanza completed

Reply
Old 09-15-2011, 09:23 AM
  #1
servohead107
Thread Starter
 
Join Date: Sep 2009
Location: Portland, ME
Posts: 19
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default R/C herr engineering Bonanza completed

I thought I would let you guys in on my recently completed Herr engineering Beechcraft bonanza build. Designed for rubber free flight I converted it to brushless electric and 4 channel R/C. The motor and speed control,battery, servos, and receiver are from Hobbyking. I am thrilled with the outcome of this laborous buildup. It took more time than I thought it would. Engineering a weak rubber powered airplane to stand up to the higher weights, loads, and forces of r/c was a task to say the least. All up cost was less than 100 dollars though. The plane flys like a dream, very very stable and smooth flying charactaristics. Not very sporty but looks very scale in the air. I've flown it probably 20 times now without a hitch. If any of you are planning on taking on this very build just know the CG on the plans is set about an inch too far aft. I nearly crashed the plane on the first flight due to tailheaviness. Please see my Gallery to see all the images of the process! Let me know what you think!!
Attached Thumbnails
Click image for larger version

Name:	Hf10338.jpg
Views:	87
Size:	169.0 KB
ID:	1662634   Click image for larger version

Name:	Dy79734.jpg
Views:	91
Size:	150.2 KB
ID:	1662635   Click image for larger version

Name:	Yd82496.jpg
Views:	106
Size:	87.5 KB
ID:	1662636   Click image for larger version

Name:	Oh12893.jpg
Views:	107
Size:	66.9 KB
ID:	1662637   Click image for larger version

Name:	Yj65664.jpg
Views:	140
Size:	54.5 KB
ID:	1662638   Click image for larger version

Name:	Xo91090.jpg
Views:	109
Size:	82.2 KB
ID:	1662639   Click image for larger version

Name:	Df72681.jpg
Views:	86
Size:	51.8 KB
ID:	1662640   Click image for larger version

Name:	Qp51757.jpg
Views:	140
Size:	45.5 KB
ID:	1662641  

Click image for larger version

Name:	Ts21851.jpg
Views:	98
Size:	42.6 KB
ID:	1662642   Click image for larger version

Name:	Tg41120.jpg
Views:	98
Size:	43.9 KB
ID:	1662643  
servohead107 is offline  
Reply With Quote
Old 09-16-2011, 08:32 AM
  #2
guapoman2000
 
guapoman2000's Avatar
 
Join Date: Nov 2003
Location: Orlando, FL
Posts: 1,643
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Wow!

I got a HERR ENGINEERING J3 Cub of 35 inch wing span made for RC and it is still in the box and you have inspired me to get it out!

What you did is something long past by many who do not know the self satisfying feeling of building it yourself and seeing your own labor of Love fly afterwards!

Congrats and thank you for sharing.

Love your picture with the little one!

Regards,
Carlos[8D]
guapoman2000 is offline  
Reply With Quote
Old 09-20-2011, 09:07 AM
  #3
servohead107
Thread Starter
 
Join Date: Sep 2009
Location: Portland, ME
Posts: 19
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

glad to see my project was an encouragement! Get that Cub going! You know how your car seems to drive better after you just washed it? Putting all the work into this little plane was like that, I swear it flys so well its like it knew how much work ittook to complete. Well, it was a lot of work for a father of 2 - put it that way.

servohead107 is offline  
Reply With Quote
Old 10-24-2011, 09:14 AM
  #4
guitardude
 
Join Date: Aug 2006
Location: East Peoria, IL
Posts: 70
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Thanks for the post, I just started a Herr Engineering - Starlite, have a post here on RCU about the build (see link below). Going to try to add alerions and remove some of the diheadral in the wings to maket it a little more fun to fly. I"ve opted to cover my Starlite with the "Solite Solar film" Radical RC sells since I had some.

www.rcuniverse.com/forum/m_10729711/anchors_10729711/mpage_1/key_/anchor/tm.htm#10729711

My next challenge may be building a Gullows Piper Cub I purchased and converting it to RC. That should be interesting if I do it.

Nice build!

guitardude is offline  
Reply With Quote
Old 10-25-2011, 04:47 AM
  #5
onesixright
 
Join Date: Oct 2011
Location: Munich, GERMANY
Posts: 1
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Hi,
I've started to build the HERR Bonanza about a year ago. I couldn't find any threads about this project in the past - so I'm happy to read about this flying bonanza.

It looks great and I could already get some new ideas how to realize the engine mount etc. - thanks!
I've got some questions left:

-any particular reason you didn't build the V-tail?
-What is the total weight?
-what kind of batteries do you use?
-which engine and prop do you use?
- is the front gear a fixed one (not coupled with the rudder?

Sorry - so many questions...

