OK. I have stood under pylons as a pylon referee and lap counter in maybe 25 Quickie 500 races and I see they decelerate for the turns.
I know a "hot" R/C pylon plane can achieve 220 mph on the straight aways. Lets look specifically at the US FD5 team. A good race time is 66 seconds to complete the 2.5 mile circuit (10 laps). If that plane is doing the 180 mph in the straight-aways, but the whole circuit averages out to 136 mph (do the math), then he is slowing down appreciably in the turns.
http://www.supertrc.com/teamUSAf5d/index.htm
How am I doing so far.
Anyone ever recorded a "g" reading higher than 20 in an R/C model without making contact with the ground?
The sled test used for helmets and car restraints is a 50g impagt - equivalent to hitting a solid wall
http://www.gforce.com/products/srs1/srs1.html
http://www.nhtsa.gov/cars/rules/rulings/80g/80giv.html
Frontal impact of a car traveling 30 mph and hitting a non-moving wall is 49g.
1) For unbelted drivers
Depowering by 20-35 percent had very little impact on unbelted driver chest g's in both 30 mph and 35 mph crash testing. In Model I-96, chest g's went up by 2 (49 to 51) in 30 mph testing and went down by 2.9 (61.6 to 58.7) in 35 mph testing. Modelling efforts by Ford show that chest g's should go up by about 2-3 g's with depowering in both instances. NHTSA modelling shows chest g's going up at 40.2 and 64.4 kph, but down at 56.3 kph (see Table III-13). It is believed
that the energy absorbing steering column is the reason that chest g's do not increase much on the driver side with the driver unbelted. Model I-96's test results are very similar to an average of the fleet in NHTSA compliance testing for unbelted drivers of 48 chest g's.
The calculated increase in fatalities using the Model I-96 30 mph test results are:
49 to 51 g's, baseline to depowered tests = a 2 g increase
Only 9 G difference between supposedly making a turn and hitting a wall at 30 mph? I don't think so.
I'll wait breathlessly for your counter examples of that 40 g turn. (I'd love to know how the receiver batteries are prevented from blowing out the side of the fuselage).
