At the design level, Ive been trying to find more info on the Nemesis DR90 design. Has anyone got copies of old Sport Aviation mags they could scan?
DECEMBER 1993 Pg 40 A Closer Look at Nemesis/Jack Cox
AUGUST 1997 Pg 75 Fluid Dynamics Analysis Nemesis and Shadow-David Lednicer
Latest search for extruded polystyrene foam suppliers in Melbourne area:
For nominal 2.4 x .6 m and 100mm thick:
COMPANY TEL PRODUCT PRICE
Aus-styrene 9687 7500 Isoboard $64 (75mm thick)
Styrapak 9308 8455 $190...
Just saw an article about a US guy who built an HPA for his son, and want to compete in the Kremer competition. They are up against a team from Southhampton Uni, Uk.
Its as a demo joined to the UK Olympics and they are trying to gain coverage as an Olympic sport!
just spent the last few days at the CAFE challenge. A few pictures about the aircraft:
Vortilons - on fuse near wing interesection to help with separation(stickers were put on only after the race!)
Flap - they said it was slotted. I think more due to the fact that they took the flap...
Duc looks interesting.
Cant bring myself to "bend" the prop as in IVOPROP. For me it shouts of imprecision (even tho its sure that other normal fixed pitch props bend in flight..).
Im looking for alternatives for a variable pitch prop for low horsepower engine (40 - 65 hp).
Anyone have any good suggestions?
What Ive found so far:
Neuform - for CT
Air-contact - since dissapeared as has Kiev...
Or just the hub?
Apart from the Rotec radial check out the guys at Valach Motors.
45hp, 28kg 7cyl 800cc and reasonable price
they also have a 420cc.
Someone on AIRPIGZ suggested a Ford Trimotor...!
Dont design another motor, just design a supercharger to stick on it please!!
A quick question about 1 of your older posts. What size are the tires and do you have any specs on weight complete with hubs ?
Any comments from other CriCri owners about use on Grass runways?
wish I could join you there but...
Water cooling (eveaporative) - most all unlimiteds use ADI and a couple use boil off cooling for 0 cooling drag. Check "Peter Law filetype:pdf" in google, who has designed numerous cooling systems for successful racers.
I understood that the...