Welcome to The FlyingGiants! - please login or click this bar to join our community...

 

Welcome to The FlyingGiants Community! We're all about fun, and inside you'll find the greatest, friendliest, and most helpful group of people around! If this is your first time visiting, please check out site, and click here to sign up! We hope to see you soon!!

Go Back   FlyingGiants > Technology > What's Hot
Forgot your password? Create a new account


Reply
 
Thread Tools
Old 09-23-2009, 08:41 PM   #1
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Bill Hempel 100cc Yak-55M?????

Just maybe!
Mr. Hempel has decided to see if there is a market for smaller versions of the Yak-55M. He has prototypes for both the 50cc and 100cc. I was lucky enough to be asked to give one a try and I chose the 100cc. To me, it is the perfect size for all types of flying.
A few quick specs:
101" wingspan
approx. 1850 squares
92" length, back of rudder to front of cowl
15 pounds as you see it below - basically less radio gear, powerplant, tank, and wheels.
I've built a few 100cc planes and all the equipment added to the airframe usually comes out to about 10-12 pounds. So it looks like this will be a 25-27 pound plane
Attached Thumbnails
  • Click image for larger version

Name:	yak55ltside.jpg
Views:	1134
Size:	67.8 KB
ID:	211987 67.8 KB · Views: 1134

  • Click image for larger version

Name:	yak55rtside.jpg
Views:	1556
Size:	65.8 KB
ID:	211988 65.8 KB · Views: 1556

__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Old 09-23-2009, 08:46 PM   #2
louu
go fast, dont crash.
 
louu's Avatar
 
Join Date: Oct 2008
Location: south dirty jersey
Posts: 1,942
Default Re: Bill Hempel 100cc Yak-55M?????

WOW, i always wondered if a plane like this did good knife edge and inverted harriers like a regular yak. the lack of fuse behind the bubble worries me.
__________________
Your 2010 SNAP-A-SAURUS CHAMPION!!!
louu is offline   Reply With Quote
Old 09-23-2009, 08:47 PM   #3
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

A little more info.
This is true, "no glue required" from what I can see - all control surfaces are the pocket-hinge type, which means no glue and, more importantly, no hinge gap sealing!
Oh, and check out the throw! I didn't get a pic of the aileron but it's about 90 degrees
Attached Thumbnails
  • Click image for larger version

Name:	yak55rudder.jpg
Views:	814
Size:	62.5 KB
ID:	211989 62.5 KB · Views: 814

  • Click image for larger version

Name:	yak55stab.jpg
Views:	853
Size:	71.4 KB
ID:	211990 71.4 KB · Views: 853

__________________
Gmoney and Smarks are spooners

Last edited by bodywerks; 09-23-2009 at 08:58 PM.
bodywerks is offline   Reply With Quote
Old 09-23-2009, 08:51 PM   #4
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

Quote: Originally Posted by louu
View Post
WOW, i always wondered if a plane like this did good knife edge and inverted harriers like a regular yak. the lack of fuse behind the bubble worries me.
I understand your concern, but at the European XFC(EXFC), 21 out of some 30 planes were Yak55 designs, so I would think that it is of little concern.
Also, the roundness of the entire fuselage and lack of a tall rear deck can actually improve the way the plane rolls and the effectiveness of the rudder response.
__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Old 09-23-2009, 08:57 PM   #5
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

The cowl has a ring in it, with a tongue-and-groove setup to hold the bottom in and three screws(that will be hidden by the hatch) to hold the top in. Pretty sleek. Also worth noting, all the cooling louvers are already cut out - talk about saving a few hours of my time!
Attached Thumbnails
  • Click image for larger version

Name:	yak55cowlring.jpg
Views:	771
Size:	54.1 KB
ID:	211991 54.1 KB · Views: 771

  • Click image for larger version

Name:	yak55enginebox.jpg
Views:	775
Size:	64.6 KB
ID:	211992 64.6 KB · Views: 775

  • Click image for larger version

Name:	yak55cowlfront.jpg
Views:	801
Size:	77.8 KB
ID:	211993 77.8 KB · Views: 801

__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Old 09-23-2009, 09:02 PM   #6
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

The wings are recessed in the fuse of course, and it came with carbon wing and stab tubes
Attached Thumbnails
  • Click image for larger version

Name:	yak55wingpocket.jpg
Views:	650
Size:	71.3 KB
ID:	211997 71.3 KB · Views: 650

__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Old 09-23-2009, 09:04 PM   #7
3dAndrew
Livin it up like a kid!
 
3dAndrew's Avatar
 
Join Date: Aug 2007
Location: NY, but wishing i was still in FL
Age: 20
Posts: 1,582
Default Re: Bill Hempel 100cc Yak-55M?????

