RE: 1/5 Scale Top Flite P51
The US engines 41 is a dog. Use the Zenoah g-62. Cut back some of the cooling fins in front of the exhaust, instead of the cowl so the engine will fit the cowl (no lack of cooling doing this). I've got 5 seasons and 650 flights on my TF mustang with this setup...in two words, it works. It also works well with less cowl on the bottom removed for cooling. The g-62 using 91 octane, 80 to 1 AMS oil, and an APC 22X10 prop, using several ground radars and one airborne radar, my stang flies at 115-125mph.
Posted on: 3/24/2011 6:16 AM by Author "VKerster" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10419500

RE: Top Flight Giant P-51D Mustang prop size?
Cold Reboot, Looks like the ultralight crowd had some issues with ams oil 2000, but none of the threads said what mix they were using, and if the carb mixtures were setup correctly. None mentened anything about using the sabre synthitic. Sounds like more than a fair share of engine burn downs with lawn boy, stil, and penzoil as well. Results don't lie, i'm sticking with what i know works....
Posted on: 1/5/2010 11:15 PM by Author "VKerster" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9391022

RE: Top Flight Giant P-51D Mustang prop size?
Cold Reboot, wondered what your issue was reguarding not using ams oil period. i've got 500+ flights on the g-62 with ams oil with no lub issues. the inside of the engine still looks brand new. The president of IMAC world wide strongly suggested that i use this oil. Please explain.l
Posted on: 1/5/2010 10:13 AM by Author "VKerster" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9388807

RE: Top Flight Giant P-51D Mustang prop size?
BillyD, shelve the glow engine and get yourself a Zenoah g-62 for your p-51. Use an APC 22x10 prop, 93 octane fuel. and AMS oil Sabre oil at 90 to 1. I've been campaning my TF Giant p-51 for 4 yrs with total confidence with this combo with tremendous results: 40 lb. of thrust at 7400 rpm static, 125 mph passes with pito radar, 12 oz. of fuel on 10 min. flights, no glow mess, $2.70 gal. fuel costs, 450+ flights with no dead sticks, no failing ignition battery worries with CDI ignition, massive flight envelope, the plane balanced with no lead, and the engine was the least expensive in it's class. (4 blade prop is for static display.)
Posted on: 1/4/2010 10:29 PM by Author "VKerster" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9387783

RE: TF 1/5 Scale P-51 ARF Assembly (1ST MISHAP!!!)
crashproof, got 125mph on the flat with my tf p-51 using a g-62-apc 22x10 and 94 octane fuel using an on board electronic speedometer. 22lbs, 24 lbs with fuel.
Posted on: 1/7/2009 8:53 PM by Author "VKerster" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=8332012

RE: TF 1/5 Scale P-51 ARF Assembly (1ST MISHAP!!!)
crashproof, the zinger 22x10 is a paint stick. try either a apc22x10 or a xoar22x10 on that g-62 and watch your stang sizzle. you'll get 40% more thrust.
Posted on: 1/7/2009 8:10 PM by Author "VKerster" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=8331805

RE: Skyshark P-40N Build
GENTLEMAN, I'M NEW TO THE THREAD, JUST RECIEVED MY P-40 FROM SKYSHARK YESTERDAY,HAVE BEEN READING THRU THE POSTS. WOULD APPRECIATE ANY THOUGHTS ON THE BUILDUP, AND FLYING CHARACTORISTICS, ETC, OF THIS BIRD....VKERSTER
Posted on: 10/16/2008 7:56 PM by Author "VKerster" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=8055507

RE: KMP F-7F Tigercat
GENTLEMEN, I'VE BEEN ABSENT FROM THE THREAD FOR ABOUT A MONTH, TRYING TO COME TO GRIPS WITH THE HORRID CRASH OF T-CAT #2 AT THE DOGS SHOW IN DAYTON LAST MONTH. ANOTHER ENGINE OUT, TOTALLY DESTROYED THE PLANE, BOTH ENGINES RUINED. CRASHED INTO THE CROWD,WAS AN ABSOLUTE MIRACLE NO ONE WAS HIT OR HURT. I'VE RUN OUT OF IDEAS OF WHY I HAVE HAD THESE ENGINE OUTS, HAVE TRIED EVERYTHING I COULD THINK OF, ALONG WITH THE COLLECTIVE MINDS OF OTHER TWIN PILOTS. I HAVE DECIDED TO BACK OUT OF THE TWIN ENGINE SCENE FOR A WHILE.... HAVE SOME PARTS SOME OF YOU T-CAT BROS MIGHT HAVE A USE FOR- 2 SETS OF GEAR DOORS, CANAPY DECK, SOME LANDING GEAR PARTS, ETC., FEEL FREE TO GIVE ME A SHOUT AT VKERSTER@COMCAST.NET [:@]
Posted on: 9/28/2008 8:36 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7999908

