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Author Topic: Some more Bob Mathison builds  (Read 1594 times)

Offline Tom Perry

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Some more Bob Mathison builds
« on: February 25, 2008, 09:08:23 AM »
Bob asked me to put these picture up for him.

The blue one is a half a twister with a Big Mig .049.  The blue body yellow winged one is an Excalibur with a Big Mig .061.

The other one is my design with no name.  It is powered with a baby bee.

The last one is Molly the dog guarding the twister.   LL~

Bob chime in here if I missed anything.  :)
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Tight lines,

Tom Perry
 Norfolk, Virginia

Offline Joey Mathison 9806

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Re: Some more Bob Mathison builds
« Reply #1 on: February 25, 2008, 04:10:33 PM »
how long is the lines on the molly
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Offline Larry Renger

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Re: Some more Bob Mathison builds
« Reply #2 on: February 25, 2008, 05:41:56 PM »
Those all look good.  What are the sizes and weights?  What line lengths do you intend to use?

The reed engine looks like a Texaco, not a Babe Bee.
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Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

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 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Tom Perry

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Re: Some more Bob Mathison builds
« Reply #3 on: February 27, 2008, 04:32:39 PM »
Quote from: Larry Renger on February 25, 2008, 05:41:56 PM
Those all look good.  What are the sizes and weights?  What line lengths do you intend to use?

The reed engine looks like a Texaco, not a Babe Bee.

Actually a Texaco Jr. tank on a Baby Bee.  Good eye thogh.    :)

At this point in time with all the mixing and matching one can never be sure.   LL~
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Tight lines,

Tom Perry
 Norfolk, Virginia

Offline Robert Mathison

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Re: Some more Bob Mathison builds
« Reply #4 on: February 28, 2008, 02:19:58 PM »

 Larry, the EXCALIBUR 1/2A,

  WING IS 33"

  THE WEIGHT IS 13.9 OZ

   THE LINE LENGHT IS 52'

    THE ENGINE IS A BIG MIG .061

   THE TWISTER

   THE WEIGHT IS 10.4 OZ AND THE WING IS 29''

  THE LINE LENGTH IS 52;

  THE ENGINE IS A BIG MIG .049

  TOM'S DESINE

  THE WEIGH  7.25 OZ

  THE WING IS 261/2"

  THE LINE LENGTH  35" TO 40" WITH A COX .049

                      BOB
   
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Offline Tom Perry

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Re: Some more Bob Mathison builds
« Reply #5 on: February 29, 2008, 09:55:08 AM »
Quote from: Joey Mathison 9806 on February 25, 2008, 04:10:33 PM
how long is the lines on the molly

Not sure of length or diameter but am pretty sure its a monoline.   LL~ LL~ LL~
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Tight lines,

Tom Perry
 Norfolk, Virginia

Offline Joey Mathison 9806

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Re: Some more Bob Mathison builds
« Reply #6 on: February 29, 2008, 05:37:16 PM »
yes that sounds like my dad he always did very well with one line
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Offline Robert Mathison

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Re: Some more Bob Mathison builds
« Reply #7 on: March 01, 2008, 05:37:51 AM »

 JOEY,  DID YOU EVER RUN THAT  AME .049 I SENT YOU?  I JUST FOUND [3] MORE  NIB .049'S SO LET ME KNOW.
                      DAD
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Offline Joey Mathison 9806

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Re: Some more Bob Mathison builds
« Reply #8 on: March 01, 2008, 07:00:40 AM »
i have been trying to use it on a foam wing combat plane and it is not giving good engine runs always goes lean after about 30 seconds i will continue to play with prop and fuel combos untill i make it happy.
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Offline Robert Mathison

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Re: Some more Bob Mathison builds
« Reply #9 on: March 01, 2008, 08:22:46 AM »

 JOEY, YOU SHOULD TRY A SMALL BLATER TANK, JUST A SLIGHT PRESSURE . YOU COULD TRY A BALLOON TANK AND IT SHOULD RUN OK.       DAD
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Offline Joey Mathison 9806

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Re: Some more Bob Mathison builds
« Reply #10 on: March 01, 2008, 01:07:20 PM »
dad the foam winged combat plane is using a bladder tank
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Offline minnesotamodeler

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Re: Some more Bob Mathison builds
« Reply #11 on: March 01, 2008, 03:56:30 PM »
I have found a common problem with Norvels of most any stripe--crankshaft fit is a little too tight.  As it heats up (that first 30 sec.) it gets tighter; your engine is not going lean, it's binding up.  I actually had one seize in the air; turned OK after it cooled down.  I tore several of mine down and lapped the shafts in with toothpaste and an electric drill. Seems to solve the problem, at least so far. Time will tell if I've shortened their lives any.

--Ray 
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--Ray 
Roseville MN (St. Paul suburb, Arctic Circle)
AMA902472

Offline Joey Mathison 9806

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Re: Some more Bob Mathison builds
« Reply #12 on: March 01, 2008, 08:08:06 PM »
thanks ray i will give that a shot
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200 mph man ama#9806 joey mathison

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