# The big video topic

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#### Erik Snyman

##### Well-Known Member
Hmmm, pretty good names Ron. I haven't been so inventive with cat names. Of the 4 cats we've had over the years there was, kitty girl, kitty boy, white kitty and now again, another kitty girl. With dogs and ferrets, it's a different story.
Bob, "what's his name"
An easier one: the canine is Dawgg and the feline is Katt.
Erik in Oz.

#### henryk

##### Well-Known Member
BTW=SUPERFLYWHEEL specific energy (kWh/kg) is greater as LiPo is...

#### robertl

##### Well-Known Member
Nice to know there are people experimenting with stuff, expecially aviation.
Bob

#### billyvray

##### Well-Known Member
Would be cool if one could make a flywheel launch for a small sailplane, using small high rpm engine on board. Then glide and recharge and use as needed. Not a motorglider, but a reusable lift engine.

#### proppastie

##### Well-Known Member
Log Member
Or spin it up on the ground for a 5 minute powered launch. Somehow I think the weight would be more than a 20 hp 2 stroke and 5 minutes of gas. I leave the calculation of the flywheel to the student for homework.

#### SlowFlight

##### Member
Prop drag = negative pitch centered at the flywheel axle ahead of center of lift. Maybe if the flywheel were located at the tail, where the tail forces could shift the flywheel weight and the main would be sized for the increased torque weight. Then to control lift use the rudder for gyroscopic load induced changes, and the elevator for weight load ratio of effects... and for yaw... Then reverse gyroscopic load induction as the propeller becomes a windmill. Interesting.

#### henryk

##### Well-Known Member

=iff water is froozen...

#### Speedboat100

##### Well-Known Member
I have seen a landing on asphalt with floats.

#### Speedboat100

##### Well-Known Member
Very short...and lotsa sparks.

#### Erik Snyman

##### Well-Known Member
Very short...and lotsa sparks.
Snow is just converted water, anyway....

Racing drone:

#### DangerZone

##### Well-Known Member
HBA Supporter
Racing drone:
Oh my, LDPV in Croatia!

I often fly to this airport, the scenery around is beautiful. I even flew through the canyon which leads to this airport. Nice.

This is LDPV from the other perspective:

BJC

#### dragon2knight

##### Well-Known Member
HBA Supporter
Extremely cool slo mo, super high resolution video of some really nice planes at an airshow!

#### robertl

##### Well-Known Member
That's freakin' amazing ! Thanks Chop !
Bob