RE: KMP F-7F Tigercat
JB, CONGTATS ON YOUR MAIDEN. MINE WOULD PITCH UP WHEN THE GEAR WAS RETRACTED, THEN LEVEL OUT WITH SOME DOWN ELEVATOR, THEN BACK TO NETURAL STICK....
Posted on: 8/25/2008 6:09 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7884984

RE: KMP F-7F Tigercat
FLYTAILDRAGGER, WHEN YOU PAY $1000 FOR AN AIRPLANE, IT BETTER BE RIGHT, THE HARDWARE SHOULD BE OF EXCELLECT QUALITY, AND YOU SHOULD'NT HAVE TO START RE- ENGINEERING THE PLANE TO MAKE IT RIGHT, EVEN IF IT IS MADE IN CHINA. KMP SHOULD REJECT AND SUB STANDARD PRODUCTS BY THEIR "MANUFACTURER" AND MAKE THEM EAT THE COST OF MAKING JUNK. THEN, FIRE THEM AND HIRE A MANUFACTURER THAT DOES WORK LIKE GREAT PLANE'S MANUFACTURER.....
Posted on: 8/23/2008 7:01 AM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7876368

RE: KMP F-7F Tigercat
DUBER, I RECIEVED THE GEN 5 GEARS LAST WEEK, MORE OF THE SAME KMP WOES WHICH INCLUDE: 6 SCREWS MISSING, INCLUDING THE SET SCREWS THAT HOLD THE CYLINDER ENDS TO THE CROSS PINS., HAD TO COBBLE THE SCREWS OFF T-CAT #1'S CRASHED GEAR TO FIX THIS. THE I.D. OF THE BLOCK BORES THAT HOLD THE MAIN GEAR STRUTS WERE TOO BIG, HAD TO LINE THE BORE WALLS WITH .002 SHIM STOCK TO GET THEM TO TIGHTEN UP. THE BOTTOM OF ONE OF THE BORES HAD A NUB STICKING UP ABOUT .050 SO THE MAIN GEAR STRUT WOULD'NT SIT DOWN IN THE BORE ALL THE WAY. FOUND MULTIPLE SCREWS AND BOLTS LOOSE, SOME SCREWS WERE'NT EVEN SCREWED IN THE UNITS, FOUND THEM FLOATING AROUND IN THE SHIPPING BAGS. THE AIR LINE SHIPPED IS TOO SMALL ON THE I.D. AND WON'T GO OVER THE SUPPLIED FITTINGS.THE SET SCREWS THAT HOLD THE NOSE GEAR TO THE PIN ARE WAY TOO SMALL, MACHINED THEM TO A 10-32, WAY MORE GRIPPING POWER. NO CABLE CAME WITH THE RETRACTS FOR THE NOSE GEAR STEERING.( THE CONTROL ARM I.D. IS BIGGER ON THE GEN 5 UNIT, SO YOU HAVE TO CUT AND RE -STRING THE CABLE TO USE THE GEN 5 ARM.) ONE OF THE MAIN GEAR'S AXLE'S WAS TOO SHORT TO FIT THE SUPPLIED SPACERS AND NYLOCK NUT, AGAIN HAD TO SWIPE A LONGER ONE OFF THE CRASHED T-CAT'S GEAR. THE BIGG QUESTION IS...... WHERE IS KMP'S QUALITY CONTROL?? GUYS, IF YOU CHOOSE TO USE THESE GEARS, LOCKTITE EVERY BOLT AND SCREW AND DON'T ASSUME THEY'LL WORK WITHOUT DOING THIS. HAVE SHELVED ALL THE KMP HARDWARE AND AM USING ROBART AIR VALVES, TANK, AIR LINES, FITTINGS, ETC. GENTS, SAVE YOURSELF A LOT MORE AGGRAVTION AND JUST GO BUY THE SIERRA RETRACTS[&:]..........
Posted on: 8/22/2008 6:42 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7874910

RE: KMP F-7F Tigercat
YO, ANYONE OUT THERE?[:D]
Posted on: 8/19/2008 6:23 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7864006

