Conversation so far:
Who is Eileen Garrett?
On 7 October 1930 it was claimed by spiritualists that Eileen J.
Garrett made contact with the spirit of Herbert Carmichael Irwin.
Did HArry try to prove Eilleen was a fake?
Garrett's claims have since been questioned.
The magician John Booth analysed the mediumship of Garrett and the paranormal claims of R101.
What kind of claims did Garrett make?
According to Booth Garrett's notes and writings show she followed the building of the R101 and she may have been given aircraft blueprints by a technician from the airdrome.

Question: What is R101?
Self-contained rewrite: What is the R101 building that Eileen Garret followed?