RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND FASTER!!!    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Airplanes >> Extreme Speed Prop Planes >> RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND FASTER!!!
Page: <<   < prev  67 68 69 70 71 72 73 74 75 [76]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/6/2012 11:05 AM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline 		Beautiful weather turned into dense fog for most of the morning on Sunday so maybe next weekend. BTW, mine came in at 10.4 pounds. How did i do?

Hide Signatures

(in reply to ftjets)
       Post #: 1876

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/6/2012 11:38 AM   
k8svrick


 

Posts: 174
Score: 100
Joined: 3/21/2007
Last Login: 3/17/2013
From: Columbus, OH, USA
Status: offline 		Apparently RCU is having hissyfits this morning, so I am posting this again since the server crapped out.

Mine came out to just under 11 pounds. I am using the Jett 90LX, sport tuned muffler, retracts and a 3000 mah 5 cell battery to counteract the effects of the engine weight.

The CG in the book is wrong if it says it should be 7 1/2" back from the L.E. at the root. See my discussion on http://ricktressler.com/id48.html

Hope you have a good first flight.

Rick

_____________________________

Rick - Columbus, OH
www.ricktressler.com

Hide Signatures

(in reply to ftjets)
       Post #: 1877

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/7/2012 6:52 PM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline
quote:

ORIGINAL: k8svrick


The CG in the book is wrong if it says it should be 7 1/2'' back from the L.E. at the root. See my discussion on http://ricktressler.com/id48.html

Hope you have a good first flight.

Rick

Rick, can i assume that you made a minor misprint there or did i read it wrong? The CG should be 7-1/2" should it not? The manual states 8-1/2". Mine balances at 7-1/2" with just a couple ounces of ballast in the tail. I'm trying to find a suitable battery that will fit to eliminate the dead weight and at least add more capacity. I see my weight was on target, i'm happy with that. Actually i mis-stated the weight. It was 10lb 4oz not 10.4 pounds. Thanks for all the info.
John

Hide Signatures

(in reply to k8svrick)
       Post #: 1878

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/8/2012 3:13 AM   
TXKflier


 

Posts: 77
Score: 100
Joined: 1/24/2006
Last Login: 5/11/2013
From: Texarkana, TX, USA
Status: offline 		Actually, Rick's earlier posts were correct when he said the CG should be 7.5 inches. He did mess up on the one just before mine.

You need to make the initial flights at 7.5 inches. When you feel comfortable, fly it inverted and see how much down elevator is required to maintain level flight. If it needs a ton of down, you might move the CG back 1/4 inch and try it again. Landings are another way to know if the CG is correct. On my Cermark F-18P, I started out with the CG too far back. When I came in to land, the nose wanted to pitch up. I think the F-16P will probably do the same thing if it's tail heavy.

Here's a photo of my friend's F-16P that I maidened for him..

http://images.rcuniverse.com/forum/upfiles/285544/Wr55301.jpg

Note that the 7.5 inches is measured from the leading edge of the wing panel where it mates with the fuselage.

Lynn

Hide Signatures

(in reply to ftjets)
       Post #: 1879

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/8/2012 3:21 AM   
k8svrick


 

Posts: 174
Score: 100
Joined: 3/21/2007
Last Login: 3/17/2013
From: Columbus, OH, USA
Status: offline 		Guys,

I screwed up on my post about the CG on this plane. I stated that 7 1/2" back from the L.E. at the root (where the wing meets the fuse) was wrong.

What I meant to say was that the CG is 7 1/2" back and that the manual incorrectly states the CG should be 8 1/2" back.

That is what I get for working 14 hours days.

Rick

_____________________________

Rick - Columbus, OH
www.ricktressler.com

Hide Signatures

(in reply to TXKflier)
       Post #: 1880

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/9/2012 10:17 AM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline 		I know how you feel Rick. That's why it took me two months to put this one together. I am hoping for good weather this weekend and get her airborne. I do have the balance at 7.5".

Hide Signatures

(in reply to k8svrick)
       Post #: 1881

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/9/2012 11:44 AM   
k8svrick


 

Posts: 174
Score: 100
Joined: 3/21/2007
Last Login: 3/17/2013
From: Columbus, OH, USA
Status: offline 		Thanks. It would hurt to be a tad nose heavy. With full fuel, you'll probably have that if it balances right on the CG mark. Good luck with it.

