Du-Bro 505 Vintage Chopper, one of the first ones.
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Du-Bro 505 Vintage Chopper, one of the first ones.| alvinonline |
 Posted: Aug 4 2010, 01:27 AM
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 Administrator  Group: Admin Posts: 5,040 Member No.: 1 Joined: 12-May 04  |
Back in 1972, Du-Bro came out with one of the very first hobby RC helicopter kits.
I bit for it and got one, never got it to do more than bounce around a little at old GCRC "Plum Forty" flying field up on Celeste Road. Nice to see one actually flying with modern equipment and already knowing how to fly a chopper surely helps. -------------------- Alvin Reed™ - MARCMAF Admin
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| Osirus711 |
Posted: Aug 4 2010, 07:42 AM
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 ACMA Combat Director & MA 49 Winner  Group: Members Posts: 562 Member No.: 34 Joined: 25-June 04 |
Is the resulting engine torque from spinning the prop driving the rotors? I have never seen that! Interesting....
-------------------- Andrew Smith
Hey I can fix that! AMA# 485148 Boss Member "Screwball"  Mystery Aircraft Forty Nine Winner |
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 Johnny_J |
Posted: Aug 4 2010, 09:35 AM
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 Gliders/Sailplanes Moderator  Group: Mods. Posts: 1,096 Member No.: 325 Joined: 29-January 07 |
Looks like it. I like the fuel tank on the main shaft incorporated into the head!  -------------------- |
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| alvinonline |
Posted: Aug 4 2010, 06:45 PM
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Administrator Group: Admin Posts: 5,040 Member No.: 1 Joined: 12-May 04 |
Yep, engine torque made rotor head spin opposite from direction small airplane propeller is spinning on very top. And if anyone is wondering how to get the throttle push rod to spinning engine, the main shaft was hollow and push rod went up through it. All metal fuel tank made for no fuel level visibility. -------------------- Alvin Reed™ - MARCMAF Admin
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