Flying Characteristics - Carf-Models Ultra Lightning Instruction Manual

both positions. With full flaps reduce elevator Expo to 30% and Aileron Expo to 30%.
Ray: 1st position 15 degrees 'down', Landing position 45 degrees 'down'. Mix in about 2mm
'down' elevator with flaps in both positions.
Ray Labonte's landing circuit comments: "Downwind leg with 1st position flaps deployed and
landing gear down, throttle is set to about 45 - 50% for a slow steady approach speed. Full flaps
are selected before final turn and throttle is advanced to about 65% giving a very stable
approach at about 50 - 60 mph. Once landing on the strip is assured a steady decrease in power
leads to an almost perfect spot landing every time. I've been very impressed with how pre-
dictable this airplane is to fly on approaches and landings, and it's one of the easiest planes of
this type I have ever flown. I really enjoy the landing patterns !"
Don't forget that the flaps also act as spoilers, due to the reflexed top surface, but this has very
little apparent effect at small deflections. The flaps and spoilers are extremely powerful when
fully deployed on final landing approach. Of course this does make it easier to set your descent
angle and ultimate touch down point, with no tendency to 'float' down the runway in the 'ground
effect' - and with a higher throttle setting the time to spool-up if you need to make a go-around
is much faster than from idle. It is very important to ensure that flaps move the same amount, as
they are very effective and would cause a strong rolling tendency if not very similar.
Important: For landing you must remember to rotate the nose up clearly to a positive angle-of-
attack to slow the plane down on final approach, as the wing has a fully symmetrical section and
will not generate sufficient 'lift' otherwise.

Flying Characteristics

The CARF-Models Ultra Lightning is a precision flying machine. It's the aerobatic answer to 'speed' !
For aerobatics you need a constant-speed flying style. This means that the plane must be
'draggy' in the vertical downlines, but powerful in the vertical uplines. The average speed must
not exceed the limits of structural failure - and yes, in aerobatics, size does matter.
Do you want to make a 1
wards with authority, and then still have enough time to make a four or 5-point roll on the verti-
cal downline before you pull out cross-box ?
Do you want to be make a knife-edge to knife-edge snap at about 3/4 throttle without blowing
the whole plane apart ?
Do you want to make a horizon-to-horizon slow roll without much roll and pitch compensation ?
You want it to look s m o o o o t h , and you don't want to correct much.
Do you want to perform tight square-loops, with rolls and snaps in the straight lines, without
stalls and fading control authority ?
Do you want to make rolling circles with opposing roll directions without getting out of sight
because of too high speed ?
All this is possible with the CARF-Models Ultra Lightning. ONLY the pilot is the limit. With the set-
tings given in this instruction manual you can enjoy the whole wide performance envelope as if
this were a top class aerobatic plane.
The CARF-Models Ultra Lightning is designed for 'Unlimited Aerobatics'. It combines design fea-
1 / vertical positive snap upwards, pull 180 degrees to vertical down-
2
30