Rick

_____________________________

Rick - Columbus, OH
www.ricktressler.com

Hide Signatures

(in reply to ftjets)
       Post #: 1882

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/9/2012 11:50 AM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline 		Thanks. I'm looking forward to the maiden. It is a sharp looking bird!

Hide Signatures

(in reply to k8svrick)
       Post #: 1883

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/9/2012 11:53 AM   
TXKflier


 

Posts: 77
Score: 100
Joined: 1/24/2006
Last Login: 5/11/2013
From: Texarkana, TX, USA
Status: offline 		I think you meant to say "It wouldn't hurt.."

;-)

Hide Signatures

(in reply to k8svrick)
       Post #: 1884

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/9/2012 12:07 PM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline
quote:

ORIGINAL: TXKflier

I think you meant to say ''It wouldn't hurt..''

;-)

It's early.

Hide Signatures

(in reply to TXKflier)
       Post #: 1885

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/9/2012 12:19 PM   
k8svrick


 

Posts: 174
Score: 100
Joined: 3/21/2007
Last Login: 3/17/2013
From: Columbus, OH, USA
Status: offline 		When I wrote that, I hadn't yet had my first cup of coffee. Yes, I meant it wouldn't hurt to be nose heavy.

TGIF

_____________________________

Rick - Columbus, OH
www.ricktressler.com

Hide Signatures

(in reply to ftjets)
       Post #: 1886

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/21/2012 12:01 PM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline 		Discovered a bad receiver switch then got consumed by a re-modeling project making my workshop unuseable. Some day i'll maiden it.

Hide Signatures

(in reply to k8svrick)
       Post #: 1887

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/25/2012 10:17 PM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline 		Finally got it airborne. I had it slobbering rich on the new engine but it was still moving along enough to get everyones attention. Sweet flying jet! Haven't viewed the video yet but i'll try to post it some time in the nar future. I like this jet!

Hide Signatures

(in reply to ftjets)
       Post #: 1888

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 11/25/2012 11:23 PM   
k8svrick


 

Posts: 174
Score: 100
Joined: 3/21/2007
Last Login: 3/17/2013
From: Columbus, OH, USA
Status: offline 		Glad to hear you got that thing in the air. Mine has become a classic hangar queen. That said, if I can get some time next summer, I'll bring it out for a few flights.

Keep it up.

_____________________________

Rick - Columbus, OH
www.ricktressler.com

Hide Signatures

(in reply to ftjets)
       Post #: 1889

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 1/7/2013 11:53 AM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline 		The holidays are finally over and i have had some time to tweak and tune. I also replaced the air retracts with Eflite electrics. The airs worked fine but electrics are simply easier to operate and just look cool going up and down. My on-board GPS gave me 142.3mph. A visit to the pitch-speed calculator confirmed that it was probably quite accurate. RPM on the ground was a bit over 17,000 with an 11-9 APC prop on Powermaster 15%. I doubt if that's the record for this thing but i was happy with it. This is one sweet flying jet! The only problem i have now is keeping an exhaust deflector on the muffler. I have tried the Hanger 9 and Hobbico 90 size silicone deflectors attached with professional grade zip ties that were quite tight. One popped off in the air and one didn't even make it to the runway while taxiing out. I'll have to give the Macs hard pipe a try.

Hide Signatures

(in reply to k8svrick)
       Post #: 1890

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 1/7/2013 7:00 PM   
LUDS96



Posts: 469
Score: 100
Joined: 10/16/2002
Last Login: 5/12/2013
From: East Haven, CT, USA
Status: offline 		http://www.rcuniverse.com/forum/fb.asp?m=7591745

My fast mover. Been clocked at 140. Fun bird wish I could get a new one. Still have this one!!

Hide Signatures

(in reply to ftjets)
       Post #: 1891

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 1/8/2013 12:42 AM   
k8svrick


 

Posts: 174
Score: 100
Joined: 3/21/2007
Last Login: 3/17/2013
From: Columbus, OH, USA
Status: offline 		I have not had mine clocked. I am guessing - perhaps 130. Mine came out at just a hair under 11 pounds. I have the Dub Jett 90 and Dub's tuned muffler, a lighting kit, battery and a 3000 mah 5 cell pack in the tail to counter the weight in the nose from that engine. The Jett is turning an 11/8 around 12,500 on the ground but it unloads in the air. Still does not get much flight time.

