RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND FASTER!!!

RE: THE NEW CERMARK F-16 BUILD IT BETTER, STRONGER, AND FASTER!!!
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RE: THE NEW CERMARK F-16 BUILD I... - 7/7/2008 4:16:13 AM

LUDS96

Posts: 413
Joined: 10/16/2002
From: East Haven, CT, USA
Status: offline

Miklos! I feel the same way about this plane sometime's But I don't get the kick from my other planes that I get from this one. It's one or two Graet flights than and Hour or two of repairs to the gear. Try putting a single piece of light ply in the nose like in my earlier post. It is surely is worth the time. I lost a main gear on the field that day you saw mine flying. Hit a big chunk of wood on the field. Who knows. Give us something to do!

(in reply to miklos)

Post #: 1601

RE: THE NEW CERMARK F-16 BUILD I... - 7/7/2008 4:33:33 AM

LUDS96

Posts: 413
Joined: 10/16/2002
From: East Haven, CT, USA
Status: offline

Great Video's Thanks for posting. Did I hear the ventral fins hit the ground when you landed. I don't have mine on.

(in reply to gsoav8r)

Post #: 1602

RE: THE NEW CERMARK F-16 BUILD I... - 7/7/2008 8:25:36 AM

Robert Groves

Posts: 149
Joined: 5/1/2007
From: Johannesburg, SOUTH AFRICA
Status: offline

Hi Jim

Congrats on the maiden, great video and great looking plane, I like the strut btw!

It looks like my maiden all over again, except you managed to put it down way better than I did.

What expo are you using? I found my 15% works very well.

A bit of advice I want to offer if I may, when you are flying this bird, it becomes very obvious that the nose is easier to raise when the fuel is lower, which is the reason I was "balooning" the plane on landing, which seems to be what you did as well.
On landing keep elevator feed and play with throttle more, if you find yourself pulling back "hard" on the elevator when the plane drops, chances are your plane is going to gain height and loose momentum.

My experience in jets is limited to this plane, but from what I see momentum is the name of the game here, without it you can get bitten badly!

The only way I got this right was finding a suitable flight sim plane.

Cheers

Rob

(in reply to sbrackets)

Post #: 1603

RE: THE NEW CERMARK F-16 BUILD I... - 7/7/2008 12:20:00 PM

TXKflier

Posts: 64
Joined: 1/24/2006
From: Texarkana, TX, USA
Status: offline

quote:

ORIGINAL: Robert Groves

The only way I got this right was finding a suitable flight sim plane.

Which flight sim and/or plane?

Thanks,
Lynn

(in reply to Robert Groves)

Post #: 1604

RE: THE NEW CERMARK F-16 BUILD I... - 7/7/2008 1:16:34 PM

Robert Groves

Posts: 149
Joined: 5/1/2007
From: Johannesburg, SOUTH AFRICA
Status: offline

I learned to fly initiall on the Reflex software a year ago! (after 20 hrs I did my solo in 2 weekends.)
They have a few downloads on their product store, one of them being an F15.
Although I have never found the sims very accurate, by playing around with the dimensions of the F15, I was able to make it fly like a man hole cover!

By controlling throttle only, with constant elevator, it gives you the just of how to land the F16 from Cermark.
After2 hrs of this, my first landing was as smooth as silk!

Hope it helps.

http://www.reflex-sim.de/reflex-sim/shop/catalog/

(in reply to TXKflier)

Post #: 1605

RE: THE NEW CERMARK F-16 BUILD I... - 7/7/2008 1:59:42 PM

sbrackets

Posts: 110
Joined: 3/28/2007
From: Simpsonville, SC, USA
Status: offline

Thanks Robert and everyone eles with the advice, It's well taken. The only damage I took from my crash landing was the landing gear support wood. The bottom fins were OK! I believe what saved them was thart i still had a good left main gear and the O.S 91 FX muffler hung down low enough that both keep the belly from coming in contact with the ground. The fiberglass has only small cracks around two of the wheel wells where the gear was forced back up inside the fuselage. I was were lucky this time. I was given a second chance

I know now that I cut my flight short. I should have stayed aloft longer to burn up more fuel, But reading the forums you hear where folks seem to run out of fuel in a short time and I was afraid of that. After I crash landed I saw where I still had 3/4 of fuel left in the tank after a good 5 min. flight. So yes the nose was still to heavy with fuel and I'm sure that added to my crash landing.

As for my Expo mix in the radio, I believe it's set at 25% on the elevator at full rate. The plane just felt a little heavy/ slow to my responces when I pulled back on the elevator stick. Too much expo I believe.

When I took off I had my ailerons set at half rate, then switched to full rate once in the air. OH well She'll fly again, Will post some photos of the belly damage for you all to see later today. I believe I'll even add more photos has I perform the repair job so others can see how to fix there F-16 in the future.