RE: KMP F-7F Tigercat
JBW, USING THE C.G. POINT IN THE DIRECTIONS, T-CAT #1 TOOK 12 OZ. OF LEAD IN THE NOSE MOUNTED BY THE NOSE GEAR DOORS AND THE GEAR UP, TO BALANCE SLIGHTLY NOSE HEAVY. THE PLANE FLEW AND LANDED VERY WELL WITH THIS AMOUNT OF LEAD. T-CAT #2 USING THE SAME RADIO, ENGINES, ETC., LOCATED IN THE SAME AREAS OF THE PLANE TOOK ONLY 6 OZ. TO GET THE SAME RESULTS. I MARKED THE C.G. POINT IN TWO PLACES ON THE TOP OF THE WING, TOOK A STRAIGHT EDGE AND MARKED TWO DOTS AT THE WING TIPS, THEN HAD A HELPER AND MYSELF USE ONE FINGER AT EACH POINT AT THE WING TIPS AND CHECKED THE C.G. DON'T FORGET TO BALANCE THE PLANE AXIALLY AS WELL. (LEFT TO RIGHT. THIS IS VERY IMPORTANT, SHOLUD BE NETURAL.)[;)]
Posted on: 8/14/2008 6:04 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7846298

RE: KMP F-7F Tigercat
CORD, THESE UNITS ARE AIR UP, SPRING DOWN, SO I GUESS THE'RE GEN 4S....
Posted on: 8/6/2008 3:37 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7816215

RE: KMP F-7F Tigercat
COL. WINTER, I HAD LENGTHY DISCUSSIONS WITH KMP ABOUT ENGINE CHOICES AT THE BEGINNING OF MY T-CAT "JURONEY", AND DECIDED 2 .91'S (30 CC'S) TO PULL UPWARDS OF 30 LBS. WAS WAY UNDERPOWERED TO SAY THE LEAST. MY FIRST T-CAT WAS AN AWESOME PERFORMER WITH THE G-26'S. USING THE SAME G-26'S ON T-CAT #2 WITH APC 16X10'S. ALSO USING A FUTABA SERVO SINCRONIZER FOR SINKING THE THROTTLES. THIS COMBO PULLS LIKE A 747, IN MY BOOK TOO MUCH IS JUST ENOUGH. I THINK YOUR CHOICE TO GO WITH TWO 24 CC GASSERS IS A GOOD ONE. I CHECKED KMP'S WEBSITE, AND THEY ARE CHARGING $300.00 FOR THEIR WEAKLING RETRACTS.[:@] I NEED TO SAVE UP FOR THE SERRIA UNITS. FRUSTRATING, THIS IS HOLDING UP THE MAIDEN.....
Posted on: 8/6/2008 11:13 AM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7815281

RE: KMP F-7F Tigercat
F8, I 'M USING A ROBART AIR VALVE, AIR TANK, AIR FILLER CHUCK, AND PRESSURE GAGE,AND AIR LINES AND CONNECTORS. ALL ROBART EXECPT FOR THE RETRACT UNITS (GEN. 5), STRUTS, AND WHEELS. I MISPOKE ON MY LAST POST. THE MAIN LEFT SIDE WORKS, IT'S THE RIGHT MAIN AND SOMETIMES THE NOSE GEAR THAT DOESN'T WORK RIGHT....
Posted on: 8/5/2008 1:51 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7811681

RE: KMP F-7F Tigercat
PYLON2, 99% DONE WITH T-CAT #2, HAVING ISSUES WITH THE KMP RETRACTS. THESE UNITS DON'T WANT TO SPRING DOWN AND LOCK CORRECTLY. AM USING 95 PSI IN THE LARGE ROBART AIR TANK. THEY ACT LIKE THE RETURN SPRINGS AREN'T STRONG ENOUGH TO DEPLOY AND LOCK THEM. ANYONE ELSE HAD THIS ISSUE. THIS IS HOLDING UP MAIDEN FLIGHTS.[:@]
Posted on: 8/5/2008 10:36 AM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7810924

RE: KMP F-7F Tigercat
BIGNUTS181, EVEN WITH THE G-26'S , MY T-CAT NEEDED 6 TO 12 OZ. OF LEAD IN THE NOSE TO BALANCE, SO THE WEIGHT OF THE ENGINES MAKING IT HEAVIER ISN'T REALLY THE ISSUE. THIS BIRD HAS A VERY HEAVY TAIL BOOM. THE PLANE IS WHAT IT IS ,AND REQUIRES LOTS OF WEIGHT FORWARD OF THE DESIGNED C.G. POINT TO BALANCE....
Posted on: 7/31/2008 11:38 AM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7792624