I have been wrestling with a radio interference problem in my 50cc Extra 260, so I have not been doing anything with R/C except trying to figure out what's going with that. Spring will be here soon enough...

_____________________________

Rick - Columbus, OH
www.ricktressler.com

Hide Signatures

(in reply to LUDS96)
       Post #: 1892

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 1/8/2013 2:36 AM   
LUDS96



Posts: 469
Score: 100
Joined: 10/16/2002
Last Login: 5/12/2013
From: East Haven, CT, USA
Status: offline 		I've got an 11X12 apc on my OS108 tach's 12,500 to 13'000 on the ground. Get's on the pipe in the air and it's a screamer. Most fun plane I have to fly!!!


< Message edited by LUDS96 -- 1/8/2013 3:04 AM >

Hide Signatures

(in reply to k8svrick)
       Post #: 1893

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 1/8/2013 2:47 AM   
k8svrick


 

Posts: 174
Score: 100
Joined: 3/21/2007
Last Login: 3/17/2013
From: Columbus, OH, USA
Status: offline 		Okay, so you're running a 1.08 OS. That's more motor than Cermark specified for that ship. Be careful. Did you beef up the Motor mounts? Nothing you can really do to strengthen the airframe.

_____________________________

Rick - Columbus, OH
www.ricktressler.com

Hide Signatures

(in reply to LUDS96)
       Post #: 1894

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 1/8/2013 3:08 AM   
LUDS96



Posts: 469
Score: 100
Joined: 10/16/2002
Last Login: 5/12/2013
From: East Haven, CT, USA
Status: offline 		I set the engine down then traced it's footprint. I then cut out the mount and dropped the engine down were the prop would be in the correct center. Then I built new mount's under the original. I've been flying this bird for a few years with out a problem. Nice Plane wish I could find another. More's law applies!!

Hide Signatures

(in reply to k8svrick)
       Post #: 1895

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 3/17/2013 12:14 PM   
funflyerf4


 

Posts: 639
Score: 100
Joined: 11/8/2003
Last Login: 5/18/2013
From: vernon, NJ, USA
Status: offline 		It sure has been quiet on this post lately. I have hundreds of flights on mine and it was starting to look it, I striped all the covering on tail and wings and recovered with new gray ultra coat and some minor repairs on the fuselage at the wheel openings .I'm putting new retracts to get rid of the play in them.This plane was all ways my favorite prop plane to fly.I will post some pictures when I'm done.Then I'll start on my other one in the box which is a version #2.

Hide Signatures

(in reply to LUDS96)
       Post #: 1896

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND... - 4/8/2013 10:54 AM   
ftjets


 

Posts: 424
Score: 100
Joined: 11/9/2007
Last Login: 4/8/2013
From: Fort Myers, FL, USA
Status: offline
quote:

ORIGINAL: funflyerf4

It sure has been quiet on this post lately. I have hundreds of flights on mine and it was starting to look it, I striped all the covering on tail and wings and recovered with new gray ultra coat and some minor repairs on the fuselage at the wheel openings .I'm putting new retracts to get rid of the play in them.This plane was all ways my favorite prop plane to fly.I will post some pictures when I'm done.Then I'll start on my other one in the box which is a version #2.


I haven't spent much time online lately either but i have about 30 flights or so on mine. It still screams and still gets attention wherever i fly it. Gps indicates 140mph +/- a few on a regular basis so i guess it must be fairly accurate. Haven't had any issues with it, just having a ball flying it. Jett 90 BSE still starts easy and runs like a top!

Hide Signatures

(in reply to funflyerf4)
       Post #: 1897

Page:   <<   < prev  67 68 69 70 71 72 73 74 75 [76]
All Forums >> RC Airplanes >> Extreme Speed Prop Planes >> RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND FASTER!!!
Page: <<   < prev  67 68 69 70 71 72 73 74 75 [76]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


1.125RCU1