Regards, Jim

(in reply to Robert Groves)

Post #: 1606

RE: THE NEW CERMARK F-16 BUILD ... - 7/7/2008 2:30:59 PM

Robert Groves

Posts: 149
Joined: 5/1/2007
From: Johannesburg, SOUTH AFRICA
Status: offline

Good to hear Jim!
I got some fixing to do too on the wheel arches, I still have 1 original I need to pull and and replace.
Cracked the fuse again on a hard landing !!!!

Could kick myself!
Change those muffler bolts!!! just in case, and check the muffler isnt cracked.
You dont want the muffler coming off next flight!

R.

(in reply to sbrackets)

Post #: 1607

RE: THE NEW CERMARK F-16 BUILD I... - 7/7/2008 2:31:46 PM

gsoav8r

Posts: 211
Joined: 1/17/2002
From: Huntersville, NC, USA
Status: offline

Hi Luds,
Ive never had an issue with the fins except when they were damaged on my maiden.
I believe what you heard was the tail cone hitting the tarmac.

Regards,
James

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Revver Bro #202

(in reply to LUDS96)

Post #: 1608

RE: THE NEW CERMARK F-16 BUILD I... - 7/9/2008 7:46:20 PM

miklos

Posts: 195
Joined: 4/1/2004
From: Meriden, CT, USA
Status: offline

Well, got down to it last night and finished patching up the front gear and block. She's ready for another try hopefully this weekend.

By the way, it would be really helpful since all 3 of my orginal blocks are trashed if someone had a PDF drawing of the original gear blocks so that next time mine broke, I could just trace a new set onto a piece of wood and cut them out instead of haveing to reengineer them every time.
Anybody??

(in reply to gsoav8r)

Post #: 1609

RE: THE NEW CERMARK F-16 BUILD I... - 7/9/2008 9:38:45 PM

sbrackets

Posts: 110
Joined: 3/28/2007
From: Simpsonville, SC, USA
Status: offline

Hey Mike
I too was working on my gear blocks last night, I ended buying a sheet of 1/4" Hobby Plywood instead of trying to find some Maple or Spruce hardwood.
I know what your talking about on the gear blocks. I search on the web before I starting the rebuild. I couldn't find drawings or anything. So again it's up to me to figure it out.

Instead of going back with the "U" shape retract mounting plate. I am just going to install (2) 3/4"W x 4"L x 1/4"H strips into the female slots between the fuselage bulkheads for each gear. Glue them in place with CA.
Then underneath the 4" strips, glue another 1/8" H x 3.5"L x 3/4" W Plywood strip snug between the two bulkheads. This will keep the "NEW"gear block from shifting foward or aft. between the two bulkheads. When all wood is set in place, glued into place , then mark your holes and drill them. Secure with whatever hardware you choose.

If they break again, all I have to do is use some De-Bond agent on the CA. and remove the broke wood and replace again.

I will be glad to post some photos if you like.

Regards, Jim S.

(in reply to miklos)

Post #: 1610

RE: THE NEW CERMARK F-16 BUILD I... - 7/10/2008 10:10:33 AM

miklos

Posts: 195
Joined: 4/1/2004
From: Meriden, CT, USA
Status: offline

Thanks sbracket... That's pretty much the way I did it this last time on the nose gear bracket except I epoxied all wood in place. The CA idea sounds good though as it would be nice to be able to remove the broken wood without too much hassle.

(in reply to sbrackets)

Post #: 1611

RE: THE NEW CERMARK F-16 BUILD ... - 7/13/2008 8:50:03 PM

SavAxiInf

Posts: 68
Joined: 4/3/2004
From: Akron, OH, USA
Status: offline

I have a question about the cg. Book says 8.5" with this setting I need 12oz of lead in its pants.
Does this sound right. I am not using anything special.SJ90LX and A123 battery pack in the rear.

(in reply to miklos)

Post #: 1612

RE: THE NEW CERMARK F-16 BUILD ... - 7/13/2008 9:21:09 PM

sbrackets

Posts: 110
Joined: 3/28/2007
From: Simpsonville, SC, USA
Status: offline

The book is wrong! Correct CG is 7.5" .....With the fuel tank empty and the retracts in the down position measure from the leading edge of the wing at the root, mark back 7.5". That should do ya.

Mine flys good at that setting, and this setting is for the latest version 3.

Jim

(in reply to SavAxiInf)

Post #: 1613

RE: THE NEW CERMARK F-16 BUILD ... - 7/14/2008 3:01:25 AM

phjoker

Posts: 370
Joined: 9/20/2005
From: Vernon, NJ, USA
Status: offline

sdbrackets is correct.
Thats where mine is ballanced. 7.5" back.
I also had to add some lead to the tail but it wasn't much.

_____________________________

Revver Bro #157

(in reply to sbrackets)