A return to model building and flying. Part 67
What Can I say?
it all started with good intentions! Get the Bearcat finished and ready
for the Nationals, after all I had two months to do it in. Ha! Where
have I heard that before?
That model must hate me and me it! I
was still having problems with it, for too many to even begin to
mention. But this was the final result.
Looks pretty doesn't it. Remember,
beauty is only skin deep!
I always knew the undercarriage was
a potential source of trouble from the moment I looked at it, I have
seen free flight models with better hardware attachment than this
design,for it's intended purpose, it's just plain Wrong! .
And sure enough after a couple of
landings it started to show sign's of serious failure. Not only that
the first flight was awful, bouncing around in a breeze and being
almost impossible to hold at anything like 30 degrees.
So it was back home, add lots of
lead ( I'm running out ) to the outboard wing, and hack away the at the
UC mounts in the hope of strengthening them, a task made no easier by
the original design.
Placing blocks either side of the
original mount was the only way I could find room for saddle clamp
screws. But in the end I managed it and sheeted in the lower surface of
the wing across the the UC mount. It's all wrong, but the best I can do
without building another wing.
Back at the field, the extra lead
helped but it still floundered around like a sick whale in in a gentle
breeze when flying slowly. In a last ditch effort and running out of
ideas, I set the line rake as far back as I could. Instant change, with
it holding it's angle with no problem! I have never seen line rake have
that much effect before so I was a little surprised. Only problem
was, what would it so in a wind?
home I stuffed more lead into
the Corsair wing too, I had already upgraded the 36 to a 40 with no
problem, it enabled me to remove some of the lead i had in nose and
gave a little more power. Frightning when you think that the model was
designed for a 15-19 size engine? My forward planning when I convetred
the model for CL and Carrier, although very time consuming originally,
had paid off in this
department. Then I waited for the Nationals.
Heath is known for it's
windy tendencies, flat and windswept features are good for helping
fully laden military aircraft take to the air, but a pretty poor choice
for model flying! even if it
is big and expansive.I have known wind at this location,
but nothing like this before; although you would never guess it from
looking at the pictures. Last year was bad but flyable, this year was
bordering on, is it worth it? But on the Saturday I did try. After one
hairy flight with the un-blooded Bearcat in Basic, and actually
managing to get it down (more by luck than judgement) onto the deck, I
was to say the least, glad it was over. What's more the modified UC
stood up to it, so at least that was a success.
The Corsair handled the wind
reasonably well but I was struggling on the slow run with no attempt to
do things properly. Landing was another matter. It just would not come
down. A characteristic of this model it would seem? I bounced, I just
missed, I hit the ramp and bounced, until I finally ran out fuel and
luck and it rolled of the end of the deck to safety on the grass.
Sunday dawned and it was even worse,
with insane gusts of wind blowing across the openness, and having to
lean into wind to walk at times. Sometimes you have to make the
decision, and I chose to write it all off as bad weekend and wait with
intact models for the next comp and the next Nationals. Nothing would
be proved or be worth the risk, It may have been different if I
had proven models that I was used to, or models set up for extreme
conditions. but these are not. One thing I did bring away with me was a
determination to practice in the wind, and not in the calm. If I can
fly in wind I can fly in calm weather, so there is no point practising
the last half an hour spent in the CD's
tent talking to people, it was becoming evident that there is s
revival of interest in Class One Carrier, inspite of all it's hairy
brute force and complexity; or maybe because of it it? I certainly came
away with with lots of ideas for making the Corsair a
little more competitive, or even in my case a little more controllable.
So maybe it was not a totally wasted weekend.
The Corsair looks attractive in flight.
the Corsair was never
meant for Class One, Andy Housden's silver tongue talked me into it. I
just wanted to make a model that was in the
spirit of Carrier for Basic, rather than an out and out competition
model, I think
I have at least succeeded on that score, even if the competition scores
will be pretty dire! It's great pity that there are not more kits or
RTF RC models that are the right size and suitable for conversion like
this one. It's bordering on the maximum size to fly of a standard
carrier deck; I don't have much clearance if there is a conning tower
Thanks to Paul Breuring, Andy Prime and Max Ewen for the photographs
you are interested, there are more
pictures at these locations. This is how most of my images will be
displayed in future, from an image service to save me time. So be sure
to click on the links if you want to see stuff.
The server can be a
slow at times, but Hey! so far it's free, so give it time if nothing
seems to happen, and also try again if you get a
message about, 'Connection timed out'..? It will work, It
to try and cache the images before displaying them, so will be worse on
a slow connection. But at least it's better than Google's Picasa
rummaging around on my hard drive. I know where my images are thank
you; I don't want anyone or thing snooping around looking for them.
Like Barkston Old
Warden seems to have it's own weather
system too, but usually much kinder than the former, and it was at a
ubsequent meeting at Old
Warden, after several sudden engine stops with the Bearcat after take
off, and eliminating every possible cause, the finger finally pointed
at the tank.
At home I discovered that the tank in the Bearcat was aligned
in totally the wrong orientation, with the feed pipe sucking from the inboard side
of the tank? Managing to get a flight in at the Nationals must have
been pure luck!
This tank problem I can fairly
safely place at Brodak's feet. Nowhere on the Brodak site is there and
indication of the internal plumbing of their metal tanks. the entry
point of a tube gives no certain clue as to where it eventually ends up
inside. They also have a tendency to be sloppy about the photography of
components, which means that they cannot be relied upon as a guide to
how something should be used. Some of the arrangements and orientations
seem to be very strange to me personally. Maybe I am just not used to
the Brodak way of doing things, but that must include the rest of the
world outside the US too?
In the end I had to surgically
remove the rear of the tank and completely re-plumb it into a baffled
uniflow type. I would have been better served making it myself in the
first place! So much for saving time by buying a tank?
These infrequent updates on my
modelling activities may get even more scarce until next year, as I am
about to embark on a ten week Open University course on Linux (I must be mad!. I am
certainly not going away, ever hopeful of some good weather, and
looking forward to a carrier comp that my club is hosting toward the
end of October.
So watch this space. :)