RE: KMP F-7F Tigercat
CHSARB, T-CAT #2 WIEGHS IN AT 30 LBS. EVEN, WITH THE G- 26'S AND 6 OZ OF LEAD IN THE NOSE. AND 28 OZ. FOR FUEL, AND IT'S AT 31 LBS. 12 OZ TAKE OFF WEIGHT. T-CAT #1 WAS ABOUT 28 LBS. WITH THE FUEL. THE NEW SKIN KMP IS USING MUST BE HEAVIER, BUT 2 LBS. WORTH??? HOPE IS FLIES[8|]
Posted on: 7/30/2008 10:14 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7790686

RE: KMP F-7F Tigercat
BLACKWIDOW, HERE'S THE PICS OF THE "COFFINS'..... THEY WORK EXTREMELY WELL. CUSTOM SIZED, BLOWN WITH PACKING FOAM. NOTE THE PVC FIELD STANDS. THE FUSE BOX IS 12"X83", AND THE WING BOX IS 33"X90".
Posted on: 7/18/2008 12:37 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7745088

RE: KMP F-7F Tigercat
BLACK WIDOW, HAULING MY T-CAT IN TWO CUSTOM MADE "COFFINS" IN A 6'X12' TRAILER, AND USING A CUSTOM MADE PVC STAND FOR SETUP AT THE FIELD. WILL POST PICS SOON.......
Posted on: 7/17/2008 9:47 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7742992

RE: KMP F-7F Tigercat
BLACKWIDOW, WOAH! THAT'S ABOUT 75 OZ. PER SQ. FT. FAT LADY. MY FIST T-CAT WAS 28 LBS. WITH FUEL AND THE G-26'S PULLED IT LIKE A 747, TONS OF POWER. THESE CATS ARE TYPICALLY HEAVY AND FAST. GLAD YOU CHOSE THE G-26'S.......
Posted on: 7/9/2008 8:40 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7713004

RE: KMP F-7F Tigercat
JB, THE THE SURFACE THROWS IN THE MANUAL ARE WHAT I USED ON MY FIRST T-CAT, THEY WORKED VERY WELL WITH THE DUAL RATES OFF ON ALL SURFACES. HAVEN'T POSTED IN A WHILE, T-CAT #3 IS ALMOST DONE, SOME RADIO AND AIRLINE WORK TO DO. I'M USING THE G-26'S AGAIN, THIS TIME THE CYLINDER HEADS HANG OUT THE BOTTOM OF THE COWL ABOUT 2 FINS OR SO, (ON THE FIRST T-CAT THEY WERE COMPLETLY IN THE COWLS) SHOULD GET GOOD COOLING. WILL POST PICS SOON. I'M GLAD THIS PROJECT IS ALMOST DONE, BUILDING 2 T-CATS IN A YEAR HAS BEEN A CHALLANGE TO SAY THE LEAST...
Posted on: 7/9/2008 8:27 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7712953

RE: KMP F-7F Tigercat
DETLEF, EXCELLENT JOB ON YOUR MAIDEN FLIGHTS. THOSE G-26'S REALLY MAKE HER RIP! MY FIST LANDING WAS LIKE YOURS. I FOUND WITH A LITTLE DOWN ELEVATOR AS SOON AS THE MAINS TOUCH WILL STOP THE HOPPING AND PORPUSING. MY 2ND T-CAT IS COMING TOGETHER, GLUING THE WING TOGETHER, SO FAR SO GOOD. AM ANXOUS TO GET THIS PROJECT WRAPPED UP AND START UP AGAIN WHERE I LEFT OFF WITH IT BEFORE LAST FALL'S DISASTER........
Posted on: 5/6/2008 9:30 AM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7462191

RE: KMP F-7F Tigercat
CHASRB, HAVE YOU FLOWN YOUR T-CAT YET? I'M READY TO GLUE MY WING TOGETHER.
Posted on: 4/18/2008 11:06 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7391413