Keep it coming! Looks good so far! Build thread please........... good luck!
3dAndrew is offline   Reply With Quote
Old 09-23-2009, 09:06 PM   #8
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

Last pics for now:
The inside of the fuse is plenty roomy and the fuse seems very well constructed - and light. There are no provisions for a tail-mounted rudder servo but there is plenty of meat back there that I just might do it if the CG allows. This is a pretty long tail moment so it may not be an option.
Attached Thumbnails
  • Click image for larger version

Name:	yak55fuse.jpg
Views:	913
Size:	60.7 KB
ID:	211998 60.7 KB · Views: 913

__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Old 09-23-2009, 09:11 PM   #9
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

Quote: Originally Posted by 3dAndrew
View Post
Keep it coming! Looks good so far! Build thread please........... good luck!
I do plan to keep up with the build, but this opportunity came as a bit of a surprise to me but the Yak-55M design has grown on me and I never had the means to acquire the larger designs. This 100cc is the perfect size for me so I couldn't resist.
Money is obviously tight and I have the Tucson Shootout just around the corner to focus on so it may be a slow process but I will do my best. Maybe I will do well enough to win the engine I need(DA-100L is the plan)!
__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Old 09-23-2009, 09:12 PM   #10
ericb
Team WTFO
 
ericb's Avatar
 
Join Date: Mar 2006
Location: USA, SD, Worthing
Posts: 8,889
Default Re: Bill Hempel 100cc Yak-55M?????

Are the wings built up, or sheeted foam?
__________________
www.bandegraphix.com

https://www.google.com/#q=terryscust...+scratch+build<My next plane. ericb sent you.
ericb is offline   Reply With Quote
Old 09-23-2009, 09:15 PM   #11
storklappe
Doo It! Doo It!
 
Join Date: Jan 2006
Location: USA
Posts: 256
Default Re: Bill Hempel 100cc Yak-55M?????

I like it! I already have two 100cc planes completed that I have not flown yet (long story). Bodywerks, if you like how it flies I will have a third.
storklappe is offline   Reply With Quote
Old 09-23-2009, 09:29 PM   #12
Show871
Bad-ass Super Contributor!
 
Show871's Avatar
 
Join Date: Oct 2007
Posts: 1,476
Default Re: Bill Hempel 100cc Yak-55M?????

Dang the quality of the tail section hinging, and covering looks awesome!
__________________
Monster Army Renthal Spy Nofear MX Dunlop
http://www.monsterarmy.com/members/show871/

TourPlay Golf Greens
http://tourplaygolf.com
Show871 is online now   Reply With Quote
Old 09-23-2009, 09:41 PM   #13
mbacosa
Bad-ass Super Contributor!
 
mbacosa's Avatar
 
Join Date: May 2008
Location: United States, AZ, Scottsdale
Posts: 1,648
Default Re: Bill Hempel 100cc Yak-55M?????

That thing looks sweet. That 55 design is growing on me big time. It looks like a high quality kit.

Quote: Originally Posted by bodywerks
View Post
I do plan to keep up with the build, but this opportunity came as a bit of a surprise to me but the Yak-55M design has grown on me and I never had the means to acquire the larger designs. This 100cc is the perfect size for me so I couldn't resist.
Money is obviously tight and I have the Tucson Shootout just around the corner to focus on so it may be a slow process but I will do my best. Maybe I will do well enough to win the engine I need(DA-100L is the plan)!
mbacosa is offline   Reply With Quote
Old 09-23-2009, 09:57 PM   #14
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

Quote: Originally Posted by ericb
View Post
Are the wings built up, or sheeted foam?
Good question - they are built-up, and light!
__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Old 09-23-2009, 09:58 PM   #15
bodywerks
Bad-ass Super Contributor!
 
bodywerks's Avatar
 
Join Date: Jan 2006
Location: Tucson
Age: 39
Posts: 5,273
Default Re: Bill Hempel 100cc Yak-55M?????

Quote: Originally Posted by storklappe
View Post
I like it! I already have two 100cc planes completed that I have not flown yet (long story). Bodywerks, if you like how it flies I will have a third.
This is a pre-production prototype so some things might change if he does decide to market them, but I would think very little. It is just a smaller version of his 44% Yak and I can tell you that it flies awesome.
__________________
Gmoney and Smarks are spooners
bodywerks is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dietrich Aircraft has a 50cc YAK 55M!!! SleepyC What's Hot 17 02-10-2010 08:27 AM
Pilot RC Yak 100cc - Servo sizes? flyinandy Workshop Skills 2 08-22-2009 10:33 AM
Yak 55M Krill -Another build thread 3Dbuster Build Threads 48 03-23-2009 07:44 PM
aeroworks 100cc yak davidcaymus Airframes and Kits 3 06-13-2007 06:45 PM
New 100cc Aero-Works Yak 54 QB Mark Dennis Manufacturer's Announcements 26 09-11-2006 01:32 PM


All times are GMT -5. The time now is 04:02 PM.

All Flyinggiants.com content copyright 2006-2014 by RCGroups.com, LLC except where otherwise indicated. The Flyinggiants.com logo is a trademark of RCGroups.com, LLC.
Please report any misuse of our trademarks or copyright violations using the contact form.
RCGroups Network :: RCGroups :: Crackroll :: RC Cars

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.