HobbyKing.com New Products Flash Sale
Reply
Thread Tools
This thread is privately moderated by tking2097, who may elect to delete unwanted replies.
Old Feb 19, 2011, 01:05 AM
'Sky' King
tking2097's Avatar
Watauga, Texas
Joined Jul 2007
220 Posts
Discussion
U-2 with Retract, tailwheel, flaps and rudder mods!!

I have always had a weakness for the U-2 Dragon Lady, and once I saw Phase 3 U-2 flight video, I knew I had to have one in my hangar! There was just one problem, the Phase 3 version is a belly-lander. After doing a bit of homework, I developed a Strut kit with double axles to mount in an E-Flite 10 - 15 nose retract, or the NitroPlanes retract for the Phase 3 U-2 kit.

My completed U-2 with the Strut mod and added tailwheel (3/4" Sullivan from LHS) can be seen in the first picture.

In the second picture, you can see the kit parts, the assembled strut assembly, and finally the completed strut with wheels. The strut is made from T-6061 aluminum, and all hardware is stainless steel. As you can see, the kit is simple and easy to assemble!

Wheels - The kit provides for the use of 1.5" or 1.75" sized thin wheels. Due to the rough surface of the field where I typically fly, I chose to install two 1.75" wheels (Dave Brown Products Lite Flite Wheels). Wheels too large to fit the axles appear too large for the U-2 and will not fit in the space inside the fuselage.

Note that the 2 screws used to form the double wheel axles were test fitted with the intended wheels, then assembled using Blue Thread-lock compound. The use of Blue thread-lock provides for a secure capture of the screws, yet allows the screws to be removed at a later time if required.
Since space inside the Phase 3 U-2 is limited, a bit of ingenuity to get everything to fit. For example, I chose to mount the ESC on the bottom of the fuselage, just ahead of the fan, in order to free up space for the retract, retract servo, and an optional rudder servo.

I made up a couple of extra retract kits while I was at it. Feel free to contact me about obtaining one for your U-2 project if you like.

The U-2 with added flaps, rudder and retractable nose gear is ready! All that is needed now is some good weather for a maiden flight plan!!
tking2097 is offline Find More Posts by tking2097
Last edited by tking2097; Feb 24, 2011 at 10:30 AM. Reason: edit caption.
Reply With Quote
Sign up now
to remove ads between posts
Old Feb 01, 2012, 12:28 PM
Apprentice 15e
United States, PA, Murrysville
Joined Nov 2011
79 Posts
Just ordered Phase-3 U2

I just barely made it under the wire at hobby people's Jan sale... the U2's were on big time sale.. RTF $144, and I-bind for $124. I called them to check if they will have RTF in stock, by the time I was on the phone, the price for I-bind went from $124 to original $199!! But the person at Hobby People, still gave me for $124!!

I hear they're going to discontinue RTF version of Phase-3 U2!

BTW, I am already considering variety of mods, as you have done. And your page provides exact info, I need!

Thanks for taking time to post this.
Apprentice15e is offline Find More Posts by Apprentice15e
Reply With Quote
Old May 22, 2012, 05:01 PM
Registered User
Alpha10's Avatar
United States, IL, Chicago
Joined Aug 2011
177 Posts
I'd love to get more info on your rudder mod. It would be great to have on this plane for more scale turns/landings.
Alpha10 is offline Find More Posts by Alpha10
Reply With Quote
Old May 31, 2012, 08:14 PM
Registered User
Joined May 2012
1 Posts
U-2 on its Way

Hello,

I was looking for another EDF glider to replace my Syncro that is now 75 feet up in a pine tree :-( I have constructed a potato cannon and will try to get some of the electronics back, enough about that! Do you have a list of items/material/parts that you used to make the retracts, flaps and rudder for the U-2. I would like to do the same with mine when I get it in a few days. If you have items for sale I might go that route but like to tinker.

I also do only electric warbirds and gliders. Have/had a Great Planes Syncro EDF, a Electric Senorita, working on a Royal P-38 kit that will have 1500 w motors and gathering material to make my version of a B-52.

Would like to hear about the parts. Also, what ESC and batteries have you used in your U-2?

Regards,

Barry
Bigbear001 is offline Find More Posts by Bigbear001
Reply With Quote
Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Video Phase 3 U-2 Retract and Flaps Robert Stinson Electric Plane Talk 38 Dec 13, 2012 10:39 PM
Discussion Diamond D47's for ailerons, flaps, elevator and rudder? hog2soar Hand Launch 21 Sep 21, 2010 09:20 PM
Discussion Plantraco micro-racer with flaps and other mods jcerne Scratchbuilt Indoor and Micro Models 0 Aug 31, 2008 04:22 PM
Discussion Air Hogs "U-Build-It" Light Review With Mods *Updated with Pictures* Torx Micro Ready-to-Fly 16 Jul 10, 2008 11:58 PM