|
|
Post by Johansson on Dec 5, 2016 0:15:12 GMT -5
Hi Rene,
Being an old fashioned mechanical engine without the ECU and stuff the Viper should be pretty straightforward to start and run, but since a single forgotten "must do" could transform the engine into a large paper weight I won´t take any chances with it.
I´ll follow your thread with great interest!
Cheers!
/Anders
|
|
|
|
Post by Johansson on Dec 20, 2016 17:27:04 GMT -5
Look what I picked up today!   Cheers! /Anders |
|
|
|
Post by racket on Dec 20, 2016 20:36:18 GMT -5
Now you can get her spinning :-)
|
|
|
|
Post by Johansson on Dec 21, 2016 2:56:32 GMT -5
Now you can get her spinning :-) Not really, I am missing the bracket that connects the starter with the engine so I have to make one. Apparently the starter was regarded part of the aircraft which is why most Viper 301´s for sale are missing them. The bracket have for some obscure reason been considered neither a part of the engine nor the aeroplane so there must be a big pile of them somewhere. |
|
|
|
Post by Johansson on Mar 1, 2017 18:08:26 GMT -5
A question about the starter for the Viper. If the starter motor is to charge the batteries once the engine is running like it is supposed to, should the starter switch be a flip type so the solenoids are activated all the time the engine is running? How must the electric system be built for this to work?
Can it be used solely as a starter with a push button start so it just spins along without being connected to the batteries when the engine is running?
Cheers!
/Anders
|
|
|
|
Post by smithy1 on Mar 1, 2017 21:45:54 GMT -5
A question about the starter for the Viper. If the starter motor is to charge the batteries once the engine is running like it is supposed to, should the starter switch be a flip type so the solenoids are activated all the time the engine is running? How must the electric system be built for this to work? Can it be used solely as a starter with a push button start so it just spins along without being connected to the batteries when the engine is running? Cheers! /Anders Yeah..they're just a starter/generator, nothing special...Once the pilot turns the starter off, it can then be switched to a generator via a couple of relays. You can just use it for a starter if you wish, just disconnect the generator side connections and you'll be good to go. A lot of the jet dragsters use a starter on a bayonet type mounting which can be removed after starting, saves a lot of weight too!! Cheers, Smithy. |
|
|
|
Post by Johansson on Mar 3, 2017 7:30:05 GMT -5
That is good news Smithy, it sure weighs a lot since I had a hard time lifting it in place while sitting beneath the Viper. Now I just need to get a connection piece between starter and Viper, I´ve emailed Harry at jetenginetrader.co.uk to hear if he has such a piece for sale. I could make one myself but I assume I need to the the shafts perfectly aligned so I won´t toast the slipper clutch in the starter, so I´d prefer an original part unless it cost an arm and a leg. Cheers! /Anders |
|
rpwp
Member
Joined: March 2016
Posts: 48 
|
Post by rpwp on Apr 16, 2017 16:23:04 GMT -5
Hi Anders,
I got my s/g adapter from Everett Aero in the UK it was an extra to the S/G which was purchased from them at the same time. They may have more of them but they didn't have the V band clamp that came from a wrecking yard in Florida for USD60.
I've posted the s/g wiring and pics on my thread sorry for the delay mate!
Cheers
Rene
|
|
|
|
Post by Johansson on Apr 18, 2017 2:30:41 GMT -5
Hi Anders, I got my s/g adapter from Everett Aero in the UK it was an extra to the S/G which was purchased from them at the same time. They may have more of them but they didn't have the V band clamp that came from a wrecking yard in Florida for USD60. I've posted the s/g wiring and pics on my thread sorry for the delay mate! Cheers Rene Hi Rene, Thanks for the hint, I´ll send Everett an email about it. Large v-band clamps can be bought new in any size nowadays for relatively little money so that isn´t a concern. I´ll check the wiring pics out! Cheers! /Anders |
|
diegodsp
New Member
Joined: February 2020
Posts: 8
|
Post by diegodsp on Feb 3, 2020 16:51:56 GMT -5
Hello friend, I recently purchased two rolls royce viper 540. However, I discovered that the engine body is made of magnesium with thorium, a radioactive element. you as already had a viper 301 know something about the dangers about it to guide me? thanks
|
|
|
|
Post by g8rpi on Feb 5, 2020 15:39:00 GMT -5
The radioactivity in magnesium-thorium alloy is not a health hazard unless you grind or burn it and breathe the dust/fumes or you sleep on top of the engine.
Robert G8RPI (Radiation detection is another hobby of mine)
|
|
diegodsp
New Member
Joined: February 2020
Posts: 8
|
Post by diegodsp on Feb 6, 2020 10:37:28 GMT -5
Hi friend.   The radioactivity in magnesium-thorium alloy is not a health hazard unless you grind or burn it and breathe the dust/fumes or you sleep on top of the engine. Robert G8RPI (Radiation detection is another hobby of mine) |
|
|
|
Post by g8rpi on Feb 8, 2020 13:20:24 GMT -5
As you can see the level of radiation your counter is indicating is very small, 10-20uSv/hr on contact. I can't identify the vounter you re using, but it appears to be a hobbyist unit. These normally use un-compensated tubes like the ex-soviet union SBM-20. These have the response specified for Cs137 or Co60 so will significantly over read when exposed to the beta particles and lower energy gammas emitted by Thorium 232 and it's decay products. Don't machine it or burn it or sleep right next to it and there is nothing to worry about.
Robert G8RPI.
|
|
diegodsp
New Member
Joined: February 2020
Posts: 8
|
Post by diegodsp on Feb 8, 2020 18:17:52 GMT -5
Using geiger counter br-9b
|
|