RE: KMP F-7F Tigercat
CHASRB, MY PLANE, T-CAT #2 IS #18 FROM BATCH #3. ALL, T-CAT BROS, SOMETHING TO REPORT. I CUT AN ACCESS HOLE FOR THE WIRE EXIT IN MY CENTER SECTION AND PLEASENTLY DISCOVERED A VERY BEEFY (1/4" TO 3/8" THICK) PLYWOOD CENTER CROSS BRACE GLUED IN RIGHT ON THE CENTER LINE OF WHERE THE WING TUBES BUTT IN TO THE RIBS. I TOOK A GOOD LOOK AT MY CRASHED WING AND FOUND THAT WING HAS THE SAME WOOD BRACING (#38 BATCH #1) AS T-CAT #2. THIS WOULD EXPLAIN WHY THE CENTER OF THE CENTER SECTION DID''NT FAIL IN THE CRASH. GENTS, A QUICK CHECK TO SEE IF YOUR WING HAS THE CENTER BRACE INSTALLED: GENTLY PRESS ON THE SKIN WHERE THE CENTERLINE OF THE TUBES WOULD THEORICALLY INTERSECT IF THEY CAME TOGETHER. THE CENTER SECTION SHOULD FEEL VERY SOLID IN THIS AREA. YOU SHOULD BE ABLE TO FEEL THE WOOD UNDER THE SKIN. IT NOW APPEARS NO REINFORCING IS NESSASSARY ON MY WING.....[;)]
Posted on: 4/14/2008 11:53 AM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7371605

RE: KMP F-7F Tigercat
T-CAT BROS, I TALKED TO PAUL KONDOR FROM KMP AT THE TOLEDO SHOW FRI., AND DISCUSSED THE CENTER SCETION ISSUE IN GREAT DETAIL WITH HIM. KMP'S POSTITON ON THIS ISSUE IS THE ONLY CENTER SECTION FAILURES ARE FROM TWO CRASHES, MINE(OAK TREE STRIKE), AND THE OTHER WAS THE CART WHEEL (TIP STALL ON TAKEOFF) CRASH. THE CENTER MOST PART OF THE CENTER SECTION ON MY PLANE DID NOT FAIL, ONLY WHERE THE TREE BRANCH WENT THRU. PAUL SAID THE ENGINEERING AND ASSEMBLY METHODS MAKE THE CENTER SECTION PLENTY STRONG AND THERE IS NO NEED TO BUTCHER UP THE WING TO INSTALL REINFORCEMENTS. THEY BUILD UAV'S FOR THE GOV'T USING THE SAME MATERIALS AND ENGINEERING METHODS AS THE T-CAT AND HAVE HAD NO WING FAILURES. AGAIN, THIS WHOLE ISSUE SEEMS TO BE DEBATIBLE. STILL NOT SURE WHAT MY DECISION WILL BE WITH MY BIRD....
Posted on: 4/6/2008 6:39 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7342616

RE: KMP F-7F Tigercat
KINVERFLYER, READ POSTS 122,123,124,125,129, AND 130 ON P.6 AND P.7 ON THE OTHER T-CAT BUILD THREAD.
Posted on: 4/3/2008 11:07 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7330095

RE: KMP F-7F Tigercat
KINVERFLYER, I AGREE. STICKING WITH THE FACTS IS THE ONLY WAY TO GO.....
Posted on: 4/1/2008 2:41 PM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7316969

RE: KMP F-7F Tigercat
KNIVERFLYER, ASSUMING PRODUCTION T-CATS ARE BUILT WITH THE SAME MATERIALS, METHODS AND MOLDS, AND BASED ON MY EXPERIENCE WITH TWO T-CATS, I CAN TELL YOU THAT THERE ARE NO PRODUCTION T-CATS ( BATCHES 1 AND 2 ANYWAY) FLYING ANYWHERE THAT WEIGH ONLY 22LBS., UNLESS THE BUILDER ELECTED TO MOVE THE INSTRUCTION MANUAL'S RECOMMENDED C.G. VERY AFT, WHICH WOULD SEROUSLY JEPORDIZE THE DESIGNED FLIGHT ENVLOPE OF THE PLANE, COMPROMISING THE PLANE'S ABILITY TO FLY. IT DOESN'T MATTER WHAT ENGINES ONE USES, THE PLANE HAS TO BALANCE. YOU CAN'T CHEAT THE LAWS OF PHYSICS. THE TAIL SECTION ON THIS BIRD IS EXTREMELY HEAVY. IT TOOK 2 G-26'S, A 3000MAH BATTERY MOUNTED IN FRONT OF THE FRONT BULKHEAD, AND 12 OZ. OF LEAD AS FAR FORWARD AS I COULD GET IT IN THE NOSE TO BALANCE MY BIRD (WITH GEAR RETRACTED) PER THE MANUAL'S C.G. LOCATION. MY PLANE TIPPED THE SCALES AT 26.5 LB. DRY. KMP'S PROTOYPE MAY HAVE BEEN 22LBS., BUT IT IS NOT REPRESENTITIVE OF THE PRODUCTION MODELS.
Posted on: 4/1/2008 11:45 AM by Author "VKerster" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=7316209