Several 2 stroke engines have been touted for the Quickie. One firm had two different Kawasaki conversions available until Kawasaki discovered what was going on and pulled the rug out from under them. All of the se convesrions are just that - conversions. None were designed for an aircraft duty cycle. The typical two stroke has a narrow power band and develops this power at too high an RPM for good propellor eficiency. In ultralights these engines work because of the narrow speed range required. In an aircraft such as the Quickie it is difficult to make a high revving, narrow power band engine work. One example we looked at was the four cylinder KONIG radial engine. The aircraft was no faster than a well built stock Quickie and climb was only slightly better, in spite of the claimed 30-35 HP with 35 HP a Quickie will have a top speed of 170 MPH and climb about 1200 ft/min. But wait you say, what if they have a reduction drive, won't that drop the RPM at the prop?
Yes it will, but it also makes the already narrow power band even narrower. For example, if you have an engine that develops peak power at 8000 RPM and has a 1500 RPM power band, then you attach a 2:1 reduction drive unit. Prop RPM is now 4000 which would permit good efficiency, but the power band is now only 750 RPM wide. What this means is that if you put a prop on that allows the aircraft to fly at it’s cruise speed, you won’t be able to take off or climb because the engine won’t be able to “get on the pipe”. On the other hand if you see a prop that climbs well you will run out of RPM very quickly and not be very fast while burning a lot of fuel.
The only real answer is to design an engine for lower RPM and wide power bands. Unfortunately very few two strokes fit the bill. There is one, however, atid that is the Nelson engine. The Nelson is a 45 h.p., 4 cylinder opposed 1000 CC, dual ignition two stroke that is FAA Certified. It has been flight tested on the Quickie By:
Nelson Aircraft Company
3659 Arnold Avenue
Naples. Florida 33942
The Nelson is an old engine which has been out of production for many years, Charlie Rhoades of Nelson Aircraft is negotiating to get the engine back in production. He has all of the tooling such as forge dies, molds, etc. The best thing about the Nelson, other than being FAA certified, is that the weight and size are perfect for the Quickie when it becomes available. Anyone interested should stay in touch with Nelson or with us.
It’s interesting to note that only ONAN powered Quickies flew to Oshkosh this year. This is in spite of the fct that two of the companies proporting to have alternate engines are within easy nonstop Quickie ratige of Oshkosh.
Nelson Powered Quickie
Vortex Generators work, that’s the report that keeps coming in from users. If you have the GU airfoil canard on a Q2 or Quickie you should install a set - it’s cheap insurance. The only real drawback is at flyins where “weinies” just can’t seem to resist “tweaking” them.
The Quickie version is slightly different from the Q2 generators. In fact we have even revised them again in order to reduce the drag while still maintaining their effectiveness. The size of the generators was not changed, so if you have an early Quickie set and wish to update, we’ll send you the new layout drawing.
Price for the Vortex Generators: $15.00, please specify tf for the Q2 or Quickie.
QUICKIE KIT PRICES
Current delivery on a Quickie Kit is 3 weeks. Most components, including engines, are in stock.
Many dealers have Quickie Kits in stock so call your local dealer for availability.
Current prices are $4,995.00 for Package 1 and $2,200.00 for Package 2. Note that the complete kit now consists of two packages instead of the original three.
Available options are as follows:
|Large Tire Option.
|22.5 h.p. Option including Kevlar engine mount.
|Kevlar engine mount separate.
|Custom Upholstery set.
|Prefabricated fuel tank. (Standard with Package 1)
|Communications or Navigation Antenna kit.
|44” diameter propeller. (Discounted price for currently flying builders).