Thanks a lot in advance.
regards
Markus
onesixright is offline  
Reply With Quote
Old 02-27-2012, 08:55 AM
  #6
servohead107
Thread Starter
 
Join Date: Sep 2009
Location: Portland, ME
Posts: 19
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Hi there!
Sorry for the delay! I've recently had some people ask me about the model, so I'll answer your questions also. The all up weight is Ithink just below a pound. battery is a lipo 7.4v 1000 mah. Engine is a brushless outrunner from Hobbyking, AX 1806N 2500kv Brushless Micro Motor. Servos are Turnigy 1440A Servo 4.4g/0.8kg/.10sec (V2). The front gear is actually steerable, and coupled with therudder,as you will see the hole in the firewall for the steering shaft. I used the same bit of carbon fibre tubing to run the nose gear rod through. Took some head scratching to figure it all out.

The plane flys like an absolute dream (with the center of gravity where it should be). Iam literally sad when i need to stop flying to recharge. Because it was such a labor of love I have not chosen to fly in much wind, so I don't know how dauntless it actually is in the air. The all up weight is no issue, the motor pulls it just fine and slow speed capabilities show no tendancy to tip stall or otherwise be unstable.

Be encouraged! I'll take more pictures if you like of the final bird! Get to it markus!!

steve
servohead107 is offline  
Reply With Quote
Old 02-27-2012, 01:43 PM
  #7
insalacosm
 
insalacosm's Avatar
 
Join Date: Apr 2005
Location: Arlington, VA
Posts: 327
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Steve - Beuatiful work! I love flying but building is the most satisfying part of this hobby in my mind, especially when you are challenged with design mods and such. Nice job!
Steve
insalacosm is offline  
Reply With Quote
Old 03-22-2012, 04:48 PM
  #8
servohead107
Thread Starter
 
Join Date: Sep 2009
Location: Portland, ME
Posts: 19
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Here's a video link - actually taken today.  

http://vimeo.com/m/39006431

The first flight this year for the bonanza
servohead107 is offline  
Reply With Quote
Old 11-16-2012, 06:11 AM
  #9
mike526mp
 
Join Date: Jul 2008
Location: The Villages, FL
Posts: 85
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

really cool!
mike526mp is offline  
Reply With Quote
Old 11-20-2012, 01:56 PM
  #10
dmbaerry
 
dmbaerry's Avatar
 
Join Date: Apr 2012
Location: BurlingtonNC
Posts: 137
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Very Nice
dmbaerry is offline  
Reply With Quote
Old 02-14-2013, 05:42 PM
  #11
helichuck
 
Join Date: Jan 2002
Location: Moundsville, WV
Posts: 28
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Can you tell us if you beefed up the construction any? I have a GEE BEE Y to build and convert. I believe that it will use the same motor and electronics that you used here.

Chuck
helichuck is offline  
Reply With Quote
Old 02-14-2013, 06:16 PM
  #12
servohead107
Thread Starter
 
Join Date: Sep 2009
Location: Portland, ME
Posts: 19
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

Yes the construction is beefed up as you say.  Think of it like wolverine.  That's what I did to the airframe.  The upper and lower main wing spars have been painstakingly webbed with 1/16" balsa sheeting from root to wingtip.  Also there is a 10" or so 1/4 carbon fibre tube at the wing root. It is extremely strong and there are no signs of weakness flying it.  The landing gear mounts have been substantially strengthened with ply wood.  The fuselage has reinforcement from about the CG forward, using a smaller diameter Carbon fibre tubing also.  This worked out fantastically for strength, I tried to engineer it so the forces from the nose gear would not break the fuselage.  Wolverine.  Think balsa construction but when you look at the bones there is a sovereign structure of near unbreakable backbones.  The tail feathers have extra wood but nothing special.  Some diagonal reinforcement is all.  Overall the work was extensive to reinforce sufficiently but the payoff is a work of art.  I wish you the best of luck in your endeavor!
servohead107 is offline  
Reply With Quote
Old 02-15-2013, 03:57 AM
  #13
servohead107
Thread Starter
 
Join Date: Sep 2009
Location: Portland, ME
Posts: 19
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: R/C herr engineering Bonanza completed

To answer two other questions here also:  I designed my own straight tail as I wanted simplicity of design.  I simply trust straight tails more than the Vtails.  I have seen/heard of scary anomalies with Vtails real life and model scale.  So, I knew I could trust the straight tail.  I took a picture of a bonanza online and used the outline of the rudder/elevator to design them.  It was not overly hard.  Came together quite well.  Also, as for the nose gear it is steerable with the rudder.  This was tricky to engineer myself with no prefabricated parts.  I used a steering arm and passed the gear rod through a hollow piece of the carbon fibre tube for its mount.  It is solidly epoxied in place.  Steering is razor accurate in function.
   
servohead107 is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 09:04 AM.