Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Delta gurus I have a question

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Old 10-25-2007, 10:23 AM
  #26
crazyp 2
 
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Default RE: Delta gurus I have a question

Hi ,
I have a delta called FLY SWALLOW bought at the beginning of the year as an ARTF. On checking the balance after the build which was carried out to the letter of the instructions and fitted with an asp 46 glow engine. it was found to be extremely nose heavy, to the point it needed the equivelant weight of an Ervine 40 glow on the rear end to balance it.
It has now been flown about six times after being severely altered from the instructions and now flies reasonably well, with some final sorting still to do.
Its Fast and very aerobatic and able to take off from our grass field as it has an undercarriage, stalls are a non event, the only time you find it hard to control is when it flies so slowly there is no airflow over the elevons or rudder.
Has anyone bought one of these and experienced the same problem of balance after building?
CRAZYP 2

If anyone has and is experiencing similar problems let me know as this one is now flyable.
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Old 10-25-2007, 01:58 PM
  #27
Flyboy Dave
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Default RE: Delta gurus I have a question

....Welcome to R/C Universe, crazyp 2....[sm=thumbup.gif]

The Fly Swallow looks like a nice plane....I don't have one though. I wonder why
the c/g was so far off ? I have a Bobcat that had the c/g off as well. In fact the plane
wouldn't rotate and take off with the factory balance. []

Flyboy Dave.
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Old 10-25-2007, 03:57 PM
  #28
Crazy4Flight
 
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Default RE: Delta gurus I have a question

Several Whiplashes, Oakdale Phenome, BTE Delta Vortex, Laser Arrow, Kangaroo, Rafale....

The BTE is the easyest to fly having wheels and a large wingspan.

Working on a Diamond Dust and Mini D-Dust.

The Kangaroo I put canards on to end the delta wing tuck.
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Old 10-28-2007, 01:26 PM
  #29
R Molina
 
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Default RE: Delta gurus I have a question

whats thr proper CG for delta's ?
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Old 10-28-2007, 03:36 PM
  #30
Mike Connor
 
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Default RE: Delta gurus I have a question


Quote:
ORIGINAL: R Molina

whats thr proper CG for delta's ?
Usually 10-20% MAC
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